Re: [PATCH] fuse: mark DAX VMA page protections as decrypted

[Gupta, Pankaj]

> > I started testing this on my AMD system with QEMU and am still working
> > through the configuration details.
> >
> > Did you happen to test this with QEMU under SEV or SEV-SNP as well? If so,
> > would you mind sharing your setup steps or
> >
> > the QEMU/virtio-fs configuration you used?
> >
> >
> > The error I am facing is: device 'vhost-user-fs-pci' does not support
> > ACCESS_PLATFORM when it is enabled.
> >
> > But under SEV-SNP ACCESS_PLATFORM(iommu_platform) is globally enabled and
> > when I manually disable it, guest says:
> >
> > [    8.788217] virtiofs virtio0: device must provide
> > VIRTIO_F_ACCESS_PLATFORM
> I'm not sure what the real solution should be for this, but does this
> hack for QEMU avoid the error?
>
>    https://github.com/AMDESE/qemu/commit/63f103e35f5f3735d10f7618584bd8bb208e2c28

Mike,

Yes, this hack avoids the error, and I was able to get virtio-fs working 
with it.

Thanks for sharing the patch!

Best regards,

Pankaj