linux-kernel - Re: [PATCH 1/2] kvm tools: fix repeated io emulation

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Message-ID: <4E4D2AEC.8050601@redhat.com>
Date:	Thu, 18 Aug 2011 08:08:28 -0700
From:	Avi Kivity <avi@...hat.com>
To:	Sasha Levin <levinsasha928@...il.com>
CC:	Pekka Enberg <penberg@...nel.org>,
	Xiao Guangrong <xiaoguangrong@...fujitsu.com>,
	Marcelo Tosatti <mtosatti@...hat.com>,
	Ingo Molnar <mingo@...e.hu>,
	LKML <linux-kernel@...r.kernel.org>, KVM <kvm@...r.kernel.org>
Subject: Re: [PATCH 1/2] kvm tools: fix repeated io emulation

On 08/18/2011 12:35 AM, Sasha Levin wrote:
> On Thu, 2011-08-18 at 09:13 +0300, Pekka Enberg wrote:
> >  Hi,
> >
> >  On Thu, Aug 18, 2011 at 6:06 AM, Xiao Guangrong
> >  <xiaoguangrong@...fujitsu.com>  wrote:
> >  >  When kvm emulates repeation io read instruction, it can exit to user-space with
> >  >  'count'>  1, we need to emulate io access for many times
> >  >
> >  >  Signed-off-by: Xiao Guangrong<xiaoguangrong@...fujitsu.com>
> >
> >  The KVM tool is not actually maintained by Avi and Marcelo but by me
> >  and few others. Our git repository is here:
> >
> >  https://github.com/penberg/linux-kvm
> >
> >  Ingo pulls that to -tip few times a week or so. Sasha, can you please
> >  take a look at these patches and if you're OK with them, I'll apply
> >  them.
>
> Pekka,
>
> I can only assume they're right, 'count' isn't documented anywhere :)
>
> If any of KVM maintainers could confirm it I'll add it into the docs.
>

Count is indeed the number of repetitions.

-- 
I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.

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