tree ea4ef20c8014d5222957cef83d4fc62b75c58fd6
parent 3343660d8c62c6b00b2f15324ef3fcb6be207bfa
author Anthony Liguori <aliguori@us.ibm.com> 1201535999 -0600
committer Rusty Russell <rusty@rustcorp.com.au> 1202129412 +1100

virtio: Use PCI revision field to indicate virtio PCI ABI version

As Avi pointed out, as we continue to massage the virtio PCI ABI, we can make
things a little more friendly to users by utilizing the PCI revision field to
indicate which version of the ABI we're using.  This is a hard ABI version
and incrementing it will cause the guest driver to break.

This is the necessary changes to virtio_pci to support this.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>