From: Avi Kivity <avi-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
To: Markus Rechberger <markus.rechberger-5C7GfCeVMHo@public.gmane.org>
Cc: kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org,
Joerg.Roedel-5C7GfCeVMHo@public.gmane.org
Subject: Re: [PATCH] discard MSR writes
Date: Tue, 20 Nov 2007 14:34:12 +0200 [thread overview]
Message-ID: <4742D444.3090405@qumranet.com> (raw)
In-Reply-To: <4742D3AC.2030108-5C7GfCeVMHo@public.gmane.org>
Markus Rechberger wrote:
> I also discussed this with Joerg, since Qemu doesn't handle those MSR
> writes at the moment we think it's ok temporary. Lateron it should be
> emulated (but we're hunting a different issue at the moment). Our
> perfmon guys would also prefer a proper emulation.
>
There's no need to copy mistakes from qemu. I too would prefer proper
emulation, but meanwhile, if Vista disables performance monitoring when
writing to these msrs, we can allow it, and error out if some other
guest attempts to enable performance monitoring (which will fail silently).
--
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next prev parent reply other threads:[~2007-11-20 12:34 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-19 19:08 [PATCH] discard MSR writes Markus Rechberger
[not found] ` <4741DF15.20708-5C7GfCeVMHo@public.gmane.org>
2007-11-20 7:45 ` Amit Shah
[not found] ` <200711201315.15337.amit.shah-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-11-20 9:47 ` Avi Kivity
[not found] ` <4742AD4A.2080406-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-11-20 10:09 ` Amit Shah
[not found] ` <200711201539.31712.amit.shah-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-11-20 10:12 ` Avi Kivity
[not found] ` <4742B313.4080704-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-11-20 10:32 ` Amit Shah
[not found] ` <200711201602.43331.amit.shah-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-11-20 10:35 ` Avi Kivity
[not found] ` <4742B88F.8000404-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-11-20 12:31 ` Markus Rechberger
[not found] ` <4742D3AC.2030108-5C7GfCeVMHo@public.gmane.org>
2007-11-20 12:34 ` Avi Kivity [this message]
2007-11-20 9:24 ` Avi Kivity
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