From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Jan Beulich" <JBeulich@suse.com>
Subject: Re: [PATCH] x86: Convert shadow-paging to Kconfig
Date: Tue, 19 Jan 2016 06:38:38 -0700
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To: Andrew Cooper <andrew.cooper3@citrix.com>
Cc: George Dunlap <george.dunlap@eu.citrix.com>, TimDeegan <tim@xen.org>, Doug Goldstein <cardoe@cardoe.com>, Ian Campbell <ian.campbell@citrix.com>, Xen-devel <xen-devel@lists.xen.org>
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>>> On 19.01.16 at 14:30, <andrew.cooper3@citrix.com> wrote:
> On 19/01/16 13:23, Jan Beulich wrote:
>>>>> On 19.01.16 at 10:46, <ian.campbell@citrix.com> wrote:
>>> On Mon, 2016-01-18 at 18:40 +0000, Andrew Cooper wrote:
>>>> Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
>>> Does this have any impact on migration of either PV or HVM guests? What
>>> about nested virt?
>> At least PV guests won't be migratable anymore when there's no
>> shadow mode.
> 
> What?  Shadow mode (or lack thereof) has no impact whatsoever on migration.

So how would log-dirty mode work for a PV guest without shadow
code?

Jan