From: Bernhard Kauer <kauer@os.inf.tu-dresden.de>
To: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH] allow update of MSR_EFER_SVM
Date: Fri, 29 Feb 2008 16:43:14 +0100 [thread overview]
Message-ID: <20080229154314.GA31173@chrom.inf.tu-dresden.de> (raw)
In-Reply-To: <F91079F9-C033-4112-B905-56FD6CA85882@csgraf.de>
On Fri, Feb 29, 2008 at 11:20:24AM +0100, Alexander Graf wrote:
> Keep in mind that updating the bit should fail within a virtual machine.
I found the following sentence in the manual:
The effect of turning off EFER.SVME while a guest is running is undefined;
therefore, the VMM should always prevent guests from writing EFER.
Therefore i think the wrmsr-code is just fine, as it is in my patch.
Bernhard Kauer
prev parent reply other threads:[~2008-02-29 15:43 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-02-27 16:07 [Qemu-devel] [PATCH] allow update of MSR_EFER_SVM Bernhard Kauer
2008-02-27 17:03 ` Alexander Graf
2008-02-29 9:41 ` Bernhard Kauer
2008-02-29 10:20 ` Alexander Graf
2008-02-29 15:43 ` Bernhard Kauer [this message]
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