diff options
| author | Stefan Hajnoczi <stefanha@redhat.com> | 2016-03-22 23:33:39 -0400 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2016-04-15 17:22:12 +0200 |
| commit | 9bdfb9e8ac9ae3171f0fba4635afda5c90db2a1e (patch) | |
| tree | 5288ee3b40bc1b667368b5615abdd552d187ea43 /block/vpc.c | |
| parent | 0211b9becc0d763e4866e229488cbc700ba64a1f (diff) | |
vpc: use current_size field for XenServer VHD images
The vpc driver has two methods of determining virtual disk size. The
correct one to use depends on the software that generated the image
file. Add the XenServer creator_app signature so that image size is
correctly detected for those images.
Reported-by: Grant Wu <grantwwu@gmail.com>
Reported-by: Spencer Baugh <sbaugh@catern.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Jeff Cody <jcody@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'block/vpc.c')
| -rw-r--r-- | block/vpc.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/block/vpc.c b/block/vpc.c index 5aded1a18b..228f2c96e1 100644 --- a/block/vpc.c +++ b/block/vpc.c @@ -299,6 +299,7 @@ static int vpc_open(BlockDriverState *bs, QDict *options, int flags, * 'qem2' : current_size QEMU (uses current_size) * 'win ' : current_size Hyper-V * 'd2v ' : current_size Disk2vhd + * 'tap\0' : current_size XenServer * * The user can override the table values via drive options, however * even with an override we will still use current_size for images @@ -306,7 +307,8 @@ static int vpc_open(BlockDriverState *bs, QDict *options, int flags, */ use_chs = (!!strncmp(footer->creator_app, "win ", 4) && !!strncmp(footer->creator_app, "qem2", 4) && - !!strncmp(footer->creator_app, "d2v ", 4)) || s->force_use_chs; + !!strncmp(footer->creator_app, "d2v ", 4) && + !!memcmp(footer->creator_app, "tap", 4)) || s->force_use_chs; if (!use_chs || bs->total_sectors == VHD_MAX_GEOMETRY || s->force_use_sz) { bs->total_sectors = be64_to_cpu(footer->current_size) / |