linux-kernel - Re: Xenner design and kvm msr handling

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Message-ID: <49EEEB4B.80306@redhat.com>
Date:	Wed, 22 Apr 2009 12:02:51 +0200
From:	Gerd Hoffmann <kraxel@...hat.com>
To:	Avi Kivity <avi@...hat.com>
CC:	Anthony Liguori <anthony@...emonkey.ws>,
	Huang Ying <ying.huang@...el.com>,
	"kvm@...r.kernel.org" <kvm@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Andi Kleen <andi@...stfloor.org>
Subject: Re: Xenner design and kvm msr handling

On 04/21/09 18:15, Avi Kivity wrote:

> Maybe migration is cooperative,

It is.  It has to be, for the xen pv frontend drivers migration isn't 
transparent.

> that is the host tells the guest it is
> migrated, so it can re-register the hypercall area?

Yes, the guest re-does the wrmsr after migration.

cheers,
   Gerd
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