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[Qemu-devel] Re: [PATCH v3 1/1] Shared memory uio_pci driver


From: Michael S. Tsirkin
Subject: [Qemu-devel] Re: [PATCH v3 1/1] Shared memory uio_pci driver
Date: Thu, 25 Mar 2010 11:44:48 +0200
User-agent: Mutt/1.5.19 (2009-01-05)

On Thu, Mar 25, 2010 at 11:40:09AM +0200, Avi Kivity wrote:
> On 03/25/2010 11:15 AM, Michael S. Tsirkin wrote:
>>
>> - Why are you using 32 bit long memory accesses for interrupts?
>>    16 bit IO eould be enough and it's faster. This what virtio-pci does.
>>
>>    
>
> Why is 16 bit io faster?

Something to do with need for emulation to get address/data
for pci memory accesses?

> -- 
> error compiling committee.c: too many arguments to function




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