From: Avi Kivity <avi@redhat.com>
To: Gerd Hoffmann <kraxel@redhat.com>
Cc: Anthony Liguori <anthony@codemonkey.ws>,
Huang Ying <ying.huang@intel.com>,
"kvm@vger.kernel.org" <kvm@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Andi Kleen <andi@firstfloor.org>
Subject: Re: [PATCH] Add MCE support to KVM
Date: Mon, 20 Apr 2009 14:27:54 +0300 [thread overview]
Message-ID: <49EC5C3A.6020108@redhat.com> (raw)
In-Reply-To: <49EC5B2A.9080403@redhat.com>
Gerd Hoffmann wrote:
>>> Well, xenner doesn't do vmcalls, so the page isn't vendor specific.
>>
>> Well, for true pv (not pv-on-hvm) it wouldn't use the MSR, would it?
>
> Yes, the MSR is used for pv-on-hvm only.
So it isn't relevant for Xenner?
That said, I'd like to be able to emulate the Xen HVM hypercalls. But
in any case, they hypercall implementation has to be in the kernel, so I
don't see why the MSR shouldn't be. Especially if we need to support
tricky bits like continuations.
> Same MSR, multiple writes (page number in the low bits).
Nasty. The hypervisor has to remember all of the pages, so it can
update them for live migration. And it has to forget about them on
reset. And something needs to be done for kexec...
--
error compiling committee.c: too many arguments to function
next prev parent reply other threads:[~2009-04-20 11:28 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-08 1:53 [PATCH] Add MCE support to KVM Huang Ying
2009-04-09 15:50 ` Avi Kivity
2009-04-10 3:00 ` Huang Ying
2009-04-11 12:04 ` Avi Kivity
2009-04-11 12:19 ` Andi Kleen
2009-04-11 12:25 ` Avi Kivity
2009-04-13 8:26 ` Andi Kleen
2009-04-13 2:41 ` Huang Ying
2009-04-13 13:02 ` Avi Kivity
2009-04-14 2:04 ` Huang Ying
2009-04-14 10:45 ` Avi Kivity
2009-04-15 7:24 ` Huang Ying
2009-04-18 22:17 ` Anthony Liguori
2009-04-19 8:33 ` Avi Kivity
2009-04-20 7:52 ` Gerd Hoffmann
2009-04-20 8:26 ` Avi Kivity
2009-04-20 8:59 ` Gerd Hoffmann
2009-04-20 9:05 ` Avi Kivity
2009-04-20 10:04 ` Andi Kleen
2009-04-20 11:02 ` Avi Kivity
2009-04-20 11:23 ` Gerd Hoffmann
2009-04-20 11:27 ` Avi Kivity [this message]
2009-04-20 12:20 ` Gerd Hoffmann
2009-04-20 12:43 ` Avi Kivity
2009-04-20 13:24 ` Gerd Hoffmann
2009-04-20 13:45 ` Avi Kivity
2009-04-21 9:14 ` Xenner design and kvm msr handling Gerd Hoffmann
2009-04-21 10:14 ` Avi Kivity
2009-04-21 11:41 ` Gerd Hoffmann
2009-04-21 12:27 ` Avi Kivity
2009-04-21 12:47 ` Gerd Hoffmann
2009-04-21 13:33 ` Avi Kivity
2009-04-21 16:00 ` Gerd Hoffmann
2009-04-21 16:15 ` Avi Kivity
2009-04-22 10:02 ` Gerd Hoffmann
2009-04-21 16:04 ` [PATCH] Add MCE support to KVM Anthony Liguori
2009-04-21 16:17 ` Avi Kivity
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