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openSUSE:Evergreen:11.4
virt-utils.import5774
qemu-img-git-vpc-fix.patch
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File qemu-img-git-vpc-fix.patch of Package virt-utils.import5774
Subject: block: Fix vpc initialization of the Dynamic Disk Header From: Charles Arnold carnold@suse.com Wed Nov 9 09:32:25 2011 -0700 Date: Fri Nov 11 14:02:58 2011 +0100: Git: 78439f6af1caa3e8bdafc9fc2d62aeefa53ed63a The Data Offset field in the Dynamic Disk Header is an 8 byte field. Although the specification (2006-10-11) gives an example of initializing only the first 4 bytes, images generated by Microsoft on Windows initialize all 8 bytes. Failure to initialize all 8 bytes results in errors from utilities like Citrix's vhd-util which checks specifically for the proper Data Offset field initialization. Signed-off-by: Charles Arnold <carnold@suse.com> Reviewed-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Kevin Wolf <kwolf@redhat.com> Index: qemu-0.14.0/block/vpc.c =================================================================== --- qemu-0.14.0.orig/block/vpc.c +++ qemu-0.14.0/block/vpc.c @@ -591,7 +591,11 @@ static int vpc_create(const char *filena memcpy(dyndisk_header->magic, "cxsparse", 8); - dyndisk_header->data_offset = be64_to_cpu(0xFFFFFFFF); + /* + * Note: The spec is actually wrong here for data_offset, it says + * 0xFFFFFFFF, but MS tools expect all 64 bits to be set. + */ + dyndisk_header->data_offset = be64_to_cpu(0xFFFFFFFFFFFFFFFFULL); dyndisk_header->table_offset = be64_to_cpu(3 * 512); dyndisk_header->version = be32_to_cpu(0x00010000); dyndisk_header->block_size = be32_to_cpu(block_size);
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