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SubjectRe: [PATCH RFC v1 15/15] iommu/virtio: Update fault type and reason info for viommu fault
On Fri, Mar 12, 2021 at 06:39:05PM +0530, Vivek Kumar Gautam wrote:
> To complete the page request we would also need to send the response back to
> the host from virtio backend when handling page request. So the virtio
> command should also be accompanied with a vfio api to send the page request
> response back to the host. Isn't it?
> This is where the host smmuv3 can send PRI_RESP command to the device to
> complete the page fault.

It looks like Eric already has this in the VFIO series:
https://lore.kernel.org/linux-iommu/20210223210625.604517-14-eric.auger@redhat.com/

Thanks,
Jean

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