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authorJeff Cody <jcody@redhat.com>2014-12-08 01:07:43 -0500
committerStefan Hajnoczi <stefanha@redhat.com>2014-12-12 15:42:22 +0000
commita9d1e9daa5527101c0b2dcf1a57aab549075144a (patch)
tree13e2f25b66631c7a64219504fc74fbe29c38d654 /qemu-doc.texi
parent0571df44a1bf810113037abd14c13afd448601c9 (diff)
block: vhdx - update PAYLOAD_BLOCK_UNMAPPED value to match 1.00 spec
The 0.95 VHDX spec defined PAYLOAD_BLOCK_UNMAPPED to be 5. The 1.00 VHDX spec redefines PAYLOAD_BLOCK_UNMAPPED to be 3 instead. The original value of 5 is now an undefined state in the spec, but it should be safe to treat it the same and return zeros for data read. This way, we can maintain compatibility with any images out in the wild that may have been created in accordance to the 0.95 spec. Reported-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Jeff Cody <jcody@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Message-id: 8a4d2da73a8dbc04cde62bea782fc09ff84b1cf1.1418018421.git.jcody@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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