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authorKevin Wolf <kwolf@redhat.com>2015-02-11 17:19:57 +0100
committerMichael Roth <mdroth@linux.vnet.ibm.com>2015-03-08 22:58:14 -0500
commitc70221df1f89953e85a3f1f96ceefbd6888bb55f (patch)
treeef6376d06edddfca6a66f26646d30381a7cdf1d3
parent07db6859abffa79db6290a5f9f4dfdf93148189f (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> (cherry picked from commit c7dd631d482912fd615a9ef18a0e0691e7a84836) Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.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 38c4f02fff..40baa64385 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;