linux-kernel - Re: [git pull] x86 fixes (NOPL issue)

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Message-ID: <86802c440809052250h194a3e7dnd088fa1228dff109@mail.gmail.com>
Date:	Fri, 5 Sep 2008 22:50:34 -0700
From:	"Yinghai Lu" <yhlu.kernel@...il.com>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	"Robert Hancock" <hancockr@...w.ca>,
	"Linus Torvalds" <torvalds@...ux-foundation.org>,
	"x86 maintainers" <x86@...nel.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [git pull] x86 fixes (NOPL issue)

On Fri, Sep 5, 2008 at 9:07 PM, H. Peter Anvin <hpa@...or.com> wrote:
> Robert Hancock wrote:
>>>
>>> if so, should only test on VIA chips.
>>
>> The virtual CPUs are more of a problem. They can't be distinguished from
>> the real CPU models they are emulating other than by actually testing.
>
> Right, hence the first-principles test.  In theory we could just execute the
> test on ALL CPUs, but I have excluded family < 6 simply because there is a
> (very) remote possibility one of them might have used that opcode for
> something completely different.

oh, is the one that is going to fix booting with VirtualBox?

YH
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