linux-kernel - Re: [PATCH 1/2] KVM: SVM: Fix NMI path when NMI happens in guest mode

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Message-ID: <20110113155224.GB23914@amd.com>
Date:	Thu, 13 Jan 2011 16:52:24 +0100
From:	"Roedel, Joerg" <Joerg.Roedel@....com>
To:	Jan Kiszka <jan.kiszka@...mens.com>
CC:	Avi Kivity <avi@...hat.com>, Marcelo Tosatti <mtosatti@...hat.com>,
	"kvm@...r.kernel.org" <kvm@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"stable@...nel.org" <stable@...nel.org>
Subject: Re: [PATCH 1/2] KVM: SVM: Fix NMI path when NMI happens in guest
 mode

On Thu, Jan 13, 2011 at 10:48:33AM -0500, Jan Kiszka wrote:
> Am 13.01.2011 16:22, Joerg Roedel wrote:
> >  #ifdef CONFIG_X86_64
> >  	wrmsrl(MSR_GS_BASE, svm->host.gs_base);
> > +	wrmsrl(MSR_KERNEL_GS_BASE, current->thread.gs);
> >  #else
> >  	loadsegment(fs, svm->host.fs);
> >  #endif
> 
> Doesn't this also obsolete the wrmsrl(MSR_KERNEL_GS_BASE) in svm_vcpu_put?

Yes it does. Thanks.

Joerg

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