On Fri, Jun 01, 2018 at 12:01:26PM -0500, Venu Busireddy wrote: > On 2018-06-01 18:42:06 +0300, Michael S. Tsirkin wrote: > > On Wed, May 23, 2018 at 11:16:12AM -0400, Venu Busireddy wrote: > > > During live migration involving passthrough devices, the guest needs > > > to know which virtio device will be a fail-over device for a given > > > passthrough device. > > > > > > Extending the virtio specification with a new "Group Identifier" > > > capability allows qemu to set up the grouping at the time the guest > > > is created. The "Group Identifier" can be as simple as a number, or an > > > UUID. The driver can use the group identifier to pair the virtio device > > > with the passthrough device. The passthrough device can contain the > > > group identifier in the PCIe bridge to which it is attached. > > > > > > Venu Busireddy (1): > > > Add "Group Identifier" to virtio PCI capabilities. > > > > > > content.tex | 43 +++++++++++++++++++++++++++++++++++++++++++ > > > 1 file changed, 43 insertions(+) > > > > Is this a PCI thing, or can this somehow be used with non-PCI > > This is applicable to all virtio PCI devices, but not to non-PCI > devices. > > > devices? If PCI, we can just add a PCI UUID capability to > > virtio without need to worry about the spec. > > What is a "PCI UUID capability?" "PCI Local Bus Specification > Revision 3.0, Appendix H" does not list any such capability. > > Regards, > > Venu
Sorry that I'm unclear. What I meant is the PCI Express serial number capability (0003h). -- MST --------------------------------------------------------------------- To unsubscribe, e-mail: virtio-dev-unsubscr...@lists.oasis-open.org For additional commands, e-mail: virtio-dev-h...@lists.oasis-open.org