Re: [Xen-devel] xen-detect.c question.

To:	정희동 <heedongj@xxxxxxxxx>
Subject:	Re: [Xen-devel] xen-detect.c question.
From:	Dulloor <dulloor@xxxxxxxxx>
Date:	Tue, 26 May 2009 18:45:00 -0400
Cc:	xen-devel@xxxxxxxxxxxxxxxxxxx, Akio Takebe <takebe_akio@xxxxxxxxxxxxxx>
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Wrt xen implementation, you can take a look at the function cpuid_hypervisor_leaves.
The min leaf for xen (MSR base address) is 0x40000000.

Btw, I don't follow the special handling of viridian domains in cpuid_hypervisor_leaves, when its taken care of in cpuid_viridian_leaves (both called from hvm_cpuid). Is it dead code ?

-dulloor

***CL final (Barca vs Man-U) - 2:30 PM (EST)***

2009/5/26 정희동 <heedongj@xxxxxxxxx>

Hello,

Thank you so much for the reply =)

I will confirm it myself soon.

2009/5/26 Akio Takebe <takebe_akio@xxxxxxxxxxxxxx>

Hi,

정희동 wrote:

Hello, I have a question about xen-detect.c (which is posted
http://lists.xensource.com/archives/html/xen-changelog/2007-02/msg00075.html
here)

It says that by running this program xen PV and HVM can be detected.

First of all, is it true that it can detect HVM (hardware support Xen)?
Can anyone confirm this?

Yes, you should also confirm it.

If it is true then can anyone explain me how this can detect xen?

See the following thread.
http://thread.gmane.org/gmane.comp.emulators.kvm.devel/22643

Best Regards,

Akio Takebe

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Re: [Xen-devel] xen-detect.c question.