linux-kernel - Re: [PATCH RESEND 1/1] X86: Handle Hyper-V vmbus interrupts as special hypervisor interrupts

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Date:	Thu, 24 Jan 2013 13:30:52 -0600
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Olaf Hering <olaf@...fle.de>
CC:	KY Srinivasan <kys@...rosoft.com>, Jan Beulich <JBeulich@...e.com>,
	"bp@...en8.de" <bp@...en8.de>,
	"apw@...onical.com" <apw@...onical.com>,
	"x86@...nel.org" <x86@...nel.org>,
	"tglx@...utronix.de" <tglx@...utronix.de>,
	"devel@...uxdriverproject.org" <devel@...uxdriverproject.org>,
	"gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
	"jasowang@...hat.com" <jasowang@...hat.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH RESEND 1/1] X86: Handle Hyper-V vmbus interrupts as special hypervisor interrupts

And there is no evidence of Xen in CPUID?

Olaf Hering <olaf@...fle.de> wrote:

>On Thu, Jan 24, H. Peter Anvin wrote:
>
>> Can't you discover Xen emulation by looking for Xen first?  Or does
>Xen go "stealth"?
>
>The current code looks at cpuid to decide what the host type is. One
>thing to detect a Xen host is to look for the DIM strings, which still
>have "Xen HVM DomU" or similar.
>
>Olaf

-- 
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