diff options
120 files changed, 1990 insertions, 1431 deletions
diff --git a/block.c b/block.c index f4648e916f..823ff1d7ab 100644 --- a/block.c +++ b/block.c @@ -536,9 +536,10 @@ BlockDriver *bdrv_probe_all(const uint8_t *buf, int buf_size, return drv; } -static int find_image_format(BlockDriverState *bs, const char *filename, +static int find_image_format(BdrvChild *file, const char *filename, BlockDriver **pdrv, Error **errp) { + BlockDriverState *bs = file->bs; BlockDriver *drv; uint8_t buf[BLOCK_PROBE_BUF_SIZE]; int ret = 0; @@ -549,7 +550,7 @@ static int find_image_format(BlockDriverState *bs, const char *filename, return ret; } - ret = bdrv_pread(bs, 0, buf, sizeof(buf)); + ret = bdrv_pread(file, 0, buf, sizeof(buf)); if (ret < 0) { error_setg_errno(errp, -ret, "Could not read image for determining its " "format"); @@ -937,7 +938,6 @@ static int bdrv_open_common(BlockDriverState *bs, BdrvChild *file, goto fail_opts; } - bs->request_alignment = drv->bdrv_co_preadv ? 1 : 512; bs->read_only = !(bs->open_flags & BDRV_O_RDWR); if (use_bdrv_whitelist && !bdrv_is_whitelisted(drv, bs->read_only)) { @@ -1017,7 +1017,7 @@ static int bdrv_open_common(BlockDriverState *bs, BdrvChild *file, assert(bdrv_opt_mem_align(bs) != 0); assert(bdrv_min_mem_align(bs) != 0); - assert(is_power_of_2(bs->request_alignment) || bdrv_is_sg(bs)); + assert(is_power_of_2(bs->bl.request_alignment)); qemu_opts_del(opts); return 0; @@ -1653,7 +1653,7 @@ static BlockDriverState *bdrv_open_inherit(const char *filename, /* Image format probing */ bs->probed = !drv; if (!drv && file) { - ret = find_image_format(file->bs, filename, &drv, &local_err); + ret = find_image_format(file, filename, &drv, &local_err); if (ret < 0) { goto fail; } @@ -2184,9 +2184,9 @@ static void bdrv_close(BlockDriverState *bs) bs->backing_file[0] = '\0'; bs->backing_format[0] = '\0'; bs->total_sectors = 0; - bs->encrypted = 0; - bs->valid_key = 0; - bs->sg = 0; + bs->encrypted = false; + bs->valid_key = false; + bs->sg = false; QDECREF(bs->options); QDECREF(bs->explicit_options); bs->options = NULL; @@ -2323,116 +2323,6 @@ int bdrv_check(BlockDriverState *bs, BdrvCheckResult *res, BdrvCheckMode fix) return bs->drv->bdrv_check(bs, res, fix); } -#define COMMIT_BUF_SECTORS 2048 - -/* commit COW file into the raw image */ -int bdrv_commit(BlockDriverState *bs) -{ - BlockDriver *drv = bs->drv; - int64_t sector, total_sectors, length, backing_length; - int n, ro, open_flags; - int ret = 0; - uint8_t *buf = NULL; - - if (!drv) - return -ENOMEDIUM; - - if (!bs->backing) { - return -ENOTSUP; - } - - if (bdrv_op_is_blocked(bs, BLOCK_OP_TYPE_COMMIT_SOURCE, NULL) || - bdrv_op_is_blocked(bs->backing->bs, BLOCK_OP_TYPE_COMMIT_TARGET, NULL)) { - return -EBUSY; - } - - ro = bs->backing->bs->read_only; - open_flags = bs->backing->bs->open_flags; - - if (ro) { - if (bdrv_reopen(bs->backing->bs, open_flags | BDRV_O_RDWR, NULL)) { - return -EACCES; - } - } - - length = bdrv_getlength(bs); - if (length < 0) { - ret = length; - goto ro_cleanup; - } - - backing_length = bdrv_getlength(bs->backing->bs); - if (backing_length < 0) { - ret = backing_length; - goto ro_cleanup; - } - - /* If our top snapshot is larger than the backing file image, - * grow the backing file image if possible. If not possible, - * we must return an error */ - if (length > backing_length) { - ret = bdrv_truncate(bs->backing->bs, length); - if (ret < 0) { - goto ro_cleanup; - } - } - - total_sectors = length >> BDRV_SECTOR_BITS; - - /* qemu_try_blockalign() for bs will choose an alignment that works for - * bs->backing->bs as well, so no need to compare the alignment manually. */ - buf = qemu_try_blockalign(bs, COMMIT_BUF_SECTORS * BDRV_SECTOR_SIZE); - if (buf == NULL) { - ret = -ENOMEM; - goto ro_cleanup; - } - - for (sector = 0; sector < total_sectors; sector += n) { - ret = bdrv_is_allocated(bs, sector, COMMIT_BUF_SECTORS, &n); - if (ret < 0) { - goto ro_cleanup; - } - if (ret) { - ret = bdrv_read(bs, sector, buf, n); - if (ret < 0) { - goto ro_cleanup; - } - - ret = bdrv_write(bs->backing->bs, sector, buf, n); - if (ret < 0) { - goto ro_cleanup; - } - } - } - - if (drv->bdrv_make_empty) { - ret = drv->bdrv_make_empty(bs); - if (ret < 0) { - goto ro_cleanup; - } - bdrv_flush(bs); - } - - /* - * Make sure all data we wrote to the backing device is actually - * stable on disk. - */ - if (bs->backing) { - bdrv_flush(bs->backing->bs); - } - - ret = 0; -ro_cleanup: - qemu_vfree(buf); - - if (ro) { - /* ignoring error return here */ - bdrv_reopen(bs->backing->bs, open_flags & ~BDRV_O_RDWR, NULL); - } - - return ret; -} - /* * Return values: * 0 - success @@ -2644,30 +2534,30 @@ void bdrv_get_geometry(BlockDriverState *bs, uint64_t *nb_sectors_ptr) *nb_sectors_ptr = nb_sectors < 0 ? 0 : nb_sectors; } -int bdrv_is_read_only(BlockDriverState *bs) +bool bdrv_is_read_only(BlockDriverState *bs) { return bs->read_only; } -int bdrv_is_sg(BlockDriverState *bs) +bool bdrv_is_sg(BlockDriverState *bs) { return bs->sg; } -int bdrv_is_encrypted(BlockDriverState *bs) +bool bdrv_is_encrypted(BlockDriverState *bs) { if (bs->backing && bs->backing->bs->encrypted) { - return 1; + return true; } return bs->encrypted; } -int bdrv_key_required(BlockDriverState *bs) +bool bdrv_key_required(BlockDriverState *bs) { BdrvChild *backing = bs->backing; if (backing && backing->bs->encrypted && !backing->bs->valid_key) { - return 1; + return true; } return (bs->encrypted && !bs->valid_key); } @@ -2689,10 +2579,10 @@ int bdrv_set_key(BlockDriverState *bs, const char *key) } ret = bs->drv->bdrv_set_key(bs, key); if (ret < 0) { - bs->valid_key = 0; + bs->valid_key = false; } else if (!bs->valid_key) { /* call the change callback now, we skipped it on open */ - bs->valid_key = 1; + bs->valid_key = true; bdrv_parent_cb_change_media(bs, true); } return ret; diff --git a/block/Makefile.objs b/block/Makefile.objs index 44a5416225..2593a2f8a6 100644 --- a/block/Makefile.objs +++ b/block/Makefile.objs @@ -9,7 +9,7 @@ block-obj-y += block-backend.o snapshot.o qapi.o block-obj-$(CONFIG_WIN32) += raw-win32.o win32-aio.o block-obj-$(CONFIG_POSIX) += raw-posix.o block-obj-$(CONFIG_LINUX_AIO) += linux-aio.o -block-obj-y += null.o mirror.o io.o +block-obj-y += null.o mirror.o commit.o io.o block-obj-y += throttle-groups.o block-obj-y += nbd.o nbd-client.o sheepdog.o @@ -26,7 +26,6 @@ block-obj-y += write-threshold.o block-obj-y += crypto.o common-obj-y += stream.o -common-obj-y += commit.o common-obj-y += backup.o iscsi.o-cflags := $(LIBISCSI_CFLAGS) diff --git a/block/blkdebug.c b/block/blkdebug.c index 20d25bda67..bbaa33fdd8 100644 --- a/block/blkdebug.c +++ b/block/blkdebug.c @@ -37,6 +37,7 @@ typedef struct BDRVBlkdebugState { int state; int new_state; + int align; QLIST_HEAD(, BlkdebugRule) rules[BLKDBG__MAX]; QSIMPLEQ_HEAD(, BlkdebugRule) active_rules; @@ -382,10 +383,10 @@ static int blkdebug_open(BlockDriverState *bs, QDict *options, int flags, } /* Set request alignment */ - align = qemu_opt_get_size(opts, "align", bs->request_alignment); - if (align > 0 && align < INT_MAX && !(align & (align - 1))) { - bs->request_alignment = align; - } else { + align = qemu_opt_get_size(opts, "align", 0); + if (align < INT_MAX && is_power_of_2(align)) { + s->align = align; + } else if (align) { error_setg(errp, "Invalid alignment"); ret = -EINVAL; goto fail_unref; @@ -456,7 +457,7 @@ static BlockAIOCB *blkdebug_aio_readv(BlockDriverState *bs, return inject_error(bs, cb, opaque, rule); } - return bdrv_aio_readv(bs->file->bs, sector_num, qiov, nb_sectors, + return bdrv_aio_readv(bs->file, sector_num, qiov, nb_sectors, cb, opaque); } @@ -479,7 +480,7 @@ static BlockAIOCB *blkdebug_aio_writev(BlockDriverState *bs, return inject_error(bs, cb, opaque, rule); } - return bdrv_aio_writev(bs->file->bs, sector_num, qiov, nb_sectors, + return bdrv_aio_writev(bs->file, sector_num, qiov, nb_sectors, cb, opaque); } @@ -720,6 +721,15 @@ static void blkdebug_refresh_filename(BlockDriverState *bs, QDict *options) bs->full_open_options = opts; } +static void blkdebug_refresh_limits(BlockDriverState *bs, Error **errp) +{ + BDRVBlkdebugState *s = bs->opaque; + + if (s->align) { + bs->bl.request_alignment = s->align; + } +} + static int blkdebug_reopen_prepare(BDRVReopenState *reopen_state, BlockReopenQueue *queue, Error **errp) { @@ -738,6 +748,7 @@ static BlockDriver bdrv_blkdebug = { .bdrv_getlength = blkdebug_getlength, .bdrv_truncate = blkdebug_truncate, .bdrv_refresh_filename = blkdebug_refresh_filename, + .bdrv_refresh_limits = blkdebug_refresh_limits, .bdrv_aio_readv = blkdebug_aio_readv, .bdrv_aio_writev = blkdebug_aio_writev, diff --git a/block/blkreplay.c b/block/blkreplay.c index 525c2d54e0..70650e4be1 100755 --- a/block/blkreplay.c +++ b/block/blkreplay.c @@ -81,22 +81,22 @@ static void block_request_create(uint64_t reqid, BlockDriverState *bs, replay_block_event(req->bh, reqid); } -static int coroutine_fn blkreplay_co_readv(BlockDriverState *bs, - int64_t sector_num, int nb_sectors, QEMUIOVector *qiov) +static int coroutine_fn blkreplay_co_preadv(BlockDriverState *bs, + uint64_t offset, uint64_t bytes, QEMUIOVector *qiov, int flags) { uint64_t reqid = request_id++; - int ret = bdrv_co_readv(bs->file->bs, sector_num, nb_sectors, qiov); + int ret = bdrv_co_preadv(bs->file, offset, bytes, qiov, flags); block_request_create(reqid, bs, qemu_coroutine_self()); qemu_coroutine_yield(); return ret; } -static int coroutine_fn blkreplay_co_writev(BlockDriverState *bs, - int64_t sector_num, int nb_sectors, QEMUIOVector *qiov) +static int coroutine_fn blkreplay_co_pwritev(BlockDriverState *bs, + uint64_t offset, uint64_t bytes, QEMUIOVector *qiov, int flags) { uint64_t reqid = request_id++; - int ret = bdrv_co_writev(bs->file->bs, sector_num, nb_sectors, qiov); + int ret = bdrv_co_pwritev(bs->file, offset, bytes, qiov, flags); block_request_create(reqid, bs, qemu_coroutine_self()); qemu_coroutine_yield(); @@ -107,7 +107,7 @@ static int coroutine_fn blkreplay_co_pwrite_zeroes(BlockDriverState *bs, int64_t offset, int count, BdrvRequestFlags flags) { uint64_t reqid = request_id++; - int ret = bdrv_co_pwrite_zeroes(bs->file->bs, offset, count, flags); + int ret = bdrv_co_pwrite_zeroes(bs->file, offset, count, flags); block_request_create(reqid, bs, qemu_coroutine_self()); qemu_coroutine_yield(); @@ -144,8 +144,8 @@ static BlockDriver bdrv_blkreplay = { .bdrv_close = blkreplay_close, .bdrv_getlength = blkreplay_getlength, - .bdrv_co_readv = blkreplay_co_readv, - .bdrv_co_writev = blkreplay_co_writev, + .bdrv_co_preadv = blkreplay_co_preadv, + .bdrv_co_pwritev = blkreplay_co_pwritev, .bdrv_co_pwrite_zeroes = blkreplay_co_pwrite_zeroes, .bdrv_co_discard = blkreplay_co_discard, diff --git a/block/blkverify.c b/block/blkverify.c index 4045396a3d..da62d75969 100644 --- a/block/blkverify.c +++ b/block/blkverify.c @@ -247,9 +247,9 @@ static BlockAIOCB *blkverify_aio_readv(BlockDriverState *bs, qemu_iovec_init(&acb->raw_qiov, acb->qiov->niov); qemu_iovec_clone(&acb->raw_qiov, qiov, acb->buf); - bdrv_aio_readv(s->test_file->bs, sector_num, qiov, nb_sectors, + bdrv_aio_readv(s->test_file, sector_num, qiov, nb_sectors, blkverify_aio_cb, acb); - bdrv_aio_readv(bs->file->bs, sector_num, &acb->raw_qiov, nb_sectors, + bdrv_aio_readv(bs->file, sector_num, &acb->raw_qiov, nb_sectors, blkverify_aio_cb, acb); return &acb->common; } @@ -262,9 +262,9 @@ static BlockAIOCB *blkverify_aio_writev(BlockDriverState *bs, BlkverifyAIOCB *acb = blkverify_aio_get(bs, true, sector_num, qiov, nb_sectors, cb, opaque); - bdrv_aio_writev(s->test_file->bs, sector_num, qiov, nb_sectors, + bdrv_aio_writev(s->test_file, sector_num, qiov, nb_sectors, blkverify_aio_cb, acb); - bdrv_aio_writev(bs->file->bs, sector_num, qiov, nb_sectors, + bdrv_aio_writev(bs->file, sector_num, qiov, nb_sectors, blkverify_aio_cb, acb); return &acb->common; } diff --git a/block/block-backend.c b/block/block-backend.c index 34500e6080..a862f6577b 100644 --- a/block/block-backend.c +++ b/block/block-backend.c @@ -760,7 +760,7 @@ int coroutine_fn blk_co_preadv(BlockBackend *blk, int64_t offset, throttle_group_co_io_limits_intercept(blk, bytes, false); } - return bdrv_co_preadv(blk_bs(blk), offset, bytes, qiov, flags); + return bdrv_co_preadv(blk->root, offset, bytes, qiov, flags); } int coroutine_fn blk_co_pwritev(BlockBackend *blk, int64_t offset, @@ -785,7 +785,7 @@ int coroutine_fn blk_co_pwritev(BlockBackend *blk, int64_t offset, flags |= BDRV_REQ_FUA; } - return bdrv_co_pwritev(blk_bs(blk), offset, bytes, qiov, flags); + return bdrv_co_pwritev(blk->root, offset, bytes, qiov, flags); } typedef struct BlkRwCo { @@ -870,6 +870,11 @@ int blk_pwrite_zeroes(BlockBackend *blk, int64_t offset, flags | BDRV_REQ_ZERO_WRITE); } +int blk_make_zero(BlockBackend *blk, BdrvRequestFlags flags) +{ + return bdrv_make_zero(blk->root, flags); +} + static void error_callback_bh(void *opaque) { struct BlockBackendAIOCB *acb = opaque; @@ -1303,15 +1308,16 @@ int blk_get_flags(BlockBackend *blk) } } -int blk_get_max_transfer_length(BlockBackend *blk) +/* Returns the maximum transfer length, in bytes; guaranteed nonzero */ +uint32_t blk_get_max_transfer(BlockBackend *blk) { BlockDriverState *bs = blk_bs(blk); + uint32_t max = 0; if (bs) { - return bs->bl.max_transfer_length; - } else { - return 0; + max = bs->bl.max_transfer; } + return MIN_NON_ZERO(max, INT_MAX); } int blk_get_max_iov(BlockBackend *blk) diff --git a/block/bochs.c b/block/bochs.c index 6c8d0f3426..8c9652ebeb 100644 --- a/block/bochs.c +++ b/block/bochs.c @@ -104,10 +104,9 @@ static int bochs_open(BlockDriverState *bs, QDict *options, int flags, struct bochs_header bochs; int ret; - bs->read_only = 1; // no write support yet - bs->request_alignment = BDRV_SECTOR_SIZE; /* No sub-sector I/O supported */ + bs->read_only = true; /* no write support yet */ - ret = bdrv_pread(bs->file->bs, 0, &bochs, sizeof(bochs)); + ret = bdrv_pread(bs->file, 0, &bochs, sizeof(bochs)); if (ret < 0) { return ret; } @@ -141,7 +140,7 @@ static int bochs_open(BlockDriverState *bs, QDict *options, int flags, return -ENOMEM; } - ret = bdrv_pread(bs->file->bs, le32_to_cpu(bochs.header), s->catalog_bitmap, + ret = bdrv_pread(bs->file, le32_to_cpu(bochs.header), s->catalog_bitmap, s->catalog_size * 4); if (ret < 0) { goto fail; @@ -189,6 +188,11 @@ fail: return ret; } +static void bochs_refresh_limits(BlockDriverState *bs, Error **errp) +{ + bs->bl.request_alignment = BDRV_SECTOR_SIZE; /* No sub-sector I/O */ +} + static int64_t seek_to_sector(BlockDriverState *bs, int64_t sector_num) { BDRVBochsState *s = bs->opaque; @@ -210,7 +214,7 @@ static int64_t seek_to_sector(BlockDriverState *bs, int64_t sector_num) (s->extent_blocks + s->bitmap_blocks)); /* read in bitmap for current extent */ - ret = bdrv_pread(bs->file->bs, bitmap_offset + (extent_offset / 8), + ret = bdrv_pread(bs->file, bitmap_offset + (extent_offset / 8), &bitmap_entry, 1); if (ret < 0) { return ret; @@ -251,7 +255,7 @@ bochs_co_preadv(BlockDriverState *bs, uint64_t offset, uint64_t bytes, qemu_iovec_concat(&local_qiov, qiov, bytes_done, 512); if (block_offset > 0) { - ret = bdrv_co_preadv(bs->file->bs, block_offset, 512, + ret = bdrv_co_preadv(bs->file, block_offset, 512, &local_qiov, 0); if (ret < 0) { goto fail; @@ -283,6 +287,7 @@ static BlockDriver bdrv_bochs = { .instance_size = sizeof(BDRVBochsState), .bdrv_probe = bochs_probe, .bdrv_open = bochs_open, + .bdrv_refresh_limits = bochs_refresh_limits, .bdrv_co_preadv = bochs_co_preadv, .bdrv_close = bochs_close, }; diff --git a/block/cloop.c b/block/cloop.c index ea5a92b6d4..7b75f7ef7b 100644 --- a/block/cloop.c +++ b/block/cloop.c @@ -66,11 +66,10 @@ static int cloop_open(BlockDriverState *bs, QDict *options, int flags, uint32_t offsets_size, max_compressed_block_size = 1, i; int ret; - bs->read_only = 1; - bs->request_alignment = BDRV_SECTOR_SIZE; /* No sub-sector I/O supported */ + bs->read_only = true; /* read header */ - ret = bdrv_pread(bs->file->bs, 128, &s->block_size, 4); + ret = bdrv_pread(bs->file, 128, &s->block_size, 4); if (ret < 0) { return ret; } @@ -96,7 +95,7 @@ static int cloop_open(BlockDriverState *bs, QDict *options, int flags, return -EINVAL; } - ret = bdrv_pread(bs->file->bs, 128 + 4, &s->n_blocks, 4); + ret = bdrv_pread(bs->file, 128 + 4, &s->n_blocks, 4); if (ret < 0) { return ret; } @@ -127,7 +126,7 @@ static int cloop_open(BlockDriverState *bs, QDict *options, int flags, return -ENOMEM; } - ret = bdrv_pread(bs->file->bs, 128 + 4 + 4, s->offsets, offsets_size); + ret = bdrv_pread(bs->file, 128 + 4 + 4, s->offsets, offsets_size); if (ret < 0) { goto fail; } @@ -199,6 +198,11 @@ fail: return ret; } +static void cloop_refresh_limits(BlockDriverState *bs, Error **errp) +{ + bs->bl.request_alignment = BDRV_SECTOR_SIZE; /* No sub-sector I/O */ +} + static inline int cloop_read_block(BlockDriverState *bs, int block_num) { BDRVCloopState *s = bs->opaque; @@ -207,7 +211,7 @@ static inline int cloop_read_block(BlockDriverState *bs, int block_num) int ret; uint32_t bytes = s->offsets[block_num + 1] - s->offsets[block_num]; - ret = bdrv_pread(bs->file->bs, s->offsets[block_num], + ret = bdrv_pread(bs->file, s->offsets[block_num], s->compressed_block, bytes); if (ret != bytes) { return -1; @@ -280,6 +284,7 @@ static BlockDriver bdrv_cloop = { .instance_size = sizeof(BDRVCloopState), .bdrv_probe = cloop_probe, .bdrv_open = cloop_open, + .bdrv_refresh_limits = cloop_refresh_limits, .bdrv_co_preadv = cloop_co_preadv, .bdrv_close = cloop_close, }; diff --git a/block/commit.c b/block/commit.c index 444333ba65..379efb7c92 100644 --- a/block/commit.c +++ b/block/commit.c @@ -282,3 +282,124 @@ void commit_start(BlockDriverState *bs, BlockDriverState *base, trace_commit_start(bs, base, top, s, s->common.co, opaque); qemu_coroutine_enter(s->common.co, s); } + + +#define COMMIT_BUF_SECTORS 2048 + +/* commit COW file into the raw image */ +int bdrv_commit(BlockDriverState *bs) +{ + BlockBackend *src, *backing; + BlockDriver *drv = bs->drv; + int64_t sector, total_sectors, length, backing_length; + int n, ro, open_flags; + int ret = 0; + uint8_t *buf = NULL; + + if (!drv) + return -ENOMEDIUM; + + if (!bs->backing) { + return -ENOTSUP; + } + + if (bdrv_op_is_blocked(bs, BLOCK_OP_TYPE_COMMIT_SOURCE, NULL) || + bdrv_op_is_blocked(bs->backing->bs, BLOCK_OP_TYPE_COMMIT_TARGET, NULL)) { + return -EBUSY; + } + + ro = bs->backing->bs->read_only; + open_flags = bs->backing->bs->open_flags; + + if (ro) { + if (bdrv_reopen(bs->backing->bs, open_flags | BDRV_O_RDWR, NULL)) { + return -EACCES; + } + } + + src = blk_new(); + blk_insert_bs(src, bs); + + backing = blk_new(); + blk_insert_bs(backing, bs->backing->bs); + + length = blk_getlength(src); + if (length < 0) { + ret = length; + goto ro_cleanup; + } + + backing_length = blk_getlength(backing); + if (backing_length < 0) { + ret = backing_length; + goto ro_cleanup; + } + + /* If our top snapshot is larger than the backing file image, + * grow the backing file image if possible. If not possible, + * we must return an error */ + if (length > backing_length) { + ret = blk_truncate(backing, length); + if (ret < 0) { + goto ro_cleanup; + } + } + + total_sectors = length >> BDRV_SECTOR_BITS; + + /* blk_try_blockalign() for src will choose an alignment that works for + * backing as well, so no need to compare the alignment manually. */ + buf = blk_try_blockalign(src, COMMIT_BUF_SECTORS * BDRV_SECTOR_SIZE); + if (buf == NULL) { + ret = -ENOMEM; + goto ro_cleanup; + } + + for (sector = 0; sector < total_sectors; sector += n) { + ret = bdrv_is_allocated(bs, sector, COMMIT_BUF_SECTORS, &n); + if (ret < 0) { + goto ro_cleanup; + } + if (ret) { + ret = blk_pread(src, sector * BDRV_SECTOR_SIZE, buf, + n * BDRV_SECTOR_SIZE); + if (ret < 0) { + goto ro_cleanup; + } + + ret = blk_pwrite(backing, sector * BDRV_SECTOR_SIZE, buf, + n * BDRV_SECTOR_SIZE, 0); + if (ret < 0) { + goto ro_cleanup; + } + } + } + + if (drv->bdrv_make_empty) { + ret = drv->bdrv_make_empty(bs); + if (ret < 0) { + goto ro_cleanup; + } + blk_flush(src); + } + + /* + * Make sure all data we wrote to the backing device is actually + * stable on disk. + */ + blk_flush(backing); + + ret = 0; +ro_cleanup: + qemu_vfree(buf); + + blk_unref(src); + blk_unref(backing); + + if (ro) { + /* ignoring error return here */ + bdrv_reopen(bs->backing->bs, open_flags & ~BDRV_O_RDWR, NULL); + } + + return ret; +} diff --git a/block/crypto.c b/block/crypto.c index 758e14e032..7eaa0571b5 100644 --- a/block/crypto.c +++ b/block/crypto.c @@ -64,7 +64,7 @@ static ssize_t block_crypto_read_func(QCryptoBlock *block, BlockDriverState *bs = opaque; ssize_t ret; - ret = bdrv_pread(bs->file->bs, offset, buf, buflen); + ret = bdrv_pread(bs->file, offset, buf, buflen); if (ret < 0) { error_setg_errno(errp, -ret, "Could not read encryption header"); return ret; @@ -193,17 +193,16 @@ block_crypto_open_opts_init(QCryptoBlockFormat format, QemuOpts *opts, Error **errp) { - OptsVisitor *ov; + Visitor *v; QCryptoBlockOpenOptions *ret = NULL; Error *local_err = NULL; ret = g_new0(QCryptoBlockOpenOptions, 1); ret->format = format; - ov = opts_visitor_new(opts); + v = opts_visitor_new(opts); - visit_start_struct(opts_get_visitor(ov), - NULL, NULL, 0, &local_err); + visit_start_struct(v, NULL, NULL, 0, &local_err); if (local_err) { goto out; } @@ -211,7 +210,7 @@ block_crypto_open_opts_init(QCryptoBlockFormat format, switch (format) { case Q_CRYPTO_BLOCK_FORMAT_LUKS: visit_type_QCryptoBlockOptionsLUKS_members( - opts_get_visitor(ov), &ret->u.luks, &local_err); + v, &ret->u.luks, &local_err); break; default: @@ -219,10 +218,10 @@ block_crypto_open_opts_init(QCryptoBlockFormat format, break; } if (!local_err) { - visit_check_struct(opts_get_visitor(ov), &local_err); + visit_check_struct(v, &local_err); } - visit_end_struct(opts_get_visitor(ov)); + visit_end_struct(v, NULL); out: if (local_err) { @@ -230,7 +229,7 @@ block_crypto_open_opts_init(QCryptoBlockFormat format, qapi_free_QCryptoBlockOpenOptions(ret); ret = NULL; } - opts_visitor_cleanup(ov); + visit_free(v); return ret; } @@ -240,17 +239,16 @@ block_crypto_create_opts_init(QCryptoBlockFormat format, QemuOpts *opts, Error **errp) { - OptsVisitor *ov; + Visitor *v; QCryptoBlockCreateOptions *ret = NULL; Error *local_err = NULL; ret = g_new0(QCryptoBlockCreateOptions, 1); ret->format = format; - ov = opts_visitor_new(opts); + v = opts_visitor_new(opts); - visit_start_struct(opts_get_visitor(ov), - NULL, NULL, 0, &local_err); + visit_start_struct(v, NULL, NULL, 0, &local_err); if (local_err) { goto out; } @@ -258,7 +256,7 @@ block_crypto_create_opts_init(QCryptoBlockFormat format, switch (format) { case Q_CRYPTO_BLOCK_FORMAT_LUKS: visit_type_QCryptoBlockCreateOptionsLUKS_members( - opts_get_visitor(ov), &ret->u.luks, &local_err); + v, &ret->u.luks, &local_err); break; default: @@ -266,10 +264,10 @@ block_crypto_create_opts_init(QCryptoBlockFormat format, break; } if (!local_err) { - visit_check_struct(opts_get_visitor(ov), &local_err); + visit_check_struct(v, &local_err); } - visit_end_struct(opts_get_visitor(ov)); + visit_end_struct(v, NULL); out: if (local_err) { @@ -277,7 +275,7 @@ block_crypto_create_opts_init(QCryptoBlockFormat format, qapi_free_QCryptoBlockCreateOptions(ret); ret = NULL; } - opts_visitor_cleanup(ov); + visit_free(v); return ret; } @@ -322,8 +320,8 @@ static int block_crypto_open_generic(QCryptoBlockFormat format, goto cleanup; } - bs->encrypted = 1; - bs->valid_key = 1; + bs->encrypted = true; + bs->valid_key = true; ret = 0; cleanup: @@ -428,7 +426,7 @@ block_crypto_co_readv(BlockDriverState *bs, int64_t sector_num, qemu_iovec_reset(&hd_qiov); qemu_iovec_add(&hd_qiov, cipher_data, cur_nr_sectors * 512); - ret = bdrv_co_readv(bs->file->bs, + ret = bdrv_co_readv(bs->file, payload_offset + sector_num, cur_nr_sectors, &hd_qiov); if (ret < 0) { @@ -507,7 +505,7 @@ block_crypto_co_writev(BlockDriverState *bs, int64_t sector_num, qemu_iovec_reset(&hd_qiov); qemu_iovec_add(&hd_qiov, cipher_data, cur_nr_sectors * 512); - ret = bdrv_co_writev(bs->file->bs, + ret = bdrv_co_writev(bs->file, payload_offset + sector_num, cur_nr_sectors, &hd_qiov); if (ret < 0) { diff --git a/block/dmg.c b/block/dmg.c index 06eb5138f3..b0ed89baa7 100644 --- a/block/dmg.c +++ b/block/dmg.c @@ -86,7 +86,7 @@ static int read_uint64(BlockDriverState *bs, int64_t offset, uint64_t *result) uint64_t buffer; int ret; - ret = bdrv_pread(bs->file->bs, offset, &buffer, 8); + ret = bdrv_pread(bs->file, offset, &buffer, 8); if (ret < 0) { return ret; } @@ -100,7 +100,7 @@ static int read_uint32(BlockDriverState *bs, int64_t offset, uint32_t *result) uint32_t buffer; int ret; - ret = bdrv_pread(bs->file->bs, offset, &buffer, 4); + ret = bdrv_pread(bs->file, offset, &buffer, 4); if (ret < 0) { return ret; } @@ -153,8 +153,9 @@ static void update_max_chunk_size(BDRVDMGState *s, uint32_t chunk, } } -static int64_t dmg_find_koly_offset(BlockDriverState *file_bs, Error **errp) +static int64_t dmg_find_koly_offset(BdrvChild *file, Error **errp) { + BlockDriverState *file_bs = file->bs; int64_t length; int64_t offset = 0; uint8_t buffer[515]; @@ -178,7 +179,7 @@ static int64_t dmg_find_koly_offset(BlockDriverState *file_bs, Error **errp) offset = length - 511 - 512; } length = length < 515 ? length : 515; - ret = bdrv_pread(file_bs, offset, buffer, length); + ret = bdrv_pread(file, offset, buffer, length); if (ret < 0) { error_setg_errno(errp, -ret, "Failed while reading UDIF trailer"); return ret; @@ -355,7 +356,7 @@ static int dmg_read_resource_fork(BlockDriverState *bs, DmgHeaderState *ds, offset += 4; buffer = g_realloc(buffer, count); - ret = bdrv_pread(bs->file->bs, offset, buffer, count); + ret = bdrv_pread(bs->file, offset, buffer, count); if (ret < 0) { goto fail; } @@ -392,7 +393,7 @@ static int dmg_read_plist_xml(BlockDriverState *bs, DmgHeaderState *ds, buffer = g_malloc(info_length + 1); buffer[info_length] = '\0'; - ret = bdrv_pread(bs->file->bs, info_begin, buffer, info_length); + ret = bdrv_pread(bs->file, info_begin, buffer, info_length); if (ret != info_length) { ret = -EINVAL; goto fail; @@ -438,8 +439,7 @@ static int dmg_open(BlockDriverState *bs, QDict *options, int flags, int64_t offset; int ret; - bs->read_only = 1; - bs->request_alignment = BDRV_SECTOR_SIZE; /* No sub-sector I/O supported */ + bs->read_only = true; s->n_chunks = 0; s->offsets = s->lengths = s->sectors = s->sectorcounts = NULL; @@ -449,7 +449,7 @@ static int dmg_open(BlockDriverState *bs, QDict *options, int flags, ds.max_sectors_per_chunk = 1; /* locate the UDIF trailer */ - offset = dmg_find_koly_offset(bs->file->bs, errp); + offset = dmg_find_koly_offset(bs->file, errp); if (offset < 0) { ret = offset; goto fail; @@ -547,6 +547,11 @@ fail: return ret; } +static void dmg_refresh_limits(BlockDriverState *bs, Error **errp) +{ + bs->bl.request_alignment = BDRV_SECTOR_SIZE; /* No sub-sector I/O */ +} + static inline int is_sector_in_chunk(BDRVDMGState* s, uint32_t chunk_num, uint64_t sector_num) { @@ -595,7 +600,7 @@ static inline int dmg_read_chunk(BlockDriverState *bs, uint64_t sector_num) case 0x80000005: { /* zlib compressed */ /* we need to buffer, because only the chunk as whole can be * inflated. */ - ret = bdrv_pread(bs->file->bs, s->offsets[chunk], + ret = bdrv_pread(bs->file, s->offsets[chunk], s->compressed_chunk, s->lengths[chunk]); if (ret != s->lengths[chunk]) { return -1; @@ -619,7 +624,7 @@ static inline int dmg_read_chunk(BlockDriverState *bs, uint64_t sector_num) case 0x80000006: /* bzip2 compressed */ /* we need to buffer, because only the chunk as whole can be * inflated. */ - ret = bdrv_pread(bs->file->bs, s->offsets[chunk], + ret = bdrv_pread(bs->file, s->offsets[chunk], s->compressed_chunk, s->lengths[chunk]); if (ret != s->lengths[chunk]) { return -1; @@ -644,7 +649,7 @@ static inline int dmg_read_chunk(BlockDriverState *bs, uint64_t sector_num) break; #endif /* CONFIG_BZIP2 */ case 1: /* copy */ - ret = bdrv_pread(bs->file->bs, s->offsets[chunk], + ret = bdrv_pread(bs->file, s->offsets[chunk], s->uncompressed_chunk, s->lengths[chunk]); if (ret != s->lengths[chunk]) { return -1; @@ -720,6 +725,7 @@ static BlockDriver bdrv_dmg = { .instance_size = sizeof(BDRVDMGState), .bdrv_probe = dmg_probe, .bdrv_open = dmg_open, + .bdrv_refresh_limits = dmg_refresh_limits, .bdrv_co_preadv = dmg_co_preadv, .bdrv_close = dmg_close, }; diff --git a/block/io.c b/block/io.c index 7cf3645ade..708690898f 100644 --- a/block/io.c +++ b/block/io.c @@ -33,7 +33,7 @@ #define NOT_DONE 0x7fffffff /* used while emulated sync operation in progress */ -static BlockAIOCB *bdrv_co_aio_rw_vector(BlockDriverState *bs, +static BlockAIOCB *bdrv_co_aio_rw_vector(BdrvChild *child, int64_t sector_num, QEMUIOVector *qiov, int nb_sectors, @@ -67,6 +67,17 @@ static void bdrv_parent_drained_end(BlockDriverState *bs) } } +static void bdrv_merge_limits(BlockLimits *dst, const BlockLimits *src) +{ + dst->opt_transfer = MAX(dst->opt_transfer, src->opt_transfer); + dst->max_transfer = MIN_NON_ZERO(dst->max_transfer, src->max_transfer); + dst->opt_mem_alignment = MAX(dst->opt_mem_alignment, + src->opt_mem_alignment); + dst->min_mem_alignment = MAX(dst->min_mem_alignment, + src->min_mem_alignment); + dst->max_iov = MIN_NON_ZERO(dst->max_iov, src->max_iov); +} + void bdrv_refresh_limits(BlockDriverState *bs, Error **errp) { BlockDriver *drv = bs->drv; @@ -78,6 +89,9 @@ void bdrv_refresh_limits(BlockDriverState *bs, Error **errp) return; } + /* Default alignment based on whether driver has byte interface */ + bs->bl.request_alignment = drv->bdrv_co_preadv ? 1 : 512; + /* Take some limits from the children as a default */ if (bs->file) { bdrv_refresh_limits(bs->file->bs, &local_err); @@ -85,11 +99,7 @@ void bdrv_refresh_limits(BlockDriverState *bs, Error **errp) error_propagate(errp, local_err); return; } - bs->bl.opt_transfer_length = bs->file->bs->bl.opt_transfer_length; - bs->bl.max_transfer_length = bs->file->bs->bl.max_transfer_length; - bs->bl.min_mem_alignment = bs->file->bs->bl.min_mem_alignment; - bs->bl.opt_mem_alignment = bs->file->bs->bl.opt_mem_alignment; - bs->bl.max_iov = bs->file->bs->bl.max_iov; + bdrv_merge_limits(&bs->bl, &bs->file->bs->bl); } else { bs->bl.min_mem_alignment = 512; bs->bl.opt_mem_alignment = getpagesize(); @@ -104,21 +114,7 @@ void bdrv_refresh_limits(BlockDriverState *bs, Error **errp) error_propagate(errp, local_err); return; } - bs->bl.opt_transfer_length = - MAX(bs->bl.opt_transfer_length, - bs->backing->bs->bl.opt_transfer_length); - bs->bl.max_transfer_length = - MIN_NON_ZERO(bs->bl.max_transfer_length, - bs->backing->bs->bl.max_transfer_length); - bs->bl.opt_mem_alignment = - MAX(bs->bl.opt_mem_alignment, - bs->backing->bs->bl.opt_mem_alignment); - bs->bl.min_mem_alignment = - MAX(bs->bl.min_mem_alignment, - bs->backing->bs->bl.min_mem_alignment); - bs->bl.max_iov = - MIN(bs->bl.max_iov, - bs->backing->bs->bl.max_iov); + bdrv_merge_limits(&bs->bl, &bs->backing->bs->bl); } /* Then let the driver override it */ @@ -463,7 +459,7 @@ static int bdrv_get_cluster_size(BlockDriverState *bs) ret = bdrv_get_info(bs, &bdi); if (ret < 0 || bdi.cluster_size == 0) { - return bs->request_alignment; + return bs->bl.request_alignment; } else { return bdi.cluster_size; } @@ -557,7 +553,7 @@ static int bdrv_check_request(BlockDriverState *bs, int64_t sector_num, } typedef struct RwCo { - BlockDriverState *bs; + BdrvChild *child; int64_t offset; QEMUIOVector *qiov; bool is_write; @@ -570,11 +566,11 @@ static void coroutine_fn bdrv_rw_co_entry(void *opaque) RwCo *rwco = opaque; if (!rwco->is_write) { - rwco->ret = bdrv_co_preadv(rwco->bs, rwco->offset, + rwco->ret = bdrv_co_preadv(rwco->child, rwco->offset, rwco->qiov->size, rwco->qiov, rwco->flags); } else { - rwco->ret = bdrv_co_pwritev(rwco->bs, rwco->offset, + rwco->ret = bdrv_co_pwritev(rwco->child, rwco->offset, rwco->qiov->size, rwco->qiov, rwco->flags); } @@ -583,13 +579,13 @@ static void coroutine_fn bdrv_rw_co_entry(void *opaque) /* * Process a vectored synchronous request using coroutines */ -static int bdrv_prwv_co(BlockDriverState *bs, int64_t offset, +static int bdrv_prwv_co(BdrvChild *child, int64_t offset, QEMUIOVector *qiov, bool is_write, BdrvRequestFlags flags) { Coroutine *co; RwCo rwco = { - .bs = bs, + .child = child, .offset = offset, .qiov = qiov, .is_write = is_write, @@ -601,7 +597,7 @@ static int bdrv_prwv_co(BlockDriverState *bs, int64_t offset, /* Fast-path if already in coroutine context */ bdrv_rw_co_entry(&rwco); } else { - AioContext *aio_context = bdrv_get_aio_context(bs); + AioContext *aio_context = bdrv_get_aio_context(child->bs); co = qemu_coroutine_create(bdrv_rw_co_entry); qemu_coroutine_enter(co, &rwco); @@ -615,7 +611,7 @@ static int bdrv_prwv_co(BlockDriverState *bs, int64_t offset, /* * Process a synchronous request using coroutines */ -static int bdrv_rw_co(BlockDriverState *bs, int64_t sector_num, uint8_t *buf, +static int bdrv_rw_co(BdrvChild *child, int64_t sector_num, uint8_t *buf, int nb_sectors, bool is_write, BdrvRequestFlags flags) { QEMUIOVector qiov; @@ -629,15 +625,15 @@ static int bdrv_rw_co(BlockDriverState *bs, int64_t sector_num, uint8_t *buf, } qemu_iovec_init_external(&qiov, &iov, 1); - return bdrv_prwv_co(bs, sector_num << BDRV_SECTOR_BITS, + return bdrv_prwv_co(child, sector_num << BDRV_SECTOR_BITS, &qiov, is_write, flags); } /* return < 0 if error. See bdrv_write() for the return codes */ -int bdrv_read(BlockDriverState *bs, int64_t sector_num, +int bdrv_read(BdrvChild *child, int64_t sector_num, uint8_t *buf, int nb_sectors) { - return bdrv_rw_co(bs, sector_num, buf, nb_sectors, false, 0); + return bdrv_rw_co(child, sector_num, buf, nb_sectors, false, 0); } /* Return < 0 if error. Important errors are: @@ -646,13 +642,13 @@ int bdrv_read(BlockDriverState *bs, int64_t sector_num, -EINVAL Invalid sector number or nb_sectors -EACCES Trying to write a read-only device */ -int bdrv_write(BlockDriverState *bs, int64_t sector_num, +int bdrv_write(BdrvChild *child, int64_t sector_num, const uint8_t *buf, int nb_sectors) { - return bdrv_rw_co(bs, sector_num, (uint8_t *)buf, nb_sectors, true, 0); + return bdrv_rw_co(child, sector_num, (uint8_t *)buf, nb_sectors, true, 0); } -int bdrv_pwrite_zeroes(BlockDriverState *bs, int64_t offset, +int bdrv_pwrite_zeroes(BdrvChild *child, int64_t offset, int count, BdrvRequestFlags flags) { QEMUIOVector qiov; @@ -662,7 +658,7 @@ int bdrv_pwrite_zeroes(BlockDriverState *bs, int64_t offset, }; qemu_iovec_init_external(&qiov, &iov, 1); - return bdrv_prwv_co(bs, offset, &qiov, true, + return bdrv_prwv_co(child, offset, &qiov, true, BDRV_REQ_ZERO_WRITE | flags); } @@ -675,9 +671,10 @@ int bdrv_pwrite_zeroes(BlockDriverState *bs, int64_t offset, * * Returns < 0 on error, 0 on success. For error codes see bdrv_write(). */ -int bdrv_make_zero(BlockDriverState *bs, BdrvRequestFlags flags) +int bdrv_make_zero(BdrvChild *child, BdrvRequestFlags flags) { int64_t target_sectors, ret, nb_sectors, sector_num = 0; + BlockDriverState *bs = child->bs; BlockDriverState *file; int n; @@ -701,7 +698,7 @@ int bdrv_make_zero(BlockDriverState *bs, BdrvRequestFlags flags) sector_num += n; continue; } - ret = bdrv_pwrite_zeroes(bs, sector_num << BDRV_SECTOR_BITS, + ret = bdrv_pwrite_zeroes(child, sector_num << BDRV_SECTOR_BITS, n << BDRV_SECTOR_BITS, flags); if (ret < 0) { error_report("error writing zeroes at sector %" PRId64 ": %s", @@ -712,11 +709,11 @@ int bdrv_make_zero(BlockDriverState *bs, BdrvRequestFlags flags) } } -int bdrv_preadv(BlockDriverState *bs, int64_t offset, QEMUIOVector *qiov) +int bdrv_preadv(BdrvChild *child, int64_t offset, QEMUIOVector *qiov) { int ret; - ret = bdrv_prwv_co(bs, offset, qiov, false, 0); + ret = bdrv_prwv_co(child, offset, qiov, false, 0); if (ret < 0) { return ret; } @@ -724,7 +721,7 @@ int bdrv_preadv(BlockDriverState *bs, int64_t offset, QEMUIOVector *qiov) return qiov->size; } -int bdrv_pread(BlockDriverState *bs, int64_t offset, void *buf, int bytes) +int bdrv_pread(BdrvChild *child, int64_t offset, void *buf, int bytes) { QEMUIOVector qiov; struct iovec iov = { @@ -737,14 +734,14 @@ int bdrv_pread(BlockDriverState *bs, int64_t offset, void *buf, int bytes) } qemu_iovec_init_external(&qiov, &iov, 1); - return bdrv_preadv(bs, offset, &qiov); + return bdrv_preadv(child, offset, &qiov); } -int bdrv_pwritev(BlockDriverState *bs, int64_t offset, QEMUIOVector *qiov) +int bdrv_pwritev(BdrvChild *child, int64_t offset, QEMUIOVector *qiov) { int ret; - ret = bdrv_prwv_co(bs, offset, qiov, true, 0); + ret = bdrv_prwv_co(child, offset, qiov, true, 0); if (ret < 0) { return ret; } @@ -752,8 +749,7 @@ int bdrv_pwritev(BlockDriverState *bs, int64_t offset, QEMUIOVector *qiov) return qiov->size; } -int bdrv_pwrite(BlockDriverState *bs, int64_t offset, - const void *buf, int bytes) +int bdrv_pwrite(BdrvChild *child, int64_t offset, const void *buf, int bytes) { QEMUIOVector qiov; struct iovec iov = { @@ -766,7 +762,7 @@ int bdrv_pwrite(BlockDriverState *bs, int64_t offset, } qemu_iovec_init_external(&qiov, &iov, 1); - return bdrv_pwritev(bs, offset, &qiov); + return bdrv_pwritev(child, offset, &qiov); } /* @@ -775,17 +771,17 @@ int bdrv_pwrite(BlockDriverState *bs, int64_t offset, * * Returns 0 on success, -errno in error cases. */ -int bdrv_pwrite_sync(BlockDriverState *bs, int64_t offset, - const void *buf, int count) +int bdrv_pwrite_sync(BdrvChild *child, int64_t offset, + const void *buf, int count) { int ret; - ret = bdrv_pwrite(bs, offset, buf, count); + ret = bdrv_pwrite(child, offset, buf, count); if (ret < 0) { return ret; } - ret = bdrv_flush(bs); + ret = bdrv_flush(child->bs); if (ret < 0) { return ret; } @@ -945,6 +941,9 @@ static int coroutine_fn bdrv_co_do_copy_on_readv(BlockDriverState *bs, if (drv->bdrv_co_pwrite_zeroes && buffer_is_zero(bounce_buffer, iov.iov_len)) { + /* FIXME: Should we (perhaps conditionally) be setting + * BDRV_REQ_MAY_UNMAP, if it will allow for a sparser copy + * that still correctly reads as zero? */ ret = bdrv_co_do_pwrite_zeroes(bs, cluster_offset, cluster_bytes, 0); } else { /* This does not change the data on the disk, it is not necessary @@ -987,7 +986,12 @@ static int coroutine_fn bdrv_aligned_preadv(BlockDriverState *bs, assert((bytes & (align - 1)) == 0); assert(!qiov || bytes == qiov->size); assert((bs->open_flags & BDRV_O_NO_IO) == 0); - assert(!(flags & ~BDRV_REQ_MASK)); + + /* TODO: We would need a per-BDS .supported_read_flags and + * potential fallback support, if we ever implement any read flags + * to pass through to drivers. For now, there aren't any + * passthrough flags. */ + assert(!(flags & ~(BDRV_REQ_NO_SERIALISING | BDRV_REQ_COPY_ON_READ))); /* Handle Copy on Read and associated serialisation */ if (flags & BDRV_REQ_COPY_ON_READ) { @@ -1028,7 +1032,7 @@ static int coroutine_fn bdrv_aligned_preadv(BlockDriverState *bs, } max_bytes = ROUND_UP(MAX(0, total_bytes - offset), align); - if (bytes < max_bytes) { + if (bytes <= max_bytes) { ret = bdrv_driver_preadv(bs, offset, bytes, qiov, 0); } else if (max_bytes > 0) { QEMUIOVector local_qiov; @@ -1057,14 +1061,15 @@ out: /* * Handle a read request in coroutine context */ -int coroutine_fn bdrv_co_preadv(BlockDriverState *bs, +int coroutine_fn bdrv_co_preadv(BdrvChild *child, int64_t offset, unsigned int bytes, QEMUIOVector *qiov, BdrvRequestFlags flags) { + BlockDriverState *bs = child->bs; BlockDriver *drv = bs->drv; BdrvTrackedRequest req; - uint64_t align = bs->request_alignment; + uint64_t align = bs->bl.request_alignment; uint8_t *head_buf = NULL; uint8_t *tail_buf = NULL; QEMUIOVector local_qiov; @@ -1125,7 +1130,7 @@ int coroutine_fn bdrv_co_preadv(BlockDriverState *bs, return ret; } -static int coroutine_fn bdrv_co_do_readv(BlockDriverState *bs, +static int coroutine_fn bdrv_co_do_readv(BdrvChild *child, int64_t sector_num, int nb_sectors, QEMUIOVector *qiov, BdrvRequestFlags flags) { @@ -1133,19 +1138,20 @@ static int coroutine_fn bdrv_co_do_readv(BlockDriverState *bs, return -EINVAL; } - return bdrv_co_preadv(bs, sector_num << BDRV_SECTOR_BITS, + return bdrv_co_preadv(child, sector_num << BDRV_SECTOR_BITS, nb_sectors << BDRV_SECTOR_BITS, qiov, flags); } -int coroutine_fn bdrv_co_readv(BlockDriverState *bs, int64_t sector_num, - int nb_sectors, QEMUIOVector *qiov) +int coroutine_fn bdrv_co_readv(BdrvChild *child, int64_t sector_num, + int nb_sectors, QEMUIOVector *qiov) { - trace_bdrv_co_readv(bs, sector_num, nb_sectors); + trace_bdrv_co_readv(child->bs, sector_num, nb_sectors); - return bdrv_co_do_readv(bs, sector_num, nb_sectors, qiov, 0); + return bdrv_co_do_readv(child, sector_num, nb_sectors, qiov, 0); } -#define MAX_WRITE_ZEROES_BOUNCE_BUFFER 32768 +/* Maximum buffer for write zeroes fallback, in bytes */ +#define MAX_WRITE_ZEROES_BOUNCE_BUFFER (32768 << BDRV_SECTOR_BITS) static int coroutine_fn bdrv_co_do_pwrite_zeroes(BlockDriverState *bs, int64_t offset, int count, BdrvRequestFlags flags) @@ -1159,8 +1165,8 @@ static int coroutine_fn bdrv_co_do_pwrite_zeroes(BlockDriverState *bs, int tail = 0; int max_write_zeroes = MIN_NON_ZERO(bs->bl.max_pwrite_zeroes, INT_MAX); - int alignment = MAX(bs->bl.pwrite_zeroes_alignment ?: 1, - bs->request_alignment); + int alignment = MAX(bs->bl.pwrite_zeroes_alignment, + bs->bl.request_alignment); assert(is_power_of_2(alignment)); head = offset & (alignment - 1); @@ -1203,7 +1209,7 @@ static int coroutine_fn bdrv_co_do_pwrite_zeroes(BlockDriverState *bs, if (ret == -ENOTSUP) { /* Fall back to bounce buffer if write zeroes is unsupported */ - int max_xfer_len = MIN_NON_ZERO(bs->bl.max_transfer_length, + int max_transfer = MIN_NON_ZERO(bs->bl.max_transfer, MAX_WRITE_ZEROES_BOUNCE_BUFFER); BdrvRequestFlags write_flags = flags & ~BDRV_REQ_ZERO_WRITE; @@ -1214,7 +1220,7 @@ static int coroutine_fn bdrv_co_do_pwrite_zeroes(BlockDriverState *bs, write_flags &= ~BDRV_REQ_FUA; need_flush = true; } - num = MIN(num, max_xfer_len << BDRV_SECTOR_BITS); + num = MIN(num, max_transfer); iov.iov_len = num; if (iov.iov_base == NULL) { iov.iov_base = qemu_try_blockalign(bs, num); @@ -1231,7 +1237,7 @@ static int coroutine_fn bdrv_co_do_pwrite_zeroes(BlockDriverState *bs, /* Keep bounce buffer around if it is big enough for all * all future requests. */ - if (num < max_xfer_len << BDRV_SECTOR_BITS) { + if (num < max_transfer) { qemu_vfree(iov.iov_base); iov.iov_base = NULL; } @@ -1254,7 +1260,7 @@ fail: */ static int coroutine_fn bdrv_aligned_pwritev(BlockDriverState *bs, BdrvTrackedRequest *req, int64_t offset, unsigned int bytes, - QEMUIOVector *qiov, int flags) + int64_t align, QEMUIOVector *qiov, int flags) { BlockDriver *drv = bs->drv; bool waited; @@ -1263,6 +1269,9 @@ static int coroutine_fn bdrv_aligned_pwritev(BlockDriverState *bs, int64_t start_sector = offset >> BDRV_SECTOR_BITS; int64_t end_sector = DIV_ROUND_UP(offset + bytes, BDRV_SECTOR_SIZE); + assert(is_power_of_2(align)); + assert((offset & (align - 1)) == 0); + assert((bytes & (align - 1)) == 0); assert(!qiov || bytes == qiov->size); assert((bs->open_flags & BDRV_O_NO_IO) == 0); assert(!(flags & ~BDRV_REQ_MASK)); @@ -1316,7 +1325,7 @@ static int coroutine_fn bdrv_co_do_zero_pwritev(BlockDriverState *bs, uint8_t *buf = NULL; QEMUIOVector local_qiov; struct iovec iov; - uint64_t align = bs->request_alignment; + uint64_t align = bs->bl.request_alignment; unsigned int head_padding_bytes, tail_padding_bytes; int ret = 0; @@ -1349,7 +1358,7 @@ static int coroutine_fn bdrv_co_do_zero_pwritev(BlockDriverState *bs, memset(buf + head_padding_bytes, 0, zero_bytes); ret = bdrv_aligned_pwritev(bs, req, offset & ~(align - 1), align, - &local_qiov, + align, &local_qiov, flags & ~BDRV_REQ_ZERO_WRITE); if (ret < 0) { goto fail; @@ -1362,7 +1371,7 @@ static int coroutine_fn bdrv_co_do_zero_pwritev(BlockDriverState *bs, if (bytes >= align) { /* Write the aligned part in the middle. */ uint64_t aligned_bytes = bytes & ~(align - 1); - ret = bdrv_aligned_pwritev(bs, req, offset, aligned_bytes, + ret = bdrv_aligned_pwritev(bs, req, offset, aligned_bytes, align, NULL, flags); if (ret < 0) { goto fail; @@ -1386,7 +1395,7 @@ static int coroutine_fn bdrv_co_do_zero_pwritev(BlockDriverState *bs, bdrv_debug_event(bs, BLKDBG_PWRITEV_RMW_AFTER_TAIL); memset(buf, 0, bytes); - ret = bdrv_aligned_pwritev(bs, req, offset, align, + ret = bdrv_aligned_pwritev(bs, req, offset, align, align, &local_qiov, flags & ~BDRV_REQ_ZERO_WRITE); } fail: @@ -1398,12 +1407,13 @@ fail: /* * Handle a write request in coroutine context */ -int coroutine_fn bdrv_co_pwritev(BlockDriverState *bs, +int coroutine_fn bdrv_co_pwritev(BdrvChild *child, int64_t offset, unsigned int bytes, QEMUIOVector *qiov, BdrvRequestFlags flags) { + BlockDriverState *bs = child->bs; BdrvTrackedRequest req; - uint64_t align = bs->request_alignment; + uint64_t align = bs->bl.request_alignment; uint8_t *head_buf = NULL; uint8_t *tail_buf = NULL; QEMUIOVector local_qiov; @@ -1511,7 +1521,7 @@ int coroutine_fn bdrv_co_pwritev(BlockDriverState *bs, bytes = ROUND_UP(bytes, align); } - ret = bdrv_aligned_pwritev(bs, &req, offset, bytes, + ret = bdrv_aligned_pwritev(bs, &req, offset, bytes, align, use_local_qiov ? &local_qiov : qiov, flags); @@ -1527,7 +1537,7 @@ out: return ret; } -static int coroutine_fn bdrv_co_do_writev(BlockDriverState *bs, +static int coroutine_fn bdrv_co_do_writev(BdrvChild *child, int64_t sector_num, int nb_sectors, QEMUIOVector *qiov, BdrvRequestFlags flags) { @@ -1535,29 +1545,28 @@ static int coroutine_fn bdrv_co_do_writev(BlockDriverState *bs, return -EINVAL; } - return bdrv_co_pwritev(bs, sector_num << BDRV_SECTOR_BITS, + return bdrv_co_pwritev(child, sector_num << BDRV_SECTOR_BITS, nb_sectors << BDRV_SECTOR_BITS, qiov, flags); } -int coroutine_fn bdrv_co_writev(BlockDriverState *bs, int64_t sector_num, +int coroutine_fn bdrv_co_writev(BdrvChild *child, int64_t sector_num, int nb_sectors, QEMUIOVector *qiov) { - trace_bdrv_co_writev(bs, sector_num, nb_sectors); + trace_bdrv_co_writev(child->bs, sector_num, nb_sectors); - return bdrv_co_do_writev(bs, sector_num, nb_sectors, qiov, 0); + return bdrv_co_do_writev(child, sector_num, nb_sectors, qiov, 0); } -int coroutine_fn bdrv_co_pwrite_zeroes(BlockDriverState *bs, - int64_t offset, int count, - BdrvRequestFlags flags) +int coroutine_fn bdrv_co_pwrite_zeroes(BdrvChild *child, int64_t offset, + int count, BdrvRequestFlags flags) { - trace_bdrv_co_pwrite_zeroes(bs, offset, count, flags); + trace_bdrv_co_pwrite_zeroes(child->bs, offset, count, flags); - if (!(bs->open_flags & BDRV_O_UNMAP)) { + if (!(child->bs->open_flags & BDRV_O_UNMAP)) { flags &= ~BDRV_REQ_MAY_UNMAP; } - return bdrv_co_pwritev(bs, offset, count, NULL, + return bdrv_co_pwritev(child, offset, count, NULL, BDRV_REQ_ZERO_WRITE | flags); } @@ -1954,23 +1963,23 @@ int bdrv_readv_vmstate(BlockDriverState *bs, QEMUIOVector *qiov, int64_t pos) /**************************************************************/ /* async I/Os */ -BlockAIOCB *bdrv_aio_readv(BlockDriverState *bs, int64_t sector_num, +BlockAIOCB *bdrv_aio_readv(BdrvChild *child, int64_t sector_num, QEMUIOVector *qiov, int nb_sectors, BlockCompletionFunc *cb, void *opaque) { - trace_bdrv_aio_readv(bs, sector_num, nb_sectors, opaque); + trace_bdrv_aio_readv(child->bs, sector_num, nb_sectors, opaque); - return bdrv_co_aio_rw_vector(bs, sector_num, qiov, nb_sectors, 0, + return bdrv_co_aio_rw_vector(child, sector_num, qiov, nb_sectors, 0, cb, opaque, false); } -BlockAIOCB *bdrv_aio_writev(BlockDriverState *bs, int64_t sector_num, +BlockAIOCB *bdrv_aio_writev(BdrvChild *child, int64_t sector_num, QEMUIOVector *qiov, int nb_sectors, BlockCompletionFunc *cb, void *opaque) { - trace_bdrv_aio_writev(bs, sector_num, nb_sectors, opaque); + trace_bdrv_aio_writev(child->bs, sector_num, nb_sectors, opaque); - return bdrv_co_aio_rw_vector(bs, sector_num, qiov, nb_sectors, 0, + return bdrv_co_aio_rw_vector(child, sector_num, qiov, nb_sectors, 0, cb, opaque, true); } @@ -2026,6 +2035,7 @@ typedef struct BlockRequest { typedef struct BlockAIOCBCoroutine { BlockAIOCB common; + BdrvChild *child; BlockRequest req; bool is_write; bool need_bh; @@ -2069,20 +2079,19 @@ static void bdrv_co_maybe_schedule_bh(BlockAIOCBCoroutine *acb) static void coroutine_fn bdrv_co_do_rw(void *opaque) { BlockAIOCBCoroutine *acb = opaque; - BlockDriverState *bs = acb->common.bs; if (!acb->is_write) { - acb->req.error = bdrv_co_do_readv(bs, acb->req.sector, + acb->req.error = bdrv_co_do_readv(acb->child, acb->req.sector, acb->req.nb_sectors, acb->req.qiov, acb->req.flags); } else { - acb->req.error = bdrv_co_do_writev(bs, acb->req.sector, + acb->req.error = bdrv_co_do_writev(acb->child, acb->req.sector, acb->req.nb_sectors, acb->req.qiov, acb->req.flags); } bdrv_co_complete(acb); } -static BlockAIOCB *bdrv_co_aio_rw_vector(BlockDriverState *bs, +static BlockAIOCB *bdrv_co_aio_rw_vector(BdrvChild *child, int64_t sector_num, QEMUIOVector *qiov, int nb_sectors, @@ -2094,7 +2103,8 @@ static BlockAIOCB *bdrv_co_aio_rw_vector(BlockDriverState *bs, Coroutine *co; BlockAIOCBCoroutine *acb; - acb = qemu_aio_get(&bdrv_em_co_aiocb_info, bs, cb, opaque); + acb = qemu_aio_get(&bdrv_em_co_aiocb_info, child->bs, cb, opaque); + acb->child = child; acb->need_bh = true; acb->req.error = -EINPROGRESS; acb->req.sector = sector_num; @@ -2200,9 +2210,15 @@ void qemu_aio_unref(void *p) /**************************************************************/ /* Coroutine block device emulation */ +typedef struct FlushCo { + BlockDriverState *bs; + int ret; +} FlushCo; + + static void coroutine_fn bdrv_flush_co_entry(void *opaque) { - RwCo *rwco = opaque; + FlushCo *rwco = opaque; rwco->ret = bdrv_co_flush(rwco->bs); } @@ -2286,25 +2302,25 @@ out: int bdrv_flush(BlockDriverState *bs) { Coroutine *co; - RwCo rwco = { + FlushCo flush_co = { .bs = bs, .ret = NOT_DONE, }; if (qemu_in_coroutine()) { /* Fast-path if already in coroutine context */ - bdrv_flush_co_entry(&rwco); + bdrv_flush_co_entry(&flush_co); } else { AioContext *aio_context = bdrv_get_aio_context(bs); co = qemu_coroutine_create(bdrv_flush_co_entry); - qemu_coroutine_enter(co, &rwco); - while (rwco.ret == NOT_DONE) { + qemu_coroutine_enter(co, &flush_co); + while (flush_co.ret == NOT_DONE) { aio_poll(aio_context, true); } } - return rwco.ret; + return flush_co.ret; } typedef struct DiscardCo { @@ -2355,19 +2371,21 @@ int coroutine_fn bdrv_co_discard(BlockDriverState *bs, int64_t sector_num, goto out; } - max_discard = MIN_NON_ZERO(bs->bl.max_discard, BDRV_REQUEST_MAX_SECTORS); + max_discard = MIN_NON_ZERO(bs->bl.max_pdiscard >> BDRV_SECTOR_BITS, + BDRV_REQUEST_MAX_SECTORS); while (nb_sectors > 0) { int ret; int num = nb_sectors; + int discard_alignment = bs->bl.pdiscard_alignment >> BDRV_SECTOR_BITS; /* align request */ - if (bs->bl.discard_alignment && - num >= bs->bl.discard_alignment && - sector_num % bs->bl.discard_alignment) { - if (num > bs->bl.discard_alignment) { - num = bs->bl.discard_alignment; + if (discard_alignment && + num >= discard_alignment && + sector_num % discard_alignment) { + if (num > discard_alignment) { + num = discard_alignment; } - num -= sector_num % bs->bl.discard_alignment; + num -= sector_num % discard_alignment; } /* limit request size */ diff --git a/block/iscsi.c b/block/iscsi.c index 9bb5ff6216..24f78a7755 100644 --- a/block/iscsi.c +++ b/block/iscsi.c @@ -473,9 +473,10 @@ iscsi_co_writev_flags(BlockDriverState *bs, int64_t sector_num, int nb_sectors, return -EINVAL; } - if (bs->bl.max_transfer_length && nb_sectors > bs->bl.max_transfer_length) { + if (bs->bl.max_transfer && + nb_sectors << BDRV_SECTOR_BITS > bs->bl.max_transfer) { error_report("iSCSI Error: Write of %d sectors exceeds max_xfer_len " - "of %d sectors", nb_sectors, bs->bl.max_transfer_length); + "of %" PRIu32 " bytes", nb_sectors, bs->bl.max_transfer); return -EINVAL; } @@ -650,9 +651,10 @@ static int coroutine_fn iscsi_co_readv(BlockDriverState *bs, return -EINVAL; } - if (bs->bl.max_transfer_length && nb_sectors > bs->bl.max_transfer_length) { + if (bs->bl.max_transfer && + nb_sectors << BDRV_SECTOR_BITS > bs->bl.max_transfer) { error_report("iSCSI Error: Read of %d sectors exceeds max_xfer_len " - "of %d sectors", nb_sectors, bs->bl.max_transfer_length); + "of %" PRIu32 " bytes", nb_sectors, bs->bl.max_transfer); return -EINVAL; } @@ -1589,14 +1591,13 @@ static int iscsi_open(BlockDriverState *bs, QDict *options, int flags, goto out; } bs->total_sectors = sector_lun2qemu(iscsilun->num_blocks, iscsilun); - bs->request_alignment = iscsilun->block_size; /* We don't have any emulation for devices other than disks and CD-ROMs, so * this must be sg ioctl compatible. We force it to be sg, otherwise qemu * will try to read from the device to guess the image format. */ if (iscsilun->type != TYPE_DISK && iscsilun->type != TYPE_ROM) { - bs->sg = 1; + bs->sg = true; } task = iscsi_do_inquiry(iscsilun->iscsi, iscsilun->lun, 1, @@ -1696,34 +1697,33 @@ static void iscsi_close(BlockDriverState *bs) memset(iscsilun, 0, sizeof(IscsiLun)); } -static int sector_limits_lun2qemu(int64_t sector, IscsiLun *iscsilun) -{ - return MIN(sector_lun2qemu(sector, iscsilun), INT_MAX / 2 + 1); -} - static void iscsi_refresh_limits(BlockDriverState *bs, Error **errp) { /* We don't actually refresh here, but just return data queried in * iscsi_open(): iscsi targets don't change their limits. */ IscsiLun *iscsilun = bs->opaque; - uint32_t max_xfer_len = iscsilun->use_16_for_rw ? 0xffffffff : 0xffff; + uint64_t max_xfer_len = iscsilun->use_16_for_rw ? 0xffffffff : 0xffff; + + bs->bl.request_alignment = iscsilun->block_size; if (iscsilun->bl.max_xfer_len) { max_xfer_len = MIN(max_xfer_len, iscsilun->bl.max_xfer_len); } - bs->bl.max_transfer_length = sector_limits_lun2qemu(max_xfer_len, iscsilun); + if (max_xfer_len * iscsilun->block_size < INT_MAX) { + bs->bl.max_transfer = max_xfer_len * iscsilun->block_size; + } if (iscsilun->lbp.lbpu) { - if (iscsilun->bl.max_unmap < 0xffffffff) { - bs->bl.max_discard = - sector_limits_lun2qemu(iscsilun->bl.max_unmap, iscsilun); + if (iscsilun->bl.max_unmap < 0xffffffff / iscsilun->block_size) { + bs->bl.max_pdiscard = + iscsilun->bl.max_unmap * iscsilun->block_size; } - bs->bl.discard_alignment = - sector_limits_lun2qemu(iscsilun->bl.opt_unmap_gran, iscsilun); + bs->bl.pdiscard_alignment = + iscsilun->bl.opt_unmap_gran * iscsilun->block_size; } else { - bs->bl.discard_alignment = iscsilun->block_size >> BDRV_SECTOR_BITS; + bs->bl.pdiscard_alignment = iscsilun->block_size; } if (iscsilun->bl.max_ws_len < 0xffffffff / iscsilun->block_size) { @@ -1736,8 +1736,11 @@ static void iscsi_refresh_limits(BlockDriverState *bs, Error **errp) } else { bs->bl.pwrite_zeroes_alignment = iscsilun->block_size; } - bs->bl.opt_transfer_length = - sector_limits_lun2qemu(iscsilun->bl.opt_xfer_len, iscsilun); + if (iscsilun->bl.opt_xfer_len && + iscsilun->bl.opt_xfer_len < INT_MAX / iscsilun->block_size) { + bs->bl.opt_transfer = pow2floor(iscsilun->bl.opt_xfer_len * + iscsilun->block_size); + } } /* Note that this will not re-establish a connection with an iSCSI target - it diff --git a/block/linux-aio.c b/block/linux-aio.c index e468960146..7df8651581 100644 --- a/block/linux-aio.c +++ b/block/linux-aio.c @@ -87,7 +87,7 @@ static void qemu_laio_process_completion(struct qemu_laiocb *laiocb) qemu_iovec_memset(laiocb->qiov, ret, 0, laiocb->qiov->size - ret); } else { - ret = -EINVAL; + ret = -ENOSPC; } } } diff --git a/block/nbd-client.c b/block/nbd-client.c index 4d13444409..420bce89f3 100644 --- a/block/nbd-client.c +++ b/block/nbd-client.c @@ -269,10 +269,6 @@ static int nbd_co_writev_1(BlockDriverState *bs, int64_t sector_num, return -reply.error; } -/* qemu-nbd has a limit of slightly less than 1M per request. Try to - * remain aligned to 4K. */ -#define NBD_MAX_SECTORS 2040 - int nbd_client_co_readv(BlockDriverState *bs, int64_t sector_num, int nb_sectors, QEMUIOVector *qiov) { diff --git a/block/nbd.c b/block/nbd.c index 6015e8b537..08e5b67b2f 100644 --- a/block/nbd.c +++ b/block/nbd.c @@ -362,8 +362,8 @@ static int nbd_co_flush(BlockDriverState *bs) static void nbd_refresh_limits(BlockDriverState *bs, Error **errp) { - bs->bl.max_discard = UINT32_MAX >> BDRV_SECTOR_BITS; - bs->bl.max_transfer_length = UINT32_MAX >> BDRV_SECTOR_BITS; + bs->bl.max_pdiscard = NBD_MAX_BUFFER_SIZE; + bs->bl.max_transfer = NBD_MAX_BUFFER_SIZE; } static int nbd_co_discard(BlockDriverState *bs, int64_t sector_num, diff --git a/block/parallels.c b/block/parallels.c index d6a1a616b6..807a80169f 100644 --- a/block/parallels.c +++ b/block/parallels.c @@ -210,7 +210,7 @@ static int64_t allocate_clusters(BlockDriverState *bs, int64_t sector_num, int ret; space += s->prealloc_size; if (s->prealloc_mode == PRL_PREALLOC_MODE_FALLOCATE) { - ret = bdrv_pwrite_zeroes(bs->file->bs, + ret = bdrv_pwrite_zeroes(bs->file, s->data_end << BDRV_SECTOR_BITS, space << BDRV_SECTOR_BITS, 0); } else { @@ -250,7 +250,7 @@ static coroutine_fn int parallels_co_flush_to_os(BlockDriverState *bs) if (off + to_write > s->header_size) { to_write = s->header_size - off; } - ret = bdrv_pwrite(bs->file->bs, off, (uint8_t *)s->header + off, + ret = bdrv_pwrite(bs->file, off, (uint8_t *)s->header + off, to_write); if (ret < 0) { qemu_co_mutex_unlock(&s->lock); @@ -311,7 +311,7 @@ static coroutine_fn int parallels_co_writev(BlockDriverState *bs, qemu_iovec_reset(&hd_qiov); qemu_iovec_concat(&hd_qiov, qiov, bytes_done, nbytes); - ret = bdrv_co_writev(bs->file->bs, position, n, &hd_qiov); + ret = bdrv_co_writev(bs->file, position, n, &hd_qiov); if (ret < 0) { break; } @@ -351,7 +351,7 @@ static coroutine_fn int parallels_co_readv(BlockDriverState *bs, qemu_iovec_reset(&hd_qiov); qemu_iovec_concat(&hd_qiov, qiov, bytes_done, nbytes); - ret = bdrv_co_readv(bs->file->bs, position, n, &hd_qiov); + ret = bdrv_co_readv(bs->file, position, n, &hd_qiov); if (ret < 0) { break; } @@ -432,7 +432,7 @@ static int parallels_check(BlockDriverState *bs, BdrvCheckResult *res, } if (flush_bat) { - ret = bdrv_pwrite_sync(bs->file->bs, 0, s->header, s->header_size); + ret = bdrv_pwrite_sync(bs->file, 0, s->header, s->header_size); if (ret < 0) { res->check_errors++; return ret; @@ -563,7 +563,7 @@ static int parallels_update_header(BlockDriverState *bs) if (size > s->header_size) { size = s->header_size; } - return bdrv_pwrite_sync(bs->file->bs, 0, s->header, size); + return bdrv_pwrite_sync(bs->file, 0, s->header, size); } static int parallels_open(BlockDriverState *bs, QDict *options, int flags, @@ -576,7 +576,7 @@ static int parallels_open(BlockDriverState *bs, QDict *options, int flags, Error *local_err = NULL; char *buf; - ret = bdrv_pread(bs->file->bs, 0, &ph, sizeof(ph)); + ret = bdrv_pread(bs->file, 0, &ph, sizeof(ph)); if (ret < 0) { goto fail; } @@ -631,7 +631,7 @@ static int parallels_open(BlockDriverState *bs, QDict *options, int flags, s->header_size = size; } - ret = bdrv_pread(bs->file->bs, 0, s->header, s->header_size); + ret = bdrv_pread(bs->file, 0, s->header, s->header_size); if (ret < 0) { goto fail; } diff --git a/block/qapi.c b/block/qapi.c index 5594f74d17..6f947e3e66 100644 --- a/block/qapi.c +++ b/block/qapi.c @@ -690,16 +690,15 @@ static void dump_qdict(fprintf_function func_fprintf, void *f, int indentation, void bdrv_image_info_specific_dump(fprintf_function func_fprintf, void *f, ImageInfoSpecific *info_spec) { - QmpOutputVisitor *ov = qmp_output_visitor_new(); QObject *obj, *data; + Visitor *v = qmp_output_visitor_new(&obj); - visit_type_ImageInfoSpecific(qmp_output_get_visitor(ov), NULL, &info_spec, - &error_abort); - obj = qmp_output_get_qobject(ov); + visit_type_ImageInfoSpecific(v, NULL, &info_spec, &error_abort); + visit_complete(v, &obj); assert(qobject_type(obj) == QTYPE_QDICT); data = qdict_get(qobject_to_qdict(obj), "data"); dump_qobject(func_fprintf, f, 1, data); - qmp_output_visitor_cleanup(ov); + visit_free(v); } void bdrv_image_info_dump(fprintf_function func_fprintf, void *f, diff --git a/block/qcow.c b/block/qcow.c index 312af52816..ac849bd47c 100644 --- a/block/qcow.c +++ b/block/qcow.c @@ -105,7 +105,7 @@ static int qcow_open(BlockDriverState *bs, QDict *options, int flags, int ret; QCowHeader header; - ret = bdrv_pread(bs->file->bs, 0, &header, sizeof(header)); + ret = bdrv_pread(bs->file, 0, &header, sizeof(header)); if (ret < 0) { goto fail; } @@ -174,7 +174,7 @@ static int qcow_open(BlockDriverState *bs, QDict *options, int flags, goto fail; } - bs->encrypted = 1; + bs->encrypted = true; } s->cluster_bits = header.cluster_bits; s->cluster_size = 1 << s->cluster_bits; @@ -208,7 +208,7 @@ static int qcow_open(BlockDriverState *bs, QDict *options, int flags, goto fail; } - ret = bdrv_pread(bs->file->bs, s->l1_table_offset, s->l1_table, + ret = bdrv_pread(bs->file, s->l1_table_offset, s->l1_table, s->l1_size * sizeof(uint64_t)); if (ret < 0) { goto fail; @@ -239,7 +239,7 @@ static int qcow_open(BlockDriverState *bs, QDict *options, int flags, ret = -EINVAL; goto fail; } - ret = bdrv_pread(bs->file->bs, header.backing_file_offset, + ret = bdrv_pread(bs->file, header.backing_file_offset, bs->backing_file, len); if (ret < 0) { goto fail; @@ -390,7 +390,7 @@ static uint64_t get_cluster_offset(BlockDriverState *bs, /* update the L1 entry */ s->l1_table[l1_index] = l2_offset; tmp = cpu_to_be64(l2_offset); - if (bdrv_pwrite_sync(bs->file->bs, + if (bdrv_pwrite_sync(bs->file, s->l1_table_offset + l1_index * sizeof(tmp), &tmp, sizeof(tmp)) < 0) return 0; @@ -420,11 +420,11 @@ static uint64_t get_cluster_offset(BlockDriverState *bs, l2_table = s->l2_cache + (min_index << s->l2_bits); if (new_l2_table) { memset(l2_table, 0, s->l2_size * sizeof(uint64_t)); - if (bdrv_pwrite_sync(bs->file->bs, l2_offset, l2_table, + if (bdrv_pwrite_sync(bs->file, l2_offset, l2_table, s->l2_size * sizeof(uint64_t)) < 0) return 0; } else { - if (bdrv_pread(bs->file->bs, l2_offset, l2_table, + if (bdrv_pread(bs->file, l2_offset, l2_table, s->l2_size * sizeof(uint64_t)) != s->l2_size * sizeof(uint64_t)) return 0; @@ -450,7 +450,7 @@ static uint64_t get_cluster_offset(BlockDriverState *bs, cluster_offset = (cluster_offset + s->cluster_size - 1) & ~(s->cluster_size - 1); /* write the cluster content */ - if (bdrv_pwrite(bs->file->bs, cluster_offset, s->cluster_cache, + if (bdrv_pwrite(bs->file, cluster_offset, s->cluster_cache, s->cluster_size) != s->cluster_size) return -1; @@ -480,7 +480,7 @@ static uint64_t get_cluster_offset(BlockDriverState *bs, errno = EIO; return -1; } - if (bdrv_pwrite(bs->file->bs, + if (bdrv_pwrite(bs->file, cluster_offset + i * 512, s->cluster_data, 512) != 512) return -1; @@ -495,7 +495,7 @@ static uint64_t get_cluster_offset(BlockDriverState *bs, /* update L2 table */ tmp = cpu_to_be64(cluster_offset); l2_table[l2_index] = tmp; - if (bdrv_pwrite_sync(bs->file->bs, l2_offset + l2_index * sizeof(tmp), + if (bdrv_pwrite_sync(bs->file, l2_offset + l2_index * sizeof(tmp), &tmp, sizeof(tmp)) < 0) return 0; } @@ -565,7 +565,7 @@ static int decompress_cluster(BlockDriverState *bs, uint64_t cluster_offset) if (s->cluster_cache_offset != coffset) { csize = cluster_offset >> (63 - s->cluster_bits); csize &= (s->cluster_size - 1); - ret = bdrv_pread(bs->file->bs, coffset, s->cluster_data, csize); + ret = bdrv_pread(bs->file, coffset, s->cluster_data, csize); if (ret != csize) return -1; if (decompress_buffer(s->cluster_cache, s->cluster_size, @@ -619,8 +619,7 @@ static coroutine_fn int qcow_co_readv(BlockDriverState *bs, int64_t sector_num, hd_iov.iov_len = n * 512; qemu_iovec_init_external(&hd_qiov, &hd_iov, 1); qemu_co_mutex_unlock(&s->lock); - ret = bdrv_co_readv(bs->backing->bs, sector_num, - n, &hd_qiov); + ret = bdrv_co_readv(bs->backing, sector_num, n, &hd_qiov); qemu_co_mutex_lock(&s->lock); if (ret < 0) { goto fail; @@ -644,7 +643,7 @@ static coroutine_fn int qcow_co_readv(BlockDriverState *bs, int64_t sector_num, hd_iov.iov_len = n * 512; qemu_iovec_init_external(&hd_qiov, &hd_iov, 1); qemu_co_mutex_unlock(&s->lock); - ret = bdrv_co_readv(bs->file->bs, + ret = bdrv_co_readv(bs->file, (cluster_offset >> 9) + index_in_cluster, n, &hd_qiov); qemu_co_mutex_lock(&s->lock); @@ -746,7 +745,7 @@ static coroutine_fn int qcow_co_writev(BlockDriverState *bs, int64_t sector_num, hd_iov.iov_len = n * 512; qemu_iovec_init_external(&hd_qiov, &hd_iov, 1); qemu_co_mutex_unlock(&s->lock); - ret = bdrv_co_writev(bs->file->bs, + ret = bdrv_co_writev(bs->file, (cluster_offset >> 9) + index_in_cluster, n, &hd_qiov); qemu_co_mutex_lock(&s->lock); @@ -900,7 +899,7 @@ static int qcow_make_empty(BlockDriverState *bs) int ret; memset(s->l1_table, 0, l1_length); - if (bdrv_pwrite_sync(bs->file->bs, s->l1_table_offset, s->l1_table, + if (bdrv_pwrite_sync(bs->file, s->l1_table_offset, s->l1_table, l1_length) < 0) return -1; ret = bdrv_truncate(bs->file->bs, s->l1_table_offset + l1_length); @@ -914,6 +913,49 @@ static int qcow_make_empty(BlockDriverState *bs) return 0; } +typedef struct QcowWriteCo { + BlockDriverState *bs; + int64_t sector_num; + const uint8_t *buf; + int nb_sectors; + int ret; +} QcowWriteCo; + +static void qcow_write_co_entry(void *opaque) +{ + QcowWriteCo *co = opaque; + QEMUIOVector qiov; + + struct iovec iov = (struct iovec) { + .iov_base = (uint8_t*) co->buf, + .iov_len = co->nb_sectors * BDRV_SECTOR_SIZE, + }; + qemu_iovec_init_external(&qiov, &iov, 1); + + co->ret = qcow_co_writev(co->bs, co->sector_num, co->nb_sectors, &qiov); +} + +/* Wrapper for non-coroutine contexts */ +static int qcow_write(BlockDriverState *bs, int64_t sector_num, + const uint8_t *buf, int nb_sectors) +{ + Coroutine *co; + AioContext *aio_context = bdrv_get_aio_context(bs); + QcowWriteCo data = { + .bs = bs, + .sector_num = sector_num, + .buf = buf, + .nb_sectors = nb_sectors, + .ret = -EINPROGRESS, + }; + co = qemu_coroutine_create(qcow_write_co_entry); + qemu_coroutine_enter(co, &data); + while (data.ret == -EINPROGRESS) { + aio_poll(aio_context, true); + } + return data.ret; +} + /* XXX: put compressed sectors first, then all the cluster aligned tables to avoid losing bytes in alignment */ static int qcow_write_compressed(BlockDriverState *bs, int64_t sector_num, @@ -970,7 +1012,7 @@ static int qcow_write_compressed(BlockDriverState *bs, int64_t sector_num, if (ret != Z_STREAM_END || out_len >= s->cluster_size) { /* could not compress: write normal cluster */ - ret = bdrv_write(bs, sector_num, buf, s->cluster_sectors); + ret = qcow_write(bs, sector_num, buf, s->cluster_sectors); if (ret < 0) { goto fail; } @@ -983,7 +1025,7 @@ static int qcow_write_compressed(BlockDriverState *bs, int64_t sector_num, } cluster_offset &= s->cluster_offset_mask; - ret = bdrv_pwrite(bs->file->bs, cluster_offset, out_buf, out_len); + ret = bdrv_pwrite(bs->file, cluster_offset, out_buf, out_len); if (ret < 0) { goto fail; } diff --git a/block/qcow2-cache.c b/block/qcow2-cache.c index 580631c3d8..6eaefeddc4 100644 --- a/block/qcow2-cache.c +++ b/block/qcow2-cache.c @@ -210,7 +210,7 @@ static int qcow2_cache_entry_flush(BlockDriverState *bs, Qcow2Cache *c, int i) BLKDBG_EVENT(bs->file, BLKDBG_L2_UPDATE); } - ret = bdrv_pwrite(bs->file->bs, c->entries[i].offset, + ret = bdrv_pwrite(bs->file, c->entries[i].offset, qcow2_cache_get_table_addr(bs, c, i), s->cluster_size); if (ret < 0) { return ret; @@ -357,7 +357,7 @@ static int qcow2_cache_do_get(BlockDriverState *bs, Qcow2Cache *c, BLKDBG_EVENT(bs->file, BLKDBG_L2_LOAD); } - ret = bdrv_pread(bs->file->bs, offset, + ret = bdrv_pread(bs->file, offset, qcow2_cache_get_table_addr(bs, c, i), s->cluster_size); if (ret < 0) { diff --git a/block/qcow2-cluster.c b/block/qcow2-cluster.c index 0fb43566fb..6b92ce9429 100644 --- a/block/qcow2-cluster.c +++ b/block/qcow2-cluster.c @@ -108,7 +108,7 @@ int qcow2_grow_l1_table(BlockDriverState *bs, uint64_t min_size, BLKDBG_EVENT(bs->file, BLKDBG_L1_GROW_WRITE_TABLE); for(i = 0; i < s->l1_size; i++) new_l1_table[i] = cpu_to_be64(new_l1_table[i]); - ret = bdrv_pwrite_sync(bs->file->bs, new_l1_table_offset, + ret = bdrv_pwrite_sync(bs->file, new_l1_table_offset, new_l1_table, new_l1_size2); if (ret < 0) goto fail; @@ -117,9 +117,9 @@ int qcow2_grow_l1_table(BlockDriverState *bs, uint64_t min_size, /* set new table */ BLKDBG_EVENT(bs->file, BLKDBG_L1_GROW_ACTIVATE_TABLE); - cpu_to_be32w((uint32_t*)data, new_l1_size); + stl_be_p(data, new_l1_size); stq_be_p(data + 4, new_l1_table_offset); - ret = bdrv_pwrite_sync(bs->file->bs, offsetof(QCowHeader, l1_size), + ret = bdrv_pwrite_sync(bs->file, offsetof(QCowHeader, l1_size), data, sizeof(data)); if (ret < 0) { goto fail; @@ -185,7 +185,7 @@ int qcow2_write_l1_entry(BlockDriverState *bs, int l1_index) } BLKDBG_EVENT(bs->file, BLKDBG_L1_UPDATE); - ret = bdrv_pwrite_sync(bs->file->bs, + ret = bdrv_pwrite_sync(bs->file, s->l1_table_offset + 8 * l1_start_index, buf, sizeof(buf)); if (ret < 0) { @@ -446,7 +446,7 @@ static int coroutine_fn do_perform_cow(BlockDriverState *bs, } BLKDBG_EVENT(bs->file, BLKDBG_COW_WRITE); - ret = bdrv_co_pwritev(bs->file->bs, cluster_offset + offset_in_cluster, + ret = bdrv_co_pwritev(bs->file, cluster_offset + offset_in_cluster, bytes, &qiov, 0); if (ret < 0) { goto out; @@ -1408,7 +1408,7 @@ int qcow2_decompress_cluster(BlockDriverState *bs, uint64_t cluster_offset) sector_offset = coffset & 511; csize = nb_csectors * 512 - sector_offset; BLKDBG_EVENT(bs->file, BLKDBG_READ_COMPRESSED); - ret = bdrv_read(bs->file->bs, coffset >> 9, s->cluster_data, + ret = bdrv_read(bs->file, coffset >> 9, s->cluster_data, nb_csectors); if (ret < 0) { return ret; @@ -1677,7 +1677,7 @@ static int expand_zero_clusters_in_l1(BlockDriverState *bs, uint64_t *l1_table, (void **)&l2_table); } else { /* load inactive L2 tables from disk */ - ret = bdrv_read(bs->file->bs, l2_offset / BDRV_SECTOR_SIZE, + ret = bdrv_read(bs->file, l2_offset / BDRV_SECTOR_SIZE, (void *)l2_table, s->cluster_sectors); } if (ret < 0) { @@ -1752,7 +1752,7 @@ static int expand_zero_clusters_in_l1(BlockDriverState *bs, uint64_t *l1_table, goto fail; } - ret = bdrv_pwrite_zeroes(bs->file->bs, offset, s->cluster_size, 0); + ret = bdrv_pwrite_zeroes(bs->file, offset, s->cluster_size, 0); if (ret < 0) { if (!preallocated) { qcow2_free_clusters(bs, offset, s->cluster_size, @@ -1784,7 +1784,7 @@ static int expand_zero_clusters_in_l1(BlockDriverState *bs, uint64_t *l1_table, goto fail; } - ret = bdrv_write(bs->file->bs, l2_offset / BDRV_SECTOR_SIZE, + ret = bdrv_write(bs->file, l2_offset / BDRV_SECTOR_SIZE, (void *)l2_table, s->cluster_sectors); if (ret < 0) { goto fail; @@ -1859,7 +1859,7 @@ int qcow2_expand_zero_clusters(BlockDriverState *bs, l1_table = g_realloc(l1_table, l1_sectors * BDRV_SECTOR_SIZE); - ret = bdrv_read(bs->file->bs, + ret = bdrv_read(bs->file, s->snapshots[i].l1_table_offset / BDRV_SECTOR_SIZE, (void *)l1_table, l1_sectors); if (ret < 0) { diff --git a/block/qcow2-refcount.c b/block/qcow2-refcount.c index 3bef410839..49b6ce6bfd 100644 --- a/block/qcow2-refcount.c +++ b/block/qcow2-refcount.c @@ -104,7 +104,7 @@ int qcow2_refcount_init(BlockDriverState *bs) goto fail; } BLKDBG_EVENT(bs->file, BLKDBG_REFTABLE_LOAD); - ret = bdrv_pread(bs->file->bs, s->refcount_table_offset, + ret = bdrv_pread(bs->file, s->refcount_table_offset, s->refcount_table, refcount_table_size2); if (ret < 0) { goto fail; @@ -431,7 +431,7 @@ static int alloc_refcount_block(BlockDriverState *bs, if (refcount_table_index < s->refcount_table_size) { uint64_t data64 = cpu_to_be64(new_block); BLKDBG_EVENT(bs->file, BLKDBG_REFBLOCK_ALLOC_HOOKUP); - ret = bdrv_pwrite_sync(bs->file->bs, + ret = bdrv_pwrite_sync(bs->file, s->refcount_table_offset + refcount_table_index * sizeof(uint64_t), &data64, sizeof(data64)); if (ret < 0) { @@ -533,7 +533,7 @@ static int alloc_refcount_block(BlockDriverState *bs, /* Write refcount blocks to disk */ BLKDBG_EVENT(bs->file, BLKDBG_REFBLOCK_ALLOC_WRITE_BLOCKS); - ret = bdrv_pwrite_sync(bs->file->bs, meta_offset, new_blocks, + ret = bdrv_pwrite_sync(bs->file, meta_offset, new_blocks, blocks_clusters * s->cluster_size); g_free(new_blocks); new_blocks = NULL; @@ -547,7 +547,7 @@ static int alloc_refcount_block(BlockDriverState *bs, } BLKDBG_EVENT(bs->file, BLKDBG_REFBLOCK_ALLOC_WRITE_TABLE); - ret = bdrv_pwrite_sync(bs->file->bs, table_offset, new_table, + ret = bdrv_pwrite_sync(bs->file, table_offset, new_table, table_size * sizeof(uint64_t)); if (ret < 0) { goto fail_table; @@ -562,10 +562,10 @@ static int alloc_refcount_block(BlockDriverState *bs, uint64_t d64; uint32_t d32; } data; - cpu_to_be64w(&data.d64, table_offset); - cpu_to_be32w(&data.d32, table_clusters); + data.d64 = cpu_to_be64(table_offset); + data.d32 = cpu_to_be32(table_clusters); BLKDBG_EVENT(bs->file, BLKDBG_REFBLOCK_ALLOC_SWITCH_TABLE); - ret = bdrv_pwrite_sync(bs->file->bs, + ret = bdrv_pwrite_sync(bs->file, offsetof(QCowHeader, refcount_table_offset), &data, sizeof(data)); if (ret < 0) { @@ -1070,7 +1070,7 @@ int qcow2_update_snapshot_refcount(BlockDriverState *bs, } l1_allocated = true; - ret = bdrv_pread(bs->file->bs, l1_table_offset, l1_table, l1_size2); + ret = bdrv_pread(bs->file, l1_table_offset, l1_table, l1_size2); if (ret < 0) { goto fail; } @@ -1223,7 +1223,7 @@ fail: cpu_to_be64s(&l1_table[i]); } - ret = bdrv_pwrite_sync(bs->file->bs, l1_table_offset, + ret = bdrv_pwrite_sync(bs->file, l1_table_offset, l1_table, l1_size2); for (i = 0; i < l1_size; i++) { @@ -1382,7 +1382,7 @@ static int check_refcounts_l2(BlockDriverState *bs, BdrvCheckResult *res, l2_size = s->l2_size * sizeof(uint64_t); l2_table = g_malloc(l2_size); - ret = bdrv_pread(bs->file->bs, l2_offset, l2_table, l2_size); + ret = bdrv_pread(bs->file, l2_offset, l2_table, l2_size); if (ret < 0) { fprintf(stderr, "ERROR: I/O error in check_refcounts_l2\n"); res->check_errors++; @@ -1514,7 +1514,7 @@ static int check_refcounts_l1(BlockDriverState *bs, res->check_errors++; goto fail; } - ret = bdrv_pread(bs->file->bs, l1_table_offset, l1_table, l1_size2); + ret = bdrv_pread(bs->file, l1_table_offset, l1_table, l1_size2); if (ret < 0) { fprintf(stderr, "ERROR: I/O error in check_refcounts_l1\n"); res->check_errors++; @@ -1612,7 +1612,7 @@ static int check_oflag_copied(BlockDriverState *bs, BdrvCheckResult *res, } } - ret = bdrv_pread(bs->file->bs, l2_offset, l2_table, + ret = bdrv_pread(bs->file, l2_offset, l2_table, s->l2_size * sizeof(uint64_t)); if (ret < 0) { fprintf(stderr, "ERROR: Could not read L2 table: %s\n", @@ -1664,7 +1664,7 @@ static int check_oflag_copied(BlockDriverState *bs, BdrvCheckResult *res, goto fail; } - ret = bdrv_pwrite(bs->file->bs, l2_offset, l2_table, + ret = bdrv_pwrite(bs->file, l2_offset, l2_table, s->cluster_size); if (ret < 0) { fprintf(stderr, "ERROR: Could not write L2 table: %s\n", @@ -2098,7 +2098,7 @@ write_refblocks: on_disk_refblock = (void *)((char *) *refcount_table + refblock_index * s->cluster_size); - ret = bdrv_write(bs->file->bs, refblock_offset / BDRV_SECTOR_SIZE, + ret = bdrv_write(bs->file, refblock_offset / BDRV_SECTOR_SIZE, on_disk_refblock, s->cluster_sectors); if (ret < 0) { fprintf(stderr, "ERROR writing refblock: %s\n", strerror(-ret)); @@ -2147,7 +2147,7 @@ write_refblocks: } assert(reftable_size < INT_MAX / sizeof(uint64_t)); - ret = bdrv_pwrite(bs->file->bs, reftable_offset, on_disk_reftable, + ret = bdrv_pwrite(bs->file, reftable_offset, on_disk_reftable, reftable_size * sizeof(uint64_t)); if (ret < 0) { fprintf(stderr, "ERROR writing reftable: %s\n", strerror(-ret)); @@ -2155,12 +2155,11 @@ write_refblocks: } /* Enter new reftable into the image header */ - cpu_to_be64w(&reftable_offset_and_clusters.reftable_offset, - reftable_offset); - cpu_to_be32w(&reftable_offset_and_clusters.reftable_clusters, - size_to_clusters(s, reftable_size * sizeof(uint64_t))); - ret = bdrv_pwrite_sync(bs->file->bs, offsetof(QCowHeader, - refcount_table_offset), + reftable_offset_and_clusters.reftable_offset = cpu_to_be64(reftable_offset); + reftable_offset_and_clusters.reftable_clusters = + cpu_to_be32(size_to_clusters(s, reftable_size * sizeof(uint64_t))); + ret = bdrv_pwrite_sync(bs->file, + offsetof(QCowHeader, refcount_table_offset), &reftable_offset_and_clusters, sizeof(reftable_offset_and_clusters)); if (ret < 0) { @@ -2407,7 +2406,7 @@ int qcow2_check_metadata_overlap(BlockDriverState *bs, int ign, int64_t offset, return -ENOMEM; } - ret = bdrv_pread(bs->file->bs, l1_ofs, l1, l1_sz2); + ret = bdrv_pread(bs->file, l1_ofs, l1, l1_sz2); if (ret < 0) { g_free(l1); return ret; @@ -2560,7 +2559,7 @@ static int flush_refblock(BlockDriverState *bs, uint64_t **reftable, return ret; } - ret = bdrv_pwrite(bs->file->bs, offset, refblock, s->cluster_size); + ret = bdrv_pwrite(bs->file, offset, refblock, s->cluster_size); if (ret < 0) { error_setg_errno(errp, -ret, "Failed to write refblock"); return ret; @@ -2830,7 +2829,7 @@ int qcow2_change_refcount_order(BlockDriverState *bs, int refcount_order, cpu_to_be64s(&new_reftable[i]); } - ret = bdrv_pwrite(bs->file->bs, new_reftable_offset, new_reftable, + ret = bdrv_pwrite(bs->file, new_reftable_offset, new_reftable, new_reftable_size * sizeof(uint64_t)); for (i = 0; i < new_reftable_size; i++) { diff --git a/block/qcow2-snapshot.c b/block/qcow2-snapshot.c index 242fb21d6e..032424322a 100644 --- a/block/qcow2-snapshot.c +++ b/block/qcow2-snapshot.c @@ -67,7 +67,7 @@ int qcow2_read_snapshots(BlockDriverState *bs) for(i = 0; i < s->nb_snapshots; i++) { /* Read statically sized part of the snapshot header */ offset = align_offset(offset, 8); - ret = bdrv_pread(bs->file->bs, offset, &h, sizeof(h)); + ret = bdrv_pread(bs->file, offset, &h, sizeof(h)); if (ret < 0) { goto fail; } @@ -86,7 +86,7 @@ int qcow2_read_snapshots(BlockDriverState *bs) name_size = be16_to_cpu(h.name_size); /* Read extra data */ - ret = bdrv_pread(bs->file->bs, offset, &extra, + ret = bdrv_pread(bs->file, offset, &extra, MIN(sizeof(extra), extra_data_size)); if (ret < 0) { goto fail; @@ -105,7 +105,7 @@ int qcow2_read_snapshots(BlockDriverState *bs) /* Read snapshot ID */ sn->id_str = g_malloc(id_str_size + 1); - ret = bdrv_pread(bs->file->bs, offset, sn->id_str, id_str_size); + ret = bdrv_pread(bs->file, offset, sn->id_str, id_str_size); if (ret < 0) { goto fail; } @@ -114,7 +114,7 @@ int qcow2_read_snapshots(BlockDriverState *bs) /* Read snapshot name */ sn->name = g_malloc(name_size + 1); - ret = bdrv_pread(bs->file->bs, offset, sn->name, name_size); + ret = bdrv_pread(bs->file, offset, sn->name, name_size); if (ret < 0) { goto fail; } @@ -217,25 +217,25 @@ static int qcow2_write_snapshots(BlockDriverState *bs) h.name_size = cpu_to_be16(name_size); offset = align_offset(offset, 8); - ret = bdrv_pwrite(bs->file->bs, offset, &h, sizeof(h)); + ret = bdrv_pwrite(bs->file, offset, &h, sizeof(h)); if (ret < 0) { goto fail; } offset += sizeof(h); - ret = bdrv_pwrite(bs->file->bs, offset, &extra, sizeof(extra)); + ret = bdrv_pwrite(bs->file, offset, &extra, sizeof(extra)); if (ret < 0) { goto fail; } offset += sizeof(extra); - ret = bdrv_pwrite(bs->file->bs, offset, sn->id_str, id_str_size); + ret = bdrv_pwrite(bs->file, offset, sn->id_str, id_str_size); if (ret < 0) { goto fail; } offset += id_str_size; - ret = bdrv_pwrite(bs->file->bs, offset, sn->name, name_size); + ret = bdrv_pwrite(bs->file, offset, sn->name, name_size); if (ret < 0) { goto fail; } @@ -257,7 +257,7 @@ static int qcow2_write_snapshots(BlockDriverState *bs) header_data.nb_snapshots = cpu_to_be32(s->nb_snapshots); header_data.snapshots_offset = cpu_to_be64(snapshots_offset); - ret = bdrv_pwrite_sync(bs->file->bs, offsetof(QCowHeader, nb_snapshots), + ret = bdrv_pwrite_sync(bs->file, offsetof(QCowHeader, nb_snapshots), &header_data, sizeof(header_data)); if (ret < 0) { goto fail; @@ -399,7 +399,7 @@ int qcow2_snapshot_create(BlockDriverState *bs, QEMUSnapshotInfo *sn_info) goto fail; } - ret = bdrv_pwrite(bs->file->bs, sn->l1_table_offset, l1_table, + ret = bdrv_pwrite(bs->file, sn->l1_table_offset, l1_table, s->l1_size * sizeof(uint64_t)); if (ret < 0) { goto fail; @@ -512,7 +512,7 @@ int qcow2_snapshot_goto(BlockDriverState *bs, const char *snapshot_id) goto fail; } - ret = bdrv_pread(bs->file->bs, sn->l1_table_offset, + ret = bdrv_pread(bs->file, sn->l1_table_offset, sn_l1_table, sn_l1_bytes); if (ret < 0) { goto fail; @@ -530,7 +530,7 @@ int qcow2_snapshot_goto(BlockDriverState *bs, const char *snapshot_id) goto fail; } - ret = bdrv_pwrite_sync(bs->file->bs, s->l1_table_offset, sn_l1_table, + ret = bdrv_pwrite_sync(bs->file, s->l1_table_offset, sn_l1_table, cur_l1_bytes); if (ret < 0) { goto fail; @@ -716,7 +716,7 @@ int qcow2_snapshot_load_tmp(BlockDriverState *bs, return -ENOMEM; } - ret = bdrv_pread(bs->file->bs, sn->l1_table_offset, + ret = bdrv_pread(bs->file, sn->l1_table_offset, new_l1_table, new_l1_bytes); if (ret < 0) { error_setg(errp, "Failed to read l1 table for snapshot"); diff --git a/block/qcow2.c b/block/qcow2.c index 23f666d4ae..a5ea19b0b6 100644 --- a/block/qcow2.c +++ b/block/qcow2.c @@ -107,7 +107,7 @@ static int qcow2_read_extensions(BlockDriverState *bs, uint64_t start_offset, printf("attempting to read extended header in offset %lu\n", offset); #endif - ret = bdrv_pread(bs->file->bs, offset, &ext, sizeof(ext)); + ret = bdrv_pread(bs->file, offset, &ext, sizeof(ext)); if (ret < 0) { error_setg_errno(errp, -ret, "qcow2_read_extension: ERROR: " "pread fail from offset %" PRIu64, offset); @@ -135,7 +135,7 @@ static int qcow2_read_extensions(BlockDriverState *bs, uint64_t start_offset, sizeof(bs->backing_format)); return 2; } - ret = bdrv_pread(bs->file->bs, offset, bs->backing_format, ext.len); + ret = bdrv_pread(bs->file, offset, bs->backing_format, ext.len); if (ret < 0) { error_setg_errno(errp, -ret, "ERROR: ext_backing_format: " "Could not read format name"); @@ -151,7 +151,7 @@ static int qcow2_read_extensions(BlockDriverState *bs, uint64_t start_offset, case QCOW2_EXT_MAGIC_FEATURE_TABLE: if (p_feature_table != NULL) { void* feature_table = g_malloc0(ext.len + 2 * sizeof(Qcow2Feature)); - ret = bdrv_pread(bs->file->bs, offset , feature_table, ext.len); + ret = bdrv_pread(bs->file, offset , feature_table, ext.len); if (ret < 0) { error_setg_errno(errp, -ret, "ERROR: ext_feature_table: " "Could not read table"); @@ -172,7 +172,7 @@ static int qcow2_read_extensions(BlockDriverState *bs, uint64_t start_offset, uext->len = ext.len; QLIST_INSERT_HEAD(&s->unknown_header_ext, uext, next); - ret = bdrv_pread(bs->file->bs, offset , uext->data, uext->len); + ret = bdrv_pread(bs->file, offset , uext->data, uext->len); if (ret < 0) { error_setg_errno(errp, -ret, "ERROR: unknown extension: " "Could not read data"); @@ -249,7 +249,7 @@ int qcow2_mark_dirty(BlockDriverState *bs) } val = cpu_to_be64(s->incompatible_features | QCOW2_INCOMPAT_DIRTY); - ret = bdrv_pwrite(bs->file->bs, offsetof(QCowHeader, incompatible_features), + ret = bdrv_pwrite(bs->file, offsetof(QCowHeader, incompatible_features), &val, sizeof(val)); if (ret < 0) { return ret; @@ -817,7 +817,7 @@ static int qcow2_open(BlockDriverState *bs, QDict *options, int flags, uint64_t ext_end; uint64_t l1_vm_state_index; - ret = bdrv_pread(bs->file->bs, 0, &header, sizeof(header)); + ret = bdrv_pread(bs->file, 0, &header, sizeof(header)); if (ret < 0) { error_setg_errno(errp, -ret, "Could not read qcow2 header"); goto fail; @@ -892,7 +892,7 @@ static int qcow2_open(BlockDriverState *bs, QDict *options, int flags, if (header.header_length > sizeof(header)) { s->unknown_header_fields_size = header.header_length - sizeof(header); s->unknown_header_fields = g_malloc(s->unknown_header_fields_size); - ret = bdrv_pread(bs->file->bs, sizeof(header), s->unknown_header_fields, + ret = bdrv_pread(bs->file, sizeof(header), s->unknown_header_fields, s->unknown_header_fields_size); if (ret < 0) { error_setg_errno(errp, -ret, "Could not read unknown qcow2 header " @@ -980,10 +980,7 @@ static int qcow2_open(BlockDriverState *bs, QDict *options, int flags, goto fail; } - bs->encrypted = 1; - - /* Encryption works on a sector granularity */ - bs->request_alignment = BDRV_SECTOR_SIZE; + bs->encrypted = true; } s->l2_bits = s->cluster_bits - 3; /* L2 is always one cluster */ @@ -1069,7 +1066,7 @@ static int qcow2_open(BlockDriverState *bs, QDict *options, int flags, ret = -ENOMEM; goto fail; } - ret = bdrv_pread(bs->file->bs, s->l1_table_offset, s->l1_table, + ret = bdrv_pread(bs->file, s->l1_table_offset, s->l1_table, s->l1_size * sizeof(uint64_t)); if (ret < 0) { error_setg_errno(errp, -ret, "Could not read L1 table"); @@ -1125,7 +1122,7 @@ static int qcow2_open(BlockDriverState *bs, QDict *options, int flags, ret = -EINVAL; goto fail; } - ret = bdrv_pread(bs->file->bs, header.backing_file_offset, + ret = bdrv_pread(bs->file, header.backing_file_offset, bs->backing_file, len); if (ret < 0) { error_setg_errno(errp, -ret, "Could not read backing file name"); @@ -1202,6 +1199,10 @@ static void qcow2_refresh_limits(BlockDriverState *bs, Error **errp) { BDRVQcow2State *s = bs->opaque; + if (bs->encrypted) { + /* Encryption works on a sector granularity */ + bs->bl.request_alignment = BDRV_SECTOR_SIZE; + } bs->bl.pwrite_zeroes_alignment = s->cluster_size; } @@ -1442,7 +1443,7 @@ static coroutine_fn int qcow2_co_preadv(BlockDriverState *bs, uint64_t offset, BLKDBG_EVENT(bs->file, BLKDBG_READ_BACKING_AIO); qemu_co_mutex_unlock(&s->lock); - ret = bdrv_co_preadv(bs->backing->bs, offset, n1, + ret = bdrv_co_preadv(bs->backing, offset, n1, &local_qiov, 0); qemu_co_mutex_lock(&s->lock); @@ -1505,7 +1506,7 @@ static coroutine_fn int qcow2_co_preadv(BlockDriverState *bs, uint64_t offset, BLKDBG_EVENT(bs->file, BLKDBG_READ_AIO); qemu_co_mutex_unlock(&s->lock); - ret = bdrv_co_preadv(bs->file->bs, + ret = bdrv_co_preadv(bs->file, cluster_offset + offset_in_cluster, cur_bytes, &hd_qiov, 0); qemu_co_mutex_lock(&s->lock); @@ -1636,7 +1637,7 @@ static coroutine_fn int qcow2_co_pwritev(BlockDriverState *bs, uint64_t offset, BLKDBG_EVENT(bs->file, BLKDBG_WRITE_AIO); trace_qcow2_writev_data(qemu_coroutine_self(), cluster_offset + offset_in_cluster); - ret = bdrv_co_pwritev(bs->file->bs, + ret = bdrv_co_pwritev(bs->file, cluster_offset + offset_in_cluster, cur_bytes, &hd_qiov, 0); qemu_co_mutex_lock(&s->lock); @@ -1975,7 +1976,7 @@ int qcow2_update_header(BlockDriverState *bs) } /* Write the new header */ - ret = bdrv_pwrite(bs->file->bs, 0, header, s->cluster_size); + ret = bdrv_pwrite(bs->file, 0, header, s->cluster_size); if (ret < 0) { goto fail; } @@ -2058,7 +2059,7 @@ static int preallocate(BlockDriverState *bs) */ if (host_offset != 0) { uint8_t data = 0; - ret = bdrv_pwrite(bs->file->bs, (host_offset + cur_bytes) - 1, + ret = bdrv_pwrite(bs->file, (host_offset + cur_bytes) - 1, &data, 1); if (ret < 0) { return ret; @@ -2522,7 +2523,7 @@ static int qcow2_truncate(BlockDriverState *bs, int64_t offset) /* write updated header.size */ offset = cpu_to_be64(offset); - ret = bdrv_pwrite_sync(bs->file->bs, offsetof(QCowHeader, size), + ret = bdrv_pwrite_sync(bs->file, offsetof(QCowHeader, size), &offset, sizeof(uint64_t)); if (ret < 0) { return ret; @@ -2532,6 +2533,51 @@ static int qcow2_truncate(BlockDriverState *bs, int64_t offset) return 0; } +typedef struct Qcow2WriteCo { + BlockDriverState *bs; + int64_t sector_num; + const uint8_t *buf; + int nb_sectors; + int ret; +} Qcow2WriteCo; + +static void qcow2_write_co_entry(void *opaque) +{ + Qcow2WriteCo *co = opaque; + QEMUIOVector qiov; + uint64_t offset = co->sector_num * BDRV_SECTOR_SIZE; + uint64_t bytes = co->nb_sectors * BDRV_SECTOR_SIZE; + + struct iovec iov = (struct iovec) { + .iov_base = (uint8_t*) co->buf, + .iov_len = bytes, + }; + qemu_iovec_init_external(&qiov, &iov, 1); + + co->ret = qcow2_co_pwritev(co->bs, offset, bytes, &qiov, 0); +} + +/* Wrapper for non-coroutine contexts */ +static int qcow2_write(BlockDriverState *bs, int64_t sector_num, + const uint8_t *buf, int nb_sectors) +{ + Coroutine *co; + AioContext *aio_context = bdrv_get_aio_context(bs); + Qcow2WriteCo data = { + .bs = bs, + .sector_num = sector_num, + .buf = buf, + .nb_sectors = nb_sectors, + .ret = -EINPROGRESS, + }; + co = qemu_coroutine_create(qcow2_write_co_entry); + qemu_coroutine_enter(co, &data); + while (data.ret == -EINPROGRESS) { + aio_poll(aio_context, true); + } + return data.ret; +} + /* XXX: put compressed sectors first, then all the cluster aligned tables to avoid losing bytes in alignment */ static int qcow2_write_compressed(BlockDriverState *bs, int64_t sector_num, @@ -2595,7 +2641,7 @@ static int qcow2_write_compressed(BlockDriverState *bs, int64_t sector_num, if (ret != Z_STREAM_END || out_len >= s->cluster_size) { /* could not compress: write normal cluster */ - ret = bdrv_write(bs, sector_num, buf, s->cluster_sectors); + ret = qcow2_write(bs, sector_num, buf, s->cluster_sectors); if (ret < 0) { goto fail; } @@ -2614,7 +2660,7 @@ static int qcow2_write_compressed(BlockDriverState *bs, int64_t sector_num, } BLKDBG_EVENT(bs->file, BLKDBG_WRITE_COMPRESSED); - ret = bdrv_pwrite(bs->file->bs, cluster_offset, out_buf, out_len); + ret = bdrv_pwrite(bs->file, cluster_offset, out_buf, out_len); if (ret < 0) { goto fail; } @@ -2663,7 +2709,7 @@ static int make_completely_empty(BlockDriverState *bs) /* After this call, neither the in-memory nor the on-disk refcount * information accurately describe the actual references */ - ret = bdrv_pwrite_zeroes(bs->file->bs, s->l1_table_offset, + ret = bdrv_pwrite_zeroes(bs->file, s->l1_table_offset, l1_clusters * s->cluster_size, 0); if (ret < 0) { goto fail_broken_refcounts; @@ -2677,7 +2723,7 @@ static int make_completely_empty(BlockDriverState *bs) * overwrite parts of the existing refcount and L1 table, which is not * an issue because the dirty flag is set, complete data loss is in fact * desired and partial data loss is consequently fine as well */ - ret = bdrv_pwrite_zeroes(bs->file->bs, s->cluster_size, + ret = bdrv_pwrite_zeroes(bs->file, s->cluster_size, (2 + l1_clusters) * s->cluster_size, 0); /* This call (even if it failed overall) may have overwritten on-disk * refcount structures; in that case, the in-memory refcount information @@ -2693,10 +2739,10 @@ static int make_completely_empty(BlockDriverState *bs) /* "Create" an empty reftable (one cluster) directly after the image * header and an empty L1 table three clusters after the image header; * the cluster between those two will be used as the first refblock */ - cpu_to_be64w(&l1_ofs_rt_ofs_cls.l1_offset, 3 * s->cluster_size); - cpu_to_be64w(&l1_ofs_rt_ofs_cls.reftable_offset, s->cluster_size); - cpu_to_be32w(&l1_ofs_rt_ofs_cls.reftable_clusters, 1); - ret = bdrv_pwrite_sync(bs->file->bs, offsetof(QCowHeader, l1_table_offset), + l1_ofs_rt_ofs_cls.l1_offset = cpu_to_be64(3 * s->cluster_size); + l1_ofs_rt_ofs_cls.reftable_offset = cpu_to_be64(s->cluster_size); + l1_ofs_rt_ofs_cls.reftable_clusters = cpu_to_be32(1); + ret = bdrv_pwrite_sync(bs->file, offsetof(QCowHeader, l1_table_offset), &l1_ofs_rt_ofs_cls, sizeof(l1_ofs_rt_ofs_cls)); if (ret < 0) { goto fail_broken_refcounts; @@ -2727,7 +2773,7 @@ static int make_completely_empty(BlockDriverState *bs) /* Enter the first refblock into the reftable */ rt_entry = cpu_to_be64(2 * s->cluster_size); - ret = bdrv_pwrite_sync(bs->file->bs, s->cluster_size, + ret = bdrv_pwrite_sync(bs->file, s->cluster_size, &rt_entry, sizeof(rt_entry)); if (ret < 0) { goto fail_broken_refcounts; diff --git a/block/qed-table.c b/block/qed-table.c index c841ad10fe..1a731dff51 100644 --- a/block/qed-table.c +++ b/block/qed-table.c @@ -65,7 +65,7 @@ static void qed_read_table(BDRVQEDState *s, uint64_t offset, QEDTable *table, read_table_cb->iov.iov_len = s->header.cluster_size * s->header.table_size, qemu_iovec_init_external(qiov, &read_table_cb->iov, 1); - bdrv_aio_readv(s->bs->file->bs, offset / BDRV_SECTOR_SIZE, qiov, + bdrv_aio_readv(s->bs->file, offset / BDRV_SECTOR_SIZE, qiov, qiov->size / BDRV_SECTOR_SIZE, qed_read_table_cb, read_table_cb); } @@ -154,7 +154,7 @@ static void qed_write_table(BDRVQEDState *s, uint64_t offset, QEDTable *table, /* Adjust for offset into table */ offset += start * sizeof(uint64_t); - bdrv_aio_writev(s->bs->file->bs, offset / BDRV_SECTOR_SIZE, + bdrv_aio_writev(s->bs->file, offset / BDRV_SECTOR_SIZE, &write_table_cb->qiov, write_table_cb->qiov.size / BDRV_SECTOR_SIZE, qed_write_table_cb, write_table_cb); diff --git a/block/qed.c b/block/qed.c index 12068061ac..f619d82c6e 100644 --- a/block/qed.c +++ b/block/qed.c @@ -86,7 +86,7 @@ int qed_write_header_sync(BDRVQEDState *s) int ret; qed_header_cpu_to_le(&s->header, &le); - ret = bdrv_pwrite(s->bs->file->bs, 0, &le, sizeof(le)); + ret = bdrv_pwrite(s->bs->file, 0, &le, sizeof(le)); if (ret != sizeof(le)) { return ret; } @@ -123,7 +123,7 @@ static void qed_write_header_read_cb(void *opaque, int ret) /* Update header */ qed_header_cpu_to_le(&s->header, (QEDHeader *)write_header_cb->buf); - bdrv_aio_writev(s->bs->file->bs, 0, &write_header_cb->qiov, + bdrv_aio_writev(s->bs->file, 0, &write_header_cb->qiov, write_header_cb->nsectors, qed_write_header_cb, write_header_cb); } @@ -155,7 +155,7 @@ static void qed_write_header(BDRVQEDState *s, BlockCompletionFunc cb, write_header_cb->iov.iov_len = len; qemu_iovec_init_external(&write_header_cb->qiov, &write_header_cb->iov, 1); - bdrv_aio_readv(s->bs->file->bs, 0, &write_header_cb->qiov, nsectors, + bdrv_aio_readv(s->bs->file, 0, &write_header_cb->qiov, nsectors, qed_write_header_read_cb, write_header_cb); } @@ -218,7 +218,7 @@ static bool qed_is_image_size_valid(uint64_t image_size, uint32_t cluster_size, * * The string is NUL-terminated. */ -static int qed_read_string(BlockDriverState *file, uint64_t offset, size_t n, +static int qed_read_string(BdrvChild *file, uint64_t offset, size_t n, char *buf, size_t buflen) { int ret; @@ -389,7 +389,7 @@ static int bdrv_qed_open(BlockDriverState *bs, QDict *options, int flags, s->bs = bs; QSIMPLEQ_INIT(&s->allocating_write_reqs); - ret = bdrv_pread(bs->file->bs, 0, &le_header, sizeof(le_header)); + ret = bdrv_pread(bs->file, 0, &le_header, sizeof(le_header)); if (ret < 0) { return ret; } @@ -446,7 +446,7 @@ static int bdrv_qed_open(BlockDriverState *bs, QDict *options, int flags, return -EINVAL; } - ret = qed_read_string(bs->file->bs, s->header.backing_filename_offset, + ret = qed_read_string(bs->file, s->header.backing_filename_offset, s->header.backing_filename_size, bs->backing_file, sizeof(bs->backing_file)); if (ret < 0) { @@ -800,7 +800,7 @@ static void qed_read_backing_file(BDRVQEDState *s, uint64_t pos, qemu_iovec_concat(*backing_qiov, qiov, 0, size); BLKDBG_EVENT(s->bs->file, BLKDBG_READ_BACKING_AIO); - bdrv_aio_readv(s->bs->backing->bs, pos / BDRV_SECTOR_SIZE, + bdrv_aio_readv(s->bs->backing, pos / BDRV_SECTOR_SIZE, *backing_qiov, size / BDRV_SECTOR_SIZE, cb, opaque); } @@ -837,7 +837,7 @@ static void qed_copy_from_backing_file_write(void *opaque, int ret) } BLKDBG_EVENT(s->bs->file, BLKDBG_COW_WRITE); - bdrv_aio_writev(s->bs->file->bs, copy_cb->offset / BDRV_SECTOR_SIZE, + bdrv_aio_writev(s->bs->file, copy_cb->offset / BDRV_SECTOR_SIZE, ©_cb->qiov, copy_cb->qiov.size / BDRV_SECTOR_SIZE, qed_copy_from_backing_file_cb, copy_cb); } @@ -1087,7 +1087,7 @@ static void qed_aio_write_main(void *opaque, int ret) } BLKDBG_EVENT(s->bs->file, BLKDBG_WRITE_AIO); - bdrv_aio_writev(s->bs->file->bs, offset / BDRV_SECTOR_SIZE, + bdrv_aio_writev(s->bs->file, offset / BDRV_SECTOR_SIZE, &acb->cur_qiov, acb->cur_qiov.size / BDRV_SECTOR_SIZE, next_fn, acb); } @@ -1319,7 +1319,7 @@ static void qed_aio_read_data(void *opaque, int ret, } BLKDBG_EVENT(bs->file, BLKDBG_READ_AIO); - bdrv_aio_readv(bs->file->bs, offset / BDRV_SECTOR_SIZE, + bdrv_aio_readv(bs->file, offset / BDRV_SECTOR_SIZE, &acb->cur_qiov, acb->cur_qiov.size / BDRV_SECTOR_SIZE, qed_aio_next_io, acb); return; @@ -1575,7 +1575,7 @@ static int bdrv_qed_change_backing_file(BlockDriverState *bs, } /* Write new header */ - ret = bdrv_pwrite_sync(bs->file->bs, 0, buffer, buffer_len); + ret = bdrv_pwrite_sync(bs->file, 0, buffer, buffer_len); g_free(buffer); if (ret == 0) { memcpy(&s->header, &new_header, sizeof(new_header)); diff --git a/block/quorum.c b/block/quorum.c index 331b726f97..9cf876fb34 100644 --- a/block/quorum.c +++ b/block/quorum.c @@ -383,7 +383,7 @@ static bool quorum_rewrite_bad_versions(BDRVQuorumState *s, QuorumAIOCB *acb, continue; } QLIST_FOREACH(item, &version->items, next) { - bdrv_aio_writev(s->children[item->index]->bs, acb->sector_num, + bdrv_aio_writev(s->children[item->index], acb->sector_num, acb->qiov, acb->nb_sectors, quorum_rewrite_aio_cb, acb); } @@ -660,7 +660,7 @@ static BlockAIOCB *read_quorum_children(QuorumAIOCB *acb) } for (i = 0; i < s->num_children; i++) { - acb->qcrs[i].aiocb = bdrv_aio_readv(s->children[i]->bs, acb->sector_num, + acb->qcrs[i].aiocb = bdrv_aio_readv(s->children[i], acb->sector_num, &acb->qcrs[i].qiov, acb->nb_sectors, quorum_aio_cb, &acb->qcrs[i]); } @@ -678,7 +678,7 @@ static BlockAIOCB *read_fifo_child(QuorumAIOCB *acb) qemu_iovec_clone(&acb->qcrs[acb->child_iter].qiov, acb->qiov, acb->qcrs[acb->child_iter].buf); acb->qcrs[acb->child_iter].aiocb = - bdrv_aio_readv(s->children[acb->child_iter]->bs, acb->sector_num, + bdrv_aio_readv(s->children[acb->child_iter], acb->sector_num, &acb->qcrs[acb->child_iter].qiov, acb->nb_sectors, quorum_aio_cb, &acb->qcrs[acb->child_iter]); @@ -719,7 +719,7 @@ static BlockAIOCB *quorum_aio_writev(BlockDriverState *bs, int i; for (i = 0; i < s->num_children; i++) { - acb->qcrs[i].aiocb = bdrv_aio_writev(s->children[i]->bs, sector_num, + acb->qcrs[i].aiocb = bdrv_aio_writev(s->children[i], sector_num, qiov, nb_sectors, &quorum_aio_cb, &acb->qcrs[i]); } diff --git a/block/raw-posix.c b/block/raw-posix.c index bef7a671a6..c979ac3fd1 100644 --- a/block/raw-posix.c +++ b/block/raw-posix.c @@ -302,22 +302,22 @@ static void raw_probe_alignment(BlockDriverState *bs, int fd, Error **errp) /* For SCSI generic devices the alignment is not really used. With buffered I/O, we don't have any restrictions. */ if (bdrv_is_sg(bs) || !s->needs_alignment) { - bs->request_alignment = 1; + bs->bl.request_alignment = 1; s->buf_align = 1; return; } - bs->request_alignment = 0; + bs->bl.request_alignment = 0; s->buf_align = 0; /* Let's try to use the logical blocksize for the alignment. */ - if (probe_logical_blocksize(fd, &bs->request_alignment) < 0) { - bs->request_alignment = 0; + if (probe_logical_blocksize(fd, &bs->bl.request_alignment) < 0) { + bs->bl.request_alignment = 0; } #ifdef CONFIG_XFS if (s->is_xfs) { struct dioattr da; if (xfsctl(NULL, fd, XFS_IOC_DIOINFO, &da) >= 0) { - bs->request_alignment = da.d_miniosz; + bs->bl.request_alignment = da.d_miniosz; /* The kernel returns wrong information for d_mem */ /* s->buf_align = da.d_mem; */ } @@ -337,21 +337,21 @@ static void raw_probe_alignment(BlockDriverState *bs, int fd, Error **errp) qemu_vfree(buf); } - if (!bs->request_alignment) { + if (!bs->bl.request_alignment) { size_t align; buf = qemu_memalign(s->buf_align, max_align); for (align = 512; align <= max_align; align <<= 1) { if (raw_is_io_aligned(fd, buf, align)) { - bs->request_alignment = align; + bs->bl.request_alignment = align; break; } } qemu_vfree(buf); } - if (!s->buf_align || !bs->request_alignment) { - error_setg(errp, "Could not find working O_DIRECT alignment. " - "Try cache.direct=off."); + if (!s->buf_align || !bs->bl.request_alignment) { + error_setg(errp, "Could not find working O_DIRECT alignment"); + error_append_hint(errp, "Try cache.direct=off\n"); } } @@ -745,8 +745,8 @@ static void raw_refresh_limits(BlockDriverState *bs, Error **errp) if (!fstat(s->fd, &st)) { if (S_ISBLK(st.st_mode)) { int ret = hdev_get_max_transfer_length(s->fd); - if (ret >= 0) { - bs->bl.max_transfer_length = ret; + if (ret > 0 && ret <= BDRV_REQUEST_MAX_SECTORS) { + bs->bl.max_transfer = pow2floor(ret << BDRV_SECTOR_BITS); } } } diff --git a/block/raw-win32.c b/block/raw-win32.c index fd23891534..62edb1a6cc 100644 --- a/block/raw-win32.c +++ b/block/raw-win32.c @@ -222,7 +222,7 @@ static void raw_attach_aio_context(BlockDriverState *bs, } } -static void raw_probe_alignment(BlockDriverState *bs) +static void raw_probe_alignment(BlockDriverState *bs, Error **errp) { BDRVRawState *s = bs->opaque; DWORD sectorsPerCluster, freeClusters, totalClusters, count; @@ -230,14 +230,14 @@ static void raw_probe_alignment(BlockDriverState *bs) BOOL status; if (s->type == FTYPE_CD) { - bs->request_alignment = 2048; + bs->bl.request_alignment = 2048; return; } if (s->type == FTYPE_HARDDISK) { status = DeviceIoControl(s->hfile, IOCTL_DISK_GET_DRIVE_GEOMETRY_EX, NULL, 0, &dg, sizeof(dg), &count, NULL); if (status != 0) { - bs->request_alignment = dg.Geometry.BytesPerSector; + bs->bl.request_alignment = dg.Geometry.BytesPerSector; return; } /* try GetDiskFreeSpace too */ @@ -247,7 +247,7 @@ static void raw_probe_alignment(BlockDriverState *bs) GetDiskFreeSpace(s->drive_path, §orsPerCluster, &dg.Geometry.BytesPerSector, &freeClusters, &totalClusters); - bs->request_alignment = dg.Geometry.BytesPerSector; + bs->bl.request_alignment = dg.Geometry.BytesPerSector; } } @@ -365,7 +365,6 @@ static int raw_open(BlockDriverState *bs, QDict *options, int flags, win32_aio_attach_aio_context(s->aio, bdrv_get_aio_context(bs)); } - raw_probe_alignment(bs); ret = 0; fail: qemu_opts_del(opts); @@ -550,6 +549,7 @@ BlockDriver bdrv_file = { .bdrv_needs_filename = true, .bdrv_parse_filename = raw_parse_filename, .bdrv_file_open = raw_open, + .bdrv_refresh_limits = raw_probe_alignment, .bdrv_close = raw_close, .bdrv_create = raw_create, .bdrv_has_zero_init = bdrv_has_zero_init_1, diff --git a/block/raw_bsd.c b/block/raw_bsd.c index 7f637914b7..5f9dd299a6 100644 --- a/block/raw_bsd.c +++ b/block/raw_bsd.c @@ -1,6 +1,6 @@ /* BlockDriver implementation for "raw" * - * Copyright (C) 2010, 2013, Red Hat, Inc. + * Copyright (C) 2010-2016 Red Hat, Inc. * Copyright (C) 2010, Blue Swirl <blauwirbel@gmail.com> * Copyright (C) 2009, Anthony Liguori <aliguori@us.ibm.com> * @@ -54,7 +54,7 @@ static int coroutine_fn raw_co_readv(BlockDriverState *bs, int64_t sector_num, int nb_sectors, QEMUIOVector *qiov) { BLKDBG_EVENT(bs->file, BLKDBG_READ_AIO); - return bdrv_co_readv(bs->file->bs, sector_num, nb_sectors, qiov); + return bdrv_co_readv(bs->file, sector_num, nb_sectors, qiov); } static int coroutine_fn @@ -105,7 +105,7 @@ raw_co_writev_flags(BlockDriverState *bs, int64_t sector_num, int nb_sectors, } BLKDBG_EVENT(bs->file, BLKDBG_WRITE_AIO); - ret = bdrv_co_pwritev(bs->file->bs, sector_num * BDRV_SECTOR_SIZE, + ret = bdrv_co_pwritev(bs->file, sector_num * BDRV_SECTOR_SIZE, nb_sectors * BDRV_SECTOR_SIZE, qiov, flags); fail: @@ -131,7 +131,7 @@ static int coroutine_fn raw_co_pwrite_zeroes(BlockDriverState *bs, int64_t offset, int count, BdrvRequestFlags flags) { - return bdrv_co_pwrite_zeroes(bs->file->bs, offset, count, flags); + return bdrv_co_pwrite_zeroes(bs->file, offset, count, flags); } static int coroutine_fn raw_co_discard(BlockDriverState *bs, @@ -150,11 +150,6 @@ static int raw_get_info(BlockDriverState *bs, BlockDriverInfo *bdi) return bdrv_get_info(bs->file->bs, bdi); } -static void raw_refresh_limits(BlockDriverState *bs, Error **errp) -{ - bs->bl = bs->file->bs->bl; -} - static int raw_truncate(BlockDriverState *bs, int64_t offset) { return bdrv_truncate(bs->file->bs, offset); @@ -252,7 +247,6 @@ BlockDriver bdrv_raw = { .bdrv_getlength = &raw_getlength, .has_variable_length = true, .bdrv_get_info = &raw_get_info, - .bdrv_refresh_limits = &raw_refresh_limits, .bdrv_probe_blocksizes = &raw_probe_blocksizes, .bdrv_probe_geometry = &raw_probe_geometry, .bdrv_media_changed = &raw_media_changed, diff --git a/block/vdi.c b/block/vdi.c index 7d9ab9cc17..8a1cf97928 100644 --- a/block/vdi.c +++ b/block/vdi.c @@ -403,7 +403,7 @@ static int vdi_open(BlockDriverState *bs, QDict *options, int flags, logout("\n"); - ret = bdrv_read(bs->file->bs, 0, (uint8_t *)&header, 1); + ret = bdrv_read(bs->file, 0, (uint8_t *)&header, 1); if (ret < 0) { goto fail; } @@ -500,7 +500,7 @@ static int vdi_open(BlockDriverState *bs, QDict *options, int flags, goto fail; } - ret = bdrv_read(bs->file->bs, s->bmap_sector, (uint8_t *)s->bmap, + ret = bdrv_read(bs->file, s->bmap_sector, (uint8_t *)s->bmap, bmap_size); if (ret < 0) { goto fail_free_bmap; @@ -597,7 +597,7 @@ vdi_co_preadv(BlockDriverState *bs, uint64_t offset, uint64_t bytes, qemu_iovec_reset(&local_qiov); qemu_iovec_concat(&local_qiov, qiov, bytes_done, n_bytes); - ret = bdrv_co_preadv(bs->file->bs, data_offset, n_bytes, + ret = bdrv_co_preadv(bs->file, data_offset, n_bytes, &local_qiov, 0); } logout("%u bytes read\n", n_bytes); @@ -670,7 +670,7 @@ vdi_co_pwritev(BlockDriverState *bs, uint64_t offset, uint64_t bytes, * acquire the lock and thus the padded cluster is written before * the other coroutines can write to the affected area. */ qemu_co_mutex_lock(&s->write_lock); - ret = bdrv_pwrite(bs->file->bs, data_offset, block, s->block_size); + ret = bdrv_pwrite(bs->file, data_offset, block, s->block_size); qemu_co_mutex_unlock(&s->write_lock); } else { uint64_t data_offset = s->header.offset_data + @@ -690,7 +690,7 @@ vdi_co_pwritev(BlockDriverState *bs, uint64_t offset, uint64_t bytes, qemu_iovec_reset(&local_qiov); qemu_iovec_concat(&local_qiov, qiov, bytes_done, n_bytes); - ret = bdrv_co_pwritev(bs->file->bs, data_offset, n_bytes, + ret = bdrv_co_pwritev(bs->file, data_offset, n_bytes, &local_qiov, 0); } @@ -719,7 +719,7 @@ vdi_co_pwritev(BlockDriverState *bs, uint64_t offset, uint64_t bytes, assert(VDI_IS_ALLOCATED(bmap_first)); *header = s->header; vdi_header_to_le(header); - ret = bdrv_write(bs->file->bs, 0, block, 1); + ret = bdrv_write(bs->file, 0, block, 1); g_free(block); block = NULL; @@ -737,7 +737,7 @@ vdi_co_pwritev(BlockDriverState *bs, uint64_t offset, uint64_t bytes, base = ((uint8_t *)&s->bmap[0]) + bmap_first * SECTOR_SIZE; logout("will write %u block map sectors starting from entry %u\n", n_sectors, bmap_first); - ret = bdrv_write(bs->file->bs, offset, base, n_sectors); + ret = bdrv_write(bs->file, offset, base, n_sectors); } return ret; diff --git a/block/vhdx-log.c b/block/vhdx-log.c index 8ab7d22d9a..02eb104310 100644 --- a/block/vhdx-log.c +++ b/block/vhdx-log.c @@ -84,7 +84,7 @@ static int vhdx_log_peek_hdr(BlockDriverState *bs, VHDXLogEntries *log, offset = log->offset + read; - ret = bdrv_pread(bs->file->bs, offset, hdr, sizeof(VHDXLogEntryHeader)); + ret = bdrv_pread(bs->file, offset, hdr, sizeof(VHDXLogEntryHeader)); if (ret < 0) { goto exit; } @@ -144,7 +144,7 @@ static int vhdx_log_read_sectors(BlockDriverState *bs, VHDXLogEntries *log, } offset = log->offset + read; - ret = bdrv_pread(bs->file->bs, offset, buffer, VHDX_LOG_SECTOR_SIZE); + ret = bdrv_pread(bs->file, offset, buffer, VHDX_LOG_SECTOR_SIZE); if (ret < 0) { goto exit; } @@ -194,7 +194,7 @@ static int vhdx_log_write_sectors(BlockDriverState *bs, VHDXLogEntries *log, /* full */ break; } - ret = bdrv_pwrite(bs->file->bs, offset, buffer_tmp, + ret = bdrv_pwrite(bs->file, offset, buffer_tmp, VHDX_LOG_SECTOR_SIZE); if (ret < 0) { goto exit; @@ -466,7 +466,7 @@ static int vhdx_log_flush_desc(BlockDriverState *bs, VHDXLogDescriptor *desc, /* count is only > 1 if we are writing zeroes */ for (i = 0; i < count; i++) { - ret = bdrv_pwrite_sync(bs->file->bs, file_offset, buffer, + ret = bdrv_pwrite_sync(bs->file, file_offset, buffer, VHDX_LOG_SECTOR_SIZE); if (ret < 0) { goto exit; @@ -945,7 +945,7 @@ static int vhdx_log_write(BlockDriverState *bs, BDRVVHDXState *s, if (i == 0 && leading_length) { /* partial sector at the front of the buffer */ - ret = bdrv_pread(bs->file->bs, file_offset, merged_sector, + ret = bdrv_pread(bs->file, file_offset, merged_sector, VHDX_LOG_SECTOR_SIZE); if (ret < 0) { goto exit; @@ -955,7 +955,7 @@ static int vhdx_log_write(BlockDriverState *bs, BDRVVHDXState *s, sector_write = merged_sector; } else if (i == sectors - 1 && trailing_length) { /* partial sector at the end of the buffer */ - ret = bdrv_pread(bs->file->bs, + ret = bdrv_pread(bs->file, file_offset, merged_sector + trailing_length, VHDX_LOG_SECTOR_SIZE - trailing_length); diff --git a/block/vhdx.c b/block/vhdx.c index f5605a2ff4..75ef2b1c2d 100644 --- a/block/vhdx.c +++ b/block/vhdx.c @@ -298,9 +298,10 @@ static int vhdx_probe(const uint8_t *buf, int buf_size, const char *filename) * and then update the header checksum. Header is converted to proper * endianness before being written to the specified file offset */ -static int vhdx_write_header(BlockDriverState *bs_file, VHDXHeader *hdr, +static int vhdx_write_header(BdrvChild *file, VHDXHeader *hdr, uint64_t offset, bool read) { + BlockDriverState *bs_file = file->bs; uint8_t *buffer = NULL; int ret; VHDXHeader *header_le; @@ -315,7 +316,7 @@ static int vhdx_write_header(BlockDriverState *bs_file, VHDXHeader *hdr, buffer = qemu_blockalign(bs_file, VHDX_HEADER_SIZE); if (read) { /* if true, we can't assume the extra reserved bytes are 0 */ - ret = bdrv_pread(bs_file, offset, buffer, VHDX_HEADER_SIZE); + ret = bdrv_pread(file, offset, buffer, VHDX_HEADER_SIZE); if (ret < 0) { goto exit; } @@ -329,7 +330,7 @@ static int vhdx_write_header(BlockDriverState *bs_file, VHDXHeader *hdr, vhdx_header_le_export(hdr, header_le); vhdx_update_checksum(buffer, VHDX_HEADER_SIZE, offsetof(VHDXHeader, checksum)); - ret = bdrv_pwrite_sync(bs_file, offset, header_le, sizeof(VHDXHeader)); + ret = bdrv_pwrite_sync(file, offset, header_le, sizeof(VHDXHeader)); exit: qemu_vfree(buffer); @@ -378,7 +379,7 @@ static int vhdx_update_header(BlockDriverState *bs, BDRVVHDXState *s, inactive_header->log_guid = *log_guid; } - ret = vhdx_write_header(bs->file->bs, inactive_header, header_offset, true); + ret = vhdx_write_header(bs->file, inactive_header, header_offset, true); if (ret < 0) { goto exit; } @@ -430,7 +431,7 @@ static void vhdx_parse_header(BlockDriverState *bs, BDRVVHDXState *s, /* We have to read the whole VHDX_HEADER_SIZE instead of * sizeof(VHDXHeader), because the checksum is over the whole * region */ - ret = bdrv_pread(bs->file->bs, VHDX_HEADER1_OFFSET, buffer, + ret = bdrv_pread(bs->file, VHDX_HEADER1_OFFSET, buffer, VHDX_HEADER_SIZE); if (ret < 0) { goto fail; @@ -447,7 +448,7 @@ static void vhdx_parse_header(BlockDriverState *bs, BDRVVHDXState *s, } } - ret = bdrv_pread(bs->file->bs, VHDX_HEADER2_OFFSET, buffer, + ret = bdrv_pread(bs->file, VHDX_HEADER2_OFFSET, buffer, VHDX_HEADER_SIZE); if (ret < 0) { goto fail; @@ -521,7 +522,7 @@ static int vhdx_open_region_tables(BlockDriverState *bs, BDRVVHDXState *s) * whole block */ buffer = qemu_blockalign(bs, VHDX_HEADER_BLOCK_SIZE); - ret = bdrv_pread(bs->file->bs, VHDX_REGION_TABLE_OFFSET, buffer, + ret = bdrv_pread(bs->file, VHDX_REGION_TABLE_OFFSET, buffer, VHDX_HEADER_BLOCK_SIZE); if (ret < 0) { goto fail; @@ -634,7 +635,7 @@ static int vhdx_parse_metadata(BlockDriverState *bs, BDRVVHDXState *s) buffer = qemu_blockalign(bs, VHDX_METADATA_TABLE_MAX_SIZE); - ret = bdrv_pread(bs->file->bs, s->metadata_rt.file_offset, buffer, + ret = bdrv_pread(bs->file, s->metadata_rt.file_offset, buffer, VHDX_METADATA_TABLE_MAX_SIZE); if (ret < 0) { goto exit; @@ -737,7 +738,7 @@ static int vhdx_parse_metadata(BlockDriverState *bs, BDRVVHDXState *s) goto exit; } - ret = bdrv_pread(bs->file->bs, + ret = bdrv_pread(bs->file, s->metadata_entries.file_parameters_entry.offset + s->metadata_rt.file_offset, &s->params, @@ -772,7 +773,7 @@ static int vhdx_parse_metadata(BlockDriverState *bs, BDRVVHDXState *s) /* determine virtual disk size, logical sector size, * and phys sector size */ - ret = bdrv_pread(bs->file->bs, + ret = bdrv_pread(bs->file, s->metadata_entries.virtual_disk_size_entry.offset + s->metadata_rt.file_offset, &s->virtual_disk_size, @@ -780,7 +781,7 @@ static int vhdx_parse_metadata(BlockDriverState *bs, BDRVVHDXState *s) if (ret < 0) { goto exit; } - ret = bdrv_pread(bs->file->bs, + ret = bdrv_pread(bs->file, s->metadata_entries.logical_sector_size_entry.offset + s->metadata_rt.file_offset, &s->logical_sector_size, @@ -788,7 +789,7 @@ static int vhdx_parse_metadata(BlockDriverState *bs, BDRVVHDXState *s) if (ret < 0) { goto exit; } - ret = bdrv_pread(bs->file->bs, + ret = bdrv_pread(bs->file, s->metadata_entries.phys_sector_size_entry.offset + s->metadata_rt.file_offset, &s->physical_sector_size, @@ -905,7 +906,7 @@ static int vhdx_open(BlockDriverState *bs, QDict *options, int flags, QLIST_INIT(&s->regions); /* validate the file signature */ - ret = bdrv_pread(bs->file->bs, 0, &signature, sizeof(uint64_t)); + ret = bdrv_pread(bs->file, 0, &signature, sizeof(uint64_t)); if (ret < 0) { goto fail; } @@ -964,7 +965,7 @@ static int vhdx_open(BlockDriverState *bs, QDict *options, int flags, goto fail; } - ret = bdrv_pread(bs->file->bs, s->bat_offset, s->bat, s->bat_rt.length); + ret = bdrv_pread(bs->file, s->bat_offset, s->bat, s->bat_rt.length); if (ret < 0) { goto fail; } @@ -1117,7 +1118,7 @@ static coroutine_fn int vhdx_co_readv(BlockDriverState *bs, int64_t sector_num, break; case PAYLOAD_BLOCK_FULLY_PRESENT: qemu_co_mutex_unlock(&s->lock); - ret = bdrv_co_readv(bs->file->bs, + ret = bdrv_co_readv(bs->file, sinfo.file_offset >> BDRV_SECTOR_BITS, sinfo.sectors_avail, &hd_qiov); qemu_co_mutex_lock(&s->lock); @@ -1326,7 +1327,7 @@ static coroutine_fn int vhdx_co_writev(BlockDriverState *bs, int64_t sector_num, } /* block exists, so we can just overwrite it */ qemu_co_mutex_unlock(&s->lock); - ret = bdrv_co_writev(bs->file->bs, + ret = bdrv_co_writev(bs->file, sinfo.file_offset >> BDRV_SECTOR_BITS, sectors_to_write, &hd_qiov); qemu_co_mutex_lock(&s->lock); @@ -1387,9 +1388,11 @@ exit: * There are 2 headers, and the highest sequence number will represent * the active header */ -static int vhdx_create_new_headers(BlockDriverState *bs, uint64_t image_size, +static int vhdx_create_new_headers(BlockBackend *blk, uint64_t image_size, uint32_t log_size) { + BlockDriverState *bs = blk_bs(blk); + BdrvChild *child; int ret = 0; VHDXHeader *hdr = NULL; @@ -1404,12 +1407,18 @@ static int vhdx_create_new_headers(BlockDriverState *bs, uint64_t image_size, vhdx_guid_generate(&hdr->file_write_guid); vhdx_guid_generate(&hdr->data_write_guid); - ret = vhdx_write_header(bs, hdr, VHDX_HEADER1_OFFSET, false); + /* XXX Ugly way to get blk->root, but that's a feature, not a bug. This + * hack makes it obvious that vhdx_write_header() bypasses the BlockBackend + * here, which it really shouldn't be doing. */ + child = QLIST_FIRST(&bs->parents); + assert(!QLIST_NEXT(child, next_parent)); + + ret = vhdx_write_header(child, hdr, VHDX_HEADER1_OFFSET, false); if (ret < 0) { goto exit; } hdr->sequence_number++; - ret = vhdx_write_header(bs, hdr, VHDX_HEADER2_OFFSET, false); + ret = vhdx_write_header(child, hdr, VHDX_HEADER2_OFFSET, false); if (ret < 0) { goto exit; } @@ -1442,7 +1451,7 @@ exit: * The first 64KB of the Metadata section is reserved for the metadata * header and entries; beyond that, the metadata items themselves reside. */ -static int vhdx_create_new_metadata(BlockDriverState *bs, +static int vhdx_create_new_metadata(BlockBackend *blk, uint64_t image_size, uint32_t block_size, uint32_t sector_size, @@ -1538,13 +1547,13 @@ static int vhdx_create_new_metadata(BlockDriverState *bs, VHDX_META_FLAGS_IS_VIRTUAL_DISK; vhdx_metadata_entry_le_export(&md_table_entry[4]); - ret = bdrv_pwrite(bs, metadata_offset, buffer, VHDX_HEADER_BLOCK_SIZE); + ret = blk_pwrite(blk, metadata_offset, buffer, VHDX_HEADER_BLOCK_SIZE, 0); if (ret < 0) { goto exit; } - ret = bdrv_pwrite(bs, metadata_offset + (64 * KiB), entry_buffer, - VHDX_METADATA_ENTRY_BUFFER_SIZE); + ret = blk_pwrite(blk, metadata_offset + (64 * KiB), entry_buffer, + VHDX_METADATA_ENTRY_BUFFER_SIZE, 0); if (ret < 0) { goto exit; } @@ -1564,7 +1573,7 @@ exit: * Fixed images: default state of the BAT is fully populated, with * file offsets and state PAYLOAD_BLOCK_FULLY_PRESENT. */ -static int vhdx_create_bat(BlockDriverState *bs, BDRVVHDXState *s, +static int vhdx_create_bat(BlockBackend *blk, BDRVVHDXState *s, uint64_t image_size, VHDXImageType type, bool use_zero_blocks, uint64_t file_offset, uint32_t length) @@ -1588,12 +1597,12 @@ static int vhdx_create_bat(BlockDriverState *bs, BDRVVHDXState *s, if (type == VHDX_TYPE_DYNAMIC) { /* All zeroes, so we can just extend the file - the end of the BAT * is the furthest thing we have written yet */ - ret = bdrv_truncate(bs, data_file_offset); + ret = blk_truncate(blk, data_file_offset); if (ret < 0) { goto exit; } } else if (type == VHDX_TYPE_FIXED) { - ret = bdrv_truncate(bs, data_file_offset + image_size); + ret = blk_truncate(blk, data_file_offset + image_size); if (ret < 0) { goto exit; } @@ -1604,7 +1613,7 @@ static int vhdx_create_bat(BlockDriverState *bs, BDRVVHDXState *s, if (type == VHDX_TYPE_FIXED || use_zero_blocks || - bdrv_has_zero_init(bs) == 0) { + bdrv_has_zero_init(blk_bs(blk)) == 0) { /* for a fixed file, the default BAT entry is not zero */ s->bat = g_try_malloc0(length); if (length && s->bat == NULL) { @@ -1620,12 +1629,12 @@ static int vhdx_create_bat(BlockDriverState *bs, BDRVVHDXState *s, sinfo.file_offset = data_file_offset + (sector_num << s->logical_sector_size_bits); sinfo.file_offset = ROUND_UP(sinfo.file_offset, MiB); - vhdx_update_bat_table_entry(bs, s, &sinfo, &unused, &unused, + vhdx_update_bat_table_entry(blk_bs(blk), s, &sinfo, &unused, &unused, block_state); cpu_to_le64s(&s->bat[sinfo.bat_idx]); sector_num += s->sectors_per_block; } - ret = bdrv_pwrite(bs, file_offset, s->bat, length); + ret = blk_pwrite(blk, file_offset, s->bat, length, 0); if (ret < 0) { goto exit; } @@ -1645,7 +1654,7 @@ exit: * to create the BAT itself, we will also cause the BAT to be * created. */ -static int vhdx_create_new_region_table(BlockDriverState *bs, +static int vhdx_create_new_region_table(BlockBackend *blk, uint64_t image_size, uint32_t block_size, uint32_t sector_size, @@ -1720,21 +1729,21 @@ static int vhdx_create_new_region_table(BlockDriverState *bs, /* The region table gives us the data we need to create the BAT, * so do that now */ - ret = vhdx_create_bat(bs, s, image_size, type, use_zero_blocks, + ret = vhdx_create_bat(blk, s, image_size, type, use_zero_blocks, bat_file_offset, bat_length); if (ret < 0) { goto exit; } /* Now write out the region headers to disk */ - ret = bdrv_pwrite(bs, VHDX_REGION_TABLE_OFFSET, buffer, - VHDX_HEADER_BLOCK_SIZE); + ret = blk_pwrite(blk, VHDX_REGION_TABLE_OFFSET, buffer, + VHDX_HEADER_BLOCK_SIZE, 0); if (ret < 0) { goto exit; } - ret = bdrv_pwrite(bs, VHDX_REGION_TABLE2_OFFSET, buffer, - VHDX_HEADER_BLOCK_SIZE); + ret = blk_pwrite(blk, VHDX_REGION_TABLE2_OFFSET, buffer, + VHDX_HEADER_BLOCK_SIZE, 0); if (ret < 0) { goto exit; } @@ -1871,13 +1880,13 @@ static int vhdx_create(const char *filename, QemuOpts *opts, Error **errp) /* Creates (B),(C) */ - ret = vhdx_create_new_headers(blk_bs(blk), image_size, log_size); + ret = vhdx_create_new_headers(blk, image_size, log_size); if (ret < 0) { goto delete_and_exit; } /* Creates (D),(E),(G) explicitly. (F) created as by-product */ - ret = vhdx_create_new_region_table(blk_bs(blk), image_size, block_size, 512, + ret = vhdx_create_new_region_table(blk, image_size, block_size, 512, log_size, use_zero_blocks, image_type, &metadata_offset); if (ret < 0) { @@ -1885,7 +1894,7 @@ static int vhdx_create(const char *filename, QemuOpts *opts, Error **errp) } /* Creates (H) */ - ret = vhdx_create_new_metadata(blk_bs(blk), image_size, block_size, 512, + ret = vhdx_create_new_metadata(blk, image_size, block_size, 512, metadata_offset, image_type); if (ret < 0) { goto delete_and_exit; diff --git a/block/vmdk.c b/block/vmdk.c index 2901692700..d73f4314ba 100644 --- a/block/vmdk.c +++ b/block/vmdk.c @@ -252,7 +252,7 @@ static uint32_t vmdk_read_cid(BlockDriverState *bs, int parent) int ret; desc = g_malloc0(DESC_SIZE); - ret = bdrv_pread(bs->file->bs, s->desc_offset, desc, DESC_SIZE); + ret = bdrv_pread(bs->file, s->desc_offset, desc, DESC_SIZE); if (ret < 0) { g_free(desc); return 0; @@ -286,7 +286,7 @@ static int vmdk_write_cid(BlockDriverState *bs, uint32_t cid) desc = g_malloc0(DESC_SIZE); tmp_desc = g_malloc0(DESC_SIZE); - ret = bdrv_pread(bs->file->bs, s->desc_offset, desc, DESC_SIZE); + ret = bdrv_pread(bs->file, s->desc_offset, desc, DESC_SIZE); if (ret < 0) { goto out; } @@ -306,7 +306,7 @@ static int vmdk_write_cid(BlockDriverState *bs, uint32_t cid) pstrcat(desc, DESC_SIZE, tmp_desc); } - ret = bdrv_pwrite_sync(bs->file->bs, s->desc_offset, desc, DESC_SIZE); + ret = bdrv_pwrite_sync(bs->file, s->desc_offset, desc, DESC_SIZE); out: g_free(desc); @@ -350,7 +350,7 @@ static int vmdk_parent_open(BlockDriverState *bs) int ret; desc = g_malloc0(DESC_SIZE + 1); - ret = bdrv_pread(bs->file->bs, s->desc_offset, desc, DESC_SIZE); + ret = bdrv_pread(bs->file, s->desc_offset, desc, DESC_SIZE); if (ret < 0) { goto out; } @@ -454,7 +454,7 @@ static int vmdk_init_tables(BlockDriverState *bs, VmdkExtent *extent, return -ENOMEM; } - ret = bdrv_pread(extent->file->bs, + ret = bdrv_pread(extent->file, extent->l1_table_offset, extent->l1_table, l1_size); @@ -474,7 +474,7 @@ static int vmdk_init_tables(BlockDriverState *bs, VmdkExtent *extent, ret = -ENOMEM; goto fail_l1; } - ret = bdrv_pread(extent->file->bs, + ret = bdrv_pread(extent->file, extent->l1_backup_table_offset, extent->l1_backup_table, l1_size); @@ -508,7 +508,7 @@ static int vmdk_open_vmfs_sparse(BlockDriverState *bs, VMDK3Header header; VmdkExtent *extent; - ret = bdrv_pread(file->bs, sizeof(magic), &header, sizeof(header)); + ret = bdrv_pread(file, sizeof(magic), &header, sizeof(header)); if (ret < 0) { error_setg_errno(errp, -ret, "Could not read header from file '%s'", @@ -538,14 +538,13 @@ static int vmdk_open_vmfs_sparse(BlockDriverState *bs, static int vmdk_open_desc_file(BlockDriverState *bs, int flags, char *buf, QDict *options, Error **errp); -static char *vmdk_read_desc(BlockDriverState *file, uint64_t desc_offset, - Error **errp) +static char *vmdk_read_desc(BdrvChild *file, uint64_t desc_offset, Error **errp) { int64_t size; char *buf; int ret; - size = bdrv_getlength(file); + size = bdrv_getlength(file->bs); if (size < 0) { error_setg_errno(errp, -size, "Could not access file"); return NULL; @@ -586,7 +585,7 @@ static int vmdk_open_vmdk4(BlockDriverState *bs, int64_t l1_backup_offset = 0; bool compressed; - ret = bdrv_pread(file->bs, sizeof(magic), &header, sizeof(header)); + ret = bdrv_pread(file, sizeof(magic), &header, sizeof(header)); if (ret < 0) { error_setg_errno(errp, -ret, "Could not read header from file '%s'", @@ -596,7 +595,7 @@ static int vmdk_open_vmdk4(BlockDriverState *bs, if (header.capacity == 0) { uint64_t desc_offset = le64_to_cpu(header.desc_offset); if (desc_offset) { - char *buf = vmdk_read_desc(file->bs, desc_offset << 9, errp); + char *buf = vmdk_read_desc(file, desc_offset << 9, errp); if (!buf) { return -EINVAL; } @@ -636,7 +635,7 @@ static int vmdk_open_vmdk4(BlockDriverState *bs, } QEMU_PACKED eos_marker; } QEMU_PACKED footer; - ret = bdrv_pread(file->bs, + ret = bdrv_pread(file, bs->file->bs->total_sectors * 512 - 1536, &footer, sizeof(footer)); if (ret < 0) { @@ -874,7 +873,7 @@ static int vmdk_parse_extents(const char *desc, BlockDriverState *bs, extent->flat_start_offset = flat_offset << 9; } else if (!strcmp(type, "SPARSE") || !strcmp(type, "VMFSSPARSE")) { /* SPARSE extent and VMFSSPARSE extent are both "COWD" sparse file*/ - char *buf = vmdk_read_desc(extent_file->bs, 0, errp); + char *buf = vmdk_read_desc(extent_file, 0, errp); if (!buf) { ret = -EINVAL; } else { @@ -943,7 +942,7 @@ static int vmdk_open(BlockDriverState *bs, QDict *options, int flags, BDRVVmdkState *s = bs->opaque; uint32_t magic; - buf = vmdk_read_desc(bs->file->bs, 0, errp); + buf = vmdk_read_desc(bs->file, 0, errp); if (!buf) { return -EINVAL; } @@ -1046,14 +1045,14 @@ static int get_whole_cluster(BlockDriverState *bs, /* Read backing data before skip range */ if (skip_start_bytes > 0) { if (bs->backing) { - ret = bdrv_pread(bs->backing->bs, offset, whole_grain, + ret = bdrv_pread(bs->backing, offset, whole_grain, skip_start_bytes); if (ret < 0) { ret = VMDK_ERROR; goto exit; } } - ret = bdrv_pwrite(extent->file->bs, cluster_offset, whole_grain, + ret = bdrv_pwrite(extent->file, cluster_offset, whole_grain, skip_start_bytes); if (ret < 0) { ret = VMDK_ERROR; @@ -1063,7 +1062,7 @@ static int get_whole_cluster(BlockDriverState *bs, /* Read backing data after skip range */ if (skip_end_bytes < cluster_bytes) { if (bs->backing) { - ret = bdrv_pread(bs->backing->bs, offset + skip_end_bytes, + ret = bdrv_pread(bs->backing, offset + skip_end_bytes, whole_grain + skip_end_bytes, cluster_bytes - skip_end_bytes); if (ret < 0) { @@ -1071,7 +1070,7 @@ static int get_whole_cluster(BlockDriverState *bs, goto exit; } } - ret = bdrv_pwrite(extent->file->bs, cluster_offset + skip_end_bytes, + ret = bdrv_pwrite(extent->file, cluster_offset + skip_end_bytes, whole_grain + skip_end_bytes, cluster_bytes - skip_end_bytes); if (ret < 0) { @@ -1091,8 +1090,7 @@ static int vmdk_L2update(VmdkExtent *extent, VmdkMetaData *m_data, { offset = cpu_to_le32(offset); /* update L2 table */ - if (bdrv_pwrite_sync( - extent->file->bs, + if (bdrv_pwrite_sync(extent->file, ((int64_t)m_data->l2_offset * 512) + (m_data->l2_index * sizeof(offset)), &offset, sizeof(offset)) < 0) { @@ -1101,8 +1099,7 @@ static int vmdk_L2update(VmdkExtent *extent, VmdkMetaData *m_data, /* update backup L2 table */ if (extent->l1_backup_table_offset != 0) { m_data->l2_offset = extent->l1_backup_table[m_data->l1_index]; - if (bdrv_pwrite_sync( - extent->file->bs, + if (bdrv_pwrite_sync(extent->file, ((int64_t)m_data->l2_offset * 512) + (m_data->l2_index * sizeof(offset)), &offset, sizeof(offset)) < 0) { @@ -1191,8 +1188,7 @@ static int get_cluster_offset(BlockDriverState *bs, } } l2_table = extent->l2_cache + (min_index * extent->l2_size); - if (bdrv_pread( - extent->file->bs, + if (bdrv_pread(extent->file, (int64_t)l2_offset * 512, l2_table, extent->l2_size * sizeof(uint32_t) @@ -1373,7 +1369,7 @@ static int vmdk_write_extent(VmdkExtent *extent, int64_t cluster_offset, } write_offset = cluster_offset + offset_in_cluster, - ret = bdrv_co_pwritev(extent->file->bs, write_offset, n_bytes, + ret = bdrv_co_pwritev(extent->file, write_offset, n_bytes, &local_qiov, 0); write_end_sector = DIV_ROUND_UP(write_offset + n_bytes, BDRV_SECTOR_SIZE); @@ -1411,7 +1407,7 @@ static int vmdk_read_extent(VmdkExtent *extent, int64_t cluster_offset, if (!extent->compressed) { - ret = bdrv_co_preadv(extent->file->bs, + ret = bdrv_co_preadv(extent->file, cluster_offset + offset_in_cluster, bytes, qiov, 0); if (ret < 0) { @@ -1424,7 +1420,7 @@ static int vmdk_read_extent(VmdkExtent *extent, int64_t cluster_offset, buf_bytes = cluster_bytes * 2; cluster_buf = g_malloc(buf_bytes); uncomp_buf = g_malloc(cluster_bytes); - ret = bdrv_pread(extent->file->bs, + ret = bdrv_pread(extent->file, cluster_offset, cluster_buf, buf_bytes); if (ret < 0) { @@ -1501,7 +1497,7 @@ vmdk_co_preadv(BlockDriverState *bs, uint64_t offset, uint64_t bytes, qemu_iovec_reset(&local_qiov); qemu_iovec_concat(&local_qiov, qiov, bytes_done, n_bytes); - ret = bdrv_co_preadv(bs->backing->bs, offset, n_bytes, + ret = bdrv_co_preadv(bs->backing, offset, n_bytes, &local_qiov, 0); if (ret < 0) { goto fail; diff --git a/block/vpc.c b/block/vpc.c index 076a7ce399..43707ed22c 100644 --- a/block/vpc.c +++ b/block/vpc.c @@ -237,7 +237,7 @@ static int vpc_open(BlockDriverState *bs, QDict *options, int flags, goto fail; } - ret = bdrv_pread(bs->file->bs, 0, s->footer_buf, HEADER_SIZE); + ret = bdrv_pread(bs->file, 0, s->footer_buf, HEADER_SIZE); if (ret < 0) { error_setg(errp, "Unable to read VHD header"); goto fail; @@ -257,7 +257,7 @@ static int vpc_open(BlockDriverState *bs, QDict *options, int flags, } /* If a fixed disk, the footer is found only at the end of the file */ - ret = bdrv_pread(bs->file->bs, offset-HEADER_SIZE, s->footer_buf, + ret = bdrv_pread(bs->file, offset-HEADER_SIZE, s->footer_buf, HEADER_SIZE); if (ret < 0) { goto fail; @@ -328,7 +328,7 @@ static int vpc_open(BlockDriverState *bs, QDict *options, int flags, } if (disk_type == VHD_DYNAMIC) { - ret = bdrv_pread(bs->file->bs, be64_to_cpu(footer->data_offset), buf, + ret = bdrv_pread(bs->file, be64_to_cpu(footer->data_offset), buf, HEADER_SIZE); if (ret < 0) { error_setg(errp, "Error reading dynamic VHD header"); @@ -385,7 +385,7 @@ static int vpc_open(BlockDriverState *bs, QDict *options, int flags, s->bat_offset = be64_to_cpu(dyndisk_header->table_offset); - ret = bdrv_pread(bs->file->bs, s->bat_offset, s->pagetable, + ret = bdrv_pread(bs->file, s->bat_offset, s->pagetable, pagetable_size); if (ret < 0) { error_setg(errp, "Error reading pagetable"); @@ -481,7 +481,7 @@ static inline int64_t get_image_offset(BlockDriverState *bs, uint64_t offset, s->last_bitmap_offset = bitmap_offset; memset(bitmap, 0xff, s->bitmap_size); - bdrv_pwrite_sync(bs->file->bs, bitmap_offset, bitmap, s->bitmap_size); + bdrv_pwrite_sync(bs->file, bitmap_offset, bitmap, s->bitmap_size); } return block_offset; @@ -505,7 +505,7 @@ static int rewrite_footer(BlockDriverState* bs) BDRVVPCState *s = bs->opaque; int64_t offset = s->free_data_block_offset; - ret = bdrv_pwrite_sync(bs->file->bs, offset, s->footer_buf, HEADER_SIZE); + ret = bdrv_pwrite_sync(bs->file, offset, s->footer_buf, HEADER_SIZE); if (ret < 0) return ret; @@ -539,7 +539,7 @@ static int64_t alloc_block(BlockDriverState* bs, int64_t offset) /* Initialize the block's bitmap */ memset(bitmap, 0xff, s->bitmap_size); - ret = bdrv_pwrite_sync(bs->file->bs, s->free_data_block_offset, bitmap, + ret = bdrv_pwrite_sync(bs->file, s->free_data_block_offset, bitmap, s->bitmap_size); if (ret < 0) { return ret; @@ -554,7 +554,7 @@ static int64_t alloc_block(BlockDriverState* bs, int64_t offset) /* Write BAT entry to disk */ bat_offset = s->bat_offset + (4 * index); bat_value = cpu_to_be32(s->pagetable[index]); - ret = bdrv_pwrite_sync(bs->file->bs, bat_offset, &bat_value, 4); + ret = bdrv_pwrite_sync(bs->file, bat_offset, &bat_value, 4); if (ret < 0) goto fail; @@ -591,7 +591,7 @@ vpc_co_preadv(BlockDriverState *bs, uint64_t offset, uint64_t bytes, QEMUIOVector local_qiov; if (be32_to_cpu(footer->type) == VHD_FIXED) { - return bdrv_co_preadv(bs->file->bs, offset, bytes, qiov, 0); + return bdrv_co_preadv(bs->file, offset, bytes, qiov, 0); } qemu_co_mutex_lock(&s->lock); @@ -607,7 +607,7 @@ vpc_co_preadv(BlockDriverState *bs, uint64_t offset, uint64_t bytes, qemu_iovec_reset(&local_qiov); qemu_iovec_concat(&local_qiov, qiov, bytes_done, n_bytes); - ret = bdrv_co_preadv(bs->file->bs, image_offset, n_bytes, + ret = bdrv_co_preadv(bs->file, image_offset, n_bytes, &local_qiov, 0); if (ret < 0) { goto fail; @@ -640,7 +640,7 @@ vpc_co_pwritev(BlockDriverState *bs, uint64_t offset, uint64_t bytes, QEMUIOVector local_qiov; if (be32_to_cpu(footer->type) == VHD_FIXED) { - return bdrv_co_pwritev(bs->file->bs, offset, bytes, qiov, 0); + return bdrv_co_pwritev(bs->file, offset, bytes, qiov, 0); } qemu_co_mutex_lock(&s->lock); @@ -661,7 +661,7 @@ vpc_co_pwritev(BlockDriverState *bs, uint64_t offset, uint64_t bytes, qemu_iovec_reset(&local_qiov); qemu_iovec_concat(&local_qiov, qiov, bytes_done, n_bytes); - ret = bdrv_co_pwritev(bs->file->bs, image_offset, n_bytes, + ret = bdrv_co_pwritev(bs->file, image_offset, n_bytes, &local_qiov, 0); if (ret < 0) { goto fail; diff --git a/block/vvfat.c b/block/vvfat.c index 5569450616..c3f24c6eb0 100644 --- a/block/vvfat.c +++ b/block/vvfat.c @@ -341,9 +341,8 @@ typedef struct BDRVVVFATState { unsigned int current_cluster; /* write support */ - BlockDriverState* write_target; char* qcow_filename; - BlockDriverState* qcow; + BdrvChild* qcow; void* fat2; char* used_clusters; array_t commits; @@ -981,7 +980,7 @@ static int init_directories(BDRVVVFATState* s, static BDRVVVFATState *vvv = NULL; #endif -static int enable_write_target(BDRVVVFATState *s, Error **errp); +static int enable_write_target(BlockDriverState *bs, Error **errp); static int is_consistent(BDRVVVFATState *s); static QemuOptsList runtime_opts = { @@ -1158,8 +1157,8 @@ static int vvfat_open(BlockDriverState *bs, QDict *options, int flags, s->current_cluster=0xffffffff; /* read only is the default for safety */ - bs->read_only = 1; - s->qcow = s->write_target = NULL; + bs->read_only = true; + s->qcow = NULL; s->qcow_filename = NULL; s->fat2 = NULL; s->downcase_short_names = 1; @@ -1170,14 +1169,13 @@ static int vvfat_open(BlockDriverState *bs, QDict *options, int flags, s->sector_count = cyls * heads * secs - (s->first_sectors_number - 1); if (qemu_opt_get_bool(opts, "rw", false)) { - ret = enable_write_target(s, errp); + ret = enable_write_target(bs, errp); if (ret < 0) { goto fail; } - bs->read_only = 0; + bs->read_only = false; } - bs->request_alignment = BDRV_SECTOR_SIZE; /* No sub-sector I/O supported */ bs->total_sectors = cyls * heads * secs; if (init_directories(s, dirname, heads, secs, errp)) { @@ -1209,6 +1207,11 @@ fail: return ret; } +static void vvfat_refresh_limits(BlockDriverState *bs, Error **errp) +{ + bs->bl.request_alignment = BDRV_SECTOR_SIZE; /* No sub-sector I/O */ +} + static inline void vvfat_close_current_file(BDRVVVFATState *s) { if(s->current_mapping) { @@ -1387,9 +1390,10 @@ static int vvfat_read(BlockDriverState *bs, int64_t sector_num, return -1; if (s->qcow) { int n; - if (bdrv_is_allocated(s->qcow, sector_num, nb_sectors-i, &n)) { -DLOG(fprintf(stderr, "sectors %d+%d allocated\n", (int)sector_num, n)); - if (bdrv_read(s->qcow, sector_num, buf + i*0x200, n)) { + if (bdrv_is_allocated(s->qcow->bs, sector_num, nb_sectors-i, &n)) { + DLOG(fprintf(stderr, "sectors %d+%d allocated\n", + (int)sector_num, n)); + if (bdrv_read(s->qcow, sector_num, buf + i * 0x200, n)) { return -1; } i += n - 1; @@ -1665,12 +1669,15 @@ static inline int cluster_was_modified(BDRVVVFATState* s, uint32_t cluster_num) int was_modified = 0; int i, dummy; - if (s->qcow == NULL) - return 0; + if (s->qcow == NULL) { + return 0; + } - for (i = 0; !was_modified && i < s->sectors_per_cluster; i++) - was_modified = bdrv_is_allocated(s->qcow, - cluster2sector(s, cluster_num) + i, 1, &dummy); + for (i = 0; !was_modified && i < s->sectors_per_cluster; i++) { + was_modified = bdrv_is_allocated(s->qcow->bs, + cluster2sector(s, cluster_num) + i, + 1, &dummy); + } return was_modified; } @@ -1819,11 +1826,16 @@ static uint32_t get_cluster_count_for_direntry(BDRVVVFATState* s, vvfat_close_current_file(s); for (i = 0; i < s->sectors_per_cluster; i++) { - if (!bdrv_is_allocated(s->qcow, offset + i, 1, &dummy)) { - if (vvfat_read(s->bs, offset, s->cluster_buffer, 1)) { + int res; + + res = bdrv_is_allocated(s->qcow->bs, offset + i, 1, &dummy); + if (!res) { + res = vvfat_read(s->bs, offset, s->cluster_buffer, 1); + if (res) { return -1; } - if (bdrv_write(s->qcow, offset, s->cluster_buffer, 1)) { + res = bdrv_write(s->qcow, offset, s->cluster_buffer, 1); + if (res) { return -2; } } @@ -2779,8 +2791,8 @@ static int do_commit(BDRVVVFATState* s) return ret; } - if (s->qcow->drv->bdrv_make_empty) { - s->qcow->drv->bdrv_make_empty(s->qcow); + if (s->qcow->bs->drv->bdrv_make_empty) { + s->qcow->bs->drv->bdrv_make_empty(s->qcow->bs); } memset(s->used_clusters, 0, sector2cluster(s, s->sector_count)); @@ -2946,7 +2958,7 @@ write_target_commit(BlockDriverState *bs, uint64_t offset, uint64_t bytes, static void write_target_close(BlockDriverState *bs) { BDRVVVFATState* s = *((BDRVVVFATState**) bs->opaque); - bdrv_unref(s->qcow); + bdrv_unref_child(s->bs, s->qcow); g_free(s->qcow_filename); } @@ -2956,8 +2968,19 @@ static BlockDriver vvfat_write_target = { .bdrv_close = write_target_close, }; -static int enable_write_target(BDRVVVFATState *s, Error **errp) +static void vvfat_qcow_options(int *child_flags, QDict *child_options, + int parent_flags, QDict *parent_options) { + *child_flags = BDRV_O_RDWR | BDRV_O_NO_FLUSH; +} + +static const BdrvChildRole child_vvfat_qcow = { + .inherit_options = vvfat_qcow_options, +}; + +static int enable_write_target(BlockDriverState *bs, Error **errp) +{ + BDRVVVFATState *s = bs->opaque; BlockDriver *bdrv_qcow = NULL; BlockDriverState *backing; QemuOpts *opts = NULL; @@ -2996,8 +3019,8 @@ static int enable_write_target(BDRVVVFATState *s, Error **errp) options = qdict_new(); qdict_put(options, "driver", qstring_from_str("qcow")); - s->qcow = bdrv_open(s->qcow_filename, NULL, options, - BDRV_O_RDWR | BDRV_O_NO_FLUSH, errp); + s->qcow = bdrv_open_child(s->qcow_filename, options, "write-target", bs, + &child_vvfat_qcow, false, errp); if (!s->qcow) { ret = -EINVAL; goto err; @@ -3046,6 +3069,7 @@ static BlockDriver bdrv_vvfat = { .bdrv_parse_filename = vvfat_parse_filename, .bdrv_file_open = vvfat_open, + .bdrv_refresh_limits = vvfat_refresh_limits, .bdrv_close = vvfat_close, .bdrv_co_preadv = vvfat_co_preadv, diff --git a/blockdev.c b/blockdev.c index 3a104a0aaa..0f8065c4a5 100644 --- a/blockdev.c +++ b/blockdev.c @@ -3950,10 +3950,10 @@ out: void qmp_blockdev_add(BlockdevOptions *options, Error **errp) { - QmpOutputVisitor *ov = qmp_output_visitor_new(); BlockDriverState *bs; BlockBackend *blk = NULL; QObject *obj; + Visitor *v = qmp_output_visitor_new(&obj); QDict *qdict; Error *local_err = NULL; @@ -3972,14 +3972,13 @@ void qmp_blockdev_add(BlockdevOptions *options, Error **errp) } } - visit_type_BlockdevOptions(qmp_output_get_visitor(ov), NULL, &options, - &local_err); + visit_type_BlockdevOptions(v, NULL, &options, &local_err); if (local_err) { error_propagate(errp, local_err); goto fail; } - obj = qmp_output_get_qobject(ov); + visit_complete(v, &obj); qdict = qobject_to_qdict(obj); qdict_flatten(qdict); @@ -4020,7 +4019,7 @@ void qmp_blockdev_add(BlockdevOptions *options, Error **errp) } fail: - qmp_output_visitor_cleanup(ov); + visit_free(v); } void qmp_x_blockdev_del(bool has_id, const char *id, diff --git a/docs/qapi-code-gen.txt b/docs/qapi-code-gen.txt index eff207502f..48b0b31f2e 100644 --- a/docs/qapi-code-gen.txt +++ b/docs/qapi-code-gen.txt @@ -802,32 +802,28 @@ Example: void qapi_free_UserDefOne(UserDefOne *obj) { - QapiDeallocVisitor *qdv; Visitor *v; if (!obj) { return; } - qdv = qapi_dealloc_visitor_new(); - v = qapi_dealloc_get_visitor(qdv); + v = qapi_dealloc_visitor_new(); visit_type_UserDefOne(v, NULL, &obj, NULL); - qapi_dealloc_visitor_cleanup(qdv); + visit_free(v); } void qapi_free_UserDefOneList(UserDefOneList *obj) { - QapiDeallocVisitor *qdv; Visitor *v; if (!obj) { return; } - qdv = qapi_dealloc_visitor_new(); - v = qapi_dealloc_get_visitor(qdv); + v = qapi_dealloc_visitor_new(); visit_type_UserDefOneList(v, NULL, &obj, NULL); - qapi_dealloc_visitor_cleanup(qdv); + visit_free(v); } === scripts/qapi-visit.py === @@ -904,7 +900,7 @@ Example: } visit_check_struct(v, &err); out_obj: - visit_end_struct(v); + visit_end_struct(v, (void **)obj); if (err && visit_is_input(v)) { qapi_free_UserDefOne(*obj); *obj = NULL; @@ -932,7 +928,7 @@ Example: } } - visit_end_list(v); + visit_end_list(v, (void **)obj); if (err && visit_is_input(v)) { qapi_free_UserDefOneList(*obj); *obj = NULL; @@ -984,36 +980,28 @@ Example: static void qmp_marshal_output_UserDefOne(UserDefOne *ret_in, QObject **ret_out, Error **errp) { Error *err = NULL; - QmpOutputVisitor *qov = qmp_output_visitor_new(); - QapiDeallocVisitor *qdv; Visitor *v; - v = qmp_output_get_visitor(qov); + v = qmp_output_visitor_new(ret_out); visit_type_UserDefOne(v, "unused", &ret_in, &err); - if (err) { - goto out; + if (!err) { + visit_complete(v, ret_out); } - *ret_out = qmp_output_get_qobject(qov); - - out: error_propagate(errp, err); - qmp_output_visitor_cleanup(qov); - qdv = qapi_dealloc_visitor_new(); - v = qapi_dealloc_get_visitor(qdv); + visit_free(v); + v = qapi_dealloc_visitor_new(); visit_type_UserDefOne(v, "unused", &ret_in, NULL); - qapi_dealloc_visitor_cleanup(qdv); + visit_free(v); } static void qmp_marshal_my_command(QDict *args, QObject **ret, Error **errp) { Error *err = NULL; UserDefOne *retval; - QmpInputVisitor *qiv = qmp_input_visitor_new(QOBJECT(args), true); - QapiDeallocVisitor *qdv; Visitor *v; UserDefOneList *arg1 = NULL; - v = qmp_input_get_visitor(qiv); + v = qmp_input_visitor_new(QOBJECT(args), true); visit_start_struct(v, NULL, NULL, 0, &err); if (err) { goto out; @@ -1022,7 +1010,7 @@ Example: if (!err) { visit_check_struct(v, &err); } - visit_end_struct(v); + visit_end_struct(v, NULL); if (err) { goto out; } @@ -1036,13 +1024,12 @@ Example: out: error_propagate(errp, err); - qmp_input_visitor_cleanup(qiv); - qdv = qapi_dealloc_visitor_new(); - v = qapi_dealloc_get_visitor(qdv); + visit_free(v); + v = qapi_dealloc_visitor_new(); visit_start_struct(v, NULL, NULL, 0, NULL); visit_type_UserDefOneList(v, "arg1", &arg1, NULL); - visit_end_struct(v); - qapi_dealloc_visitor_cleanup(qdv); + visit_end_struct(v, NULL); + visit_free(v); } static void qmp_init_marshal(void) diff --git a/hmp.c b/hmp.c index 925601ac3e..0cf5baa069 100644 --- a/hmp.c +++ b/hmp.c @@ -1722,7 +1722,7 @@ void hmp_object_add(Monitor *mon, const QDict *qdict) { Error *err = NULL; QemuOpts *opts; - OptsVisitor *ov; + Visitor *v; Object *obj = NULL; opts = qemu_opts_from_qdict(qemu_find_opts("object"), qdict, &err); @@ -1731,9 +1731,9 @@ void hmp_object_add(Monitor *mon, const QDict *qdict) return; } - ov = opts_visitor_new(opts); - obj = user_creatable_add(qdict, opts_get_visitor(ov), &err); - opts_visitor_cleanup(ov); + v = opts_visitor_new(opts); + obj = user_creatable_add(qdict, v, &err); + visit_free(v); qemu_opts_del(opts); if (err) { @@ -1983,15 +1983,14 @@ void hmp_info_memdev(Monitor *mon, const QDict *qdict) Error *err = NULL; MemdevList *memdev_list = qmp_query_memdev(&err); MemdevList *m = memdev_list; - StringOutputVisitor *ov; + Visitor *v; char *str; int i = 0; while (m) { - ov = string_output_visitor_new(false); - visit_type_uint16List(string_output_get_visitor(ov), NULL, - &m->value->host_nodes, NULL); + v = string_output_visitor_new(false, &str); + visit_type_uint16List(v, NULL, &m->value->host_nodes, NULL); monitor_printf(mon, "memory backend: %d\n", i); monitor_printf(mon, " size: %" PRId64 "\n", m->value->size); monitor_printf(mon, " merge: %s\n", @@ -2002,11 +2001,11 @@ void hmp_info_memdev(Monitor *mon, const QDict *qdict) m->value->prealloc ? "true" : "false"); monitor_printf(mon, " policy: %s\n", HostMemPolicy_lookup[m->value->policy]); - str = string_output_get_string(ov); + visit_complete(v, &str); monitor_printf(mon, " host nodes: %s\n", str); g_free(str); - string_output_visitor_cleanup(ov); + visit_free(v); m = m->next; i++; } diff --git a/hw/acpi/core.c b/hw/acpi/core.c index d24b9a98c8..e890a5d675 100644 --- a/hw/acpi/core.c +++ b/hw/acpi/core.c @@ -239,11 +239,11 @@ void acpi_table_add(const QemuOpts *opts, Error **errp) char unsigned *blob = NULL; { - OptsVisitor *ov; + Visitor *v; - ov = opts_visitor_new(opts); - visit_type_AcpiTableOptions(opts_get_visitor(ov), NULL, &hdrs, &err); - opts_visitor_cleanup(ov); + v = opts_visitor_new(opts); + visit_type_AcpiTableOptions(v, NULL, &hdrs, &err); + visit_free(v); } if (err) { diff --git a/hw/block/virtio-blk.c b/hw/block/virtio-blk.c index fb43bbaa46..ae86e944ea 100644 --- a/hw/block/virtio-blk.c +++ b/hw/block/virtio-blk.c @@ -384,7 +384,7 @@ static int multireq_compare(const void *a, const void *b) void virtio_blk_submit_multireq(BlockBackend *blk, MultiReqBuffer *mrb) { int i = 0, start = 0, num_reqs = 0, niov = 0, nb_sectors = 0; - int max_xfer_len = 0; + uint32_t max_transfer; int64_t sector_num = 0; if (mrb->num_reqs == 1) { @@ -393,8 +393,7 @@ void virtio_blk_submit_multireq(BlockBackend *blk, MultiReqBuffer *mrb) return; } - max_xfer_len = blk_get_max_transfer_length(mrb->reqs[0]->dev->blk); - max_xfer_len = MIN_NON_ZERO(max_xfer_len, BDRV_REQUEST_MAX_SECTORS); + max_transfer = blk_get_max_transfer(mrb->reqs[0]->dev->blk); qsort(mrb->reqs, mrb->num_reqs, sizeof(*mrb->reqs), &multireq_compare); @@ -410,8 +409,9 @@ void virtio_blk_submit_multireq(BlockBackend *blk, MultiReqBuffer *mrb) */ if (sector_num + nb_sectors != req->sector_num || niov > blk_get_max_iov(blk) - req->qiov.niov || - req->qiov.size / BDRV_SECTOR_SIZE > max_xfer_len || - nb_sectors > max_xfer_len - req->qiov.size / BDRV_SECTOR_SIZE) { + req->qiov.size > max_transfer || + nb_sectors > (max_transfer - + req->qiov.size) / BDRV_SECTOR_SIZE) { submit_requests(blk, mrb, start, num_reqs, niov); num_reqs = 0; } diff --git a/hw/core/qdev-properties-system.c b/hw/core/qdev-properties-system.c index 891219ae05..df38b8a03b 100644 --- a/hw/core/qdev-properties-system.c +++ b/hw/core/qdev-properties-system.c @@ -82,7 +82,7 @@ static void parse_drive(DeviceState *dev, const char *str, void **ptr, if (blk_attach_dev(blk, dev) < 0) { DriveInfo *dinfo = blk_legacy_dinfo(blk); - if (dinfo->type != IF_NONE) { + if (dinfo && dinfo->type != IF_NONE) { error_setg(errp, "Drive '%s' is already in use because " "it has been automatically connected to another " "device (did you need 'if=none' in the drive options?)", diff --git a/hw/display/qxl.c b/hw/display/qxl.c index 919dc5cd36..46cc86690c 100644 --- a/hw/display/qxl.c +++ b/hw/display/qxl.c @@ -504,6 +504,7 @@ static void interface_set_compression_level(QXLInstance *sin, int level) qxl_rom_set_dirty(qxl); } +#if SPICE_NEEDS_SET_MM_TIME static void interface_set_mm_time(QXLInstance *sin, uint32_t mm_time) { PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl); @@ -517,6 +518,7 @@ static void interface_set_mm_time(QXLInstance *sin, uint32_t mm_time) qxl->rom->mm_clock = cpu_to_le32(mm_time); qxl_rom_set_dirty(qxl); } +#endif static void interface_get_init_info(QXLInstance *sin, QXLDevInitInfo *info) { @@ -893,7 +895,8 @@ static void interface_update_area_complete(QXLInstance *sin, int qxl_i; qemu_mutex_lock(&qxl->ssd.lock); - if (surface_id != 0 || !qxl->render_update_cookie_num) { + if (surface_id != 0 || !num_updated_rects || + !qxl->render_update_cookie_num) { qemu_mutex_unlock(&qxl->ssd.lock); return; } @@ -1068,7 +1071,9 @@ static const QXLInterface qxl_interface = { .attache_worker = interface_attach_worker, .set_compression_level = interface_set_compression_level, +#if SPICE_NEEDS_SET_MM_TIME .set_mm_time = interface_set_mm_time, +#endif .get_init_info = interface_get_init_info, /* the callbacks below are called from spice server thread context */ @@ -1243,6 +1248,7 @@ static int qxl_add_memslot(PCIQXLDevice *d, uint32_t slot_id, uint64_t delta, int pci_region; pcibus_t pci_start; pcibus_t pci_end; + MemoryRegion *mr; intptr_t virt_start; QXLDevMemSlot memslot; int i; @@ -1289,11 +1295,11 @@ static int qxl_add_memslot(PCIQXLDevice *d, uint32_t slot_id, uint64_t delta, switch (pci_region) { case QXL_RAM_RANGE_INDEX: - virt_start = (intptr_t)memory_region_get_ram_ptr(&d->vga.vram); + mr = &d->vga.vram; break; case QXL_VRAM_RANGE_INDEX: case 4 /* vram 64bit */: - virt_start = (intptr_t)memory_region_get_ram_ptr(&d->vram_bar); + mr = &d->vram_bar; break; default: /* should not happen */ @@ -1301,6 +1307,7 @@ static int qxl_add_memslot(PCIQXLDevice *d, uint32_t slot_id, uint64_t delta, return 1; } + virt_start = (intptr_t)memory_region_get_ram_ptr(mr); memslot.slot_id = slot_id; memslot.slot_group_id = MEMSLOT_GROUP_GUEST; /* guest group */ memslot.virt_start = virt_start + (guest_start - pci_start); @@ -1310,7 +1317,8 @@ static int qxl_add_memslot(PCIQXLDevice *d, uint32_t slot_id, uint64_t delta, qxl_rom_set_dirty(d); qemu_spice_add_memslot(&d->ssd, &memslot, async); - d->guest_slots[slot_id].ptr = (void*)memslot.virt_start; + d->guest_slots[slot_id].mr = mr; + d->guest_slots[slot_id].offset = memslot.virt_start - virt_start; d->guest_slots[slot_id].size = memslot.virt_end - memslot.virt_start; d->guest_slots[slot_id].delta = delta; d->guest_slots[slot_id].active = 1; @@ -1337,39 +1345,60 @@ static void qxl_reset_surfaces(PCIQXLDevice *d) } /* can be also called from spice server thread context */ -void *qxl_phys2virt(PCIQXLDevice *qxl, QXLPHYSICAL pqxl, int group_id) +static bool qxl_get_check_slot_offset(PCIQXLDevice *qxl, QXLPHYSICAL pqxl, + uint32_t *s, uint64_t *o) { uint64_t phys = le64_to_cpu(pqxl); uint32_t slot = (phys >> (64 - 8)) & 0xff; uint64_t offset = phys & 0xffffffffffff; - switch (group_id) { - case MEMSLOT_GROUP_HOST: - return (void *)(intptr_t)offset; - case MEMSLOT_GROUP_GUEST: - if (slot >= NUM_MEMSLOTS) { - qxl_set_guest_bug(qxl, "slot too large %d >= %d", slot, - NUM_MEMSLOTS); - return NULL; - } - if (!qxl->guest_slots[slot].active) { - qxl_set_guest_bug(qxl, "inactive slot %d\n", slot); - return NULL; - } - if (offset < qxl->guest_slots[slot].delta) { - qxl_set_guest_bug(qxl, + if (slot >= NUM_MEMSLOTS) { + qxl_set_guest_bug(qxl, "slot too large %d >= %d", slot, + NUM_MEMSLOTS); + return false; + } + if (!qxl->guest_slots[slot].active) { + qxl_set_guest_bug(qxl, "inactive slot %d\n", slot); + return false; + } + if (offset < qxl->guest_slots[slot].delta) { + qxl_set_guest_bug(qxl, "slot %d offset %"PRIu64" < delta %"PRIu64"\n", slot, offset, qxl->guest_slots[slot].delta); - return NULL; - } - offset -= qxl->guest_slots[slot].delta; - if (offset > qxl->guest_slots[slot].size) { - qxl_set_guest_bug(qxl, + return false; + } + offset -= qxl->guest_slots[slot].delta; + if (offset > qxl->guest_slots[slot].size) { + qxl_set_guest_bug(qxl, "slot %d offset %"PRIu64" > size %"PRIu64"\n", slot, offset, qxl->guest_slots[slot].size); + return false; + } + + *s = slot; + *o = offset; + return true; +} + +/* can be also called from spice server thread context */ +void *qxl_phys2virt(PCIQXLDevice *qxl, QXLPHYSICAL pqxl, int group_id) +{ + uint64_t offset; + uint32_t slot; + void *ptr; + + switch (group_id) { + case MEMSLOT_GROUP_HOST: + offset = le64_to_cpu(pqxl) & 0xffffffffffff; + return (void *)(intptr_t)offset; + case MEMSLOT_GROUP_GUEST: + if (!qxl_get_check_slot_offset(qxl, pqxl, &slot, &offset)) { return NULL; } - return qxl->guest_slots[slot].ptr + offset; + ptr = memory_region_get_ram_ptr(qxl->guest_slots[slot].mr); + ptr += qxl->guest_slots[slot].offset; + ptr += offset; + return ptr; } return NULL; } @@ -1784,9 +1813,23 @@ static void qxl_hw_update(void *opaque) qxl_render_update(qxl); } +static void qxl_dirty_one_surface(PCIQXLDevice *qxl, QXLPHYSICAL pqxl, + uint32_t height, int32_t stride) +{ + uint64_t offset; + uint32_t slot, size; + bool rc; + + rc = qxl_get_check_slot_offset(qxl, pqxl, &slot, &offset); + assert(rc == true); + size = height * abs(stride); + trace_qxl_surfaces_dirty(qxl->id, (int)offset, size); + qxl_set_dirty(qxl->guest_slots[slot].mr, + qxl->guest_slots[slot].offset + offset, size); +} + static void qxl_dirty_surfaces(PCIQXLDevice *qxl) { - uintptr_t vram_start; int i; if (qxl->mode != QXL_MODE_NATIVE && qxl->mode != QXL_MODE_COMPAT) { @@ -1794,16 +1837,13 @@ static void qxl_dirty_surfaces(PCIQXLDevice *qxl) } /* dirty the primary surface */ - qxl_set_dirty(&qxl->vga.vram, qxl->shadow_rom.draw_area_offset, - qxl->shadow_rom.surface0_area_size); - - vram_start = (uintptr_t)memory_region_get_ram_ptr(&qxl->vram_bar); + qxl_dirty_one_surface(qxl, qxl->guest_primary.surface.mem, + qxl->guest_primary.surface.height, + qxl->guest_primary.surface.stride); /* dirty the off-screen surfaces */ for (i = 0; i < qxl->ssd.num_surfaces; i++) { QXLSurfaceCmd *cmd; - intptr_t surface_offset; - int surface_size; if (qxl->guest_surfaces.cmds[i] == 0) { continue; @@ -1813,15 +1853,9 @@ static void qxl_dirty_surfaces(PCIQXLDevice *qxl) MEMSLOT_GROUP_GUEST); assert(cmd); assert(cmd->type == QXL_SURFACE_CMD_CREATE); - surface_offset = (intptr_t)qxl_phys2virt(qxl, - cmd->u.surface_create.data, - MEMSLOT_GROUP_GUEST); - assert(surface_offset); - surface_offset -= vram_start; - surface_size = cmd->u.surface_create.height * - abs(cmd->u.surface_create.stride); - trace_qxl_surfaces_dirty(qxl->id, i, (int)surface_offset, surface_size); - qxl_set_dirty(&qxl->vram_bar, surface_offset, surface_size); + qxl_dirty_one_surface(qxl, cmd->u.surface_create.data, + cmd->u.surface_create.height, + cmd->u.surface_create.stride); } } @@ -1914,7 +1948,7 @@ static void qxl_init_ramsize(PCIQXLDevice *qxl) /* vram (surfaces, 64bit, bar 4+5) */ if (qxl->vram_size_mb != -1) { - qxl->vram_size = qxl->vram_size_mb * 1024 * 1024; + qxl->vram_size = (uint64_t)qxl->vram_size_mb * 1024 * 1024; } if (qxl->vram_size < qxl->vram32_size) { qxl->vram_size = qxl->vram32_size; @@ -2020,9 +2054,9 @@ static void qxl_realize_common(PCIQXLDevice *qxl, Error **errp) dprint(qxl, 1, "ram/%s: %d MB [region 0]\n", qxl->id == 0 ? "pri" : "sec", qxl->vga.vram_size / (1024*1024)); - dprint(qxl, 1, "vram/32: %d MB [region 1]\n", + dprint(qxl, 1, "vram/32: %" PRIx64 "d MB [region 1]\n", qxl->vram32_size / (1024*1024)); - dprint(qxl, 1, "vram/64: %d MB %s\n", + dprint(qxl, 1, "vram/64: %" PRIx64 "d MB %s\n", qxl->vram_size / (1024*1024), qxl->vram32_size < qxl->vram_size ? "[region 4]" : "[unmapped]"); @@ -2276,7 +2310,7 @@ static VMStateDescription qxl_vmstate = { static Property qxl_properties[] = { DEFINE_PROP_UINT32("ram_size", PCIQXLDevice, vga.vram_size, 64 * 1024 * 1024), - DEFINE_PROP_UINT32("vram_size", PCIQXLDevice, vram32_size, + DEFINE_PROP_UINT64("vram_size", PCIQXLDevice, vram32_size, 64 * 1024 * 1024), DEFINE_PROP_UINT32("revision", PCIQXLDevice, revision, QXL_DEFAULT_REVISION), diff --git a/hw/display/qxl.h b/hw/display/qxl.h index 2ddf065e1f..fdb619d4a7 100644 --- a/hw/display/qxl.h +++ b/hw/display/qxl.h @@ -53,7 +53,8 @@ typedef struct PCIQXLDevice { struct guest_slots { QXLMemSlot slot; - void *ptr; + MemoryRegion *mr; + uint64_t offset; uint64_t size; uint64_t delta; uint32_t active; @@ -104,9 +105,9 @@ typedef struct PCIQXLDevice { #endif /* vram pci bar */ - uint32_t vram_size; + uint64_t vram_size; MemoryRegion vram_bar; - uint32_t vram32_size; + uint64_t vram32_size; MemoryRegion vram32_bar; /* io bar */ diff --git a/hw/display/trace-events b/hw/display/trace-events index 30bebffd8b..9dd82cecde 100644 --- a/hw/display/trace-events +++ b/hw/display/trace-events @@ -105,7 +105,7 @@ qxl_spice_reset_image_cache(int qid) "%d" qxl_spice_reset_memslots(int qid) "%d" qxl_spice_update_area(int qid, uint32_t surface_id, uint32_t left, uint32_t right, uint32_t top, uint32_t bottom) "%d sid=%d [%d,%d,%d,%d]" qxl_spice_update_area_rest(int qid, uint32_t num_dirty_rects, uint32_t clear_dirty_region) "%d #d=%d clear=%d" -qxl_surfaces_dirty(int qid, int surface, int offset, int size) "%d surface=%d offset=%d size=%d" +qxl_surfaces_dirty(int qid, int offset, int size) "%d offset=%d size=%d" qxl_send_events(int qid, uint32_t events) "%d %d" qxl_send_events_vm_stopped(int qid, uint32_t events) "%d %d" qxl_set_guest_bug(int qid) "%d" diff --git a/hw/display/virtio-gpu-3d.c b/hw/display/virtio-gpu-3d.c index 29918a090b..d6c8c6e2dc 100644 --- a/hw/display/virtio-gpu-3d.c +++ b/hw/display/virtio-gpu-3d.c @@ -171,13 +171,14 @@ static void virgl_cmd_set_scanout(VirtIOGPU *g, virgl_renderer_force_ctx_0(); dpy_gl_scanout(g->scanout[ss.scanout_id].con, info.tex_id, info.flags & 1 /* FIXME: Y_0_TOP */, + info.width, info.height, ss.r.x, ss.r.y, ss.r.width, ss.r.height); } else { if (ss.scanout_id != 0) { dpy_gfx_replace_surface(g->scanout[ss.scanout_id].con, NULL); } dpy_gl_scanout(g->scanout[ss.scanout_id].con, 0, false, - 0, 0, 0, 0); + 0, 0, 0, 0, 0, 0); } g->scanout[ss.scanout_id].resource_id = ss.resource_id; } @@ -580,7 +581,7 @@ void virtio_gpu_virgl_reset(VirtIOGPU *g) if (i != 0) { dpy_gfx_replace_surface(g->scanout[i].con, NULL); } - dpy_gl_scanout(g->scanout[i].con, 0, false, 0, 0, 0, 0); + dpy_gl_scanout(g->scanout[i].con, 0, false, 0, 0, 0, 0, 0, 0); } } diff --git a/hw/display/virtio-gpu.c b/hw/display/virtio-gpu.c index 136c095b7d..f8b0274752 100644 --- a/hw/display/virtio-gpu.c +++ b/hw/display/virtio-gpu.c @@ -934,8 +934,14 @@ static void virtio_gpu_gl_block(void *opaque, bool block) { VirtIOGPU *g = opaque; - g->renderer_blocked = block; - if (!block) { + if (block) { + g->renderer_blocked++; + } else { + g->renderer_blocked--; + } + assert(g->renderer_blocked >= 0); + + if (g->renderer_blocked == 0) { virtio_gpu_process_cmdq(g); } } diff --git a/hw/pci/pcie_aer.c b/hw/pci/pcie_aer.c index e2d4e68ba3..048ce6a424 100644 --- a/hw/pci/pcie_aer.c +++ b/hw/pci/pcie_aer.c @@ -21,6 +21,7 @@ #include "qemu/osdep.h" #include "sysemu/sysemu.h" #include "qapi/qmp/types.h" +#include "qapi/qmp/qjson.h" #include "monitor/monitor.h" #include "hw/pci/pci_bridge.h" #include "hw/pci/pcie.h" diff --git a/hw/ppc/spapr_drc.c b/hw/ppc/spapr_drc.c index d276db3a72..26a067951c 100644 --- a/hw/ppc/spapr_drc.c +++ b/hw/ppc/spapr_drc.c @@ -300,7 +300,7 @@ static void prop_get_fdt(Object *obj, Visitor *v, const char *name, /* shouldn't ever see an FDT_END_NODE before FDT_BEGIN_NODE */ g_assert(fdt_depth > 0); visit_check_struct(v, &err); - visit_end_struct(v); + visit_end_struct(v, NULL); if (err) { error_propagate(errp, err); return; @@ -323,7 +323,7 @@ static void prop_get_fdt(Object *obj, Visitor *v, const char *name, return; } } - visit_end_list(v); + visit_end_list(v, NULL); break; } default: diff --git a/hw/scsi/scsi-generic.c b/hw/scsi/scsi-generic.c index 6a2d89afba..7a588a7ad4 100644 --- a/hw/scsi/scsi-generic.c +++ b/hw/scsi/scsi-generic.c @@ -225,13 +225,14 @@ static void scsi_read_complete(void * opaque, int ret) if (s->type == TYPE_DISK && r->req.cmd.buf[0] == INQUIRY && r->req.cmd.buf[2] == 0xb0) { - uint32_t max_xfer_len = blk_get_max_transfer_length(s->conf.blk); - if (max_xfer_len) { - stl_be_p(&r->buf[8], max_xfer_len); - /* Also take care of the opt xfer len. */ - if (ldl_be_p(&r->buf[12]) > max_xfer_len) { - stl_be_p(&r->buf[12], max_xfer_len); - } + uint32_t max_transfer = + blk_get_max_transfer(s->conf.blk) / s->blocksize; + + assert(max_transfer); + stl_be_p(&r->buf[8], max_transfer); + /* Also take care of the opt xfer len. */ + if (ldl_be_p(&r->buf[12]) > max_transfer) { + stl_be_p(&r->buf[12], max_transfer); } } scsi_req_data(&r->req, len); diff --git a/hw/virtio/virtio-balloon.c b/hw/virtio/virtio-balloon.c index 557d3f9e0c..1a22e6d993 100644 --- a/hw/virtio/virtio-balloon.c +++ b/hw/virtio/virtio-balloon.c @@ -139,13 +139,13 @@ static void balloon_stats_get_all(Object *obj, Visitor *v, const char *name, } visit_check_struct(v, &err); out_nested: - visit_end_struct(v); + visit_end_struct(v, NULL); if (!err) { visit_check_struct(v, &err); } out_end: - visit_end_struct(v); + visit_end_struct(v, NULL); out: error_propagate(errp, err); } diff --git a/include/block/block.h b/include/block/block.h index 733a8ec2ec..616d8b9f12 100644 --- a/include/block/block.h +++ b/include/block/block.h @@ -226,33 +226,31 @@ int bdrv_reopen_prepare(BDRVReopenState *reopen_state, BlockReopenQueue *queue, Error **errp); void bdrv_reopen_commit(BDRVReopenState *reopen_state); void bdrv_reopen_abort(BDRVReopenState *reopen_state); -int bdrv_read(BlockDriverState *bs, int64_t sector_num, +int bdrv_read(BdrvChild *child, int64_t sector_num, uint8_t *buf, int nb_sectors); -int bdrv_write(BlockDriverState *bs, int64_t sector_num, +int bdrv_write(BdrvChild *child, int64_t sector_num, const uint8_t *buf, int nb_sectors); -int bdrv_pwrite_zeroes(BlockDriverState *bs, int64_t offset, +int bdrv_pwrite_zeroes(BdrvChild *child, int64_t offset, int count, BdrvRequestFlags flags); -int bdrv_make_zero(BlockDriverState *bs, BdrvRequestFlags flags); -int bdrv_pread(BlockDriverState *bs, int64_t offset, - void *buf, int count); -int bdrv_preadv(BlockDriverState *bs, int64_t offset, QEMUIOVector *qiov); -int bdrv_pwrite(BlockDriverState *bs, int64_t offset, - const void *buf, int count); -int bdrv_pwritev(BlockDriverState *bs, int64_t offset, QEMUIOVector *qiov); -int bdrv_pwrite_sync(BlockDriverState *bs, int64_t offset, - const void *buf, int count); -int coroutine_fn bdrv_co_readv(BlockDriverState *bs, int64_t sector_num, - int nb_sectors, QEMUIOVector *qiov); -int coroutine_fn bdrv_co_writev(BlockDriverState *bs, int64_t sector_num, - int nb_sectors, QEMUIOVector *qiov); +int bdrv_make_zero(BdrvChild *child, BdrvRequestFlags flags); +int bdrv_pread(BdrvChild *child, int64_t offset, void *buf, int bytes); +int bdrv_preadv(BdrvChild *child, int64_t offset, QEMUIOVector *qiov); +int bdrv_pwrite(BdrvChild *child, int64_t offset, const void *buf, int bytes); +int bdrv_pwritev(BdrvChild *child, int64_t offset, QEMUIOVector *qiov); +int bdrv_pwrite_sync(BdrvChild *child, int64_t offset, + const void *buf, int count); +int coroutine_fn bdrv_co_readv(BdrvChild *child, int64_t sector_num, + int nb_sectors, QEMUIOVector *qiov); +int coroutine_fn bdrv_co_writev(BdrvChild *child, int64_t sector_num, + int nb_sectors, QEMUIOVector *qiov); /* * Efficiently zero a region of the disk image. Note that this is a regular * I/O request like read or write and should have a reasonable size. This * function is not suitable for zeroing the entire image in a single request * because it may allocate memory for the entire region. */ -int coroutine_fn bdrv_co_pwrite_zeroes(BlockDriverState *bs, int64_t offset, - int count, BdrvRequestFlags flags); +int coroutine_fn bdrv_co_pwrite_zeroes(BdrvChild *child, int64_t offset, + int count, BdrvRequestFlags flags); BlockDriverState *bdrv_find_backing_image(BlockDriverState *bs, const char *backing_file); int bdrv_get_backing_file_depth(BlockDriverState *bs); @@ -310,10 +308,10 @@ BlockDriverState *check_to_replace_node(BlockDriverState *parent_bs, const char *node_name, Error **errp); /* async block I/O */ -BlockAIOCB *bdrv_aio_readv(BlockDriverState *bs, int64_t sector_num, +BlockAIOCB *bdrv_aio_readv(BdrvChild *child, int64_t sector_num, QEMUIOVector *iov, int nb_sectors, BlockCompletionFunc *cb, void *opaque); -BlockAIOCB *bdrv_aio_writev(BlockDriverState *bs, int64_t sector_num, +BlockAIOCB *bdrv_aio_writev(BdrvChild *child, int64_t sector_num, QEMUIOVector *iov, int nb_sectors, BlockCompletionFunc *cb, void *opaque); BlockAIOCB *bdrv_aio_flush(BlockDriverState *bs, @@ -362,8 +360,8 @@ int bdrv_is_allocated(BlockDriverState *bs, int64_t sector_num, int nb_sectors, int bdrv_is_allocated_above(BlockDriverState *top, BlockDriverState *base, int64_t sector_num, int nb_sectors, int *pnum); -int bdrv_is_read_only(BlockDriverState *bs); -int bdrv_is_sg(BlockDriverState *bs); +bool bdrv_is_read_only(BlockDriverState *bs); +bool bdrv_is_sg(BlockDriverState *bs); bool bdrv_is_inserted(BlockDriverState *bs); int bdrv_media_changed(BlockDriverState *bs); void bdrv_lock_medium(BlockDriverState *bs, bool locked); @@ -390,8 +388,8 @@ BlockDriverState *bdrv_first(BdrvNextIterator *it); BlockDriverState *bdrv_next(BdrvNextIterator *it); BlockDriverState *bdrv_next_monitor_owned(BlockDriverState *bs); -int bdrv_is_encrypted(BlockDriverState *bs); -int bdrv_key_required(BlockDriverState *bs); +bool bdrv_is_encrypted(BlockDriverState *bs); +bool bdrv_key_required(BlockDriverState *bs); int bdrv_set_key(BlockDriverState *bs, const char *key); void bdrv_add_key(BlockDriverState *bs, const char *key, Error **errp); int bdrv_query_missing_keys(void); diff --git a/include/block/block_int.h b/include/block/block_int.h index 205715600b..47b9aac71b 100644 --- a/include/block/block_int.h +++ b/include/block/block_int.h @@ -324,30 +324,48 @@ struct BlockDriver { }; typedef struct BlockLimits { - /* maximum number of sectors that can be discarded at once */ - int max_discard; - - /* optimal alignment for discard requests in sectors */ - int64_t discard_alignment; + /* Alignment requirement, in bytes, for offset/length of I/O + * requests. Must be a power of 2 less than INT_MAX; defaults to + * 1 for drivers with modern byte interfaces, and to 512 + * otherwise. */ + uint32_t request_alignment; + + /* maximum number of bytes that can be discarded at once (since it + * is signed, it must be < 2G, if set), should be multiple of + * pdiscard_alignment, but need not be power of 2. May be 0 if no + * inherent 32-bit limit */ + int32_t max_pdiscard; + + /* optimal alignment for discard requests in bytes, must be power + * of 2, less than max_pdiscard if that is set, and multiple of + * bl.request_alignment. May be 0 if bl.request_alignment is good + * enough */ + uint32_t pdiscard_alignment; /* maximum number of bytes that can zeroized at once (since it is - * signed, it must be < 2G, if set) */ + * signed, it must be < 2G, if set), should be multiple of + * pwrite_zeroes_alignment. May be 0 if no inherent 32-bit limit */ int32_t max_pwrite_zeroes; /* optimal alignment for write zeroes requests in bytes, must be - * power of 2, and less than max_pwrite_zeroes if that is set */ + * power of 2, less than max_pwrite_zeroes if that is set, and + * multiple of bl.request_alignment. May be 0 if + * bl.request_alignment is good enough */ uint32_t pwrite_zeroes_alignment; - /* optimal transfer length in sectors */ - int opt_transfer_length; + /* optimal transfer length in bytes (must be power of 2, and + * multiple of bl.request_alignment), or 0 if no preferred size */ + uint32_t opt_transfer; - /* maximal transfer length in sectors */ - int max_transfer_length; + /* maximal transfer length in bytes (need not be power of 2, but + * should be multiple of opt_transfer), or 0 for no 32-bit limit. + * For now, anything larger than INT_MAX is clamped down. */ + uint32_t max_transfer; - /* memory alignment so that no bounce buffer is needed */ + /* memory alignment, in bytes so that no bounce buffer is needed */ size_t min_mem_alignment; - /* memory alignment for bounce buffer */ + /* memory alignment, in bytes, for bounce buffer */ size_t opt_mem_alignment; /* maximum number of iovec elements */ @@ -411,14 +429,15 @@ struct BdrvChild { struct BlockDriverState { int64_t total_sectors; /* if we are reading a disk image, give its size in sectors */ - int read_only; /* if true, the media is read only */ int open_flags; /* flags used to open the file, re-used for re-open */ - int encrypted; /* if true, the media is encrypted */ - int valid_key; /* if true, a valid encryption key has been set */ - int sg; /* if true, the device is a /dev/sg* */ - int copy_on_read; /* if true, copy read backing sectors into image + bool read_only; /* if true, the media is read only */ + bool encrypted; /* if true, the media is encrypted */ + bool valid_key; /* if true, a valid encryption key has been set */ + bool sg; /* if true, the device is a /dev/sg* */ + bool probed; /* if true, format was probed rather than specified */ + + int copy_on_read; /* if nonzero, copy read backing sectors into image. note this is a reference count */ - bool probed; BlockDriver *drv; /* NULL means no media */ void *opaque; @@ -453,8 +472,6 @@ struct BlockDriverState { /* I/O Limits */ BlockLimits bl; - /* Alignment requirement for offset/length of I/O requests */ - unsigned int request_alignment; /* Flags honored during pwrite (so far: BDRV_REQ_FUA) */ unsigned int supported_write_flags; /* Flags honored during pwrite_zeroes (so far: BDRV_REQ_FUA, @@ -546,10 +563,10 @@ extern BlockDriver bdrv_qcow2; */ void bdrv_setup_io_funcs(BlockDriver *bdrv); -int coroutine_fn bdrv_co_preadv(BlockDriverState *bs, +int coroutine_fn bdrv_co_preadv(BdrvChild *child, int64_t offset, unsigned int bytes, QEMUIOVector *qiov, BdrvRequestFlags flags); -int coroutine_fn bdrv_co_pwritev(BlockDriverState *bs, +int coroutine_fn bdrv_co_pwritev(BdrvChild *child, int64_t offset, unsigned int bytes, QEMUIOVector *qiov, BdrvRequestFlags flags); diff --git a/include/block/nbd.h b/include/block/nbd.h index df1f804338..eeda3ebdf7 100644 --- a/include/block/nbd.h +++ b/include/block/nbd.h @@ -77,6 +77,8 @@ enum { /* Maximum size of a single READ/WRITE data buffer */ #define NBD_MAX_BUFFER_SIZE (32 * 1024 * 1024) +#define NBD_MAX_SECTORS (NBD_MAX_BUFFER_SIZE / BDRV_SECTOR_SIZE) + /* Maximum size of an export name. The NBD spec requires 256 and * suggests that servers support up to 4096, but we stick to only the * required size so that we can stack-allocate the names, and because diff --git a/include/hw/virtio/virtio-gpu.h b/include/hw/virtio/virtio-gpu.h index 89f4879f55..3dff0c9a76 100644 --- a/include/hw/virtio/virtio-gpu.h +++ b/include/hw/virtio/virtio-gpu.h @@ -107,7 +107,7 @@ typedef struct VirtIOGPU { bool use_virgl_renderer; bool renderer_inited; - bool renderer_blocked; + int renderer_blocked; QEMUTimer *fence_poll; QEMUTimer *print_stats; diff --git a/include/io/task.h b/include/io/task.h index a993212ad9..df9499aa3a 100644 --- a/include/io/task.h +++ b/include/io/task.h @@ -159,7 +159,7 @@ typedef int (*QIOTaskWorker)(QIOTask *task, * QIOTask *task; * SocketAddress *addrCopy; * - * qapi_copy_SocketAddress(&addrCopy, addr); + * addrCopy = QAPI_CLONE(SocketAddress, addr); * task = qio_task_new(OBJECT(obj), func, opaque, notify); * * qio_task_run_in_thread(task, myobject_listen_worker, diff --git a/include/qapi/clone-visitor.h b/include/qapi/clone-visitor.h new file mode 100644 index 0000000000..b16177e1ee --- /dev/null +++ b/include/qapi/clone-visitor.h @@ -0,0 +1,39 @@ +/* + * Clone Visitor + * + * Copyright (C) 2016 Red Hat, Inc. + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + * + */ + +#ifndef QAPI_CLONE_VISITOR_H +#define QAPI_CLONE_VISITOR_H + +#include "qemu/typedefs.h" +#include "qapi/visitor.h" +#include "qapi-visit.h" + +/* + * The clone visitor is for direct use only by the QAPI_CLONE() macro; + * it requires that the root visit occur on an object, list, or + * alternate, and is not usable directly on built-in QAPI types. + */ +typedef struct QapiCloneVisitor QapiCloneVisitor; + +void *qapi_clone(const void *src, void (*visit_type)(Visitor *, const char *, + void **, Error **)); + +/* + * Deep-clone QAPI object @src of the given @type, and return the result. + * + * Not usable on QAPI scalars (integers, strings, enums), nor on a + * QAPI object that references the 'any' type. Safe when @src is NULL. + */ +#define QAPI_CLONE(type, src) \ + ((type *)qapi_clone(src, \ + (void (*)(Visitor *, const char *, void**, \ + Error **))visit_type_ ## type)) + +#endif diff --git a/include/qapi/dealloc-visitor.h b/include/qapi/dealloc-visitor.h index 45b06b248c..b3e5c85fd8 100644 --- a/include/qapi/dealloc-visitor.h +++ b/include/qapi/dealloc-visitor.h @@ -23,9 +23,6 @@ typedef struct QapiDeallocVisitor QapiDeallocVisitor; * qapi_free_FOO() functions, and is the only visitor designed to work * correctly in the face of a partially-constructed QAPI tree. */ -QapiDeallocVisitor *qapi_dealloc_visitor_new(void); -void qapi_dealloc_visitor_cleanup(QapiDeallocVisitor *d); - -Visitor *qapi_dealloc_get_visitor(QapiDeallocVisitor *v); +Visitor *qapi_dealloc_visitor_new(void); #endif diff --git a/include/qapi/opts-visitor.h b/include/qapi/opts-visitor.h index ae1bf7cf51..6462c96c29 100644 --- a/include/qapi/opts-visitor.h +++ b/include/qapi/opts-visitor.h @@ -35,8 +35,6 @@ typedef struct OptsVisitor OptsVisitor; * QTypes. It also requires a non-null list argument to * visit_start_list(). */ -OptsVisitor *opts_visitor_new(const QemuOpts *opts); -void opts_visitor_cleanup(OptsVisitor *nv); -Visitor *opts_get_visitor(OptsVisitor *nv); +Visitor *opts_visitor_new(const QemuOpts *opts); #endif diff --git a/include/qapi/qmp-input-visitor.h b/include/qapi/qmp-input-visitor.h index b0624d8683..f3ff5f3e98 100644 --- a/include/qapi/qmp-input-visitor.h +++ b/include/qapi/qmp-input-visitor.h @@ -25,10 +25,6 @@ typedef struct QmpInputVisitor QmpInputVisitor; * Set @strict to reject a parse that doesn't consume all keys of a * dictionary; otherwise excess input is ignored. */ -QmpInputVisitor *qmp_input_visitor_new(QObject *obj, bool strict); - -void qmp_input_visitor_cleanup(QmpInputVisitor *v); - -Visitor *qmp_input_get_visitor(QmpInputVisitor *v); +Visitor *qmp_input_visitor_new(QObject *obj, bool strict); #endif diff --git a/include/qapi/qmp-output-visitor.h b/include/qapi/qmp-output-visitor.h index 22667706ab..040fdda142 100644 --- a/include/qapi/qmp-output-visitor.h +++ b/include/qapi/qmp-output-visitor.h @@ -19,10 +19,12 @@ typedef struct QmpOutputVisitor QmpOutputVisitor; -QmpOutputVisitor *qmp_output_visitor_new(void); -void qmp_output_visitor_cleanup(QmpOutputVisitor *v); - -QObject *qmp_output_get_qobject(QmpOutputVisitor *v); -Visitor *qmp_output_get_visitor(QmpOutputVisitor *v); +/* + * Create a new QMP output visitor. + * + * If everything else succeeds, pass @result to visit_complete() to + * collect the result of the visit. + */ +Visitor *qmp_output_visitor_new(QObject **result); #endif diff --git a/include/qapi/qmp/types.h b/include/qapi/qmp/types.h index 7782ec5a60..f21ecf48fe 100644 --- a/include/qapi/qmp/types.h +++ b/include/qapi/qmp/types.h @@ -20,6 +20,5 @@ #include "qapi/qmp/qstring.h" #include "qapi/qmp/qdict.h" #include "qapi/qmp/qlist.h" -#include "qapi/qmp/qjson.h" #endif /* QEMU_OBJECTS_H */ diff --git a/include/qapi/string-input-visitor.h b/include/qapi/string-input-visitor.h index 7b76c2b9e3..33551340e3 100644 --- a/include/qapi/string-input-visitor.h +++ b/include/qapi/string-input-visitor.h @@ -22,9 +22,6 @@ typedef struct StringInputVisitor StringInputVisitor; * QAPI structs, alternates, null, or arbitrary QTypes. It also * requires a non-null list argument to visit_start_list(). */ -StringInputVisitor *string_input_visitor_new(const char *str); -void string_input_visitor_cleanup(StringInputVisitor *v); - -Visitor *string_input_get_visitor(StringInputVisitor *v); +Visitor *string_input_visitor_new(const char *str); #endif diff --git a/include/qapi/string-output-visitor.h b/include/qapi/string-output-visitor.h index e10522a35b..268dfe9986 100644 --- a/include/qapi/string-output-visitor.h +++ b/include/qapi/string-output-visitor.h @@ -18,14 +18,18 @@ typedef struct StringOutputVisitor StringOutputVisitor; /* + * Create a new string output visitor. + * + * Using @human creates output that is a bit easier for humans to read + * (for example, showing integer values in both decimal and hex). + * + * If everything else succeeds, pass @result to visit_complete() to + * collect the result of the visit. + * * The string output visitor does not implement support for visiting * QAPI structs, alternates, null, or arbitrary QTypes. It also * requires a non-null list argument to visit_start_list(). */ -StringOutputVisitor *string_output_visitor_new(bool human); -void string_output_visitor_cleanup(StringOutputVisitor *v); - -char *string_output_get_string(StringOutputVisitor *v); -Visitor *string_output_get_visitor(StringOutputVisitor *v); +Visitor *string_output_visitor_new(bool human, char **result); #endif diff --git a/include/qapi/visitor-impl.h b/include/qapi/visitor-impl.h index 145afd03e7..8bd47ee4bb 100644 --- a/include/qapi/visitor-impl.h +++ b/include/qapi/visitor-impl.h @@ -27,14 +27,18 @@ */ /* - * There are three classes of visitors; setting the class determines + * There are four classes of visitors; setting the class determines * how QAPI enums are visited, as well as what additional restrictions - * can be asserted. + * can be asserted. The values are intentionally chosen so as to + * permit some assertions based on whether a given bit is set (that + * is, some assertions apply to input and clone visitors, some + * assertions apply to output and clone visitors). */ typedef enum VisitorType { - VISITOR_INPUT, - VISITOR_OUTPUT, - VISITOR_DEALLOC, + VISITOR_INPUT = 1, + VISITOR_OUTPUT = 2, + VISITOR_CLONE = 3, + VISITOR_DEALLOC = 4, } VisitorType; struct Visitor @@ -47,7 +51,7 @@ struct Visitor void (*check_struct)(Visitor *v, Error **errp); /* Must be set to visit structs */ - void (*end_struct)(Visitor *v); + void (*end_struct)(Visitor *v, void **obj); /* Must be set; implementations may require @list to be non-null, * but must document it. */ @@ -58,7 +62,7 @@ struct Visitor GenericList *(*next_list)(Visitor *v, GenericList *tail, size_t size); /* Must be set */ - void (*end_list)(Visitor *v); + void (*end_list)(Visitor *v, void **list); /* Must be set by input and dealloc visitors to visit alternates; * optional for output visitors. */ @@ -67,7 +71,7 @@ struct Visitor bool promote_int, Error **errp); /* Optional, needed for dealloc visitor */ - void (*end_alternate)(Visitor *v); + void (*end_alternate)(Visitor *v, void **obj); /* Must be set */ void (*type_int64)(Visitor *v, const char *name, int64_t *obj, @@ -104,6 +108,12 @@ struct Visitor /* Must be set */ VisitorType type; + + /* Must be set for output visitors, optional otherwise. */ + void (*complete)(Visitor *v, void *opaque); + + /* Must be set */ + void (*free)(Visitor *v); }; #endif diff --git a/include/qapi/visitor.h b/include/qapi/visitor.h index 4d12167bdc..fb8f4eb6ec 100644 --- a/include/qapi/visitor.h +++ b/include/qapi/visitor.h @@ -24,19 +24,32 @@ * for doing work at each node of a QAPI graph; it can also be used * for a virtual walk, where there is no actual QAPI C struct. * - * There are three kinds of visitor classes: input visitors (QMP, + * There are four kinds of visitor classes: input visitors (QMP, * string, and QemuOpts) parse an external representation and build * the corresponding QAPI graph, output visitors (QMP and string) take - * a completed QAPI graph and generate an external representation, and - * the dealloc visitor can take a QAPI graph (possibly partially - * constructed) and recursively free its resources. While the dealloc - * and QMP input/output visitors are general, the string and QemuOpts - * visitors have some implementation limitations; see the - * documentation for each visitor for more details on what it + * a completed QAPI graph and generate an external representation, the + * dealloc visitor can take a QAPI graph (possibly partially + * constructed) and recursively free its resources, and the clone + * visitor performs a deep clone of one QAPI object to another. While + * the dealloc and QMP input/output visitors are general, the string, + * QemuOpts, and clone visitors have some implementation limitations; + * see the documentation for each visitor for more details on what it * supports. Also, see visitor-impl.h for the callback contracts * implemented by each visitor, and docs/qapi-code-gen.txt for more * about the QAPI code generator. * + * All of the visitors are created via: + * + * Visitor *subtype_visitor_new(parameters...); + * + * A visitor should be used for exactly one top-level visit_type_FOO() + * or virtual walk; if that is successful, the caller can optionally + * call visit_complete() (for now, useful only for output visits, but + * safe to call on all visits). Then, regardless of success or + * failure, the user should call visit_free() to clean up resources. + * It is okay to free the visitor without completing the visit, if + * some other error is detected in the meantime. + * * All QAPI types have a corresponding function with a signature * roughly compatible with this: * @@ -68,9 +81,9 @@ * * If an error is detected during visit_type_FOO() with an input * visitor, then *@obj will be NULL for pointer types, and left - * unchanged for scalar types. Using an output visitor with an - * incomplete object has undefined behavior (other than a special case - * for visit_type_str() treating NULL like ""), while the dealloc + * unchanged for scalar types. Using an output or clone visitor with + * an incomplete object has undefined behavior (other than a special + * case for visit_type_str() treating NULL like ""), while the dealloc * visitor safely handles incomplete objects. Since input visitors * never produce an incomplete object, such an object is possible only * by manual construction. @@ -90,11 +103,19 @@ * * void qapi_free_FOO(FOO *obj); * - * which behaves like free() in that @obj may be NULL. Because of - * these functions, the dealloc visitor is seldom used directly - * outside of generated code. QAPI types can also inherit from a base - * class; when this happens, a function is generated for easily going - * from the derived type to the base type: + * where behaves like free() in that @obj may be NULL. Such objects + * may also be used with the following macro, provided alongside the + * clone visitor: + * + * Type *QAPI_CLONE(Type, src); + * + * in order to perform a deep clone of @src. Because of the generated + * qapi_free functions and the QAPI_CLONE() macro, the clone and + * dealloc visitor should not be used directly outside of QAPI code. + * + * QAPI types can also inherit from a base class; when this happens, a + * function is generated for easily going from the derived type to the + * base type: * * BASE *qapi_CHILD_base(CHILD *obj); * @@ -105,14 +126,14 @@ * Error *err = NULL; * Visitor *v; * - * v = ...obtain input visitor... + * v = FOO_visitor_new(...); * visit_type_Foo(v, NULL, &f, &err); * if (err) { * ...handle error... * } else { * ...use f... * } - * ...clean up v... + * visit_free(v); * qapi_free_Foo(f); * </example> * @@ -122,7 +143,7 @@ * Error *err = NULL; * Visitor *v; * - * v = ...obtain input visitor... + * v = FOO_visitor_new(...); * visit_type_FooList(v, NULL, &l, &err); * if (err) { * ...handle error... @@ -131,7 +152,7 @@ * ...use l->value... * } * } - * ...clean up v... + * visit_free(v); * qapi_free_FooList(l); * </example> * @@ -141,13 +162,17 @@ * Foo *f = ...obtain populated object... * Error *err = NULL; * Visitor *v; + * Type *result; * - * v = ...obtain output visitor... + * v = FOO_visitor_new(..., &result); * visit_type_Foo(v, NULL, &f, &err); * if (err) { * ...handle error... + * } else { + * visit_complete(v, &result); + * ...use result... * } - * ...clean up v... + * visit_free(v); * </example> * * When visiting a real QAPI struct, this file provides several @@ -173,7 +198,7 @@ * Error *err = NULL; * int value; * - * v = ...obtain visitor... + * v = FOO_visitor_new(...); * visit_start_struct(v, NULL, NULL, 0, &err); * if (err) { * goto out; @@ -193,15 +218,15 @@ * goto outlist; * } * outlist: - * visit_end_list(v); + * visit_end_list(v, NULL); * if (!err) { * visit_check_struct(v, &err); * } * outobj: - * visit_end_struct(v); + * visit_end_struct(v, NULL); * out: * error_propagate(errp, err); - * ...clean up v... + * visit_free(v); * </example> */ @@ -222,6 +247,31 @@ typedef struct GenericAlternate { char padding[]; } GenericAlternate; +/*** Visitor cleanup ***/ + +/* + * Complete the visit, collecting any output. + * + * May only be called only once after a successful top-level + * visit_type_FOO() or visit_end_ITEM(), and marks the end of the + * visit. The @opaque pointer should match the output parameter + * passed to the subtype_visitor_new() used to create an output + * visitor, or NULL for any other visitor. Needed for output + * visitors, but may also be called with other visitors. + */ +void visit_complete(Visitor *v, void *opaque); + +/* + * Free @v and any resources it has tied up. + * + * May be called whether or not the visit has been successfully + * completed, but should not be called until a top-level + * visit_type_FOO() or visit_start_ITEM() has been performed on the + * visitor. Safe if @v is NULL. + */ +void visit_free(Visitor *v); + + /*** Visiting structures ***/ /* @@ -231,9 +281,9 @@ typedef struct GenericAlternate { * container; see the general description of @name above. * * @obj must be non-NULL for a real walk, in which case @size - * determines how much memory an input visitor will allocate into - * *@obj. @obj may also be NULL for a virtual walk, in which case - * @size is ignored. + * determines how much memory an input or clone visitor will allocate + * into *@obj. @obj may also be NULL for a virtual walk, in which + * case @size is ignored. * * @errp obeys typical error usage, and reports failures such as a * member @name is not present, or present but not an object. On @@ -242,8 +292,8 @@ typedef struct GenericAlternate { * After visit_start_struct() succeeds, the caller may visit its * members one after the other, passing the member's name and address * within the struct. Finally, visit_end_struct() needs to be called - * to clean up, even if intermediate visits fail. See the examples - * above. + * with the same @obj to clean up, even if intermediate visits fail. + * See the examples above. * * FIXME Should this be named visit_start_object, since it is also * used for QAPI unions, and maps to JSON objects? @@ -267,12 +317,14 @@ void visit_check_struct(Visitor *v, Error **errp); /* * Complete an object visit started earlier. * + * @obj must match what was passed to the paired visit_start_struct(). + * * Must be called after any successful use of visit_start_struct(), * even if intermediate processing was skipped due to errors, to allow * the backend to release any resources. Destroying the visitor early - * behaves as if this was implicitly called. + * with visit_free() behaves as if this was implicitly called. */ -void visit_end_struct(Visitor *v); +void visit_end_struct(Visitor *v, void **obj); /*** Visiting lists ***/ @@ -284,9 +336,9 @@ void visit_end_struct(Visitor *v); * container; see the general description of @name above. * * @list must be non-NULL for a real walk, in which case @size - * determines how much memory an input visitor will allocate into - * *@list (at least sizeof(GenericList)). Some visitors also allow - * @list to be NULL for a virtual walk, in which case @size is + * determines how much memory an input or clone visitor will allocate + * into *@list (at least sizeof(GenericList)). Some visitors also + * allow @list to be NULL for a virtual walk, in which case @size is * ignored. * * @errp obeys typical error usage, and reports failures such as a @@ -299,8 +351,9 @@ void visit_end_struct(Visitor *v); * visit (where @obj is NULL) uses other means. For each list * element, call the appropriate visit_type_FOO() with name set to * NULL and obj set to the address of the value member of the list - * element. Finally, visit_end_list() needs to be called to clean up, - * even if intermediate visits fail. See the examples above. + * element. Finally, visit_end_list() needs to be called with the + * same @list to clean up, even if intermediate visits fail. See the + * examples above. */ void visit_start_list(Visitor *v, const char *name, GenericList **list, size_t size, Error **errp); @@ -324,12 +377,14 @@ GenericList *visit_next_list(Visitor *v, GenericList *tail, size_t size); /* * Complete a list visit started earlier. * + * @list must match what was passed to the paired visit_start_list(). + * * Must be called after any successful use of visit_start_list(), even * if intermediate processing was skipped due to errors, to allow the * backend to release any resources. Destroying the visitor early - * behaves as if this was implicitly called. + * with visit_free() behaves as if this was implicitly called. */ -void visit_end_list(Visitor *v); +void visit_end_list(Visitor *v, void **list); /*** Visiting alternates ***/ @@ -340,15 +395,16 @@ void visit_end_list(Visitor *v); * @name expresses the relationship of this alternate to its parent * container; see the general description of @name above. * - * @obj must not be NULL. Input visitors use @size to determine how - * much memory to allocate into *@obj, then determine the qtype of the - * next thing to be visited, stored in (*@obj)->type. Other visitors - * will leave @obj unchanged. + * @obj must not be NULL. Input and clone visitors use @size to + * determine how much memory to allocate into *@obj, then determine + * the qtype of the next thing to be visited, stored in (*@obj)->type. + * Other visitors will leave @obj unchanged. * * If @promote_int, treat integers as QTYPE_FLOAT. * - * If successful, this must be paired with visit_end_alternate() to - * clean up, even if visiting the contents of the alternate fails. + * If successful, this must be paired with visit_end_alternate() with + * the same @obj to clean up, even if visiting the contents of the + * alternate fails. */ void visit_start_alternate(Visitor *v, const char *name, GenericAlternate **obj, size_t size, @@ -357,15 +413,15 @@ void visit_start_alternate(Visitor *v, const char *name, /* * Finish visiting an alternate type. * + * @obj must match what was passed to the paired visit_start_alternate(). + * * Must be called after any successful use of visit_start_alternate(), * even if intermediate processing was skipped due to errors, to allow * the backend to release any resources. Destroying the visitor early - * behaves as if this was implicitly called. + * with visit_free() behaves as if this was implicitly called. * - * TODO: Should all the visit_end_* interfaces take obj parameter, so - * that dealloc visitor need not track what was passed in visit_start? */ -void visit_end_alternate(Visitor *v); +void visit_end_alternate(Visitor *v, void **obj); /*** Other helpers ***/ @@ -507,9 +563,10 @@ void visit_type_bool(Visitor *v, const char *name, bool *obj, Error **errp); * @name expresses the relationship of this string to its parent * container; see the general description of @name above. * - * @obj must be non-NULL. Input visitors set *@obj to the value - * (never NULL). Other visitors leave *@obj unchanged, and commonly - * treat NULL like "". + * @obj must be non-NULL. Input and clone visitors set *@obj to the + * value (always using "" rather than NULL for an empty string). + * Other visitors leave *@obj unchanged, and commonly treat NULL like + * "". * * It is safe to cast away const when preparing a (const char *) value * into @obj for use by an output visitor. diff --git a/include/qemu/sockets.h b/include/qemu/sockets.h index 462033a4de..2f3763f781 100644 --- a/include/qemu/sockets.h +++ b/include/qemu/sockets.h @@ -107,10 +107,6 @@ SocketAddress *socket_local_address(int fd, Error **errp); */ SocketAddress *socket_remote_address(int fd, Error **errp); - -void qapi_copy_SocketAddress(SocketAddress **p_dest, - SocketAddress *src); - /** * socket_address_to_string: * @addr: the socket address struct diff --git a/include/qom/object.h b/include/qom/object.h index 2f8ac47c7c..5ecc2d166d 100644 --- a/include/qom/object.h +++ b/include/qom/object.h @@ -901,7 +901,7 @@ GSList *object_class_get_list(const char *implements_type, void object_ref(Object *obj); /** - * qdef_unref: + * object_unref: * @obj: the object * * Decrease the reference count of a object. A object cannot be freed as long diff --git a/include/sysemu/block-backend.h b/include/sysemu/block-backend.h index c04af8ea46..3c3e82f05d 100644 --- a/include/sysemu/block-backend.h +++ b/include/sysemu/block-backend.h @@ -124,6 +124,7 @@ int blk_pwrite_zeroes(BlockBackend *blk, int64_t offset, BlockAIOCB *blk_aio_pwrite_zeroes(BlockBackend *blk, int64_t offset, int count, BdrvRequestFlags flags, BlockCompletionFunc *cb, void *opaque); +int blk_make_zero(BlockBackend *blk, BdrvRequestFlags flags); int blk_pread(BlockBackend *blk, int64_t offset, void *buf, int count); int blk_pwrite(BlockBackend *blk, int64_t offset, const void *buf, int count, BdrvRequestFlags flags); @@ -170,7 +171,7 @@ bool blk_is_available(BlockBackend *blk); void blk_lock_medium(BlockBackend *blk, bool locked); void blk_eject(BlockBackend *blk, bool eject_flag); int blk_get_flags(BlockBackend *blk); -int blk_get_max_transfer_length(BlockBackend *blk); +uint32_t blk_get_max_transfer(BlockBackend *blk); int blk_get_max_iov(BlockBackend *blk); void blk_set_guest_block_size(BlockBackend *blk, int align); void *blk_try_blockalign(BlockBackend *blk, size_t size); diff --git a/include/ui/console.h b/include/ui/console.h index 7c1fdbad6f..2703a3aa5a 100644 --- a/include/ui/console.h +++ b/include/ui/console.h @@ -217,6 +217,7 @@ typedef struct DisplayChangeListenerOps { void (*dpy_gl_scanout)(DisplayChangeListener *dcl, uint32_t backing_id, bool backing_y_0_top, + uint32_t backing_width, uint32_t backing_height, uint32_t x, uint32_t y, uint32_t w, uint32_t h); void (*dpy_gl_update)(DisplayChangeListener *dcl, uint32_t x, uint32_t y, uint32_t w, uint32_t h); @@ -285,6 +286,7 @@ bool dpy_gfx_check_format(QemuConsole *con, void dpy_gl_scanout(QemuConsole *con, uint32_t backing_id, bool backing_y_0_top, + uint32_t backing_width, uint32_t backing_height, uint32_t x, uint32_t y, uint32_t w, uint32_t h); void dpy_gl_update(QemuConsole *con, uint32_t x, uint32_t y, uint32_t w, uint32_t h); diff --git a/include/ui/gtk.h b/include/ui/gtk.h index 2bf60f3ec5..a7644046e4 100644 --- a/include/ui/gtk.h +++ b/include/ui/gtk.h @@ -101,6 +101,7 @@ QEMUGLContext gd_egl_create_context(DisplayChangeListener *dcl, QEMUGLParams *params); void gd_egl_scanout(DisplayChangeListener *dcl, uint32_t backing_id, bool backing_y_0_top, + uint32_t backing_width, uint32_t backing_height, uint32_t x, uint32_t y, uint32_t w, uint32_t h); void gd_egl_scanout_flush(DisplayChangeListener *dcl, diff --git a/include/ui/qemu-spice.h b/include/ui/qemu-spice.h index 57ac91b921..edad5e7bbf 100644 --- a/include/ui/qemu-spice.h +++ b/include/ui/qemu-spice.h @@ -42,6 +42,9 @@ int qemu_spice_set_pw_expire(time_t expires); int qemu_spice_migrate_info(const char *hostname, int port, int tls_port, const char *subject); +#define SPICE_NEEDS_SET_MM_TIME \ + (!defined(SPICE_SERVER_VERSION) || (SPICE_SERVER_VERSION < 0xc06)) + #if SPICE_SERVER_VERSION >= 0x000c02 void qemu_spice_register_ports(void); #else diff --git a/include/ui/sdl2.h b/include/ui/sdl2.h index 3f0b57bb16..683bb6af2e 100644 --- a/include/ui/sdl2.h +++ b/include/ui/sdl2.h @@ -64,6 +64,7 @@ QEMUGLContext sdl2_gl_get_current_context(DisplayChangeListener *dcl); void sdl2_gl_scanout(DisplayChangeListener *dcl, uint32_t backing_id, bool backing_y_0_top, + uint32_t backing_width, uint32_t backing_height, uint32_t x, uint32_t y, uint32_t w, uint32_t h); void sdl2_gl_scanout_flush(DisplayChangeListener *dcl, diff --git a/io/channel-socket.c b/io/channel-socket.c index 6ec87f8cdb..196a4f18f7 100644 --- a/io/channel-socket.c +++ b/io/channel-socket.c @@ -23,6 +23,7 @@ #include "io/channel-socket.h" #include "io/channel-watch.h" #include "trace.h" +#include "qapi/clone-visitor.h" #define SOCKET_MAX_FDS 16 @@ -189,7 +190,7 @@ void qio_channel_socket_connect_async(QIOChannelSocket *ioc, OBJECT(ioc), callback, opaque, destroy); SocketAddress *addrCopy; - qapi_copy_SocketAddress(&addrCopy, addr); + addrCopy = QAPI_CLONE(SocketAddress, addr); /* socket_connect() does a non-blocking connect(), but it * still blocks in DNS lookups, so we must use a thread */ @@ -251,7 +252,7 @@ void qio_channel_socket_listen_async(QIOChannelSocket *ioc, OBJECT(ioc), callback, opaque, destroy); SocketAddress *addrCopy; - qapi_copy_SocketAddress(&addrCopy, addr); + addrCopy = QAPI_CLONE(SocketAddress, addr); /* socket_listen() blocks in DNS lookups, so we must use a thread */ trace_qio_channel_socket_listen_async(ioc, addr); @@ -331,8 +332,8 @@ void qio_channel_socket_dgram_async(QIOChannelSocket *ioc, struct QIOChannelSocketDGramWorkerData *data = g_new0( struct QIOChannelSocketDGramWorkerData, 1); - qapi_copy_SocketAddress(&data->localAddr, localAddr); - qapi_copy_SocketAddress(&data->remoteAddr, remoteAddr); + data->localAddr = QAPI_CLONE(SocketAddress, localAddr); + data->remoteAddr = QAPI_CLONE(SocketAddress, remoteAddr); trace_qio_channel_socket_dgram_async(ioc, localAddr, remoteAddr); qio_task_run_in_thread(task, diff --git a/monitor.c b/monitor.c index 6f960f13a6..ed09cdc261 100644 --- a/monitor.c +++ b/monitor.c @@ -54,11 +54,7 @@ #include "qemu/acl.h" #include "sysemu/tpm.h" #include "qapi/qmp/qerror.h" -#include "qapi/qmp/qint.h" -#include "qapi/qmp/qfloat.h" -#include "qapi/qmp/qlist.h" -#include "qapi/qmp/qbool.h" -#include "qapi/qmp/qstring.h" +#include "qapi/qmp/types.h" #include "qapi/qmp/qjson.h" #include "qapi/qmp/json-streamer.h" #include "qapi/qmp/json-parser.h" diff --git a/net/net.c b/net/net.c index 75bb1770f9..019aaad0fc 100644 --- a/net/net.c +++ b/net/net.c @@ -1024,8 +1024,7 @@ int net_client_init(QemuOpts *opts, int is_netdev, Error **errp) void *object = NULL; Error *err = NULL; int ret = -1; - OptsVisitor *ov = opts_visitor_new(opts); - Visitor *v = opts_get_visitor(ov); + Visitor *v = opts_visitor_new(opts); { /* Parse convenience option format ip6-net=fec0::0[/64] */ @@ -1075,7 +1074,7 @@ int net_client_init(QemuOpts *opts, int is_netdev, Error **errp) } error_propagate(errp, err); - opts_visitor_cleanup(ov); + visit_free(v); return ret; } @@ -1199,7 +1198,7 @@ static void netfilter_print_info(Monitor *mon, NetFilterState *nf) char *str; ObjectProperty *prop; ObjectPropertyIterator iter; - StringOutputVisitor *ov; + Visitor *v; /* generate info str */ object_property_iter_init(&iter, OBJECT(nf)); @@ -1207,11 +1206,10 @@ static void netfilter_print_info(Monitor *mon, NetFilterState *nf) if (!strcmp(prop->name, "type")) { continue; } - ov = string_output_visitor_new(false); - object_property_get(OBJECT(nf), string_output_get_visitor(ov), - prop->name, NULL); - str = string_output_get_string(ov); - string_output_visitor_cleanup(ov); + v = string_output_visitor_new(false, &str); + object_property_get(OBJECT(nf), v, prop->name, NULL); + visit_complete(v, &str); + visit_free(v); monitor_printf(mon, ",%s=%s", prop->name, str); g_free(str); } diff --git a/numa.c b/numa.c index 572712ccf9..cbae430e36 100644 --- a/numa.c +++ b/numa.c @@ -217,9 +217,9 @@ static int parse_numa(void *opaque, QemuOpts *opts, Error **errp) Error *err = NULL; { - OptsVisitor *ov = opts_visitor_new(opts); - visit_type_NumaOptions(opts_get_visitor(ov), NULL, &object, &err); - opts_visitor_cleanup(ov); + Visitor *v = opts_visitor_new(opts); + visit_type_NumaOptions(v, NULL, &object, &err); + visit_free(v); } if (err) { diff --git a/qapi/Makefile.objs b/qapi/Makefile.objs index 2278970690..7ea4aebb00 100644 --- a/qapi/Makefile.objs +++ b/qapi/Makefile.objs @@ -1,6 +1,6 @@ util-obj-y = qapi-visit-core.o qapi-dealloc-visitor.o qmp-input-visitor.o util-obj-y += qmp-output-visitor.o qmp-registry.o qmp-dispatch.o util-obj-y += string-input-visitor.o string-output-visitor.o -util-obj-y += opts-visitor.o +util-obj-y += opts-visitor.o qapi-clone-visitor.o util-obj-y += qmp-event.o util-obj-y += qapi-util.o diff --git a/qapi/block-core.json b/qapi/block-core.json index 98a20d22f4..ac8f5f61d4 100644 --- a/qapi/block-core.json +++ b/qapi/block-core.json @@ -1961,7 +1961,8 @@ # # @config: #optional filename of the configuration file # -# @align: #optional required alignment for requests in bytes +# @align: #optional required alignment for requests in bytes, +# must be power of 2, or 0 for default # # @inject-error: #optional array of error injection descriptions # diff --git a/qapi/opts-visitor.c b/qapi/opts-visitor.c index 4cf1cf885b..1048bbc84e 100644 --- a/qapi/opts-visitor.c +++ b/qapi/opts-visitor.c @@ -180,7 +180,7 @@ opts_check_struct(Visitor *v, Error **errp) static void -opts_end_struct(Visitor *v) +opts_end_struct(Visitor *v, void **obj) { OptsVisitor *ov = to_ov(v); @@ -273,7 +273,7 @@ opts_next_list(Visitor *v, GenericList *tail, size_t size) static void -opts_end_list(Visitor *v) +opts_end_list(Visitor *v, void **obj) { OptsVisitor *ov = to_ov(v); @@ -513,7 +513,20 @@ opts_optional(Visitor *v, const char *name, bool *present) } -OptsVisitor * +static void +opts_free(Visitor *v) +{ + OptsVisitor *ov = to_ov(v); + + if (ov->unprocessed_opts != NULL) { + g_hash_table_destroy(ov->unprocessed_opts); + } + g_free(ov->fake_id_opt); + g_free(ov); +} + + +Visitor * opts_visitor_new(const QemuOpts *opts) { OptsVisitor *ov; @@ -540,26 +553,9 @@ opts_visitor_new(const QemuOpts *opts) * skip some mandatory methods... */ ov->visitor.optional = &opts_optional; + ov->visitor.free = opts_free; ov->opts_root = opts; - return ov; -} - - -void -opts_visitor_cleanup(OptsVisitor *ov) -{ - if (ov->unprocessed_opts != NULL) { - g_hash_table_destroy(ov->unprocessed_opts); - } - g_free(ov->fake_id_opt); - g_free(ov); -} - - -Visitor * -opts_get_visitor(OptsVisitor *ov) -{ return &ov->visitor; } diff --git a/qapi/qapi-clone-visitor.c b/qapi/qapi-clone-visitor.c new file mode 100644 index 0000000000..0bb8216372 --- /dev/null +++ b/qapi/qapi-clone-visitor.c @@ -0,0 +1,182 @@ +/* + * Copy one QAPI object to another + * + * Copyright (C) 2016 Red Hat, Inc. + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + * + */ + +#include "qemu/osdep.h" +#include "qapi/clone-visitor.h" +#include "qapi/visitor-impl.h" +#include "qapi/error.h" + +struct QapiCloneVisitor { + Visitor visitor; + size_t depth; +}; + +static QapiCloneVisitor *to_qcv(Visitor *v) +{ + return container_of(v, QapiCloneVisitor, visitor); +} + +static void qapi_clone_start_struct(Visitor *v, const char *name, void **obj, + size_t size, Error **errp) +{ + QapiCloneVisitor *qcv = to_qcv(v); + + if (!obj) { + assert(qcv->depth); + /* Only possible when visiting an alternate's object + * branch. Nothing further to do here, since the earlier + * visit_start_alternate() already copied memory. */ + return; + } + + *obj = g_memdup(*obj, size); + qcv->depth++; +} + +static void qapi_clone_end(Visitor *v, void **obj) +{ + QapiCloneVisitor *qcv = to_qcv(v); + + assert(qcv->depth); + if (obj) { + qcv->depth--; + } +} + +static void qapi_clone_start_list(Visitor *v, const char *name, + GenericList **listp, size_t size, + Error **errp) +{ + qapi_clone_start_struct(v, name, (void **)listp, size, errp); +} + +static GenericList *qapi_clone_next_list(Visitor *v, GenericList *tail, + size_t size) +{ + QapiCloneVisitor *qcv = to_qcv(v); + + assert(qcv->depth); + /* Unshare the tail of the list cloned by g_memdup() */ + tail->next = g_memdup(tail->next, size); + return tail->next; +} + +static void qapi_clone_start_alternate(Visitor *v, const char *name, + GenericAlternate **obj, size_t size, + bool promote_int, Error **errp) +{ + qapi_clone_start_struct(v, name, (void **)obj, size, errp); +} + +static void qapi_clone_type_int64(Visitor *v, const char *name, int64_t *obj, + Error **errp) +{ + QapiCloneVisitor *qcv = to_qcv(v); + + assert(qcv->depth); + /* Value was already cloned by g_memdup() */ +} + +static void qapi_clone_type_uint64(Visitor *v, const char *name, + uint64_t *obj, Error **errp) +{ + QapiCloneVisitor *qcv = to_qcv(v); + + assert(qcv->depth); + /* Value was already cloned by g_memdup() */ +} + +static void qapi_clone_type_bool(Visitor *v, const char *name, bool *obj, + Error **errp) +{ + QapiCloneVisitor *qcv = to_qcv(v); + + assert(qcv->depth); + /* Value was already cloned by g_memdup() */ +} + +static void qapi_clone_type_str(Visitor *v, const char *name, char **obj, + Error **errp) +{ + QapiCloneVisitor *qcv = to_qcv(v); + + assert(qcv->depth); + /* + * Pointer was already cloned by g_memdup; create fresh copy. + * Note that as long as qmp-output-visitor accepts NULL instead of + * "", then we must do likewise. However, we want to obey the + * input visitor semantics of never producing NULL when the empty + * string is intended. + */ + *obj = g_strdup(*obj ?: ""); +} + +static void qapi_clone_type_number(Visitor *v, const char *name, double *obj, + Error **errp) +{ + QapiCloneVisitor *qcv = to_qcv(v); + + assert(qcv->depth); + /* Value was already cloned by g_memdup() */ +} + +static void qapi_clone_type_null(Visitor *v, const char *name, Error **errp) +{ + QapiCloneVisitor *qcv = to_qcv(v); + + assert(qcv->depth); + /* Nothing to do */ +} + +static void qapi_clone_free(Visitor *v) +{ + g_free(v); +} + +static Visitor *qapi_clone_visitor_new(void) +{ + QapiCloneVisitor *v; + + v = g_malloc0(sizeof(*v)); + + v->visitor.type = VISITOR_CLONE; + v->visitor.start_struct = qapi_clone_start_struct; + v->visitor.end_struct = qapi_clone_end; + v->visitor.start_list = qapi_clone_start_list; + v->visitor.next_list = qapi_clone_next_list; + v->visitor.end_list = qapi_clone_end; + v->visitor.start_alternate = qapi_clone_start_alternate; + v->visitor.end_alternate = qapi_clone_end; + v->visitor.type_int64 = qapi_clone_type_int64; + v->visitor.type_uint64 = qapi_clone_type_uint64; + v->visitor.type_bool = qapi_clone_type_bool; + v->visitor.type_str = qapi_clone_type_str; + v->visitor.type_number = qapi_clone_type_number; + v->visitor.type_null = qapi_clone_type_null; + v->visitor.free = qapi_clone_free; + + return &v->visitor; +} + +void *qapi_clone(const void *src, void (*visit_type)(Visitor *, const char *, + void **, Error **)) +{ + Visitor *v; + void *dst = (void *) src; /* Cast away const */ + + if (!src) { + return NULL; + } + + v = qapi_clone_visitor_new(); + visit_type(v, NULL, &dst, &error_abort); + visit_free(v); + return dst; +} diff --git a/qapi/qapi-dealloc-visitor.c b/qapi/qapi-dealloc-visitor.c index cd68b55a1a..e39457bc79 100644 --- a/qapi/qapi-dealloc-visitor.c +++ b/qapi/qapi-dealloc-visitor.c @@ -19,53 +19,18 @@ #include "qapi/qmp/types.h" #include "qapi/visitor-impl.h" -typedef struct StackEntry -{ - void *value; - QTAILQ_ENTRY(StackEntry) node; -} StackEntry; - struct QapiDeallocVisitor { Visitor visitor; - QTAILQ_HEAD(, StackEntry) stack; }; -static QapiDeallocVisitor *to_qov(Visitor *v) -{ - return container_of(v, QapiDeallocVisitor, visitor); -} - -static void qapi_dealloc_push(QapiDeallocVisitor *qov, void *value) -{ - StackEntry *e = g_malloc0(sizeof(*e)); - - e->value = value; - - QTAILQ_INSERT_HEAD(&qov->stack, e, node); -} - -static void *qapi_dealloc_pop(QapiDeallocVisitor *qov) -{ - StackEntry *e = QTAILQ_FIRST(&qov->stack); - QObject *value; - QTAILQ_REMOVE(&qov->stack, e, node); - value = e->value; - g_free(e); - return value; -} - static void qapi_dealloc_start_struct(Visitor *v, const char *name, void **obj, size_t unused, Error **errp) { - QapiDeallocVisitor *qov = to_qov(v); - qapi_dealloc_push(qov, obj); } -static void qapi_dealloc_end_struct(Visitor *v) +static void qapi_dealloc_end_struct(Visitor *v, void **obj) { - QapiDeallocVisitor *qov = to_qov(v); - void **obj = qapi_dealloc_pop(qov); if (obj) { g_free(*obj); } @@ -75,14 +40,10 @@ static void qapi_dealloc_start_alternate(Visitor *v, const char *name, GenericAlternate **obj, size_t size, bool promote_int, Error **errp) { - QapiDeallocVisitor *qov = to_qov(v); - qapi_dealloc_push(qov, obj); } -static void qapi_dealloc_end_alternate(Visitor *v) +static void qapi_dealloc_end_alternate(Visitor *v, void **obj) { - QapiDeallocVisitor *qov = to_qov(v); - void **obj = qapi_dealloc_pop(qov); if (obj) { g_free(*obj); } @@ -102,7 +63,7 @@ static GenericList *qapi_dealloc_next_list(Visitor *v, GenericList *tail, return next; } -static void qapi_dealloc_end_list(Visitor *v) +static void qapi_dealloc_end_list(Visitor *v, void **obj) { } @@ -146,17 +107,12 @@ static void qapi_dealloc_type_null(Visitor *v, const char *name, Error **errp) { } -Visitor *qapi_dealloc_get_visitor(QapiDeallocVisitor *v) +static void qapi_dealloc_free(Visitor *v) { - return &v->visitor; + g_free(container_of(v, QapiDeallocVisitor, visitor)); } -void qapi_dealloc_visitor_cleanup(QapiDeallocVisitor *v) -{ - g_free(v); -} - -QapiDeallocVisitor *qapi_dealloc_visitor_new(void) +Visitor *qapi_dealloc_visitor_new(void) { QapiDeallocVisitor *v; @@ -177,8 +133,7 @@ QapiDeallocVisitor *qapi_dealloc_visitor_new(void) v->visitor.type_number = qapi_dealloc_type_number; v->visitor.type_any = qapi_dealloc_type_anything; v->visitor.type_null = qapi_dealloc_type_null; + v->visitor.free = qapi_dealloc_free; - QTAILQ_INIT(&v->stack); - - return v; + return &v->visitor; } diff --git a/qapi/qapi-visit-core.c b/qapi/qapi-visit-core.c index eada4676a2..55f5876dc0 100644 --- a/qapi/qapi-visit-core.c +++ b/qapi/qapi-visit-core.c @@ -20,6 +20,21 @@ #include "qapi/visitor.h" #include "qapi/visitor-impl.h" +void visit_complete(Visitor *v, void *opaque) +{ + assert(v->type != VISITOR_OUTPUT || v->complete); + if (v->complete) { + v->complete(v, opaque); + } +} + +void visit_free(Visitor *v) +{ + if (v) { + v->free(v); + } +} + void visit_start_struct(Visitor *v, const char *name, void **obj, size_t size, Error **errp) { @@ -27,10 +42,10 @@ void visit_start_struct(Visitor *v, const char *name, void **obj, if (obj) { assert(size); - assert(v->type != VISITOR_OUTPUT || *obj); + assert(!(v->type & VISITOR_OUTPUT) || *obj); } v->start_struct(v, name, obj, size, &err); - if (obj && v->type == VISITOR_INPUT) { + if (obj && (v->type & VISITOR_INPUT)) { assert(!err != !*obj); } error_propagate(errp, err); @@ -43,9 +58,9 @@ void visit_check_struct(Visitor *v, Error **errp) } } -void visit_end_struct(Visitor *v) +void visit_end_struct(Visitor *v, void **obj) { - v->end_struct(v); + v->end_struct(v, obj); } void visit_start_list(Visitor *v, const char *name, GenericList **list, @@ -55,7 +70,7 @@ void visit_start_list(Visitor *v, const char *name, GenericList **list, assert(!list || size >= sizeof(GenericList)); v->start_list(v, name, list, size, &err); - if (list && v->type == VISITOR_INPUT) { + if (list && (v->type & VISITOR_INPUT)) { assert(!(err && *list)); } error_propagate(errp, err); @@ -67,9 +82,9 @@ GenericList *visit_next_list(Visitor *v, GenericList *tail, size_t size) return v->next_list(v, tail, size); } -void visit_end_list(Visitor *v) +void visit_end_list(Visitor *v, void **obj) { - v->end_list(v); + v->end_list(v, obj); } void visit_start_alternate(Visitor *v, const char *name, @@ -79,20 +94,20 @@ void visit_start_alternate(Visitor *v, const char *name, Error *err = NULL; assert(obj && size >= sizeof(GenericAlternate)); - assert(v->type != VISITOR_OUTPUT || *obj); + assert(!(v->type & VISITOR_OUTPUT) || *obj); if (v->start_alternate) { v->start_alternate(v, name, obj, size, promote_int, &err); } - if (v->type == VISITOR_INPUT) { + if (v->type & VISITOR_INPUT) { assert(v->start_alternate && !err != !*obj); } error_propagate(errp, err); } -void visit_end_alternate(Visitor *v) +void visit_end_alternate(Visitor *v, void **obj) { if (v->end_alternate) { - v->end_alternate(v); + v->end_alternate(v, obj); } } @@ -235,10 +250,10 @@ void visit_type_str(Visitor *v, const char *name, char **obj, Error **errp) assert(obj); /* TODO: Fix callers to not pass NULL when they mean "", so that we * can enable: - assert(v->type != VISITOR_OUTPUT || *obj); + assert(!(v->type & VISITOR_OUTPUT) || *obj); */ v->type_str(v, name, obj, &err); - if (v->type == VISITOR_INPUT) { + if (v->type & VISITOR_INPUT) { assert(!err != !*obj); } error_propagate(errp, err); @@ -320,9 +335,19 @@ void visit_type_enum(Visitor *v, const char *name, int *obj, const char *const strings[], Error **errp) { assert(obj && strings); - if (v->type == VISITOR_INPUT) { + switch (v->type) { + case VISITOR_INPUT: input_type_enum(v, name, obj, strings, errp); - } else if (v->type == VISITOR_OUTPUT) { + break; + case VISITOR_OUTPUT: output_type_enum(v, name, obj, strings, errp); + break; + case VISITOR_CLONE: + /* nothing further to do, scalar value was already copied by + * g_memdup() during visit_start_*() */ + break; + case VISITOR_DEALLOC: + /* nothing to deallocate for a scalar */ + break; } } diff --git a/qapi/qmp-dispatch.c b/qapi/qmp-dispatch.c index 08faf853ac..505eb418ac 100644 --- a/qapi/qmp-dispatch.c +++ b/qapi/qmp-dispatch.c @@ -16,6 +16,7 @@ #include "qapi/qmp/types.h" #include "qapi/qmp/dispatch.h" #include "qapi/qmp/json-parser.h" +#include "qapi/qmp/qjson.h" #include "qapi-types.h" #include "qapi/qmp/qerror.h" diff --git a/qapi/qmp-input-visitor.c b/qapi/qmp-input-visitor.c index aea90a1378..21edb3928e 100644 --- a/qapi/qmp-input-visitor.c +++ b/qapi/qmp-input-visitor.c @@ -26,6 +26,7 @@ typedef struct StackObject { QObject *obj; /* Object being visited */ + void *qapi; /* sanity check that caller uses same pointer */ GHashTable *h; /* If obj is dict: unvisited keys */ const QListEntry *entry; /* If obj is list: unvisited tail */ @@ -96,7 +97,7 @@ static void qdict_add_key(const char *key, QObject *obj, void *opaque) } static const QListEntry *qmp_input_push(QmpInputVisitor *qiv, QObject *obj, - Error **errp) + void *qapi, Error **errp) { GHashTable *h; StackObject *tos = &qiv->stack[qiv->nb_stack]; @@ -108,6 +109,7 @@ static const QListEntry *qmp_input_push(QmpInputVisitor *qiv, QObject *obj, } tos->obj = obj; + tos->qapi = qapi; assert(!tos->h); assert(!tos->entry); @@ -145,12 +147,13 @@ static void qmp_input_check_struct(Visitor *v, Error **errp) } } -static void qmp_input_pop(Visitor *v) +static void qmp_input_pop(Visitor *v, void **obj) { QmpInputVisitor *qiv = to_qiv(v); StackObject *tos = &qiv->stack[qiv->nb_stack - 1]; assert(qiv->nb_stack > 0); + assert(tos->qapi == obj); if (qiv->strict) { GHashTable * const top_ht = qiv->stack[qiv->nb_stack - 1].h; @@ -179,7 +182,7 @@ static void qmp_input_start_struct(Visitor *v, const char *name, void **obj, return; } - qmp_input_push(qiv, qobj, &err); + qmp_input_push(qiv, qobj, obj, &err); if (err) { error_propagate(errp, err); return; @@ -207,7 +210,7 @@ static void qmp_input_start_list(Visitor *v, const char *name, return; } - entry = qmp_input_push(qiv, qobj, errp); + entry = qmp_input_push(qiv, qobj, list, errp); if (list) { if (entry) { *list = g_malloc0(size); @@ -370,18 +373,15 @@ static void qmp_input_optional(Visitor *v, const char *name, bool *present) *present = true; } -Visitor *qmp_input_get_visitor(QmpInputVisitor *v) +static void qmp_input_free(Visitor *v) { - return &v->visitor; -} + QmpInputVisitor *qiv = to_qiv(v); -void qmp_input_visitor_cleanup(QmpInputVisitor *v) -{ - qobject_decref(v->root); - g_free(v); + qobject_decref(qiv->root); + g_free(qiv); } -QmpInputVisitor *qmp_input_visitor_new(QObject *obj, bool strict) +Visitor *qmp_input_visitor_new(QObject *obj, bool strict) { QmpInputVisitor *v; @@ -403,10 +403,11 @@ QmpInputVisitor *qmp_input_visitor_new(QObject *obj, bool strict) v->visitor.type_any = qmp_input_type_any; v->visitor.type_null = qmp_input_type_null; v->visitor.optional = qmp_input_optional; + v->visitor.free = qmp_input_free; v->strict = strict; v->root = obj; qobject_incref(obj); - return v; + return &v->visitor; } diff --git a/qapi/qmp-output-visitor.c b/qapi/qmp-output-visitor.c index 4d3cf78333..0452056d42 100644 --- a/qapi/qmp-output-visitor.c +++ b/qapi/qmp-output-visitor.c @@ -22,6 +22,7 @@ typedef struct QStackEntry { QObject *value; + void *qapi; /* sanity check that caller uses same pointer */ QTAILQ_ENTRY(QStackEntry) node; } QStackEntry; @@ -32,11 +33,13 @@ struct QmpOutputVisitor Visitor visitor; QStack stack; /* Stack of containers that haven't yet been finished */ QObject *root; /* Root of the output visit */ + QObject **result; /* User's storage location for result */ }; #define qmp_output_add(qov, name, value) \ qmp_output_add_obj(qov, name, QOBJECT(value)) -#define qmp_output_push(qov, value) qmp_output_push_obj(qov, QOBJECT(value)) +#define qmp_output_push(qov, value, qapi) \ + qmp_output_push_obj(qov, QOBJECT(value), qapi) static QmpOutputVisitor *to_qov(Visitor *v) { @@ -44,23 +47,26 @@ static QmpOutputVisitor *to_qov(Visitor *v) } /* Push @value onto the stack of current QObjects being built */ -static void qmp_output_push_obj(QmpOutputVisitor *qov, QObject *value) +static void qmp_output_push_obj(QmpOutputVisitor *qov, QObject *value, + void *qapi) { QStackEntry *e = g_malloc0(sizeof(*e)); assert(qov->root); assert(value); e->value = value; + e->qapi = qapi; QTAILQ_INSERT_HEAD(&qov->stack, e, node); } /* Pop a value off the stack of QObjects being built, and return it. */ -static QObject *qmp_output_pop(QmpOutputVisitor *qov) +static QObject *qmp_output_pop(QmpOutputVisitor *qov, void *qapi) { QStackEntry *e = QTAILQ_FIRST(&qov->stack); QObject *value; assert(e); + assert(e->qapi == qapi); QTAILQ_REMOVE(&qov->stack, e, node); value = e->value; assert(value); @@ -104,13 +110,13 @@ static void qmp_output_start_struct(Visitor *v, const char *name, void **obj, QDict *dict = qdict_new(); qmp_output_add(qov, name, dict); - qmp_output_push(qov, dict); + qmp_output_push(qov, dict, obj); } -static void qmp_output_end_struct(Visitor *v) +static void qmp_output_end_struct(Visitor *v, void **obj) { QmpOutputVisitor *qov = to_qov(v); - QObject *value = qmp_output_pop(qov); + QObject *value = qmp_output_pop(qov, obj); assert(qobject_type(value) == QTYPE_QDICT); } @@ -122,7 +128,7 @@ static void qmp_output_start_list(Visitor *v, const char *name, QList *list = qlist_new(); qmp_output_add(qov, name, list); - qmp_output_push(qov, list); + qmp_output_push(qov, list, listp); } static GenericList *qmp_output_next_list(Visitor *v, GenericList *tail, @@ -131,10 +137,10 @@ static GenericList *qmp_output_next_list(Visitor *v, GenericList *tail, return tail->next; } -static void qmp_output_end_list(Visitor *v) +static void qmp_output_end_list(Visitor *v, void **obj) { QmpOutputVisitor *qov = to_qov(v); - QObject *value = qmp_output_pop(qov); + QObject *value = qmp_output_pop(qov, obj); assert(qobject_type(value) == QTYPE_QLIST); } @@ -195,34 +201,34 @@ static void qmp_output_type_null(Visitor *v, const char *name, Error **errp) /* Finish building, and return the root object. * The root object is never null. The caller becomes the object's * owner, and should use qobject_decref() when done with it. */ -QObject *qmp_output_get_qobject(QmpOutputVisitor *qov) +static void qmp_output_complete(Visitor *v, void *opaque) { + QmpOutputVisitor *qov = to_qov(v); + /* A visit must have occurred, with each start paired with end. */ assert(qov->root && QTAILQ_EMPTY(&qov->stack)); + assert(opaque == qov->result); qobject_incref(qov->root); - return qov->root; -} - -Visitor *qmp_output_get_visitor(QmpOutputVisitor *v) -{ - return &v->visitor; + *qov->result = qov->root; + qov->result = NULL; } -void qmp_output_visitor_cleanup(QmpOutputVisitor *v) +static void qmp_output_free(Visitor *v) { + QmpOutputVisitor *qov = to_qov(v); QStackEntry *e, *tmp; - QTAILQ_FOREACH_SAFE(e, &v->stack, node, tmp) { - QTAILQ_REMOVE(&v->stack, e, node); + QTAILQ_FOREACH_SAFE(e, &qov->stack, node, tmp) { + QTAILQ_REMOVE(&qov->stack, e, node); g_free(e); } - qobject_decref(v->root); - g_free(v); + qobject_decref(qov->root); + g_free(qov); } -QmpOutputVisitor *qmp_output_visitor_new(void) +Visitor *qmp_output_visitor_new(QObject **result) { QmpOutputVisitor *v; @@ -241,8 +247,12 @@ QmpOutputVisitor *qmp_output_visitor_new(void) v->visitor.type_number = qmp_output_type_number; v->visitor.type_any = qmp_output_type_any; v->visitor.type_null = qmp_output_type_null; + v->visitor.complete = qmp_output_complete; + v->visitor.free = qmp_output_free; QTAILQ_INIT(&v->stack); + *result = NULL; + v->result = result; - return v; + return &v->visitor; } diff --git a/qapi/string-input-visitor.c b/qapi/string-input-visitor.c index 0690abb7de..8dfa561252 100644 --- a/qapi/string-input-visitor.c +++ b/qapi/string-input-visitor.c @@ -30,6 +30,7 @@ struct StringInputVisitor int64_t cur; const char *string; + void *list; /* Only needed for sanity checking the caller */ }; static StringInputVisitor *to_siv(Visitor *v) @@ -120,6 +121,7 @@ start_list(Visitor *v, const char *name, GenericList **list, size_t size, /* We don't support visits without a list */ assert(list); + siv->list = list; if (parse_str(siv, name, errp) < 0) { *list = NULL; @@ -168,8 +170,11 @@ static GenericList *next_list(Visitor *v, GenericList *tail, size_t size) return tail->next; } -static void end_list(Visitor *v) +static void end_list(Visitor *v, void **obj) { + StringInputVisitor *siv = to_siv(v); + + assert(siv->list == obj); } static void parse_type_int64(Visitor *v, const char *name, int64_t *obj, @@ -321,19 +326,16 @@ static void parse_optional(Visitor *v, const char *name, bool *present) *present = true; } -Visitor *string_input_get_visitor(StringInputVisitor *v) +static void string_input_free(Visitor *v) { - return &v->visitor; -} + StringInputVisitor *siv = to_siv(v); -void string_input_visitor_cleanup(StringInputVisitor *v) -{ - g_list_foreach(v->ranges, free_range, NULL); - g_list_free(v->ranges); - g_free(v); + g_list_foreach(siv->ranges, free_range, NULL); + g_list_free(siv->ranges); + g_free(siv); } -StringInputVisitor *string_input_visitor_new(const char *str) +Visitor *string_input_visitor_new(const char *str) { StringInputVisitor *v; @@ -350,7 +352,8 @@ StringInputVisitor *string_input_visitor_new(const char *str) v->visitor.next_list = next_list; v->visitor.end_list = end_list; v->visitor.optional = parse_optional; + v->visitor.free = string_input_free; v->string = str; - return v; + return &v->visitor; } diff --git a/qapi/string-output-visitor.c b/qapi/string-output-visitor.c index c6f01f9f9c..94ac8211d1 100644 --- a/qapi/string-output-visitor.c +++ b/qapi/string-output-visitor.c @@ -58,12 +58,14 @@ struct StringOutputVisitor Visitor visitor; bool human; GString *string; + char **result; ListMode list_mode; union { int64_t s; uint64_t u; } range_start, range_end; GList *ranges; + void *list; /* Only needed for sanity checking the caller */ }; static StringOutputVisitor *to_sov(Visitor *v) @@ -274,6 +276,7 @@ start_list(Visitor *v, const char *name, GenericList **list, size_t size, assert(sov->list_mode == LM_NONE); /* We don't support visits without a list */ assert(list); + sov->list = list; /* List handling is only needed if there are at least two elements */ if (*list && (*list)->next) { sov->list_mode = LM_STARTED; @@ -291,10 +294,11 @@ static GenericList *next_list(Visitor *v, GenericList *tail, size_t size) return ret; } -static void end_list(Visitor *v) +static void end_list(Visitor *v, void **obj) { StringOutputVisitor *sov = to_sov(v); + assert(sov->list == obj); assert(sov->list_mode == LM_STARTED || sov->list_mode == LM_END || sov->list_mode == LM_NONE || @@ -302,16 +306,13 @@ static void end_list(Visitor *v) sov->list_mode = LM_NONE; } -char *string_output_get_string(StringOutputVisitor *sov) +static void string_output_complete(Visitor *v, void *opaque) { - char *string = g_string_free(sov->string, false); - sov->string = NULL; - return string; -} + StringOutputVisitor *sov = to_sov(v); -Visitor *string_output_get_visitor(StringOutputVisitor *sov) -{ - return &sov->visitor; + assert(opaque == sov->result); + *sov->result = g_string_free(sov->string, false); + sov->string = NULL; } static void free_range(void *range, void *dummy) @@ -319,8 +320,10 @@ static void free_range(void *range, void *dummy) g_free(range); } -void string_output_visitor_cleanup(StringOutputVisitor *sov) +static void string_output_free(Visitor *v) { + StringOutputVisitor *sov = to_sov(v); + if (sov->string) { g_string_free(sov->string, true); } @@ -330,7 +333,7 @@ void string_output_visitor_cleanup(StringOutputVisitor *sov) g_free(sov); } -StringOutputVisitor *string_output_visitor_new(bool human) +Visitor *string_output_visitor_new(bool human, char **result) { StringOutputVisitor *v; @@ -338,6 +341,9 @@ StringOutputVisitor *string_output_visitor_new(bool human) v->string = g_string_new(NULL); v->human = human; + v->result = result; + *result = NULL; + v->visitor.type = VISITOR_OUTPUT; v->visitor.type_int64 = print_type_int64; v->visitor.type_uint64 = print_type_uint64; @@ -348,6 +354,8 @@ StringOutputVisitor *string_output_visitor_new(bool human) v->visitor.start_list = start_list; v->visitor.next_list = next_list; v->visitor.end_list = end_list; + v->visitor.complete = string_output_complete; + v->visitor.free = string_output_free; - return v; + return &v->visitor; } diff --git a/qemu-char.c b/qemu-char.c index b73969ddbd..0698b98750 100644 --- a/qemu-char.c +++ b/qemu-char.c @@ -32,8 +32,7 @@ #include "sysemu/char.h" #include "hw/usb.h" #include "qmp-commands.h" -#include "qapi/qmp-input-visitor.h" -#include "qapi/qmp-output-visitor.h" +#include "qapi/clone-visitor.h" #include "qapi-visit.h" #include "qemu/base64.h" #include "io/channel-socket.h" @@ -4389,7 +4388,7 @@ static CharDriverState *qmp_chardev_open_socket(const char *id, } } - qapi_copy_SocketAddress(&s->addr, sock->addr); + s->addr = QAPI_CLONE(SocketAddress, sock->addr); chr->opaque = s; chr->chr_write = tcp_chr_write; diff --git a/qemu-img.c b/qemu-img.c index 3322a1e5fc..ea5970bdd3 100644 --- a/qemu-img.c +++ b/qemu-img.c @@ -490,18 +490,17 @@ fail: static void dump_json_image_check(ImageCheck *check, bool quiet) { - Error *local_err = NULL; QString *str; - QmpOutputVisitor *ov = qmp_output_visitor_new(); QObject *obj; - visit_type_ImageCheck(qmp_output_get_visitor(ov), NULL, &check, - &local_err); - obj = qmp_output_get_qobject(ov); + Visitor *v = qmp_output_visitor_new(&obj); + + visit_type_ImageCheck(v, NULL, &check, &error_abort); + visit_complete(v, &obj); str = qobject_to_json_pretty(obj); assert(str != NULL); qprintf(quiet, "%s\n", qstring_get_str(str)); qobject_decref(obj); - qmp_output_visitor_cleanup(ov); + visit_free(v); QDECREF(str); } @@ -1648,7 +1647,7 @@ static int convert_do_copy(ImgConvertState *s) if (!s->has_zero_init && !s->target_has_backing && bdrv_can_write_zeroes_with_unmap(blk_bs(s->target))) { - ret = bdrv_make_zero(blk_bs(s->target), BDRV_REQ_MAY_UNMAP); + ret = blk_make_zero(s->target, BDRV_REQ_MAY_UNMAP); if (ret == 0) { s->has_zero_init = true; } @@ -2085,13 +2084,14 @@ static int img_convert(int argc, char **argv) } out_bs = blk_bs(out_blk); - /* increase bufsectors from the default 4096 (2M) if opt_transfer_length + /* increase bufsectors from the default 4096 (2M) if opt_transfer * or discard_alignment of the out_bs is greater. Limit to 32768 (16MB) * as maximum. */ bufsectors = MIN(32768, - MAX(bufsectors, MAX(out_bs->bl.opt_transfer_length, - out_bs->bl.discard_alignment)) - ); + MAX(bufsectors, + MAX(out_bs->bl.opt_transfer >> BDRV_SECTOR_BITS, + out_bs->bl.pdiscard_alignment >> + BDRV_SECTOR_BITS))); if (skip_create) { int64_t output_sectors = blk_nb_sectors(out_blk); @@ -2181,34 +2181,33 @@ static void dump_snapshots(BlockDriverState *bs) static void dump_json_image_info_list(ImageInfoList *list) { - Error *local_err = NULL; QString *str; - QmpOutputVisitor *ov = qmp_output_visitor_new(); QObject *obj; - visit_type_ImageInfoList(qmp_output_get_visitor(ov), NULL, &list, - &local_err); - obj = qmp_output_get_qobject(ov); + Visitor *v = qmp_output_visitor_new(&obj); + + visit_type_ImageInfoList(v, NULL, &list, &error_abort); + visit_complete(v, &obj); str = qobject_to_json_pretty(obj); assert(str != NULL); printf("%s\n", qstring_get_str(str)); qobject_decref(obj); - qmp_output_visitor_cleanup(ov); + visit_free(v); QDECREF(str); } static void dump_json_image_info(ImageInfo *info) { - Error *local_err = NULL; QString *str; - QmpOutputVisitor *ov = qmp_output_visitor_new(); QObject *obj; - visit_type_ImageInfo(qmp_output_get_visitor(ov), NULL, &info, &local_err); - obj = qmp_output_get_qobject(ov); + Visitor *v = qmp_output_visitor_new(&obj); + + visit_type_ImageInfo(v, NULL, &info, &error_abort); + visit_complete(v, &obj); str = qobject_to_json_pretty(obj); assert(str != NULL); printf("%s\n", qstring_get_str(str)); qobject_decref(obj); - qmp_output_visitor_cleanup(ov); + visit_free(v); QDECREF(str); } @@ -3866,7 +3865,7 @@ int main(int argc, char **argv) return 0; } argv += optind; - optind = 1; + optind = 0; if (!trace_init_backends()) { exit(1); diff --git a/qmp.c b/qmp.c index 7df6543871..b6d531ebe2 100644 --- a/qmp.c +++ b/qmp.c @@ -655,7 +655,7 @@ void qmp_object_add(const char *type, const char *id, bool has_props, QObject *props, Error **errp) { const QDict *pdict = NULL; - QmpInputVisitor *qiv; + Visitor *v; Object *obj; if (props) { @@ -666,10 +666,9 @@ void qmp_object_add(const char *type, const char *id, } } - qiv = qmp_input_visitor_new(props, true); - obj = user_creatable_add_type(type, id, pdict, - qmp_input_get_visitor(qiv), errp); - qmp_input_visitor_cleanup(qiv); + v = qmp_input_visitor_new(props, true); + obj = user_creatable_add_type(type, id, pdict, v, errp); + visit_free(v); if (obj) { object_unref(obj); } diff --git a/qobject/json-parser.c b/qobject/json-parser.c index 67ed727318..c18e48ab94 100644 --- a/qobject/json-parser.c +++ b/qobject/json-parser.c @@ -14,12 +14,7 @@ #include "qemu/osdep.h" #include "qapi/error.h" #include "qemu-common.h" -#include "qapi/qmp/qstring.h" -#include "qapi/qmp/qint.h" -#include "qapi/qmp/qdict.h" -#include "qapi/qmp/qlist.h" -#include "qapi/qmp/qfloat.h" -#include "qapi/qmp/qbool.h" +#include "qapi/qmp/types.h" #include "qapi/qmp/json-parser.h" #include "qapi/qmp/json-lexer.h" #include "qapi/qmp/json-streamer.h" diff --git a/qobject/qjson.c b/qobject/qjson.c index ef160d2119..9a0de89079 100644 --- a/qobject/qjson.c +++ b/qobject/qjson.c @@ -16,11 +16,7 @@ #include "qapi/qmp/json-parser.h" #include "qapi/qmp/json-streamer.h" #include "qapi/qmp/qjson.h" -#include "qapi/qmp/qint.h" -#include "qapi/qmp/qlist.h" -#include "qapi/qmp/qbool.h" -#include "qapi/qmp/qfloat.h" -#include "qapi/qmp/qdict.h" +#include "qapi/qmp/types.h" #include "qemu/unicode.h" typedef struct JSONParsingState diff --git a/qobject/qobject.c b/qobject/qobject.c index cd41fb940b..fe4fa10989 100644 --- a/qobject/qobject.c +++ b/qobject/qobject.c @@ -9,12 +9,7 @@ #include "qemu/osdep.h" #include "qemu-common.h" -#include "qapi/qmp/qbool.h" -#include "qapi/qmp/qdict.h" -#include "qapi/qmp/qfloat.h" -#include "qapi/qmp/qint.h" -#include "qapi/qmp/qlist.h" -#include "qapi/qmp/qstring.h" +#include "qapi/qmp/types.h" static void (*qdestroy[QTYPE__MAX])(QObject *) = { [QTYPE_NONE] = NULL, /* No such object exists */ diff --git a/qom/object.c b/qom/object.c index 9743ea4708..8166b7dace 100644 --- a/qom/object.c +++ b/qom/object.c @@ -1221,8 +1221,7 @@ int object_property_get_enum(Object *obj, const char *name, const char *typename, Error **errp) { Error *err = NULL; - StringOutputVisitor *sov; - StringInputVisitor *siv; + Visitor *v; char *str; int ret; ObjectProperty *prop = object_property_find(obj, name, errp); @@ -1241,21 +1240,20 @@ int object_property_get_enum(Object *obj, const char *name, enumprop = prop->opaque; - sov = string_output_visitor_new(false); - object_property_get(obj, string_output_get_visitor(sov), name, &err); + v = string_output_visitor_new(false, &str); + object_property_get(obj, v, name, &err); if (err) { error_propagate(errp, err); - string_output_visitor_cleanup(sov); + visit_free(v); return 0; } - str = string_output_get_string(sov); - siv = string_input_visitor_new(str); - string_output_visitor_cleanup(sov); - visit_type_enum(string_input_get_visitor(siv), name, &ret, - enumprop->strings, errp); + visit_complete(v, &str); + visit_free(v); + v = string_input_visitor_new(str); + visit_type_enum(v, name, &ret, enumprop->strings, errp); g_free(str); - string_input_visitor_cleanup(siv); + visit_free(v); return ret; } @@ -1264,55 +1262,51 @@ void object_property_get_uint16List(Object *obj, const char *name, uint16List **list, Error **errp) { Error *err = NULL; - StringOutputVisitor *ov; - StringInputVisitor *iv; + Visitor *v; char *str; - ov = string_output_visitor_new(false); - object_property_get(obj, string_output_get_visitor(ov), - name, &err); + v = string_output_visitor_new(false, &str); + object_property_get(obj, v, name, &err); if (err) { error_propagate(errp, err); goto out; } - str = string_output_get_string(ov); - iv = string_input_visitor_new(str); - visit_type_uint16List(string_input_get_visitor(iv), NULL, list, errp); + visit_complete(v, &str); + visit_free(v); + v = string_input_visitor_new(str); + visit_type_uint16List(v, NULL, list, errp); g_free(str); - string_input_visitor_cleanup(iv); out: - string_output_visitor_cleanup(ov); + visit_free(v); } void object_property_parse(Object *obj, const char *string, const char *name, Error **errp) { - StringInputVisitor *siv; - siv = string_input_visitor_new(string); - object_property_set(obj, string_input_get_visitor(siv), name, errp); - - string_input_visitor_cleanup(siv); + Visitor *v = string_input_visitor_new(string); + object_property_set(obj, v, name, errp); + visit_free(v); } char *object_property_print(Object *obj, const char *name, bool human, Error **errp) { - StringOutputVisitor *sov; + Visitor *v; char *string = NULL; Error *local_err = NULL; - sov = string_output_visitor_new(human); - object_property_get(obj, string_output_get_visitor(sov), name, &local_err); + v = string_output_visitor_new(human, &string); + object_property_get(obj, v, name, &local_err); if (local_err) { error_propagate(errp, local_err); goto out; } - string = string_output_get_string(sov); + visit_complete(v, &string); out: - string_output_visitor_cleanup(sov); + visit_free(v); return string; } @@ -2044,7 +2038,7 @@ static void property_get_tm(Object *obj, Visitor *v, const char *name, } visit_check_struct(v, &err); out_end: - visit_end_struct(v); + visit_end_struct(v, NULL); out: error_propagate(errp, err); diff --git a/qom/object_interfaces.c b/qom/object_interfaces.c index 51e62e29d6..bf598468ab 100644 --- a/qom/object_interfaces.c +++ b/qom/object_interfaces.c @@ -71,7 +71,7 @@ Object *user_creatable_add(const QDict *qdict, obj = user_creatable_add_type(type, id, pdict, v, &local_err); out_visit: - visit_end_struct(v); + visit_end_struct(v, NULL); out: QDECREF(pdict); @@ -127,7 +127,7 @@ Object *user_creatable_add_type(const char *type, const char *id, if (!local_err) { visit_check_struct(v, &local_err); } - visit_end_struct(v); + visit_end_struct(v, NULL); if (local_err) { goto out; } @@ -156,15 +156,15 @@ out: Object *user_creatable_add_opts(QemuOpts *opts, Error **errp) { - OptsVisitor *ov; + Visitor *v; QDict *pdict; Object *obj = NULL; - ov = opts_visitor_new(opts); + v = opts_visitor_new(opts); pdict = qemu_opts_to_qdict(opts, NULL); - obj = user_creatable_add(pdict, opts_get_visitor(ov), errp); - opts_visitor_cleanup(ov); + obj = user_creatable_add(pdict, v, errp); + visit_free(v); QDECREF(pdict); return obj; } diff --git a/qom/qom-qobject.c b/qom/qom-qobject.c index b66088d730..c225abcbad 100644 --- a/qom/qom-qobject.c +++ b/qom/qom-qobject.c @@ -21,12 +21,11 @@ void object_property_set_qobject(Object *obj, QObject *value, const char *name, Error **errp) { - QmpInputVisitor *qiv; + Visitor *v; /* TODO: Should we reject, rather than ignore, excess input? */ - qiv = qmp_input_visitor_new(value, false); - object_property_set(obj, qmp_input_get_visitor(qiv), name, errp); - - qmp_input_visitor_cleanup(qiv); + v = qmp_input_visitor_new(value, false); + object_property_set(obj, v, name, errp); + visit_free(v); } QObject *object_property_get_qobject(Object *obj, const char *name, @@ -34,14 +33,14 @@ QObject *object_property_get_qobject(Object *obj, const char *name, { QObject *ret = NULL; Error *local_err = NULL; - QmpOutputVisitor *qov; + Visitor *v; - qov = qmp_output_visitor_new(); - object_property_get(obj, qmp_output_get_visitor(qov), name, &local_err); + v = qmp_output_visitor_new(&ret); + object_property_get(obj, v, name, &local_err); if (!local_err) { - ret = qmp_output_get_qobject(qov); + visit_complete(v, &ret); } error_propagate(errp, local_err); - qmp_output_visitor_cleanup(qov); + visit_free(v); return ret; } diff --git a/replay/replay-input.c b/replay/replay-input.c index 03e99d5aba..bd93554d8e 100644 --- a/replay/replay-input.c +++ b/replay/replay-input.c @@ -16,35 +16,7 @@ #include "replay-internal.h" #include "qemu/notify.h" #include "ui/input.h" -#include "qapi/qmp-output-visitor.h" -#include "qapi/qmp-input-visitor.h" -#include "qapi-visit.h" - -static InputEvent *qapi_clone_InputEvent(InputEvent *src) -{ - QmpOutputVisitor *qov; - QmpInputVisitor *qiv; - Visitor *ov, *iv; - QObject *obj; - InputEvent *dst = NULL; - - qov = qmp_output_visitor_new(); - ov = qmp_output_get_visitor(qov); - visit_type_InputEvent(ov, NULL, &src, &error_abort); - obj = qmp_output_get_qobject(qov); - qmp_output_visitor_cleanup(qov); - if (!obj) { - return NULL; - } - - qiv = qmp_input_visitor_new(obj, true); - iv = qmp_input_get_visitor(qiv); - visit_type_InputEvent(iv, NULL, &dst, &error_abort); - qmp_input_visitor_cleanup(qiv); - qobject_decref(obj); - - return dst; -} +#include "qapi/clone-visitor.h" void replay_save_input_event(InputEvent *evt) { @@ -143,7 +115,7 @@ InputEvent *replay_read_input_event(void) break; } - return qapi_clone_InputEvent(&evt); + return QAPI_CLONE(InputEvent, &evt); } void replay_input_event(QemuConsole *src, InputEvent *evt) @@ -151,7 +123,7 @@ void replay_input_event(QemuConsole *src, InputEvent *evt) if (replay_mode == REPLAY_MODE_PLAY) { /* Nothing */ } else if (replay_mode == REPLAY_MODE_RECORD) { - replay_add_input_event(qapi_clone_InputEvent(evt)); + replay_add_input_event(QAPI_CLONE(InputEvent, evt)); } else { qemu_input_event_send_impl(src, evt); } diff --git a/scripts/qapi-commands.py b/scripts/qapi-commands.py index 8c6acb3f3f..34b6a3a07f 100644 --- a/scripts/qapi-commands.py +++ b/scripts/qapi-commands.py @@ -61,24 +61,18 @@ def gen_marshal_output(ret_type): static void qmp_marshal_output_%(c_name)s(%(c_type)s ret_in, QObject **ret_out, Error **errp) { Error *err = NULL; - QmpOutputVisitor *qov = qmp_output_visitor_new(); - QapiDeallocVisitor *qdv; Visitor *v; - v = qmp_output_get_visitor(qov); + v = qmp_output_visitor_new(ret_out); visit_type_%(c_name)s(v, "unused", &ret_in, &err); - if (err) { - goto out; + if (!err) { + visit_complete(v, ret_out); } - *ret_out = qmp_output_get_qobject(qov); - -out: error_propagate(errp, err); - qmp_output_visitor_cleanup(qov); - qdv = qapi_dealloc_visitor_new(); - v = qapi_dealloc_get_visitor(qdv); + visit_free(v); + v = qapi_dealloc_visitor_new(); visit_type_%(c_name)s(v, "unused", &ret_in, NULL); - qapi_dealloc_visitor_cleanup(qdv); + visit_free(v); } ''', c_type=ret_type.c_type(), c_name=ret_type.c_name()) @@ -115,12 +109,10 @@ def gen_marshal(name, arg_type, ret_type): if arg_type and arg_type.members: ret += mcgen(''' - QmpInputVisitor *qiv = qmp_input_visitor_new(QOBJECT(args), true); - QapiDeallocVisitor *qdv; Visitor *v; %(c_name)s arg = {0}; - v = qmp_input_get_visitor(qiv); + v = qmp_input_visitor_new(QOBJECT(args), true); visit_start_struct(v, NULL, NULL, 0, &err); if (err) { goto out; @@ -129,7 +121,7 @@ def gen_marshal(name, arg_type, ret_type): if (!err) { visit_check_struct(v, &err); } - visit_end_struct(v); + visit_end_struct(v, NULL); if (err) { goto out; } @@ -155,13 +147,12 @@ out: ''') if arg_type and arg_type.members: ret += mcgen(''' - qmp_input_visitor_cleanup(qiv); - qdv = qapi_dealloc_visitor_new(); - v = qapi_dealloc_get_visitor(qdv); + visit_free(v); + v = qapi_dealloc_visitor_new(); visit_start_struct(v, NULL, NULL, 0, NULL); visit_type_%(c_name)s_members(v, &arg, NULL); - visit_end_struct(v); - qapi_dealloc_visitor_cleanup(qdv); + visit_end_struct(v, NULL); + visit_free(v); ''', c_name=arg_type.c_name()) diff --git a/scripts/qapi-event.py b/scripts/qapi-event.py index 21fb16744d..9c88627c9f 100644 --- a/scripts/qapi-event.py +++ b/scripts/qapi-event.py @@ -71,7 +71,7 @@ def gen_event_send(name, arg_type): if arg_type and arg_type.members: ret += mcgen(''' - QmpOutputVisitor *qov; + QObject *obj; Visitor *v; ''') ret += gen_param_var(arg_type) @@ -90,8 +90,7 @@ def gen_event_send(name, arg_type): if arg_type and arg_type.members: ret += mcgen(''' - qov = qmp_output_visitor_new(); - v = qmp_output_get_visitor(qov); + v = qmp_output_visitor_new(&obj); visit_start_struct(v, "%(name)s", NULL, 0, &err); if (err) { @@ -101,12 +100,13 @@ def gen_event_send(name, arg_type): if (!err) { visit_check_struct(v, &err); } - visit_end_struct(v); + visit_end_struct(v, NULL); if (err) { goto out; } - qdict_put_obj(qmp, "data", qmp_output_get_qobject(qov)); + visit_complete(v, &obj); + qdict_put_obj(qmp, "data", obj); ''', name=name, c_name=arg_type.c_name()) @@ -119,7 +119,7 @@ def gen_event_send(name, arg_type): if arg_type and arg_type.members: ret += mcgen(''' out: - qmp_output_visitor_cleanup(qov); + visit_free(v); ''') ret += mcgen(''' error_propagate(errp, err); diff --git a/scripts/qapi-types.py b/scripts/qapi-types.py index 437cf6c8e3..5ace2cf065 100644 --- a/scripts/qapi-types.py +++ b/scripts/qapi-types.py @@ -150,17 +150,15 @@ def gen_type_cleanup(name): void qapi_free_%(c_name)s(%(c_name)s *obj) { - QapiDeallocVisitor *qdv; Visitor *v; if (!obj) { return; } - qdv = qapi_dealloc_visitor_new(); - v = qapi_dealloc_get_visitor(qdv); + v = qapi_dealloc_visitor_new(); visit_type_%(c_name)s(v, NULL, &obj, NULL); - qapi_dealloc_visitor_cleanup(qdv); + visit_free(v); } ''', c_name=c_name(name)) diff --git a/scripts/qapi-visit.py b/scripts/qapi-visit.py index ffb635c508..0b9e298bc4 100644 --- a/scripts/qapi-visit.py +++ b/scripts/qapi-visit.py @@ -129,7 +129,7 @@ void visit_type_%(c_name)s(Visitor *v, const char *name, %(c_name)s **obj, Error } } - visit_end_list(v); + visit_end_list(v, (void **)obj); if (err && visit_is_input(v)) { qapi_free_%(c_name)s(*obj); *obj = NULL; @@ -194,7 +194,7 @@ void visit_type_%(c_name)s(Visitor *v, const char *name, %(c_name)s **obj, Error if (!err) { visit_check_struct(v, &err); } - visit_end_struct(v); + visit_end_struct(v, NULL); ''', c_type=var.type.c_name(), c_name=c_name(var.name)) @@ -216,7 +216,7 @@ void visit_type_%(c_name)s(Visitor *v, const char *name, %(c_name)s **obj, Error "%(name)s"); } out_obj: - visit_end_alternate(v); + visit_end_alternate(v, (void **)obj); if (err && visit_is_input(v)) { qapi_free_%(c_name)s(*obj); *obj = NULL; @@ -250,7 +250,7 @@ void visit_type_%(c_name)s(Visitor *v, const char *name, %(c_name)s **obj, Error } visit_check_struct(v, &err); out_obj: - visit_end_struct(v); + visit_end_struct(v, (void **)obj); if (err && visit_is_input(v)) { qapi_free_%(c_name)s(*obj); *obj = NULL; diff --git a/tests/.gitignore b/tests/.gitignore index 840ea396ab..dbb52639f6 100644 --- a/tests/.gitignore +++ b/tests/.gitignore @@ -13,6 +13,7 @@ test-aio test-base64 test-bitops test-blockjob-txn +test-clone-visitor test-coroutine test-crypto-afsplit test-crypto-block diff --git a/tests/Makefile.include b/tests/Makefile.include index f8e3c6b35a..2010b11b6c 100644 --- a/tests/Makefile.include +++ b/tests/Makefile.include @@ -22,6 +22,8 @@ check-unit-y += tests/check-qjson$(EXESUF) gcov-files-check-qjson-y = qobject/qjson.c check-unit-y += tests/test-qmp-output-visitor$(EXESUF) gcov-files-test-qmp-output-visitor-y = qapi/qmp-output-visitor.c +check-unit-y += tests/test-clone-visitor$(EXESUF) +gcov-files-test-clone-visitor-y = qapi/qapi-clone-visitor.c check-unit-y += tests/test-qmp-input-visitor$(EXESUF) gcov-files-test-qmp-input-visitor-y = qapi/qmp-input-visitor.c check-unit-y += tests/test-qmp-input-strict$(EXESUF) @@ -402,6 +404,7 @@ test-obj-y = tests/check-qint.o tests/check-qstring.o tests/check-qdict.o \ tests/check-qjson.o \ tests/test-coroutine.o tests/test-string-output-visitor.o \ tests/test-string-input-visitor.o tests/test-qmp-output-visitor.o \ + tests/test-clone-visitor.o \ tests/test-qmp-input-visitor.o tests/test-qmp-input-strict.o \ tests/test-qmp-commands.o tests/test-visitor-serialization.o \ tests/test-x86-cpuid.o tests/test-mul64.o tests/test-int128.o \ @@ -499,6 +502,7 @@ tests/test-string-output-visitor$(EXESUF): tests/test-string-output-visitor.o $( tests/test-string-input-visitor$(EXESUF): tests/test-string-input-visitor.o $(test-qapi-obj-y) tests/test-qmp-event$(EXESUF): tests/test-qmp-event.o $(test-qapi-obj-y) tests/test-qmp-output-visitor$(EXESUF): tests/test-qmp-output-visitor.o $(test-qapi-obj-y) +tests/test-clone-visitor$(EXESUF): tests/test-clone-visitor.o $(test-qapi-obj-y) tests/test-qmp-input-visitor$(EXESUF): tests/test-qmp-input-visitor.o $(test-qapi-obj-y) tests/test-qmp-input-strict$(EXESUF): tests/test-qmp-input-strict.o $(test-qapi-obj-y) tests/test-qmp-commands$(EXESUF): tests/test-qmp-commands.o tests/test-qmp-marshal.o $(test-qapi-obj-y) diff --git a/tests/check-qjson.c b/tests/check-qjson.c index 0e158f6eac..85955744eb 100644 --- a/tests/check-qjson.c +++ b/tests/check-qjson.c @@ -12,14 +12,8 @@ */ #include "qemu/osdep.h" -#include "qapi/qmp/qstring.h" -#include "qapi/qmp/qint.h" -#include "qapi/qmp/qdict.h" -#include "qapi/qmp/qlist.h" -#include "qapi/qmp/qfloat.h" -#include "qapi/qmp/qbool.h" +#include "qapi/qmp/types.h" #include "qapi/qmp/qjson.h" - #include "qemu-common.h" static void escaped_string(void) diff --git a/tests/check-qnull.c b/tests/check-qnull.c index 05d562d494..dc906b116e 100644 --- a/tests/check-qnull.c +++ b/tests/check-qnull.c @@ -37,8 +37,7 @@ static void qnull_ref_test(void) static void qnull_visit_test(void) { QObject *obj; - QmpOutputVisitor *qov; - QmpInputVisitor *qiv; + Visitor *v; /* * Most tests of interactions between QObject and visitors are in @@ -48,17 +47,17 @@ static void qnull_visit_test(void) g_assert(qnull_.refcnt == 1); obj = qnull(); - qiv = qmp_input_visitor_new(obj, true); + v = qmp_input_visitor_new(obj, true); qobject_decref(obj); - visit_type_null(qmp_input_get_visitor(qiv), NULL, &error_abort); - qmp_input_visitor_cleanup(qiv); + visit_type_null(v, NULL, &error_abort); + visit_free(v); - qov = qmp_output_visitor_new(); - visit_type_null(qmp_output_get_visitor(qov), NULL, &error_abort); - obj = qmp_output_get_qobject(qov); + v = qmp_output_visitor_new(&obj); + visit_type_null(v, NULL, &error_abort); + visit_complete(v, &obj); g_assert(obj == &qnull_); qobject_decref(obj); - qmp_output_visitor_cleanup(qov); + visit_free(v); g_assert(qnull_.refcnt == 1); } diff --git a/tests/test-clone-visitor.c b/tests/test-clone-visitor.c new file mode 100644 index 0000000000..df0c045512 --- /dev/null +++ b/tests/test-clone-visitor.c @@ -0,0 +1,206 @@ +/* + * QAPI Clone Visitor unit-tests. + * + * Copyright (C) 2016 Red Hat Inc. + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + */ + +#include "qemu/osdep.h" +#include <glib.h> + +#include "qemu-common.h" +#include "qapi/clone-visitor.h" +#include "test-qapi-types.h" +#include "test-qapi-visit.h" +#include "qapi/qmp/types.h" + +static void test_clone_struct(void) +{ + UserDefOne *src, *dst; + + src = g_new0(UserDefOne, 1); + src->integer = 42; + src->string = g_strdup("Hello"); + src->has_enum1 = false; + src->enum1 = ENUM_ONE_VALUE2; + + dst = QAPI_CLONE(UserDefOne, src); + g_assert(dst); + g_assert_cmpint(dst->integer, ==, 42); + g_assert(dst->string != src->string); + g_assert_cmpstr(dst->string, ==, "Hello"); + g_assert_cmpint(dst->has_enum1, ==, false); + /* Our implementation does this, but it is not required: + g_assert_cmpint(dst->enum1, ==, ENUM_ONE_VALUE2); + */ + + qapi_free_UserDefOne(src); + qapi_free_UserDefOne(dst); +} + +static void test_clone_alternate(void) +{ + AltStrBool *b_src, *s_src, *b_dst, *s_dst; + + b_src = g_new0(AltStrBool, 1); + b_src->type = QTYPE_QBOOL; + b_src->u.b = true; + s_src = g_new0(AltStrBool, 1); + s_src->type = QTYPE_QSTRING; + s_src->u.s = g_strdup("World"); + + b_dst = QAPI_CLONE(AltStrBool, b_src); + g_assert(b_dst); + g_assert_cmpint(b_dst->type, ==, b_src->type); + g_assert_cmpint(b_dst->u.b, ==, b_src->u.b); + s_dst = QAPI_CLONE(AltStrBool, s_src); + g_assert(s_dst); + g_assert_cmpint(s_dst->type, ==, s_src->type); + g_assert_cmpstr(s_dst->u.s, ==, s_src->u.s); + g_assert(s_dst->u.s != s_src->u.s); + + qapi_free_AltStrBool(b_src); + qapi_free_AltStrBool(s_src); + qapi_free_AltStrBool(b_dst); + qapi_free_AltStrBool(s_dst); +} + +static void test_clone_native_list(void) +{ + uint8List *src, *dst; + uint8List *tmp = NULL; + int i; + + /* Build list in reverse */ + for (i = 10; i; i--) { + src = g_new0(uint8List, 1); + src->next = tmp; + src->value = i; + tmp = src; + } + + dst = QAPI_CLONE(uint8List, src); + for (tmp = dst, i = 1; i <= 10; i++) { + g_assert(tmp); + g_assert_cmpint(tmp->value, ==, i); + tmp = tmp->next; + } + g_assert(!tmp); + + qapi_free_uint8List(src); + qapi_free_uint8List(dst); +} + +static void test_clone_empty(void) +{ + Empty2 *src, *dst; + + src = g_new0(Empty2, 1); + dst = QAPI_CLONE(Empty2, src); + g_assert(dst); + qapi_free_Empty2(src); + qapi_free_Empty2(dst); +} + +static void test_clone_complex1(void) +{ + UserDefNativeListUnion *src, *dst; + + src = g_new0(UserDefNativeListUnion, 1); + src->type = USER_DEF_NATIVE_LIST_UNION_KIND_STRING; + + dst = QAPI_CLONE(UserDefNativeListUnion, src); + g_assert(dst); + g_assert_cmpint(dst->type, ==, src->type); + g_assert(!dst->u.string.data); + + qapi_free_UserDefNativeListUnion(src); + qapi_free_UserDefNativeListUnion(dst); +} + +static void test_clone_complex2(void) +{ + WrapAlternate *src, *dst; + + src = g_new0(WrapAlternate, 1); + src->alt = g_new(UserDefAlternate, 1); + src->alt->type = QTYPE_QDICT; + src->alt->u.udfu.integer = 42; + /* Clone intentionally converts NULL into "" for strings */ + src->alt->u.udfu.string = NULL; + src->alt->u.udfu.enum1 = ENUM_ONE_VALUE3; + src->alt->u.udfu.u.value3.intb = 99; + src->alt->u.udfu.u.value3.has_a_b = true; + src->alt->u.udfu.u.value3.a_b = true; + + dst = QAPI_CLONE(WrapAlternate, src); + g_assert(dst); + g_assert(dst->alt); + g_assert_cmpint(dst->alt->type, ==, QTYPE_QDICT); + g_assert_cmpint(dst->alt->u.udfu.integer, ==, 42); + g_assert_cmpstr(dst->alt->u.udfu.string, ==, ""); + g_assert_cmpint(dst->alt->u.udfu.enum1, ==, ENUM_ONE_VALUE3); + g_assert_cmpint(dst->alt->u.udfu.u.value3.intb, ==, 99); + g_assert_cmpint(dst->alt->u.udfu.u.value3.has_a_b, ==, true); + g_assert_cmpint(dst->alt->u.udfu.u.value3.a_b, ==, true); + + qapi_free_WrapAlternate(src); + qapi_free_WrapAlternate(dst); +} + +static void test_clone_complex3(void) +{ + __org_qemu_x_Struct2 *src, *dst; + __org_qemu_x_Union1List *tmp; + + src = g_new0(__org_qemu_x_Struct2, 1); + tmp = src->array = g_new0(__org_qemu_x_Union1List, 1); + tmp->value = g_new0(__org_qemu_x_Union1, 1); + tmp->value->type = ORG_QEMU_X_UNION1_KIND___ORG_QEMU_X_BRANCH; + tmp->value->u.__org_qemu_x_branch.data = g_strdup("one"); + tmp = tmp->next = g_new0(__org_qemu_x_Union1List, 1); + tmp->value = g_new0(__org_qemu_x_Union1, 1); + tmp->value->type = ORG_QEMU_X_UNION1_KIND___ORG_QEMU_X_BRANCH; + tmp->value->u.__org_qemu_x_branch.data = g_strdup("two"); + tmp = tmp->next = g_new0(__org_qemu_x_Union1List, 1); + tmp->value = g_new0(__org_qemu_x_Union1, 1); + tmp->value->type = ORG_QEMU_X_UNION1_KIND___ORG_QEMU_X_BRANCH; + tmp->value->u.__org_qemu_x_branch.data = g_strdup("three"); + + dst = QAPI_CLONE(__org_qemu_x_Struct2, src); + g_assert(dst); + tmp = dst->array; + g_assert(tmp); + g_assert(tmp->value); + g_assert_cmpstr(tmp->value->u.__org_qemu_x_branch.data, ==, "one"); + tmp = tmp->next; + g_assert(tmp); + g_assert(tmp->value); + g_assert_cmpstr(tmp->value->u.__org_qemu_x_branch.data, ==, "two"); + tmp = tmp->next; + g_assert(tmp); + g_assert(tmp->value); + g_assert_cmpstr(tmp->value->u.__org_qemu_x_branch.data, ==, "three"); + tmp = tmp->next; + g_assert(!tmp); + + qapi_free___org_qemu_x_Struct2(src); + qapi_free___org_qemu_x_Struct2(dst); +} + +int main(int argc, char **argv) +{ + g_test_init(&argc, &argv, NULL); + + g_test_add_func("/visitor/clone/struct", test_clone_struct); + g_test_add_func("/visitor/clone/alternate", test_clone_alternate); + g_test_add_func("/visitor/clone/native_list", test_clone_native_list); + g_test_add_func("/visitor/clone/empty", test_clone_empty); + g_test_add_func("/visitor/clone/complex1", test_clone_complex1); + g_test_add_func("/visitor/clone/complex2", test_clone_complex2); + g_test_add_func("/visitor/clone/complex3", test_clone_complex3); + + return g_test_run(); +} diff --git a/tests/test-opts-visitor.c b/tests/test-opts-visitor.c index d75b114c15..0a9e75f1bb 100644 --- a/tests/test-opts-visitor.c +++ b/tests/test-opts-visitor.c @@ -37,16 +37,15 @@ setup_fixture(OptsVisitorFixture *f, gconstpointer test_data) { const char *opts_string = test_data; QemuOpts *opts; - OptsVisitor *ov; + Visitor *v; opts = qemu_opts_parse(qemu_find_opts("userdef"), opts_string, false, NULL); g_assert(opts != NULL); - ov = opts_visitor_new(opts); - visit_type_UserDefOptions(opts_get_visitor(ov), NULL, &f->userdef, - &f->err); - opts_visitor_cleanup(ov); + v = opts_visitor_new(opts); + visit_type_UserDefOptions(v, NULL, &f->userdef, &f->err); + visit_free(v); qemu_opts_del(opts); } diff --git a/tests/test-qmp-commands.c b/tests/test-qmp-commands.c index e8f619d331..8ffeb045cd 100644 --- a/tests/test-qmp-commands.c +++ b/tests/test-qmp-commands.c @@ -216,14 +216,14 @@ static void test_dealloc_partial(void) /* create partial object */ { QDict *ud2_dict; - QmpInputVisitor *qiv; + Visitor *v; ud2_dict = qdict_new(); qdict_put_obj(ud2_dict, "string0", QOBJECT(qstring_from_str(text))); - qiv = qmp_input_visitor_new(QOBJECT(ud2_dict), true); - visit_type_UserDefTwo(qmp_input_get_visitor(qiv), NULL, &ud2, &err); - qmp_input_visitor_cleanup(qiv); + v = qmp_input_visitor_new(QOBJECT(ud2_dict), true); + visit_type_UserDefTwo(v, NULL, &ud2, &err); + visit_free(v); QDECREF(ud2_dict); } diff --git a/tests/test-qmp-input-strict.c b/tests/test-qmp-input-strict.c index d5f57c583a..814550ac71 100644 --- a/tests/test-qmp-input-strict.c +++ b/tests/test-qmp-input-strict.c @@ -19,13 +19,14 @@ #include "test-qapi-types.h" #include "test-qapi-visit.h" #include "qapi/qmp/types.h" +#include "qapi/qmp/qjson.h" #include "test-qmp-introspect.h" #include "qmp-introspect.h" #include "qapi-visit.h" typedef struct TestInputVisitorData { QObject *obj; - QmpInputVisitor *qiv; + Visitor *qiv; } TestInputVisitorData; static void validate_teardown(TestInputVisitorData *data, @@ -35,7 +36,7 @@ static void validate_teardown(TestInputVisitorData *data, data->obj = NULL; if (data->qiv) { - qmp_input_visitor_cleanup(data->qiv); + visit_free(data->qiv); data->qiv = NULL; } } @@ -47,8 +48,6 @@ static Visitor *validate_test_init_internal(TestInputVisitorData *data, const char *json_string, va_list *ap) { - Visitor *v; - validate_teardown(data, NULL); data->obj = qobject_from_jsonv(json_string, ap); @@ -56,11 +55,7 @@ static Visitor *validate_test_init_internal(TestInputVisitorData *data, data->qiv = qmp_input_visitor_new(data->obj, true); g_assert(data->qiv); - - v = qmp_input_get_visitor(data->qiv); - g_assert(v); - - return v; + return data->qiv; } static GCC_FMT_ATTR(2, 3) diff --git a/tests/test-qmp-input-visitor.c b/tests/test-qmp-input-visitor.c index 1a4585c553..f583dce3ed 100644 --- a/tests/test-qmp-input-visitor.c +++ b/tests/test-qmp-input-visitor.c @@ -18,10 +18,11 @@ #include "test-qapi-types.h" #include "test-qapi-visit.h" #include "qapi/qmp/types.h" +#include "qapi/qmp/qjson.h" typedef struct TestInputVisitorData { QObject *obj; - QmpInputVisitor *qiv; + Visitor *qiv; } TestInputVisitorData; static void visitor_input_teardown(TestInputVisitorData *data, @@ -31,7 +32,7 @@ static void visitor_input_teardown(TestInputVisitorData *data, data->obj = NULL; if (data->qiv) { - qmp_input_visitor_cleanup(data->qiv); + visit_free(data->qiv); data->qiv = NULL; } } @@ -43,8 +44,6 @@ static Visitor *visitor_input_test_init_internal(TestInputVisitorData *data, const char *json_string, va_list *ap) { - Visitor *v; - visitor_input_teardown(data, NULL); data->obj = qobject_from_jsonv(json_string, ap); @@ -52,11 +51,7 @@ static Visitor *visitor_input_test_init_internal(TestInputVisitorData *data, data->qiv = qmp_input_visitor_new(data->obj, false); g_assert(data->qiv); - - v = qmp_input_get_visitor(data->qiv); - g_assert(v); - - return v; + return data->qiv; } static GCC_FMT_ATTR(2, 3) @@ -303,7 +298,7 @@ static void test_visitor_in_null(TestInputVisitorData *data, visit_type_null(v, "b", &err); error_free_or_abort(&err); visit_check_struct(v, &error_abort); - visit_end_struct(v); + visit_end_struct(v, NULL); } static void test_visitor_in_union_flat(TestInputVisitorData *data, diff --git a/tests/test-qmp-output-visitor.c b/tests/test-qmp-output-visitor.c index f8a7a271a9..513d71f0d1 100644 --- a/tests/test-qmp-output-visitor.c +++ b/tests/test-qmp-output-visitor.c @@ -18,28 +18,34 @@ #include "test-qapi-types.h" #include "test-qapi-visit.h" #include "qapi/qmp/types.h" +#include "qapi/qmp/qjson.h" typedef struct TestOutputVisitorData { - QmpOutputVisitor *qov; Visitor *ov; + QObject *obj; } TestOutputVisitorData; static void visitor_output_setup(TestOutputVisitorData *data, const void *unused) { - data->qov = qmp_output_visitor_new(); - g_assert(data->qov != NULL); - - data->ov = qmp_output_get_visitor(data->qov); - g_assert(data->ov != NULL); + data->ov = qmp_output_visitor_new(&data->obj); + g_assert(data->ov); } static void visitor_output_teardown(TestOutputVisitorData *data, const void *unused) { - qmp_output_visitor_cleanup(data->qov); - data->qov = NULL; + visit_free(data->ov); data->ov = NULL; + qobject_decref(data->obj); + data->obj = NULL; +} + +static QObject *visitor_get(TestOutputVisitorData *data) +{ + visit_complete(data->ov, &data->obj); + g_assert(data->obj); + return data->obj; } static void visitor_reset(TestOutputVisitorData *data) @@ -56,12 +62,9 @@ static void test_visitor_out_int(TestOutputVisitorData *data, visit_type_int(data->ov, NULL, &value, &error_abort); - obj = qmp_output_get_qobject(data->qov); - g_assert(obj != NULL); + obj = visitor_get(data); g_assert(qobject_type(obj) == QTYPE_QINT); g_assert_cmpint(qint_get_int(qobject_to_qint(obj)), ==, value); - - qobject_decref(obj); } static void test_visitor_out_bool(TestOutputVisitorData *data, @@ -72,12 +75,9 @@ static void test_visitor_out_bool(TestOutputVisitorData *data, visit_type_bool(data->ov, NULL, &value, &error_abort); - obj = qmp_output_get_qobject(data->qov); - g_assert(obj != NULL); + obj = visitor_get(data); g_assert(qobject_type(obj) == QTYPE_QBOOL); g_assert(qbool_get_bool(qobject_to_qbool(obj)) == value); - - qobject_decref(obj); } static void test_visitor_out_number(TestOutputVisitorData *data, @@ -88,12 +88,9 @@ static void test_visitor_out_number(TestOutputVisitorData *data, visit_type_number(data->ov, NULL, &value, &error_abort); - obj = qmp_output_get_qobject(data->qov); - g_assert(obj != NULL); + obj = visitor_get(data); g_assert(qobject_type(obj) == QTYPE_QFLOAT); g_assert(qfloat_get_double(qobject_to_qfloat(obj)) == value); - - qobject_decref(obj); } static void test_visitor_out_string(TestOutputVisitorData *data, @@ -104,12 +101,9 @@ static void test_visitor_out_string(TestOutputVisitorData *data, visit_type_str(data->ov, NULL, &string, &error_abort); - obj = qmp_output_get_qobject(data->qov); - g_assert(obj != NULL); + obj = visitor_get(data); g_assert(qobject_type(obj) == QTYPE_QSTRING); g_assert_cmpstr(qstring_get_str(qobject_to_qstring(obj)), ==, string); - - qobject_decref(obj); } static void test_visitor_out_no_string(TestOutputVisitorData *data, @@ -121,12 +115,9 @@ static void test_visitor_out_no_string(TestOutputVisitorData *data, /* A null string should return "" */ visit_type_str(data->ov, NULL, &string, &error_abort); - obj = qmp_output_get_qobject(data->qov); - g_assert(obj != NULL); + obj = visitor_get(data); g_assert(qobject_type(obj) == QTYPE_QSTRING); g_assert_cmpstr(qstring_get_str(qobject_to_qstring(obj)), ==, ""); - - qobject_decref(obj); } static void test_visitor_out_enum(TestOutputVisitorData *data, @@ -138,12 +129,10 @@ static void test_visitor_out_enum(TestOutputVisitorData *data, for (i = 0; i < ENUM_ONE__MAX; i++) { visit_type_EnumOne(data->ov, "unused", &i, &error_abort); - obj = qmp_output_get_qobject(data->qov); - g_assert(obj != NULL); + obj = visitor_get(data); g_assert(qobject_type(obj) == QTYPE_QSTRING); g_assert_cmpstr(qstring_get_str(qobject_to_qstring(obj)), ==, EnumOne_lookup[i]); - qobject_decref(obj); visitor_reset(data); } } @@ -176,8 +165,7 @@ static void test_visitor_out_struct(TestOutputVisitorData *data, visit_type_TestStruct(data->ov, NULL, &p, &error_abort); - obj = qmp_output_get_qobject(data->qov); - g_assert(obj != NULL); + obj = visitor_get(data); g_assert(qobject_type(obj) == QTYPE_QDICT); qdict = qobject_to_qdict(obj); @@ -185,8 +173,6 @@ static void test_visitor_out_struct(TestOutputVisitorData *data, g_assert_cmpint(qdict_get_int(qdict, "integer"), ==, 42); g_assert_cmpint(qdict_get_bool(qdict, "boolean"), ==, false); g_assert_cmpstr(qdict_get_str(qdict, "string"), ==, "foo"); - - QDECREF(qdict); } static void test_visitor_out_struct_nested(TestOutputVisitorData *data, @@ -221,8 +207,7 @@ static void test_visitor_out_struct_nested(TestOutputVisitorData *data, visit_type_UserDefTwo(data->ov, "unused", &ud2, &error_abort); - obj = qmp_output_get_qobject(data->qov); - g_assert(obj != NULL); + obj = visitor_get(data); g_assert(qobject_type(obj) == QTYPE_QDICT); qdict = qobject_to_qdict(obj); @@ -249,7 +234,6 @@ static void test_visitor_out_struct_nested(TestOutputVisitorData *data, g_assert_cmpint(qdict_get_int(userdef, "integer"), ==, value); g_assert_cmpstr(qdict_get_str(userdef, "string"), ==, string); - QDECREF(qdict); qapi_free_UserDefTwo(ud2); } @@ -301,8 +285,7 @@ static void test_visitor_out_list(TestOutputVisitorData *data, visit_type_TestStructList(data->ov, NULL, &head, &error_abort); - obj = qmp_output_get_qobject(data->qov); - g_assert(obj != NULL); + obj = visitor_get(data); g_assert(qobject_type(obj) == QTYPE_QLIST); qlist = qobject_to_qlist(obj); @@ -323,7 +306,6 @@ static void test_visitor_out_list(TestOutputVisitorData *data, } g_assert_cmpint(i, ==, max_items); - QDECREF(qlist); qapi_free_TestStructList(head); } @@ -367,11 +349,9 @@ static void test_visitor_out_any(TestOutputVisitorData *data, qobj = QOBJECT(qint_from_int(-42)); visit_type_any(data->ov, NULL, &qobj, &error_abort); - obj = qmp_output_get_qobject(data->qov); - g_assert(obj != NULL); + obj = visitor_get(data); g_assert(qobject_type(obj) == QTYPE_QINT); g_assert_cmpint(qint_get_int(qobject_to_qint(obj)), ==, -42); - qobject_decref(obj); qobject_decref(qobj); visitor_reset(data); @@ -382,8 +362,7 @@ static void test_visitor_out_any(TestOutputVisitorData *data, qobj = QOBJECT(qdict); visit_type_any(data->ov, NULL, &qobj, &error_abort); qobject_decref(qobj); - obj = qmp_output_get_qobject(data->qov); - g_assert(obj != NULL); + obj = visitor_get(data); qdict = qobject_to_qdict(obj); g_assert(qdict); qobj = qdict_get(qdict, "integer"); @@ -401,7 +380,6 @@ static void test_visitor_out_any(TestOutputVisitorData *data, qstring = qobject_to_qstring(qobj); g_assert(qstring); g_assert_cmpstr(qstring_get_str(qstring), ==, "foo"); - qobject_decref(obj); } static void test_visitor_out_union_flat(TestOutputVisitorData *data, @@ -417,7 +395,7 @@ static void test_visitor_out_union_flat(TestOutputVisitorData *data, tmp->u.value1.boolean = true; visit_type_UserDefFlatUnion(data->ov, NULL, &tmp, &error_abort); - arg = qmp_output_get_qobject(data->qov); + arg = visitor_get(data); g_assert(qobject_type(arg) == QTYPE_QDICT); qdict = qobject_to_qdict(arg); @@ -428,7 +406,6 @@ static void test_visitor_out_union_flat(TestOutputVisitorData *data, g_assert_cmpint(qdict_get_bool(qdict, "boolean"), ==, true); qapi_free_UserDefFlatUnion(tmp); - QDECREF(qdict); } static void test_visitor_out_alternate(TestOutputVisitorData *data, @@ -443,13 +420,12 @@ static void test_visitor_out_alternate(TestOutputVisitorData *data, tmp->u.i = 42; visit_type_UserDefAlternate(data->ov, NULL, &tmp, &error_abort); - arg = qmp_output_get_qobject(data->qov); + arg = visitor_get(data); g_assert(qobject_type(arg) == QTYPE_QINT); g_assert_cmpint(qint_get_int(qobject_to_qint(arg)), ==, 42); qapi_free_UserDefAlternate(tmp); - qobject_decref(arg); visitor_reset(data); tmp = g_new0(UserDefAlternate, 1); @@ -457,13 +433,12 @@ static void test_visitor_out_alternate(TestOutputVisitorData *data, tmp->u.s = g_strdup("hello"); visit_type_UserDefAlternate(data->ov, NULL, &tmp, &error_abort); - arg = qmp_output_get_qobject(data->qov); + arg = visitor_get(data); g_assert(qobject_type(arg) == QTYPE_QSTRING); g_assert_cmpstr(qstring_get_str(qobject_to_qstring(arg)), ==, "hello"); qapi_free_UserDefAlternate(tmp); - qobject_decref(arg); visitor_reset(data); tmp = g_new0(UserDefAlternate, 1); @@ -474,7 +449,7 @@ static void test_visitor_out_alternate(TestOutputVisitorData *data, tmp->u.udfu.u.value1.boolean = true; visit_type_UserDefAlternate(data->ov, NULL, &tmp, &error_abort); - arg = qmp_output_get_qobject(data->qov); + arg = visitor_get(data); g_assert_cmpint(qobject_type(arg), ==, QTYPE_QDICT); qdict = qobject_to_qdict(arg); @@ -485,7 +460,6 @@ static void test_visitor_out_alternate(TestOutputVisitorData *data, g_assert_cmpint(qdict_get_bool(qdict, "boolean"), ==, true); qapi_free_UserDefAlternate(tmp); - qobject_decref(arg); } static void test_visitor_out_null(TestOutputVisitorData *data, @@ -498,15 +472,14 @@ static void test_visitor_out_null(TestOutputVisitorData *data, visit_start_struct(data->ov, NULL, NULL, 0, &error_abort); visit_type_null(data->ov, "a", &error_abort); visit_check_struct(data->ov, &error_abort); - visit_end_struct(data->ov); - arg = qmp_output_get_qobject(data->qov); + visit_end_struct(data->ov, NULL); + arg = visitor_get(data); g_assert(qobject_type(arg) == QTYPE_QDICT); qdict = qobject_to_qdict(arg); g_assert_cmpint(qdict_size(qdict), ==, 1); nil = qdict_get(qdict, "a"); g_assert(nil); g_assert(qobject_type(nil) == QTYPE_QNULL); - qobject_decref(arg); } static void init_native_list(UserDefNativeListUnion *cvalue) @@ -737,10 +710,9 @@ static void test_native_list(TestOutputVisitorData *data, visit_type_UserDefNativeListUnion(data->ov, NULL, &cvalue, &error_abort); - obj = qmp_output_get_qobject(data->qov); + obj = visitor_get(data); check_native_list(obj, cvalue->type); qapi_free_UserDefNativeListUnion(cvalue); - qobject_decref(obj); } static void test_visitor_out_native_list_int(TestOutputVisitorData *data, diff --git a/tests/test-string-input-visitor.c b/tests/test-string-input-visitor.c index 7fe7a9c270..d837ebedad 100644 --- a/tests/test-string-input-visitor.c +++ b/tests/test-string-input-visitor.c @@ -20,15 +20,15 @@ #include "qapi/qmp/types.h" typedef struct TestInputVisitorData { - StringInputVisitor *siv; + Visitor *v; } TestInputVisitorData; static void visitor_input_teardown(TestInputVisitorData *data, const void *unused) { - if (data->siv) { - string_input_visitor_cleanup(data->siv); - data->siv = NULL; + if (data->v) { + visit_free(data->v); + data->v = NULL; } } @@ -39,15 +39,9 @@ static Visitor *visitor_input_test_init(TestInputVisitorData *data, const char *string) { - Visitor *v; - - data->siv = string_input_visitor_new(string); - g_assert(data->siv != NULL); - - v = string_input_get_visitor(data->siv); - g_assert(v != NULL); - - return v; + data->v = string_input_visitor_new(string); + g_assert(data->v); + return data->v; } static void test_visitor_in_int(TestInputVisitorData *data, @@ -199,8 +193,6 @@ static void test_visitor_in_enum(TestInputVisitorData *data, visitor_input_teardown(data, NULL); } - - data->siv = NULL; } /* Try to crash the visitors */ diff --git a/tests/test-string-output-visitor.c b/tests/test-string-output-visitor.c index edff5235fe..444844a15a 100644 --- a/tests/test-string-output-visitor.c +++ b/tests/test-string-output-visitor.c @@ -20,39 +20,53 @@ #include "qapi/qmp/types.h" typedef struct TestOutputVisitorData { - StringOutputVisitor *sov; Visitor *ov; + char *str; bool human; } TestOutputVisitorData; +static void visitor_output_setup_internal(TestOutputVisitorData *data, + bool human) +{ + data->human = human; + data->ov = string_output_visitor_new(human, &data->str); + g_assert(data->ov); +} + static void visitor_output_setup(TestOutputVisitorData *data, const void *unused) { - data->human = false; - data->sov = string_output_visitor_new(data->human); - g_assert(data->sov != NULL); - - data->ov = string_output_get_visitor(data->sov); - g_assert(data->ov != NULL); + return visitor_output_setup_internal(data, false); } static void visitor_output_setup_human(TestOutputVisitorData *data, const void *unused) { - data->human = true; - data->sov = string_output_visitor_new(data->human); - g_assert(data->sov != NULL); - - data->ov = string_output_get_visitor(data->sov); - g_assert(data->ov != NULL); + return visitor_output_setup_internal(data, true); } static void visitor_output_teardown(TestOutputVisitorData *data, const void *unused) { - string_output_visitor_cleanup(data->sov); - data->sov = NULL; + visit_free(data->ov); data->ov = NULL; + g_free(data->str); + data->str = NULL; +} + +static char *visitor_get(TestOutputVisitorData *data) +{ + visit_complete(data->ov, &data->str); + g_assert(data->str); + return data->str; +} + +static void visitor_reset(TestOutputVisitorData *data) +{ + bool human = data->human; + + visitor_output_teardown(data, NULL); + visitor_output_setup_internal(data, human); } static void test_visitor_out_int(TestOutputVisitorData *data, @@ -65,14 +79,12 @@ static void test_visitor_out_int(TestOutputVisitorData *data, visit_type_int(data->ov, NULL, &value, &err); g_assert(!err); - str = string_output_get_string(data->sov); - g_assert(str != NULL); + str = visitor_get(data); if (data->human) { g_assert_cmpstr(str, ==, "42 (0x2a)"); } else { g_assert_cmpstr(str, ==, "42"); } - g_free(str); } static void test_visitor_out_intList(TestOutputVisitorData *data, @@ -94,8 +106,7 @@ static void test_visitor_out_intList(TestOutputVisitorData *data, visit_type_intList(data->ov, NULL, &list, &err); g_assert(err == NULL); - str = string_output_get_string(data->sov); - g_assert(str != NULL); + str = visitor_get(data); if (data->human) { g_assert_cmpstr(str, ==, "0-1,3-6,9-16,21-22,9223372036854775806-9223372036854775807 " @@ -105,13 +116,7 @@ static void test_visitor_out_intList(TestOutputVisitorData *data, g_assert_cmpstr(str, ==, "0-1,3-6,9-16,21-22,9223372036854775806-9223372036854775807"); } - g_free(str); - while (list) { - intList *tmp2; - tmp2 = list->next; - g_free(list); - list = tmp2; - } + qapi_free_intList(list); } static void test_visitor_out_bool(TestOutputVisitorData *data, @@ -124,10 +129,8 @@ static void test_visitor_out_bool(TestOutputVisitorData *data, visit_type_bool(data->ov, NULL, &value, &err); g_assert(!err); - str = string_output_get_string(data->sov); - g_assert(str != NULL); + str = visitor_get(data); g_assert_cmpstr(str, ==, "true"); - g_free(str); } static void test_visitor_out_number(TestOutputVisitorData *data, @@ -140,10 +143,8 @@ static void test_visitor_out_number(TestOutputVisitorData *data, visit_type_number(data->ov, NULL, &value, &err); g_assert(!err); - str = string_output_get_string(data->sov); - g_assert(str != NULL); + str = visitor_get(data); g_assert_cmpstr(str, ==, "3.140000"); - g_free(str); } static void test_visitor_out_string(TestOutputVisitorData *data, @@ -157,61 +158,50 @@ static void test_visitor_out_string(TestOutputVisitorData *data, visit_type_str(data->ov, NULL, &string, &err); g_assert(!err); - str = string_output_get_string(data->sov); - g_assert(str != NULL); + str = visitor_get(data); if (data->human) { g_assert_cmpstr(str, ==, string_human); } else { g_assert_cmpstr(str, ==, string); } - g_free(str); } static void test_visitor_out_no_string(TestOutputVisitorData *data, const void *unused) { char *string = NULL; - Error *err = NULL; char *str; /* A null string should return "" */ - visit_type_str(data->ov, NULL, &string, &err); - g_assert(!err); + visit_type_str(data->ov, NULL, &string, &error_abort); - str = string_output_get_string(data->sov); - g_assert(str != NULL); + str = visitor_get(data); if (data->human) { g_assert_cmpstr(str, ==, "<null>"); } else { g_assert_cmpstr(str, ==, ""); } - g_free(str); } static void test_visitor_out_enum(TestOutputVisitorData *data, const void *unused) { - Error *err = NULL; char *str; EnumOne i; for (i = 0; i < ENUM_ONE__MAX; i++) { - char *str_human; - - visit_type_EnumOne(data->ov, "unused", &i, &err); - g_assert(!err); + visit_type_EnumOne(data->ov, "unused", &i, &error_abort); - str_human = g_strdup_printf("\"%s\"", EnumOne_lookup[i]); - - str = string_output_get_string(data->sov); - g_assert(str != NULL); + str = visitor_get(data); if (data->human) { + char *str_human = g_strdup_printf("\"%s\"", EnumOne_lookup[i]); + g_assert_cmpstr(str, ==, str_human); + g_free(str_human); } else { g_assert_cmpstr(str, ==, EnumOne_lookup[i]); } - g_free(str_human); - g_free(str); + visitor_reset(data); } } @@ -224,8 +214,7 @@ static void test_visitor_out_enum_errors(TestOutputVisitorData *data, for (i = 0; i < ARRAY_SIZE(bad_values) ; i++) { err = NULL; visit_type_EnumOne(data->ov, "unused", &bad_values[i], &err); - g_assert(err); - error_free(err); + error_free_or_abort(&err); } } diff --git a/tests/test-visitor-serialization.c b/tests/test-visitor-serialization.c index 777469f114..dba4670762 100644 --- a/tests/test-visitor-serialization.c +++ b/tests/test-visitor-serialization.c @@ -19,6 +19,7 @@ #include "test-qapi-visit.h" #include "qapi/error.h" #include "qapi/qmp/types.h" +#include "qapi/qmp/qjson.h" #include "qapi/qmp-input-visitor.h" #include "qapi/qmp-output-visitor.h" #include "qapi/string-input-visitor.h" @@ -88,11 +89,11 @@ typedef void (*VisitorFunc)(Visitor *v, void **native, Error **errp); static void dealloc_helper(void *native_in, VisitorFunc visit, Error **errp) { - QapiDeallocVisitor *qdv = qapi_dealloc_visitor_new(); + Visitor *v = qapi_dealloc_visitor_new(); - visit(qapi_dealloc_get_visitor(qdv), &native_in, errp); + visit(v, &native_in, errp); - qapi_dealloc_visitor_cleanup(qdv); + visit_free(v); } static void visit_primitive_type(Visitor *v, void **native, Error **errp) @@ -1011,8 +1012,9 @@ static PrimitiveType pt_values[] = { /* visitor-specific op implementations */ typedef struct QmpSerializeData { - QmpOutputVisitor *qov; - QmpInputVisitor *qiv; + Visitor *qov; + QObject *obj; + Visitor *qiv; } QmpSerializeData; static void qmp_serialize(void *native_in, void **datap, @@ -1020,8 +1022,8 @@ static void qmp_serialize(void *native_in, void **datap, { QmpSerializeData *d = g_malloc0(sizeof(*d)); - d->qov = qmp_output_visitor_new(); - visit(qmp_output_get_visitor(d->qov), &native_in, errp); + d->qov = qmp_output_visitor_new(&d->obj); + visit(d->qov, &native_in, errp); *datap = d; } @@ -1032,7 +1034,8 @@ static void qmp_deserialize(void **native_out, void *datap, QString *output_json; QObject *obj_orig, *obj; - obj_orig = qmp_output_get_qobject(d->qov); + visit_complete(d->qov, &d->obj); + obj_orig = d->obj; output_json = qobject_to_json(obj_orig); obj = qobject_from_json(qstring_get_str(output_json)); @@ -1040,22 +1043,22 @@ static void qmp_deserialize(void **native_out, void *datap, d->qiv = qmp_input_visitor_new(obj, true); qobject_decref(obj_orig); qobject_decref(obj); - visit(qmp_input_get_visitor(d->qiv), native_out, errp); + visit(d->qiv, native_out, errp); } static void qmp_cleanup(void *datap) { QmpSerializeData *d = datap; - qmp_output_visitor_cleanup(d->qov); - qmp_input_visitor_cleanup(d->qiv); + visit_free(d->qov); + visit_free(d->qiv); g_free(d); } typedef struct StringSerializeData { char *string; - StringOutputVisitor *sov; - StringInputVisitor *siv; + Visitor *sov; + Visitor *siv; } StringSerializeData; static void string_serialize(void *native_in, void **datap, @@ -1063,8 +1066,8 @@ static void string_serialize(void *native_in, void **datap, { StringSerializeData *d = g_malloc0(sizeof(*d)); - d->sov = string_output_visitor_new(false); - visit(string_output_get_visitor(d->sov), &native_in, errp); + d->sov = string_output_visitor_new(false, &d->string); + visit(d->sov, &native_in, errp); *datap = d; } @@ -1073,17 +1076,17 @@ static void string_deserialize(void **native_out, void *datap, { StringSerializeData *d = datap; - d->string = string_output_get_string(d->sov); + visit_complete(d->sov, &d->string); d->siv = string_input_visitor_new(d->string); - visit(string_input_get_visitor(d->siv), native_out, errp); + visit(d->siv, native_out, errp); } static void string_cleanup(void *datap) { StringSerializeData *d = datap; - string_output_visitor_cleanup(d->sov); - string_input_visitor_cleanup(d->siv); + visit_free(d->sov); + visit_free(d->siv); g_free(d->string); g_free(d); } diff --git a/ui/console.c b/ui/console.c index ce1e10570f..c24bfe422d 100644 --- a/ui/console.c +++ b/ui/console.c @@ -1709,11 +1709,13 @@ QEMUGLContext dpy_gl_ctx_get_current(QemuConsole *con) void dpy_gl_scanout(QemuConsole *con, uint32_t backing_id, bool backing_y_0_top, + uint32_t backing_width, uint32_t backing_height, uint32_t x, uint32_t y, uint32_t width, uint32_t height) { assert(con->gl); con->gl->ops->dpy_gl_scanout(con->gl, backing_id, backing_y_0_top, + backing_width, backing_height, x, y, width, height); } diff --git a/ui/gtk-egl.c b/ui/gtk-egl.c index 431457c746..3f5d328c7b 100644 --- a/ui/gtk-egl.c +++ b/ui/gtk-egl.c @@ -172,6 +172,7 @@ QEMUGLContext gd_egl_create_context(DisplayChangeListener *dcl, void gd_egl_scanout(DisplayChangeListener *dcl, uint32_t backing_id, bool backing_y_0_top, + uint32_t backing_width, uint32_t backing_height, uint32_t x, uint32_t y, uint32_t w, uint32_t h) { diff --git a/ui/sdl2-gl.c b/ui/sdl2-gl.c index a324ecacac..039645df3e 100644 --- a/ui/sdl2-gl.c +++ b/ui/sdl2-gl.c @@ -186,6 +186,7 @@ QEMUGLContext sdl2_gl_get_current_context(DisplayChangeListener *dcl) void sdl2_gl_scanout(DisplayChangeListener *dcl, uint32_t backing_id, bool backing_y_0_top, + uint32_t backing_width, uint32_t backing_height, uint32_t x, uint32_t y, uint32_t w, uint32_t h) { diff --git a/ui/spice-display.c b/ui/spice-display.c index 34095fbc8c..99132b69b6 100644 --- a/ui/spice-display.c +++ b/ui/spice-display.c @@ -527,11 +527,13 @@ static void interface_set_compression_level(QXLInstance *sin, int level) /* nothing to do */ } +#if SPICE_NEEDS_SET_MM_TIME static void interface_set_mm_time(QXLInstance *sin, uint32_t mm_time) { dprint(3, "%s/%d:\n", __func__, sin->id); /* nothing to do */ } +#endif static void interface_get_init_info(QXLInstance *sin, QXLDevInitInfo *info) { @@ -686,6 +688,7 @@ static int interface_client_monitors_config(QXLInstance *sin, { SimpleSpiceDisplay *ssd = container_of(sin, SimpleSpiceDisplay, qxl); QemuUIInfo info; + int head; if (!dpy_ui_info_supported(ssd->dcl.con)) { return 0; /* == not supported by guest */ @@ -695,14 +698,12 @@ static int interface_client_monitors_config(QXLInstance *sin, return 1; } - /* - * FIXME: multihead is tricky due to the way - * spice has multihead implemented. - */ memset(&info, 0, sizeof(info)); - if (mc->num_of_monitors > 0) { - info.width = mc->monitors[0].width; - info.height = mc->monitors[0].height; + + head = qemu_console_get_head(ssd->dcl.con); + if (mc->num_of_monitors > head) { + info.width = mc->monitors[head].width; + info.height = mc->monitors[head].height; } dpy_set_ui_info(ssd->dcl.con, &info); dprint(1, "%s/%d: size %dx%d\n", __func__, ssd->qxl.id, @@ -718,7 +719,9 @@ static const QXLInterface dpy_interface = { .attache_worker = interface_attach_worker, .set_compression_level = interface_set_compression_level, +#if SPICE_NEEDS_SET_MM_TIME .set_mm_time = interface_set_mm_time, +#endif .get_init_info = interface_get_init_info, /* the callbacks below are called from spice server thread context */ @@ -858,6 +861,8 @@ static QEMUGLContext qemu_spice_gl_create_context(DisplayChangeListener *dcl, static void qemu_spice_gl_scanout(DisplayChangeListener *dcl, uint32_t tex_id, bool y_0_top, + uint32_t backing_width, + uint32_t backing_height, uint32_t x, uint32_t y, uint32_t w, uint32_t h) { @@ -880,9 +885,7 @@ static void qemu_spice_gl_scanout(DisplayChangeListener *dcl, assert(!tex_id || fd >= 0); /* note: spice server will close the fd */ - spice_qxl_gl_scanout(&ssd->qxl, fd, - surface_width(ssd->ds), - surface_height(ssd->ds), + spice_qxl_gl_scanout(&ssd->qxl, fd, backing_width, backing_height, stride, fourcc, y_0_top); qemu_spice_gl_monitor_config(ssd, x, y, w, h); diff --git a/util/qemu-sockets.c b/util/qemu-sockets.c index cc2b043907..fb83d48944 100644 --- a/util/qemu-sockets.c +++ b/util/qemu-sockets.c @@ -1143,33 +1143,6 @@ SocketAddress *socket_remote_address(int fd, Error **errp) return socket_sockaddr_to_address(&ss, sslen, errp); } - -void qapi_copy_SocketAddress(SocketAddress **p_dest, - SocketAddress *src) -{ - QmpOutputVisitor *qov; - QmpInputVisitor *qiv; - Visitor *ov, *iv; - QObject *obj; - - *p_dest = NULL; - - qov = qmp_output_visitor_new(); - ov = qmp_output_get_visitor(qov); - visit_type_SocketAddress(ov, NULL, &src, &error_abort); - obj = qmp_output_get_qobject(qov); - qmp_output_visitor_cleanup(qov); - if (!obj) { - return; - } - - qiv = qmp_input_visitor_new(obj, true); - iv = qmp_input_get_visitor(qiv); - visit_type_SocketAddress(iv, NULL, p_dest, &error_abort); - qmp_input_visitor_cleanup(qiv); - qobject_decref(obj); -} - char *socket_address_to_string(struct SocketAddress *addr, Error **errp) { char *buf; |