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From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Gerd Hoffmann <kraxel@redhat.com>
Cc: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] vga-pci and MMIO BAR
Date: Tue, 07 Aug 2012 07:07:37 +1000	[thread overview]
Message-ID: <1344287257.24037.103.camel@pasglop> (raw)
In-Reply-To: <501FB2AF.9040908@redhat.com>

On Mon, 2012-08-06 at 14:03 +0200, Gerd Hoffmann wrote:
> Hacked up something like that a while back (patch attached).  Doesn't
> use DRM though, just plain old fbdev.  Maybe you can reuse some bits
> nevertheless.
> 
> /me wonders what the advantage of using drm is for non-3D hardware?

Thanks. Yeah fbdev is easier, but drm makes fedora happy :-)

Also makes things easier to support RandR in X nowadays using KMS APIs
etc... Besides I have evil plans to look at piping GL through the virtio
tube :-)

In fact, I've changed my focus and am now working on a virtio-vga (ie
new device). It still does VBE/VGA legacy (so the BIOS stuff works
etc...), but has BAR 0 as a virtio BAR on which I added a FB BAR.

I'll post more when I have more to show, I'm juggling with many
different things at the moment so it will take time.

Cheers,
Ben.

  reply	other threads:[~2012-08-06 21:07 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-07-25  3:57 [Qemu-devel] vga-pci and MMIO BAR Benjamin Herrenschmidt
2012-07-25 10:27 ` Avi Kivity
2012-07-25 10:53   ` Benjamin Herrenschmidt
2012-07-25 12:48     ` Avi Kivity
2012-07-25 13:41       ` Benjamin Herrenschmidt
2012-07-25 13:59         ` Avi Kivity
2012-07-25 22:01           ` Benjamin Herrenschmidt
2012-07-26  0:22             ` Benjamin Herrenschmidt
2012-07-26  1:08               ` Anthony Liguori
2012-07-26  1:18                 ` Benjamin Herrenschmidt
2012-08-06 12:03 ` Gerd Hoffmann
2012-08-06 21:07   ` Benjamin Herrenschmidt [this message]
2012-08-10 15:27   ` Alon Levy

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