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Re: [Qemu-devel] [PATCH] Experimental initial patch providing accelerate

From: Paul Brook
Subject: Re: [Qemu-devel] [PATCH] Experimental initial patch providing accelerated OpenGL for Linux i386 (2nd attempt to post)
Date: Fri, 17 Nov 2006 01:25:18 +0000
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> My main remark is that the host/guest communication system must be
> changed and I can help you to implement it. I would prefer to use a PCI
> device and to avoid any i386 dependent code. For the PCI device, using
> the Bochs VGA adapter could be a possible idea. All the parameters and
> data should be transmitted as if the PCI device was doing DMA. A single
> I/O port could be used to start executing a list of OpenGL commands.

I agree, except please make it a memory mapped region rather than an actual IO 
port. This makes it easier to implement on non-x86 architectures. Most CPUs 
don't have a native IO port space like x86 does.


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