On Wed, Apr 24, 2024 at 02:57:38AM +0000, Tian, Kevin wrote:
> Now those shared capabilities are enabled/disabled when the PF is
> attached to/detached from a domain, w/o counting the shared usage
> from VFs.
Urh..
This looks broken in the kernel right now?
If you attach a SVA PASID to a VF then the iommu driver will call
pci_enable_pri(vf) which will always fail:
/*
* VFs must not implement the PRI Capability. If their PF
* implements PRI, it is shared by the VFs, so if the PF PRI is
* enabled, it is also enabled for the VF.
*/
if (pdev->is_virtfn) {
if (pci_physfn(pdev)->pri_enabled)
return 0;
return -EINVAL;
}
More to fix :(
Jason
