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From: "H. Peter Anvin" <hpa@zytor.com>
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
Date: Tue, 14 Apr 2009 09:07:48 -0700	[thread overview]
Message-ID: <49E4B4D4.1020903@zytor.com> (raw)
In-Reply-To: <49E45894.7090700@redhat.com>

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.


  reply	other threads:[~2009-04-14 16:08 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-04-13 20:06 [PATCH] deal with interrupt shadow state for emulated instruction Glauber Costa
2009-04-14  9:07 ` Gleb Natapov
2009-04-14  9:34 ` Avi Kivity
2009-04-14 16:07   ` H. Peter Anvin [this message]
2009-04-14 16:14     ` Avi Kivity
2009-04-14 16:25       ` H. Peter Anvin
2009-04-16  9:18         ` Avi Kivity
2009-04-16 22:40           ` H. Peter Anvin
2009-04-19  8:26             ` Avi Kivity
2009-04-14 17:31       ` Alan Cox
2009-04-14 17:32         ` H. Peter Anvin
  -- strict thread matches above, loose matches on Subject: below --
2009-05-05 18:40 Glauber Costa
2009-05-06  8:03 ` Gleb Natapov
2009-05-06 10:51   ` Avi Kivity
2009-05-08  5:25     ` Glauber Costa
2009-05-08  7:18       ` Gleb Natapov
2009-05-08 13:02         ` Glauber Costa
2009-04-28 14:30 Glauber Costa
2009-04-30 11:50 ` Avi Kivity
2009-05-05 13:57   ` Glauber Costa
2009-04-08 21:42 Glauber Costa
2009-04-11 16:37 ` Avi Kivity
2009-04-11 21:15   ` H. Peter Anvin

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