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[Qemu-devel] [PATCH 4/5] block: add bdrv_map()
From: |
Devin Nakamura |
Subject: |
[Qemu-devel] [PATCH 4/5] block: add bdrv_map() |
Date: |
Tue, 5 Jul 2011 00:41:23 -0400 |
Signed-off-by: Devin Nakamura <address@hidden>
---
block.c | 12 ++++++++++++
block.h | 2 ++
2 files changed, 14 insertions(+), 0 deletions(-)
diff --git a/block.c b/block.c
index 302b0d5..c9ea201 100644
--- a/block.c
+++ b/block.c
@@ -3049,3 +3049,15 @@ int bdrv_get_mapping(BlockDriverState *bs, uint64_t
*guest_offset,
return drv->bdrv_get_mapping(bs, guest_offset, host_offset,
contiguous_bytes);
}
+
+int bdrv_map(BlockDriverState *bs, uint64_t *guest_offset,
+ uint64_t *host_offset, uint64_t *contiguous_bytes)
+{
+ BlockDriver *drv = bs->drv;
+ if (!drv)
+ return -ENOMEDIUM;
+ if (!drv->bdrv_map)
+ return -ENOTSUP;
+ return drv->bdrv_map(bs, guest_offset, host_offset,
+ contiguous_bytes);
+}
diff --git a/block.h b/block.h
index 8207389..ed21ead 100644
--- a/block.h
+++ b/block.h
@@ -254,6 +254,8 @@ int bdrv_open_conversion_target(BlockDriverState **bs, char
*filename,
char *target_fmt, QEMUOptionParameter
*options);
int bdrv_get_mapping(BlockDriverState *bs, uint64_t *guest_offset,
uint64_t *host_offset, uint64_t *contiguous_bytes);
+int bdrv_map(BlockDriverState *bs, uint64_t *guest_offset,
+ uint64_t *host_offset, uint64_t *contiguous_bytes);
typedef enum {
BLKDBG_L1_UPDATE,
--
1.7.6.rc1