linux-kernel - Re: [Qemu-devel] Re: [PATCH] Implement a virtio GPU transport

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Message-ID: <4CC9D472.2080109@collabora.co.uk>
Date:	Thu, 28 Oct 2010 20:52:18 +0100
From:	Ian Molton <ian.molton@...labora.co.uk>
To:	Avi Kivity <avi@...hat.com>
CC:	virtualization@...ts.osdl.org, linux-kernel@...r.kernel.org,
	QEMU Developers <qemu-devel@...gnu.org>
Subject: Re: [Qemu-devel] Re: [PATCH] Implement a virtio GPU transport

On 28/10/10 15:24, Avi Kivity wrote:
>> The caller is intended to block as the host must perform GL rendering
>> before allowing the guests process to continue.
>
> Why is that?  Can't we pipeline the process?

No, not really. the guest may call for the scene to be rendered at any 
time and we have to wait for that to happen before we can return the 
data to it.

-Ian
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