From: "Michael S. Tsirkin" <mst@redhat.com>
To: Gerd Hoffmann <kraxel@redhat.com>
Cc: virtio-dev@lists.oasis-open.org, Dave Airlie <airlied@gmail.com>,
Dave Airlie <airlied@redhat.com>, David Airlie <airlied@linux.ie>,
Rusty Russell <rusty@rustcorp.com.au>,
open list <linux-kernel@vger.kernel.org>,
"open list:DRM DRIVERS" <dri-devel@lists.freedesktop.org>,
"open list:VIRTIO CORE,
NET..." <virtualization@lists.linux-foundation.org>,
"open list:ABI/API" <linux-api@vger.kernel.org>
Subject: Re: [PATCH] Add virtio gpu driver.
Date: Wed, 25 Mar 2015 18:09:06 +0100 [thread overview]
Message-ID: <20150325180721-mutt-send-email-mst@redhat.com> (raw)
In-Reply-To: <1427297836.23304.29.camel@nilsson.home.kraxel.org>
On Wed, Mar 25, 2015 at 04:37:16PM +0100, Gerd Hoffmann wrote:
> Hi,
>
> > BTW can we teach virtio-gpu to look for framebuffer using
> > virtio pci caps?
>
> The virtio-gpu driver doesn't matter much here, it doesn't use it
> anyway.
>
> > Or are there limitations such as only
> > using IO port BARs, or compatibility with
> > BIOS code etc that limit us to specific BARs anyway?
>
> Yes, vgabios code needs to know. Currently it has bar #2 for the vga
> framebuffer bar hardcoded. It's 16bit code. I don't feel like making
> the probing more complicated ...
>
> cheers,
> Gerd
OK - you are saying all VGA cards use bar #2 for this
functionality, so we are just following
established practice here?
--
MST
next prev parent reply other threads:[~2015-03-25 17:09 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-24 16:07 [PATCH] Add virtio gpu driver Gerd Hoffmann
2015-03-24 16:15 ` Michael S. Tsirkin
2015-03-25 14:52 ` Gerd Hoffmann
2015-03-25 15:24 ` Michael S. Tsirkin
2015-03-25 15:37 ` Gerd Hoffmann
2015-03-25 17:09 ` Michael S. Tsirkin [this message]
2015-03-26 7:12 ` Gerd Hoffmann
2015-03-26 8:18 ` Michael S. Tsirkin
2015-03-26 8:42 ` [virtio-dev] " Gerd Hoffmann
2015-03-26 9:04 ` Michael S. Tsirkin
2015-03-26 11:38 ` Gerd Hoffmann
2015-03-26 11:53 ` Michael S. Tsirkin
2015-03-26 15:07 ` Gerd Hoffmann
2015-03-26 16:47 ` Michael S. Tsirkin
2015-03-27 8:08 ` Gerd Hoffmann
2015-03-24 16:50 ` Daniel Vetter
2015-03-25 14:53 ` Gerd Hoffmann
2015-03-26 8:53 ` Daniel Vetter
2015-03-30 12:23 ` Gerd Hoffmann
2015-03-30 14:49 ` Daniel Vetter
2016-05-25 16:40 ` Daniel Vetter
2016-05-25 16:44 ` Emil Velikov
2016-05-27 7:48 ` Gerd Hoffmann
2016-05-27 9:03 ` Daniel Vetter
2016-05-30 13:50 ` Gerd Hoffmann
2016-05-30 14:47 ` Daniel Vetter
2016-05-31 6:29 ` Gerd Hoffmann
2016-05-31 6:55 ` Daniel Vetter
2016-05-31 7:00 ` Pekka Paalanen
2015-03-24 17:04 ` Michael S. Tsirkin
2015-03-24 20:47 ` Paul Bolle
2015-03-24 22:50 ` Daniel Stone
2015-03-25 0:00 ` Dave Airlie
2015-03-25 15:19 ` Gerd Hoffmann
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