On 09/12/2016 10:51 AM, Cornelia Huck wrote:
On Sat, 10 Sep 2016 10:23:37 +0200
Maxime Coquelin <address@hidden> wrote:
Currently, devices are plugged before features are negotiated.
If the backend doesn't support VIRTIO_F_VERSION_1, the transport
need to rewind some settings.
This is the case for CCW, for which a post_plugged callback had
been introduced, where max_rev field is just updated if
VIRTIO_F_VERSION_1 is not supported by the backend.
For PCI, implementing the post_plugged would be much more
s/the//
complicated, so it needs to know whether the backend supports
VIRTIO_F_VERSION_1 at plug time.
Currently, nothing is done for PCI. Modern capabilitities get
exposed to the guest even if VIRTIO_F_VERSION_1 is not supported
by the backend, which confuses the guest.
This patch proposes to replace existing post_plugged solution
Nit: The patch does not propose anything, it just does it :)
Michael,
Should I send a v2 fixing the above comments, or you can handle them
when applying the patch?
Thanks,
Maxime