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authorMichael S. Tsirkin <mst@redhat.com>2017-02-15 22:37:45 +0200
committerMichael S. Tsirkin <mst@redhat.com>2017-02-17 21:52:30 +0200
commit4bb571d857d973d9308d9fdb1f48d983d6639bd4 (patch)
tree54c49f59e558520ae770603ce4d01762b656db00 /hw/net/virtio-net.c
parentad584d37f2a86b392c25f3f00cc1f1532676c2d1 (diff)
downloadfocaccia-qemu-4bb571d857d973d9308d9fdb1f48d983d6639bd4.tar.gz
focaccia-qemu-4bb571d857d973d9308d9fdb1f48d983d6639bd4.zip
pci/pcie: don't assume cap id 0 is reserved
VFIO actually wants to create a capability with ID == 0.
This is done to make guest drivers skip the given capability.
pcie_add_capability then trips up on this capability
when looking for end of capability list.

To support this use-case, it's easy enough to switch to
e.g. 0xffffffff for these comparisons - we can be sure
it will never match a 16-bit capability ID.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Alex Williamson <alex.williamson@redhat.com>
Diffstat (limited to 'hw/net/virtio-net.c')
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