diff options
Diffstat (limited to 'dump.c')
| -rw-r--r-- | dump.c | 51 |
1 files changed, 25 insertions, 26 deletions
diff --git a/dump.c b/dump.c index cde14d9d75..e0a606fbbc 100644 --- a/dump.c +++ b/dump.c @@ -90,7 +90,6 @@ typedef struct DumpState { uint8_t *note_buf; /* buffer for notes */ size_t note_buf_offset; /* the writing place in note_buf */ uint32_t nr_cpus; /* number of guest's cpu */ - size_t page_size; /* guest's page size */ uint64_t max_mapnr; /* the biggest guest's phys-mem's number */ size_t len_dump_bitmap; /* the size of the place used to store dump_bitmap in vmcore */ @@ -805,7 +804,7 @@ static int create_header32(DumpState *s) strncpy(dh->signature, KDUMP_SIGNATURE, strlen(KDUMP_SIGNATURE)); dh->header_version = cpu_convert_to_target32(6, endian); - block_size = s->page_size; + block_size = TARGET_PAGE_SIZE; dh->block_size = cpu_convert_to_target32(block_size, endian); sub_hdr_size = sizeof(struct KdumpSubHeader32) + s->note_size; sub_hdr_size = DIV_ROUND_UP(sub_hdr_size, block_size); @@ -912,7 +911,7 @@ static int create_header64(DumpState *s) strncpy(dh->signature, KDUMP_SIGNATURE, strlen(KDUMP_SIGNATURE)); dh->header_version = cpu_convert_to_target32(6, endian); - block_size = s->page_size; + block_size = TARGET_PAGE_SIZE; dh->block_size = cpu_convert_to_target32(block_size, endian); sub_hdr_size = sizeof(struct KdumpSubHeader64) + s->note_size; sub_hdr_size = DIV_ROUND_UP(sub_hdr_size, block_size); @@ -1083,8 +1082,8 @@ static bool get_next_page(GuestPhysBlock **blockptr, uint64_t *pfnptr, if (!block) { block = QTAILQ_FIRST(&s->guest_phys_blocks.head); *blockptr = block; - assert(block->target_start % s->page_size == 0); - assert(block->target_end % s->page_size == 0); + assert((block->target_start & ~TARGET_PAGE_MASK) == 0); + assert((block->target_end & ~TARGET_PAGE_MASK) == 0); *pfnptr = paddr_to_pfn(block->target_start); if (bufptr) { *bufptr = block->host_addr; @@ -1096,7 +1095,7 @@ static bool get_next_page(GuestPhysBlock **blockptr, uint64_t *pfnptr, addr = pfn_to_paddr(*pfnptr); if ((addr >= block->target_start) && - (addr + s->page_size <= block->target_end)) { + (addr + TARGET_PAGE_SIZE <= block->target_end)) { buf = block->host_addr + (addr - block->target_start); } else { /* the next page is in the next block */ @@ -1105,8 +1104,8 @@ static bool get_next_page(GuestPhysBlock **blockptr, uint64_t *pfnptr, if (!block) { return false; } - assert(block->target_start % s->page_size == 0); - assert(block->target_end % s->page_size == 0); + assert((block->target_start & ~TARGET_PAGE_MASK) == 0); + assert((block->target_end & ~TARGET_PAGE_MASK) == 0); *pfnptr = paddr_to_pfn(block->target_start); buf = block->host_addr; } @@ -1291,7 +1290,7 @@ static int write_dump_pages(DumpState *s) prepare_data_cache(&page_data, s, offset_data); /* prepare buffer to store compressed data */ - len_buf_out = get_len_buf_out(s->page_size, s->flag_compress); + len_buf_out = get_len_buf_out(TARGET_PAGE_SIZE, s->flag_compress); if (len_buf_out == 0) { dump_error(s, "dump: failed to get length of output buffer.\n"); goto out; @@ -1307,19 +1306,19 @@ static int write_dump_pages(DumpState *s) * init zero page's page_desc and page_data, because every zero page * uses the same page_data */ - pd_zero.size = cpu_convert_to_target32(s->page_size, endian); + pd_zero.size = cpu_convert_to_target32(TARGET_PAGE_SIZE, endian); pd_zero.flags = cpu_convert_to_target32(0, endian); pd_zero.offset = cpu_convert_to_target64(offset_data, endian); pd_zero.page_flags = cpu_convert_to_target64(0, endian); - buf = g_malloc0(s->page_size); - ret = write_cache(&page_data, buf, s->page_size, false); + buf = g_malloc0(TARGET_PAGE_SIZE); + ret = write_cache(&page_data, buf, TARGET_PAGE_SIZE, false); g_free(buf); if (ret < 0) { dump_error(s, "dump: failed to write page data(zero page).\n"); goto out; } - offset_data += s->page_size; + offset_data += TARGET_PAGE_SIZE; /* * dump memory to vmcore page by page. zero page will all be resided in the @@ -1327,7 +1326,7 @@ static int write_dump_pages(DumpState *s) */ while (get_next_page(&block_iter, &pfn_iter, &buf, s)) { /* check zero page */ - if (is_zero_page(buf, s->page_size)) { + if (is_zero_page(buf, TARGET_PAGE_SIZE)) { ret = write_cache(&page_desc, &pd_zero, sizeof(PageDescriptor), false); if (ret < 0) { @@ -1348,8 +1347,9 @@ static int write_dump_pages(DumpState *s) */ size_out = len_buf_out; if ((s->flag_compress & DUMP_DH_COMPRESSED_ZLIB) && - (compress2(buf_out, (uLongf *)&size_out, buf, s->page_size, - Z_BEST_SPEED) == Z_OK) && (size_out < s->page_size)) { + (compress2(buf_out, (uLongf *)&size_out, buf, + TARGET_PAGE_SIZE, Z_BEST_SPEED) == Z_OK) && + (size_out < TARGET_PAGE_SIZE)) { pd.flags = cpu_convert_to_target32(DUMP_DH_COMPRESSED_ZLIB, endian); pd.size = cpu_convert_to_target32(size_out, endian); @@ -1361,9 +1361,9 @@ static int write_dump_pages(DumpState *s) } #ifdef CONFIG_LZO } else if ((s->flag_compress & DUMP_DH_COMPRESSED_LZO) && - (lzo1x_1_compress(buf, s->page_size, buf_out, + (lzo1x_1_compress(buf, TARGET_PAGE_SIZE, buf_out, (lzo_uint *)&size_out, wrkmem) == LZO_E_OK) && - (size_out < s->page_size)) { + (size_out < TARGET_PAGE_SIZE)) { pd.flags = cpu_convert_to_target32(DUMP_DH_COMPRESSED_LZO, endian); pd.size = cpu_convert_to_target32(size_out, endian); @@ -1376,9 +1376,9 @@ static int write_dump_pages(DumpState *s) #endif #ifdef CONFIG_SNAPPY } else if ((s->flag_compress & DUMP_DH_COMPRESSED_SNAPPY) && - (snappy_compress((char *)buf, s->page_size, + (snappy_compress((char *)buf, TARGET_PAGE_SIZE, (char *)buf_out, &size_out) == SNAPPY_OK) && - (size_out < s->page_size)) { + (size_out < TARGET_PAGE_SIZE)) { pd.flags = cpu_convert_to_target32( DUMP_DH_COMPRESSED_SNAPPY, endian); pd.size = cpu_convert_to_target32(size_out, endian); @@ -1392,13 +1392,13 @@ static int write_dump_pages(DumpState *s) } else { /* * fall back to save in plaintext, size_out should be - * assigned to s->page_size + * assigned TARGET_PAGE_SIZE */ pd.flags = cpu_convert_to_target32(0, endian); - size_out = s->page_size; + size_out = TARGET_PAGE_SIZE; pd.size = cpu_convert_to_target32(size_out, endian); - ret = write_cache(&page_data, buf, s->page_size, false); + ret = write_cache(&page_data, buf, TARGET_PAGE_SIZE, false); if (ret < 0) { dump_error(s, "dump: failed to write page data.\n"); goto out; @@ -1610,13 +1610,12 @@ static int dump_init(DumpState *s, int fd, bool has_format, } s->nr_cpus = nr_cpus; - s->page_size = TARGET_PAGE_SIZE; get_max_mapnr(s); uint64_t tmp; - tmp = DIV_ROUND_UP(DIV_ROUND_UP(s->max_mapnr, CHAR_BIT), s->page_size); - s->len_dump_bitmap = tmp * s->page_size; + tmp = DIV_ROUND_UP(DIV_ROUND_UP(s->max_mapnr, CHAR_BIT), TARGET_PAGE_SIZE); + s->len_dump_bitmap = tmp * TARGET_PAGE_SIZE; /* init for kdump-compressed format */ if (has_format && format != DUMP_GUEST_MEMORY_FORMAT_ELF) { |