From: "H. Peter Anvin" <hpa@zytor.com>
To: Robert Hancock <hancockr@shaw.ca>
Cc: Yinghai Lu <yhlu.kernel@gmail.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
x86 maintainers <x86@kernel.org>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: [git pull] x86 fixes (NOPL issue)
Date: Fri, 05 Sep 2008 21:07:01 -0700 [thread overview]
Message-ID: <48C201E5.7080703@zytor.com> (raw)
In-Reply-To: <48C200F8.90705@shaw.ca>
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.
-hpa
next prev parent reply other threads:[~2008-09-06 4:07 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <fa.HDZlnwhQIaOU7WkvenWvWDveLiI@ifi.uio.no>
[not found] ` <fa.uHa5kqSRJ8gj0H3r9BmGsTqRvFI@ifi.uio.no>
2008-09-06 4:03 ` [git pull] x86 fixes (NOPL issue) Robert Hancock
2008-09-06 4:07 ` H. Peter Anvin [this message]
2008-09-06 5:50 ` Yinghai Lu
2008-09-06 5:53 ` H. Peter Anvin
2008-09-06 2:22 H. Peter Anvin
2008-09-06 3:01 ` Yinghai Lu
2008-09-08 15:02 ` David Sanders
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