linux-kernel - Re: [PATCH 1/2] KVM: SVM: Sync efer back into nested vmcb

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Message-ID: <4C4F2E74.3000608@redhat.com>
Date:	Tue, 27 Jul 2010 22:07:32 +0300
From:	Avi Kivity <avi@...hat.com>
To:	Joerg Roedel <joerg.roedel@....com>
CC:	Marcelo Tosatti <mtosatti@...hat.com>, kvm@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] KVM: SVM: Sync efer back into nested vmcb

  On 07/27/2010 07:14 PM, Joerg Roedel wrote:
> This patch fixes a bug in a nested hypervisor that heavily
> switches between real-mode and long-mode. The problem is
> fixed by syncing back efer into the guest vmcb on emulated
> vmexit.

This is vmware?  IIRC their old kernel was 32-bit, so they need to 
switch all the time.

-- 
I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.

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