Re: [PATCH v1 01/14] iommu: Add iommu_get_unmanaged_domain helper

Jason Gunthorpe
2023-03-10T16:25:36Z

On Fri, Mar 10, 2023 at 04:07:38PM +0000, Shameerali Kolothum Thodi wrote:
> > https://lore.kernel.org/linux-arm-kernel/20220420164836.1181-5-shameer
> > > ali.kolothum.thodi@huawei.com/
> >
> > So "boot configration" is more like "don't change the RIDs"? Ie don't enable
> > SRIOV?
>
> Yes. Don't think it will work with SR-IOV if you can't guarantee the RMR specified
> SID.

So I think we are probably good them because vSR-IOV is already not
supported by qemu, so it impossible for a VM to change the PCI
configuration in a way that would alter the RID to SID mapping?

Jason