diff options
| -rw-r--r-- | Makefile.objs | 2 | ||||
| -rw-r--r-- | block.c | 45 | ||||
| -rw-r--r-- | block.h | 5 | ||||
| -rw-r--r-- | block_int.h | 6 | ||||
| -rw-r--r-- | trace-events | 2 |
5 files changed, 59 insertions, 1 deletions
diff --git a/Makefile.objs b/Makefile.objs index 5679e1f..9549e2a 100644 --- a/Makefile.objs +++ b/Makefile.objs @@ -25,6 +25,7 @@ coroutine-obj-$(CONFIG_WIN32) += coroutine-win32.o block-obj-y = cutils.o cache-utils.o qemu-malloc.o qemu-option.o module.o async.o block-obj-y += nbd.o block.o aio.o aes.o qemu-config.o qemu-progress.o qemu-sockets.o +block-obj-y += $(coroutine-obj-y) block-obj-$(CONFIG_POSIX) += posix-aio-compat.o block-obj-$(CONFIG_LINUX_AIO) += linux-aio.o @@ -79,7 +80,6 @@ common-obj-y += readline.o console.o cursor.o qemu-error.o common-obj-y += $(oslib-obj-y) common-obj-$(CONFIG_WIN32) += os-win32.o common-obj-$(CONFIG_POSIX) += os-posix.o -common-obj-y += $(coroutine-obj-y) common-obj-y += tcg-runtime.o host-utils.o common-obj-y += irq.o ioport.o input.o @@ -1110,6 +1110,51 @@ int bdrv_pwrite_sync(BlockDriverState *bs, int64_t offset, return 0; } +int coroutine_fn bdrv_co_readv(BlockDriverState *bs, int64_t sector_num, + int nb_sectors, QEMUIOVector *qiov) +{ + BlockDriver *drv = bs->drv; + + trace_bdrv_co_readv(bs, sector_num, nb_sectors); + + if (!drv) { + return -ENOMEDIUM; + } + if (bdrv_check_request(bs, sector_num, nb_sectors)) { + return -EIO; + } + + return drv->bdrv_co_readv(bs, sector_num, nb_sectors, qiov); +} + +int coroutine_fn bdrv_co_writev(BlockDriverState *bs, int64_t sector_num, + int nb_sectors, QEMUIOVector *qiov) +{ + BlockDriver *drv = bs->drv; + + trace_bdrv_co_writev(bs, sector_num, nb_sectors); + + if (!bs->drv) { + return -ENOMEDIUM; + } + if (bs->read_only) { + return -EACCES; + } + if (bdrv_check_request(bs, sector_num, nb_sectors)) { + return -EIO; + } + + if (bs->dirty_bitmap) { + set_dirty_bitmap(bs, sector_num, nb_sectors, 1); + } + + if (bs->wr_highest_sector < sector_num + nb_sectors - 1) { + bs->wr_highest_sector = sector_num + nb_sectors - 1; + } + + return drv->bdrv_co_writev(bs, sector_num, nb_sectors, qiov); +} + /** * Truncate file to 'offset' bytes (needed only for file protocols) */ @@ -4,6 +4,7 @@ #include "qemu-aio.h" #include "qemu-common.h" #include "qemu-option.h" +#include "qemu-coroutine.h" #include "qobject.h" /* block.c */ @@ -85,6 +86,10 @@ int bdrv_pwrite(BlockDriverState *bs, int64_t offset, const void *buf, int count); 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_truncate(BlockDriverState *bs, int64_t offset); int64_t bdrv_getlength(BlockDriverState *bs); int64_t bdrv_get_allocated_file_size(BlockDriverState *bs); diff --git a/block_int.h b/block_int.h index efefbee..f6d02b3 100644 --- a/block_int.h +++ b/block_int.h @@ -27,6 +27,7 @@ #include "block.h" #include "qemu-option.h" #include "qemu-queue.h" +#include "qemu-coroutine.h" #define BLOCK_FLAG_ENCRYPT 1 #define BLOCK_FLAG_COMPAT6 4 @@ -77,6 +78,11 @@ struct BlockDriver { int (*bdrv_discard)(BlockDriverState *bs, int64_t sector_num, int nb_sectors); + 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_aio_multiwrite)(BlockDriverState *bs, BlockRequest *reqs, int num_reqs); int (*bdrv_merge_requests)(BlockDriverState *bs, BlockRequest* a, diff --git a/trace-events b/trace-events index 136f775..46bceca 100644 --- a/trace-events +++ b/trace-events @@ -66,6 +66,8 @@ disable bdrv_aio_flush(void *bs, void *opaque) "bs %p opaque %p" disable bdrv_aio_readv(void *bs, int64_t sector_num, int nb_sectors, void *opaque) "bs %p sector_num %"PRId64" nb_sectors %d opaque %p" disable bdrv_aio_writev(void *bs, int64_t sector_num, int nb_sectors, void *opaque) "bs %p sector_num %"PRId64" nb_sectors %d opaque %p" disable bdrv_set_locked(void *bs, int locked) "bs %p locked %d" +disable bdrv_co_readv(void *bs, int64_t sector_num, int nb_sector) "bs %p sector_num %"PRId64" nb_sectors %d" +disable bdrv_co_writev(void *bs, int64_t sector_num, int nb_sector) "bs %p sector_num %"PRId64" nb_sectors %d" # hw/virtio-blk.c disable virtio_blk_req_complete(void *req, int status) "req %p status %d" |