Message-ID: <49E4B4D4.1020903@zytor.com>
Date: Tue, 14 Apr 2009 09:07:48 -0700
From: "H. Peter Anvin" <hpa@zytor.com>
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To: Avi Kivity <avi@redhat.com>
CC: Glauber Costa <glommer@redhat.com>, kvm@vger.kernel.org,
       linux-kernel@vger.kernel.org
Subject: Re: [PATCH] deal with interrupt shadow state for emulated instruction
References: <1239653210-10422-1-git-send-email-glommer@redhat.com> <49E45894.7090700@redhat.com>
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Avi Kivity wrote:
> 
> The comment about repeating 'mov ss' in the manual has that wonderful
> word in it, May.  That means we're perfectly allowed to ignore it and
> just set the flag unconditionally.
> 

Realistically, though, this should only be done for a limited number of
sequential instructions.

> I doubt we'll ever see a repeated 'mov ss', once is more than enough.

True enough, except maliciously.

	-hpa

-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.

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