From mboxrd@z Thu Jan  1 00:00:00 1970
From: Eduardo Habkost <ehabkost@redhat.com>
Subject: Re: [PATCH v6 1/2] kvm: support -overcommit
 cpu-pm=on|off
Date: Wed, 27 Jun 2018 10:43:35 -0300
Message-ID: <20180627134335.GC914@localhost.localdomain>
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	<20180622192148.178309-2-mst@redhat.com>
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Cc: Paolo Bonzini <pbonzini@redhat.com>, Marcelo Tosatti <mtosatti@redhat.com>,
	qemu-devel@nongnu.org, kvm@vger.kernel.org,
	Richard Henderson <rth@twiddle.net>
To: "Michael S. Tsirkin" <mst@redhat.com>
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On Fri, Jun 22, 2018 at 10:22:05PM +0300, Michael S. Tsirkin wrote:
> With this flag, kvm allows guest to control host CPU power state.  This
> increases latency for other processes using same host CPU in an
> unpredictable way, but if decreases idle entry/exit times for the
> running VCPU, so to use it QEMU needs a hint about whether host CPU is
> overcommitted, hence the flag name.
> 
> Follow-up patches will expose this capability to guest
> (using mwait leaf).
> 
> Based on a patch by Wanpeng Li <kernellwp@gmail.com> .
> 
> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>

-- 
Eduardo