Re: [PATCH 2/2] tpm_crb: mark memory as protected

[Laurent Vivier]

On 6/21/23 11:13, David Hildenbrand wrote:
> On 20.06.23 21:50, Laurent Vivier wrote:
> > This memory is not correctly aligned and cannot be registered
> > by vDPA and VFIO.
> >
> > An error is reported for vhost-vdpa case:
> > qemu-kvm: vhost_vdpa_listener_region_add received unaligned region
> >
> > To make it ignored by VFIO and vDPA devices, mark it as RAM_PROTECTED.
>
> So, VFIO will simply skip these sections via vfio_listener_valid_section() I 
> guess.
>
> Yes, it will report an error but it will happily continue.
>
> So regarding vDPA, we're also only concerned about removing the reported error, everything 
> else works as expected?

Yes, it has been tested and vDPA works as expected.

Thanks,
Laurent