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[Qemu-devel] [PATCH] vpc: Fix size in fixed image creation
From: |
Kevin Wolf |
Subject: |
[Qemu-devel] [PATCH] vpc: Fix size in fixed image creation |
Date: |
Wed, 11 Feb 2015 17:22:25 +0100 |
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 <address@hidden>
---
block/vpc.c | 10 +++-------
1 file changed, 3 insertions(+), 7 deletions(-)
diff --git a/block/vpc.c b/block/vpc.c
index 379ff4a..46830ee 100644
--- a/block/vpc.c
+++ b/block/vpc.c
@@ -850,6 +850,7 @@ 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);
@@ -871,13 +872,8 @@ 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;
--
1.8.3.1
- [Qemu-devel] [PATCH] vpc: Fix size in fixed image creation,
Kevin Wolf <=