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-rw-r--r--block/vpc.c4
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) /