diff options
| -rw-r--r-- | hw/misc/vfio.c | 1 | ||||
| -rw-r--r-- | include/exec/memory.h | 19 | ||||
| -rw-r--r-- | memory.c | 10 | ||||
| -rw-r--r-- | memory_mapping.c | 3 |
4 files changed, 32 insertions, 1 deletions
diff --git a/hw/misc/vfio.c b/hw/misc/vfio.c index b5e798173b..fd318a122d 100644 --- a/hw/misc/vfio.c +++ b/hw/misc/vfio.c @@ -2911,6 +2911,7 @@ static int vfio_mmap_bar(VFIODevice *vdev, VFIOBAR *bar, } memory_region_init_ram_ptr(submem, OBJECT(vdev), name, size, *map); + memory_region_set_skip_dump(submem); } else { empty_region: /* Create a zero sized sub-region to make cleanup easy. */ diff --git a/include/exec/memory.h b/include/exec/memory.h index 072aad2239..74a58b4883 100644 --- a/include/exec/memory.h +++ b/include/exec/memory.h @@ -150,6 +150,7 @@ struct MemoryRegion { bool terminates; bool romd_mode; bool ram; + bool skip_dump; bool readonly; /* For RAM regions */ bool enabled; bool rom_device; @@ -457,6 +458,24 @@ uint64_t memory_region_size(MemoryRegion *mr); bool memory_region_is_ram(MemoryRegion *mr); /** + * memory_region_is_skip_dump: check whether a memory region should not be + * dumped + * + * Returns %true is a memory region should not be dumped(e.g. VFIO BAR MMAP). + * + * @mr: the memory region being queried + */ +bool memory_region_is_skip_dump(MemoryRegion *mr); + +/** + * memory_region_set_skip_dump: Set skip_dump flag, dump will ignore this memory + * region + * + * @mr: the memory region being queried + */ +void memory_region_set_skip_dump(MemoryRegion *mr); + +/** * memory_region_is_romd: check whether a memory region is in ROMD mode * * Returns %true if a memory region is a ROM device and currently set to allow @@ -1185,6 +1185,11 @@ void memory_region_init_ram_ptr(MemoryRegion *mr, mr->ram_addr = qemu_ram_alloc_from_ptr(size, ptr, mr, &error_abort); } +void memory_region_set_skip_dump(MemoryRegion *mr) +{ + mr->skip_dump = true; +} + void memory_region_init_alias(MemoryRegion *mr, Object *owner, const char *name, @@ -1306,6 +1311,11 @@ bool memory_region_is_ram(MemoryRegion *mr) return mr->ram; } +bool memory_region_is_skip_dump(MemoryRegion *mr) +{ + return mr->skip_dump; +} + bool memory_region_is_logging(MemoryRegion *mr) { return mr->dirty_log_mask; diff --git a/memory_mapping.c b/memory_mapping.c index 87a6ed5c8e..7b69801cb8 100644 --- a/memory_mapping.c +++ b/memory_mapping.c @@ -203,7 +203,8 @@ static void guest_phys_blocks_region_add(MemoryListener *listener, GuestPhysBlock *predecessor; /* we only care about RAM */ - if (!memory_region_is_ram(section->mr)) { + if (!memory_region_is_ram(section->mr) || + memory_region_is_skip_dump(section->mr)) { return; } |