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Re: [Qemu-devel] [6391] Fix nographic mode and VNC

From: Jamie Lokier
Subject: Re: [Qemu-devel] [6391] Fix nographic mode and VNC
Date: Sun, 25 Jan 2009 19:57:22 +0000
User-agent: Mutt/1.5.13 (2006-08-11) 
Paul Brook wrote:
> Maybe. You risk having to put an SMP safe lock in the MMIO handler, which 
> would probably do bad things to performance.

Would it?  It's just one atomic operation in the non-contention case,
and MMIO writes could be queued the same way that KVM queues them,
without needing locks for each individual op.

-- Jamie
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