From: Gerd Hoffmann <kraxel@redhat.com>
To: Glauber Costa <gcosta@redhat.com>
Cc: kvm-devel@lists.sourceforge.net,
Marcelo Tosatti <mtosatti@redhat.com>,
andi-suse@firstfloor.org
Subject: Re: [PATCH 0/4] paravirt clock patches
Date: Tue, 13 May 2008 08:53:43 +0200 [thread overview]
Message-ID: <48293AF7.5010304@redhat.com> (raw)
In-Reply-To: <482450BB.3050409@redhat.com>
Glauber Costa wrote:
> So maybe declare the per-cpu areas in a special section, then in
> setup_per_cpu_areas, copy them into the definitive per-cpu section and
> update the callers?
The special section and the copy is implemented already.
That doesn't cut it for the kvmclock case though. We registered the
physical address via msr write in the host, and *that* needs an update
too. Otherwise the host continues to update the pre-setup location, and
the guest sees the (stale) values the kvm clock had at
per-cpu-area-setup time (when the copy took place).
cheers,
Gerd
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prev parent reply other threads:[~2008-05-13 6:53 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-24 8:37 [PATCH 0/4] paravirt clock patches Gerd Hoffmann
2008-04-24 8:37 ` [PATCH 1/4] Add helper functions for paravirtual clocksources Gerd Hoffmann
2008-04-24 8:37 ` [PATCH 2/4] Make xen use the generic paravirt clocksource code Gerd Hoffmann
2008-04-24 8:37 ` [PATCH 3/4] kvm/host: fix paravirt clocksource to be compatible with xen Gerd Hoffmann
2008-04-24 8:37 ` [PATCH 4/4] kvm/guest: fix paravirt clocksource to be compartible " Gerd Hoffmann
2008-04-24 13:16 ` Glauber Costa
2008-04-24 13:11 ` [PATCH 1/4] Add helper functions for paravirtual clocksources Glauber Costa
2008-04-28 8:54 ` Gerd Hoffmann
2008-04-27 12:58 ` [PATCH 0/4] paravirt clock patches Avi Kivity
2008-04-28 12:09 ` Gerd Hoffmann
2008-04-28 19:28 ` Marcelo Tosatti
2008-05-05 7:47 ` Gerd Hoffmann
2008-05-05 15:32 ` Marcelo Tosatti
2008-05-06 15:59 ` Gerd Hoffmann
2008-05-06 16:44 ` Gerd Hoffmann
2008-05-07 18:45 ` Gerd Hoffmann
2008-05-08 23:10 ` Marcelo Tosatti
2008-05-09 13:25 ` Glauber Costa
2008-05-13 6:53 ` Gerd Hoffmann [this message]
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