diff options
| -rw-r--r-- | block.c | 16 | ||||
| -rw-r--r-- | include/block/block.h | 2 |
2 files changed, 18 insertions, 0 deletions
@@ -5200,6 +5200,11 @@ void *qemu_blockalign(BlockDriverState *bs, size_t size) return qemu_memalign(bdrv_opt_mem_align(bs), size); } +void *qemu_blockalign0(BlockDriverState *bs, size_t size) +{ + return memset(qemu_blockalign(bs, size), 0, size); +} + void *qemu_try_blockalign(BlockDriverState *bs, size_t size) { size_t align = bdrv_opt_mem_align(bs); @@ -5213,6 +5218,17 @@ void *qemu_try_blockalign(BlockDriverState *bs, size_t size) return qemu_try_memalign(align, size); } +void *qemu_try_blockalign0(BlockDriverState *bs, size_t size) +{ + void *mem = qemu_try_blockalign(bs, size); + + if (mem) { + memset(mem, 0, size); + } + + return mem; +} + /* * Check if all memory in this vector is sector aligned. */ diff --git a/include/block/block.h b/include/block/block.h index c9ec0ab386..341054dcf7 100644 --- a/include/block/block.h +++ b/include/block/block.h @@ -412,7 +412,9 @@ void bdrv_img_create(const char *filename, const char *fmt, size_t bdrv_opt_mem_align(BlockDriverState *bs); void bdrv_set_guest_block_size(BlockDriverState *bs, int align); void *qemu_blockalign(BlockDriverState *bs, size_t size); +void *qemu_blockalign0(BlockDriverState *bs, size_t size); void *qemu_try_blockalign(BlockDriverState *bs, size_t size); +void *qemu_try_blockalign0(BlockDriverState *bs, size_t size); bool bdrv_qiov_is_aligned(BlockDriverState *bs, QEMUIOVector *qiov); struct HBitmapIter; |