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RE: [Xen-devel] Avoiding VmEntry/VmExit.

To: "Devdutt Patnaik" <xendevid@xxxxxxxxx>, "Mark Williamson" <mark.williamson@xxxxxxxxxxxx>
Subject: RE: [Xen-devel] Avoiding VmEntry/VmExit.
From: "Cui, Dexuan" <dexuan.cui@xxxxxxxxx>
Date: Tue, 30 Oct 2007 09:40:44 +0800
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Thread-topic: [Xen-devel] Avoiding VmEntry/VmExit.
There is no such a bit in VMCS that indicates HVM guest's IRET should
incur VMexit, though the "External-interrupt exiting" and "NMI exiting"
may cause VMexit on HVM guest's IRET under certain conditions.

-- Dexuan

Devdutt Patnaik wrote:
> Yes, this is for HVM. On a related note, is there any bit in the VMCS
> region that will cause an IRET in the guest VM to trap into Xen so
> that I can then service another VM ?
> 

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