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vpc, vhdx: add get_info

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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Peter Lieven <pl@kamp.de>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Paolo Bonzini 2013-11-22 13:39:49 +01:00 committed by Stefan Hajnoczi
parent b8d71c09f3
commit 97b00e2851
2 changed files with 24 additions and 0 deletions
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10
block/vhdx.c
View File

@ -1043,6 +1043,15 @@ static void vhdx_block_translate(BDRVVHDXState *s, int64_t sector_num,
} }
static int vhdx_get_info(BlockDriverState *bs, BlockDriverInfo *bdi)
{
BDRVVHDXState *s = bs->opaque;
bdi->cluster_size = s->block_size;
return 0;
}
static coroutine_fn int vhdx_co_readv(BlockDriverState *bs, int64_t sector_num, static coroutine_fn int vhdx_co_readv(BlockDriverState *bs, int64_t sector_num,
int nb_sectors, QEMUIOVector *qiov) int nb_sectors, QEMUIOVector *qiov)
@ -1885,6 +1894,7 @@ static BlockDriver bdrv_vhdx = {
.bdrv_co_readv = vhdx_co_readv, .bdrv_co_readv = vhdx_co_readv,
.bdrv_co_writev = vhdx_co_writev, .bdrv_co_writev = vhdx_co_writev,
.bdrv_create = vhdx_create, .bdrv_create = vhdx_create,
.bdrv_get_info = vhdx_get_info,
.create_options = vhdx_create_options, .create_options = vhdx_create_options,
}; };

14
block/vpc.c
View File

@ -455,6 +455,18 @@ fail:
return -1; return -1;
} }
static int vpc_get_info(BlockDriverState *bs, BlockDriverInfo *bdi)
{
BDRVVPCState *s = (BDRVVPCState *)bs->opaque;
VHDFooter *footer = (VHDFooter *) s->footer_buf;
if (cpu_to_be32(footer->type) != VHD_FIXED) {
bdi->cluster_size = s->block_size;
}
return 0;
}
static int vpc_read(BlockDriverState *bs, int64_t sector_num, static int vpc_read(BlockDriverState *bs, int64_t sector_num,
uint8_t *buf, int nb_sectors) uint8_t *buf, int nb_sectors)
{ {
@ -857,6 +869,8 @@ static BlockDriver bdrv_vpc = {
.bdrv_read = vpc_co_read, .bdrv_read = vpc_co_read,
.bdrv_write = vpc_co_write, .bdrv_write = vpc_co_write,
.bdrv_get_info = vpc_get_info,
.create_options = vpc_create_options, .create_options = vpc_create_options,
.bdrv_has_zero_init = vpc_has_zero_init, .bdrv_has_zero_init = vpc_has_zero_init,
}; };