diff options
| author | Peter Lieven <pl@kamp.de> | 2013-10-21 16:00:18 +0200 |
|---|---|---|
| committer | Stefan Hajnoczi <stefanha@redhat.com> | 2013-11-07 13:58:58 +0100 |
| commit | 0173e7bbf3c892abd4e35507ddeb2f23c1a44829 (patch) | |
| tree | 80a0cfb39f6910887bd0b98d7ce6177bdd43addb | |
| parent | 17826bc159893300a05551d8a830275c5ecf0092 (diff) | |
block/vpc: fix virtual size for images created with disk2vhd
Signed-off-by: Peter Lieven <pl@kamp.de>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
| -rw-r--r-- | block/vpc.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/block/vpc.c b/block/vpc.c index 627d11cb9b..577cc45992 100644 --- a/block/vpc.c +++ b/block/vpc.c @@ -211,6 +211,15 @@ static int vpc_open(BlockDriverState *bs, QDict *options, int flags, bs->total_sectors = (int64_t) be16_to_cpu(footer->cyls) * footer->heads * footer->secs_per_cyl; + /* images created with disk2vhd report a far higher virtual size + * than expected with the cyls * heads * sectors_per_cyl formula. + * use the footer->size instead if the image was created with + * disk2vhd. + */ + if (!strncmp(footer->creator_app, "d2v", 4)) { + bs->total_sectors = be64_to_cpu(footer->size) / BDRV_SECTOR_SIZE; + } + /* Allow a maximum disk size of approximately 2 TB */ if (bs->total_sectors >= 65535LL * 255 * 255) { ret = -EFBIG; |