linux-kernel - Re: [PATCH 2/2] cpu: intel, amd: mask cleared cpuid features

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Message-ID: <500992D3.8080108@zytor.com>
Date:	Fri, 20 Jul 2012 10:18:11 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Andi Kleen <ak@...ux.intel.com>
CC:	Vladimir Davydov <vdavydov@...allels.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	Borislav Petkov <borislav.petkov@....com>, x86@...nel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] cpu: intel, amd: mask cleared cpuid features

On 07/20/2012 10:10 AM, Andi Kleen wrote:
> 
> And please use rdmsrl(), rdmsr() is so 90ies
> 

rdmsr()/wrmsr() make more sense in cases like this where the upper and
lower halves of the MSR actually contain separate data.

	-hpa

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