From: Gerd Hoffmann <kraxel@redhat.com>
To: Jiandi An <jiandi@amd.com>
Cc: Dave Airlie <airlied@gmail.com>,
dri-devel <dri-devel@lists.freedesktop.org>,
"virtio-dev@lists.oasis-open.org"
<virtio-dev@lists.oasis-open.org>, Dave Airlie <airlied@linux.ie>,
"open list:VIRTIO CORE,
NET..." <virtualization@lists.linux-foundation.org>,
LKML <linux-kernel@vger.kernel.org>,
"Lendacky, Thomas" <Thomas.Lendacky@amd.com>,
"Singh, Brijesh" <brijesh.singh@amd.com>
Subject: Re: [virtio-dev] [PATCH 2/2] drm/virtio: add iommu support.
Date: Fri, 21 Sep 2018 07:47:52 +0200 [thread overview]
Message-ID: <20180921054752.gjeaznoboqf2giit@sirius.home.kraxel.org> (raw)
In-Reply-To: <95778dd4-8aca-eff6-f84a-c8efdd3b355d@amd.com>
Hi,
> > Just pass it down, the call sites all know it (see patch just sent).
>
> Tested that patch you sent. Together with this patch it also resolves
> the virtio gpu graphical display issue for SEV guest.
Cool. Can you ack or review the patch so I can commit it?
> Is there a way to optimize the dma_sync_sg to only sync on the pages
> being updated instead of all the pages in the obj sgl list every time?
Well, the rectangle is passed to virtio_gpu_cmd_transfer_to_host_2d, so
it should be possible to figure which pages are affected and trim the
scatter list accordingly.
cheers,
Gerd
prev parent reply other threads:[~2018-09-21 5:47 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20180829122026.27012-1-kraxel@redhat.com>
2018-08-29 12:20 ` [PATCH 1/2] drm/virtio: add virtio_gpu_object_detach() function Gerd Hoffmann
2018-08-29 12:20 ` [PATCH 2/2] drm/virtio: add iommu support Gerd Hoffmann
2018-09-03 23:50 ` [virtio-dev] " Dave Airlie
2018-09-12 6:52 ` Jiandi An
2018-09-12 7:25 ` Gerd Hoffmann
2018-09-18 17:51 ` Jiandi An
2018-09-19 4:46 ` Gerd Hoffmann
2018-09-19 7:15 ` Jiandi An
2018-09-19 11:38 ` Gerd Hoffmann
2018-09-19 22:06 ` Jiandi An
2018-09-20 6:32 ` Gerd Hoffmann
2018-09-21 4:58 ` Jiandi An
2018-09-21 5:47 ` Gerd Hoffmann [this message]
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