Re: [tip:x86/urgent] x86, AMD: Disable wrongly set X86_FEATURE_LAHF_LM CPUID bit
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- Subject: Re: [tip:x86/urgent] x86, AMD: Disable wrongly set X86_FEATURE_LAHF_LM CPUID bit
- From: Borislav Petkov <petkovbb@xxxxxxxxxxxxxx>
- Date: Sun, 30 Aug 2009 21:17:54 +0200
- Cc: Ingo Molnar <mingo@xxxxxxx>, mingo@xxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, kjwinchester@xxxxxxxxx, tglx@xxxxxxxxxxxxx, borislav.petkov@xxxxxxx, linux-tip-commits@xxxxxxxxxxxxxxx
- In-reply-to: <4A9AB1D0.7000403@xxxxxxxxx>
- Mail-followup-to: Borislav Petkov <petkovbb@xxxxxxxxxxxxxx>, "H. Peter Anvin" <hpa@xxxxxxxxx>, Ingo Molnar <mingo@xxxxxxx>, mingo@xxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, kjwinchester@xxxxxxxxx, tglx@xxxxxxxxxxxxx, borislav.petkov@xxxxxxx, linux-tip-commits@xxxxxxxxxxxxxxx
- References: <tip-c74cb13b94118ec89e48849806356b67caa5ff86@xxxxxxxxxxxxxx> <20090816064132.GA16278@xxxxxxx> <20090816214934.GB7765@xxxxxxxxxxxx> <4A8EDC02.8000508@xxxxxxxxx> <20090822163750.GA31631@xxxxxxxxxxxx> <4A92F93F.8000502@xxxxxxxxx> <20090825055215.GA22595@xxxxxxxxxxxx> <4A93884E.3000403@xxxxxxxxx> <20090830114329.GA9038@xxxxxxxxxxxx> <4A9AB1D0.7000403@xxxxxxxxx>
- User-agent: Mutt/1.5.20 (2009-06-14)
On Sun, Aug 30, 2009 at 10:07:28AM -0700, H. Peter Anvin wrote:
> Looks good... there are a few minor tweaks to the assembly (in
> particular, if we're going to do the single file with a macro then the
> macro invocation should be outside the architecture #ifdef; second, I
> realized a better implementation of the 64-bit code after I sent you
> the email) but I can take care of this.
Cool. Could you please move the macro invocations too then, while you're
at it.
> This is for .32, right?
Yep, I'd like to play it safe here so let's have it properly tested
first. I will backport it to .31 and at least .30 later.
Thanks.
--
Regards/Gruss,
Boris.
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- References:
- [tip:x86/urgent] x86, AMD: Disable wrongly set X86_FEATURE_LAHF_LM CPUID bit
- From: tip-bot for Borislav Petkov
- Re: [tip:x86/urgent] x86, AMD: Disable wrongly set X86_FEATURE_LAHF_LM CPUID bit
- Re: [tip:x86/urgent] x86, AMD: Disable wrongly set X86_FEATURE_LAHF_LM CPUID bit
- Re: [tip:x86/urgent] x86, AMD: Disable wrongly set X86_FEATURE_LAHF_LM CPUID bit
- Re: [tip:x86/urgent] x86, AMD: Disable wrongly set X86_FEATURE_LAHF_LM CPUID bit
- Re: [tip:x86/urgent] x86, AMD: Disable wrongly set X86_FEATURE_LAHF_LM CPUID bit
- Re: [tip:x86/urgent] x86, AMD: Disable wrongly set X86_FEATURE_LAHF_LM CPUID bit
- Re: [tip:x86/urgent] x86, AMD: Disable wrongly set X86_FEATURE_LAHF_LM CPUID bit
- Re: [tip:x86/urgent] x86, AMD: Disable wrongly set X86_FEATURE_LAHF_LM CPUID bit
- Re: [tip:x86/urgent] x86, AMD: Disable wrongly set X86_FEATURE_LAHF_LM CPUID bit
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