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From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Mon, 23 Jul 2012 17:27:50 +1000
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Subject: Re: [Qemu-devel] [Qemu-ppc] [PATCH 2/2] spapr: Add support for -vga
 option
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To: Anthony Liguori <aliguori@us.ibm.com>
Cc: Alexander Graf <agraf@suse.de>, Li Zhang <zhlcindy@linux.vnet.ibm.com>, qemu-devel@nongnu.org, Li Zhang <zhlcindy@gmail.com>, qemu-ppc <qemu-ppc@nongnu.org>, Andreas =?ISO-8859-1?Q?F=E4rber?= <afaerber@suse.de>, mjg@redhat.com

On Mon, 2012-07-23 at 16:40 +1000, Benjamin Herrenschmidt wrote:
> 
> Note to Matthew: cirrusdrmfb is a LOT SLOWER than offb for a similar
> SW only dumb framebuffer, probably has to do with the way it does the
> "dirty" stuff, not sure ...
> 
> Why not draw directly into the emulated vram ? 

More note to Matthew ... any objection to doing something similar for
qemu "bochs" style framebuffer ? (ia -vga std). This is the preferred
one on ppc, does 32-bpp fine and is generally simpler.

Cheers,
Ben.