Re: [PATCH v4 5/5] vpci: add SR-IOV support for DomUs

[Jason Andryuk <jason.andryuk@amd.com>]

On 2026-10-15 10:08, Mykyta Poturai wrote:
> From: Stewart Hildebrand <stewart.hildebrand@amd.com>
> 
> Emulate guest BAR register values based on PF BAR values for VFs.
> This allows creating a guest view of the normal BAR registers and emulates
> the size and properties as it is done during PCI device enumeration by
> the guest.
> 
> Expose VID/DID and class/revision to the guest.
> 
> Note, that VFs ROM BAR is read-only and is all zeros, but VF may provide
> access to the PFs ROM via emulation and is not implemented.
> 
> Note this only removes one of the gaps on the way to vPCI DomU support;
> VFs are not usable in DomUs until the rest of it is upstream. The DomU
> testing behind this patch used out-of-tree vPCI DomU patches.
> 
> Signed-off-by: Stewart Hildebrand <stewart.hildebrand@amd.com>
> Signed-off-by: Mykyta Poturai <mykyta_poturai@epam.com>
Reviewed-by: Jason Andryuk <jason.andryuk@amd.com>

Thanks,
Jason