diff options
| -rw-r--r-- | exec.c | 8 | ||||
| -rw-r--r-- | hw/i386/xen/xen-mapcache.c | 15 | ||||
| -rw-r--r-- | include/sysemu/xen-mapcache.h | 5 |
3 files changed, 17 insertions, 11 deletions
diff --git a/exec.c b/exec.c index eac6085760..85769e1464 100644 --- a/exec.c +++ b/exec.c @@ -2084,10 +2084,10 @@ void *qemu_map_ram_ptr(RAMBlock *ram_block, ram_addr_t addr) * In that case just map until the end of the page. */ if (block->offset == 0) { - return xen_map_cache(addr, 0, 0); + return xen_map_cache(addr, 0, 0, false); } - block->host = xen_map_cache(block->offset, block->max_length, 1); + block->host = xen_map_cache(block->offset, block->max_length, 1, false); } return ramblock_ptr(block, addr); } @@ -2117,10 +2117,10 @@ static void *qemu_ram_ptr_length(RAMBlock *ram_block, ram_addr_t addr, * In that case just map the requested area. */ if (block->offset == 0) { - return xen_map_cache(addr, *size, 1); + return xen_map_cache(addr, *size, 1, true); } - block->host = xen_map_cache(block->offset, block->max_length, 1); + block->host = xen_map_cache(block->offset, block->max_length, 1, true); } return ramblock_ptr(block, addr); diff --git a/hw/i386/xen/xen-mapcache.c b/hw/i386/xen/xen-mapcache.c index 31debdfb2c..e60156c04f 100644 --- a/hw/i386/xen/xen-mapcache.c +++ b/hw/i386/xen/xen-mapcache.c @@ -62,6 +62,7 @@ typedef struct MapCacheRev { hwaddr paddr_index; hwaddr size; QTAILQ_ENTRY(MapCacheRev) next; + bool dma; } MapCacheRev; typedef struct MapCache { @@ -202,7 +203,7 @@ static void xen_remap_bucket(MapCacheEntry *entry, } static uint8_t *xen_map_cache_unlocked(hwaddr phys_addr, hwaddr size, - uint8_t lock) + uint8_t lock, bool dma) { MapCacheEntry *entry, *pentry = NULL; hwaddr address_index; @@ -289,6 +290,7 @@ tryagain: if (lock) { MapCacheRev *reventry = g_malloc0(sizeof(MapCacheRev)); entry->lock++; + reventry->dma = dma; reventry->vaddr_req = mapcache->last_entry->vaddr_base + address_offset; reventry->paddr_index = mapcache->last_entry->paddr_index; reventry->size = entry->size; @@ -300,12 +302,12 @@ tryagain: } uint8_t *xen_map_cache(hwaddr phys_addr, hwaddr size, - uint8_t lock) + uint8_t lock, bool dma) { uint8_t *p; mapcache_lock(); - p = xen_map_cache_unlocked(phys_addr, size, lock); + p = xen_map_cache_unlocked(phys_addr, size, lock, dma); mapcache_unlock(); return p; } @@ -426,8 +428,11 @@ void xen_invalidate_map_cache(void) mapcache_lock(); QTAILQ_FOREACH(reventry, &mapcache->locked_entries, next) { - DPRINTF("There should be no locked mappings at this time, " - "but "TARGET_FMT_plx" -> %p is present\n", + if (!reventry->dma) { + continue; + } + fprintf(stderr, "Locked DMA mapping while invalidating mapcache!" + " "TARGET_FMT_plx" -> %p is present\n", reventry->paddr_index, reventry->vaddr_req); } diff --git a/include/sysemu/xen-mapcache.h b/include/sysemu/xen-mapcache.h index b8c93b9bce..01daaad00c 100644 --- a/include/sysemu/xen-mapcache.h +++ b/include/sysemu/xen-mapcache.h @@ -17,7 +17,7 @@ typedef hwaddr (*phys_offset_to_gaddr_t)(hwaddr start_addr, void xen_map_cache_init(phys_offset_to_gaddr_t f, void *opaque); uint8_t *xen_map_cache(hwaddr phys_addr, hwaddr size, - uint8_t lock); + uint8_t lock, bool dma); ram_addr_t xen_ram_addr_from_mapcache(void *ptr); void xen_invalidate_map_cache_entry(uint8_t *buffer); void xen_invalidate_map_cache(void); @@ -31,7 +31,8 @@ static inline void xen_map_cache_init(phys_offset_to_gaddr_t f, static inline uint8_t *xen_map_cache(hwaddr phys_addr, hwaddr size, - uint8_t lock) + uint8_t lock, + bool dma) { abort(); } |