From mboxrd@z Thu Jan  1 00:00:00 1970
From: Avi Kivity <avi@redhat.com>
Subject: Re: [PATCH 1/2] KVM: SVM: Sync efer back into nested vmcb
Date: Tue, 27 Jul 2010 22:07:32 +0300
Message-ID: <4C4F2E74.3000608@redhat.com>
References: <1280247261-19115-1-git-send-email-joerg.roedel@amd.com> <1280247261-19115-2-git-send-email-joerg.roedel@amd.com>
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Cc: Marcelo Tosatti <mtosatti@redhat.com>, kvm@vger.kernel.org,
	linux-kernel@vger.kernel.org
To: Joerg Roedel <joerg.roedel@amd.com>
Return-path: <linux-kernel-owner@vger.kernel.org>
In-Reply-To: <1280247261-19115-2-git-send-email-joerg.roedel@amd.com>
Sender: linux-kernel-owner@vger.kernel.org
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  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.