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authorKevin Wolf <kwolf@redhat.com>2015-02-11 17:19:57 +0100
committerKevin Wolf <kwolf@redhat.com>2015-03-09 11:11:59 +0100
commit3f3f20dcd34fc2fcf6dea2fe4e9b45d1c4d67288 (patch)
treeb746ac7b76df5f160f39c522023bde3a47527812
parent7c2eed3efa86c19436bc33372bfa9d7fbb6fda2c (diff)
vpc: Fix size in fixed image creation
If total_sectors is rounded to match the geometry, total_size needs to be changed as well. Otherwise we end up with an image whose geometry describes a disk larger than the image file, which doesn't end well. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
-rw-r--r--block/vpc.c10
1 files changed, 3 insertions, 7 deletions
diff --git a/block/vpc.c b/block/vpc.c
index 46803b14be..7fddbf0b75 100644
--- a/block/vpc.c
+++ b/block/vpc.c
@@ -801,6 +801,7 @@ static int vpc_create(const char *filename, QemuOpts *opts, Error **errp)
}
total_sectors = (int64_t) cyls * heads * secs_per_cyl;
+ total_size = total_sectors * BDRV_SECTOR_SIZE;
/* Prepare the Hard Disk Footer */
memset(buf, 0, 1024);
@@ -822,13 +823,8 @@ static int vpc_create(const char *filename, QemuOpts *opts, Error **errp)
/* Version of Virtual PC 2007 */
footer->major = cpu_to_be16(0x0005);
footer->minor = cpu_to_be16(0x0003);
- if (disk_type == VHD_DYNAMIC) {
- footer->orig_size = cpu_to_be64(total_sectors * 512);
- footer->size = cpu_to_be64(total_sectors * 512);
- } else {
- footer->orig_size = cpu_to_be64(total_size);
- footer->size = cpu_to_be64(total_size);
- }
+ footer->orig_size = cpu_to_be64(total_size);
+ footer->size = cpu_to_be64(total_size);
footer->cyls = cpu_to_be16(cyls);
footer->heads = heads;
footer->secs_per_cyl = secs_per_cyl;