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Re: [Xen-devel] INVVPID question.

To: Gianluca Guida <gianluca.guida@xxxxxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: Re: [Xen-devel] INVVPID question.
From: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
Date: Tue, 28 Apr 2009 13:52:43 +0100
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The instruction reference manual explicitly states that it is not guaranteed
to flush VPID 0 (but also says that it 'might'). Can't be relied on.

 -- Keir

On 28/04/2009 13:18, "Gianluca Guida" <gianluca.guida@xxxxxxxxxxxxx> wrote:

> Hello,
> I have a simple question for the Intel EPT/VPID experts: do current
> implementation of invvpid flushes also VPID 0 when 2 is the first
> argument (as in vpid_sync_all() in Xen)?
> Thanks in advance,
> Gianluca
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