From: Borislav Petkov <borislav.petkov@amd.com>
To: Kevin Winchester <kjwinchester@gmail.com>
Cc: Mikael Pettersson <mikpe@it.uu.se>,
Borislav Petkov <petkovbb@googlemail.com>,
Ingo Molnar <mingo@elte.hu>, LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v3] x86: clear incorrectly forced X86_FEATURE_LAHF_LM flag
Date: Thu, 13 Aug 2009 14:23:37 +0200 [thread overview]
Message-ID: <20090813122337.GB7029@aftab> (raw)
In-Reply-To: <4A8349F6.9080107@gmail.com>
Hi Kevin,
On Wed, Aug 12, 2009 at 08:02:14PM -0300, Kevin Winchester wrote:
> So that feature is definitely set.
thanks for testing. As a reply to that follow two patches for you to
test. The one is adding some more msr functionality and the second is
based on your original one which should in addition turn off the cpuid
bit. Please apply, compile, reboot and run the small app again to verify
that ECX[0] is now off.
Let me know how it goes.
Thanks.
--
Regards/Gruss,
Boris.
Operating | Advanced Micro Devices GmbH
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Research | Geschäftsführer: Thomas M. McCoy, Giuliano Meroni
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next prev parent reply other threads:[~2009-08-13 12:23 UTC|newest]
Thread overview: 80+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-08-08 11:53 [PATCH] x86: clear incorrectly forced X86_FEATURE_LAHF_LM flag Kevin Winchester
2009-08-08 15:20 ` Borislav Petkov
2009-08-08 15:42 ` Ingo Molnar
2009-08-08 16:15 ` Ingo Molnar
2009-08-08 22:06 ` Kevin Winchester
2009-08-08 23:17 ` [PATCH v2] " Kevin Winchester
2009-08-10 13:12 ` Borislav Petkov
2009-08-10 22:56 ` [PATCH v3] " Kevin Winchester
2009-08-11 9:44 ` Borislav Petkov
2009-08-11 11:36 ` [tip:x86/urgent] x86: Clear " tip-bot for Kevin Winchester
2009-08-11 14:37 ` [PATCH v3] x86: clear " Mikael Pettersson
2009-08-11 14:56 ` Kevin Winchester
2009-08-11 15:51 ` Borislav Petkov
2009-08-11 15:55 ` Kevin Winchester
2009-08-11 16:01 ` Borislav Petkov
2009-08-12 0:15 ` Kevin Winchester
2009-08-12 11:40 ` Borislav Petkov
2009-08-12 23:02 ` Kevin Winchester
2009-08-13 12:23 ` Borislav Petkov [this message]
2009-08-13 12:31 ` [PATCH 1/2] x86, msr: Add an AMD wrmsr with exception handling Borislav Petkov
2009-08-13 12:31 ` [PATCH 2/2] x86: Clear incorrectly forced X86_FEATURE_LAHF_LM flag Borislav Petkov
2009-08-13 14:21 ` Brian Gerst
2009-08-13 14:54 ` Kevin Winchester
2009-08-13 15:55 ` Brian Gerst
2009-08-13 16:18 ` Borislav Petkov
2009-08-13 22:45 ` Kevin Winchester
2009-08-13 15:54 ` Borislav Petkov
2009-08-13 14:57 ` [PATCH v3] x86: clear " Kevin Winchester
2009-08-13 23:24 ` Kevin Winchester
2009-08-14 12:00 ` Borislav Petkov
2009-08-14 12:06 ` [PATCH 1/2] x86, msr: Add a AMD wrmsr with exception handling Borislav Petkov
2009-08-15 17:06 ` [tip:x86/urgent] " tip-bot for Borislav Petkov
2009-08-14 12:06 ` [PATCH 2/2] x86, AMD: Disable wrongly set X86_FEATURE_LAHF_LM CPUID bit Borislav Petkov
2009-08-15 17:06 ` [tip:x86/urgent] " tip-bot for Borislav Petkov
2009-08-16 6:41 ` Ingo Molnar
2009-08-16 20:10 ` Kevin Winchester
2009-08-16 20:51 ` Ingo Molnar
2009-08-16 21:49 ` Borislav Petkov
2009-08-21 17:40 ` H. Peter Anvin
2009-08-22 16:37 ` Borislav Petkov
2009-08-24 20:34 ` H. Peter Anvin
2009-08-25 5:52 ` Borislav Petkov
2009-08-25 6:44 ` H. Peter Anvin
2009-08-30 11:43 ` Borislav Petkov
2009-08-30 11:50 ` [PATCH 1/3] x86, msr: add rd/wrmsr interfaces with preset registers Borislav Petkov
2009-08-30 11:50 ` [PATCH 2/3] x86, msr: rewrite AMD rd/wrmsr variants Borislav Petkov
2009-08-30 20:03 ` H. Peter Anvin
2009-08-30 20:46 ` Borislav Petkov
2009-08-30 20:04 ` H. Peter Anvin
2009-08-30 11:50 ` [PATCH 3/3] x86, AMD: Disable wrongly set X86_FEATURE_LAHF_LM CPUID bit Borislav Petkov
2009-08-30 19:22 ` H. Peter Anvin
2009-08-30 19:30 ` Borislav Petkov
2009-08-30 20:02 ` H. Peter Anvin
2009-08-30 20:29 ` Borislav Petkov
2009-08-30 20:48 ` H. Peter Anvin
2009-08-31 7:34 ` Borislav Petkov
2009-08-31 7:50 ` [PATCH 1/3] x86, msr: add rd/wrmsr interfaces with preset registers Borislav Petkov
2009-08-31 23:37 ` [tip:x86/cpu] x86, msr: Add " tip-bot for Borislav Petkov
2009-09-01 11:05 ` Ingo Molnar
2009-09-01 13:06 ` Borislav Petkov
2009-09-04 14:08 ` Ingo Molnar
2009-09-04 16:26 ` H. Peter Anvin
2009-09-04 17:06 ` [tip:x86/cpu] x86, msr: change msr-reg.o to obj-y, and export its symbols tip-bot for H. Peter Anvin
2009-09-05 9:57 ` Borislav Petkov
2009-09-06 4:41 ` H. Peter Anvin
2009-08-31 23:38 ` [tip:x86/cpu] x86, msr: CFI annotations, cleanups for msr-reg.S tip-bot for H. Peter Anvin
2009-09-03 22:55 ` [PATCH 1/3] x86, msr: add rd/wrmsr interfaces with preset registers Andrew Morton
2009-09-03 22:57 ` H. Peter Anvin
2009-09-03 23:14 ` Andrew Morton
2009-09-03 23:22 ` H. Peter Anvin
2009-09-04 6:39 ` Ingo Molnar
2009-09-04 8:27 ` Borislav Petkov
2009-08-31 7:50 ` [PATCH 2/3] x86, msr: rewrite AMD rd/wrmsr variants Borislav Petkov
2009-08-31 23:37 ` [tip:x86/cpu] x86, msr: Rewrite " tip-bot for Borislav Petkov
2009-08-31 7:50 ` [PATCH 3/3] x86, AMD: Disable wrongly set X86_FEATURE_LAHF_LM CPUID bit Borislav Petkov
2009-08-31 23:37 ` [tip:x86/cpu] " tip-bot for Borislav Petkov
2009-08-31 8:14 ` [PATCH 3/3] " Borislav Petkov
2009-08-31 18:03 ` H. Peter Anvin
2009-08-30 17:07 ` [tip:x86/urgent] " H. Peter Anvin
2009-08-30 19:17 ` Borislav Petkov
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