[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <YGH+5pHtR6gWnimB@myrica>
Date: Mon, 29 Mar 2021 18:23:02 +0200
From: Jean-Philippe Brucker <jean-philippe@...aro.org>
To: Vivek Kumar Gautam <vivek.gautam@....com>
Cc: linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
iommu@...ts.linux-foundation.org,
virtualization@...ts.linux-foundation.org, joro@...tes.org,
will.deacon@....com, mst@...hat.com, robin.murphy@....com,
eric.auger@...hat.com, alex.williamson@...hat.com,
kevin.tian@...el.com, jacob.jun.pan@...ux.intel.com,
yi.l.liu@...el.com, lorenzo.pieralisi@....com,
shameerali.kolothum.thodi@...wei.com
Subject: Re: [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
Powered by blists - more mailing lists