From: Eduardo Habkost <ehabkost@redhat.com>
To: "Michael S. Tsirkin" <mst@redhat.com>
Cc: qemu-devel@nongnu.org, Paolo Bonzini <pbonzini@redhat.com>,
Marcelo Tosatti <mtosatti@redhat.com>,
kvm@vger.kernel.org, Richard Henderson <rth@twiddle.net>
Subject: Re: [Qemu-devel] [PATCH v2 2/2] i386/cpu: make -cpu host support monitor/mwait
Date: Wed, 13 Jun 2018 18:24:47 -0300 [thread overview]
Message-ID: <20180613212447.GH24764@localhost.localdomain> (raw)
In-Reply-To: <20180612184616.90838-3-mst@redhat.com>
On Tue, Jun 12, 2018 at 09:47:13PM +0300, Michael S. Tsirkin wrote:
> When guest CPU PM is enabled, and with -cpu host, expose the host CPU
> MWAIT leaf in the CPUID so guest can make good PM decisions.
>
> Note: the result is 100% CPU utilization reported by host as host
> no longer knows that the CPU is halted.
>
> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
--
Eduardo
next prev parent reply other threads:[~2018-06-13 21:24 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-12 18:47 [Qemu-devel] [PATCH v2 0/2] kvm: x86 CPU power management Michael S. Tsirkin
2018-06-12 18:47 ` [Qemu-devel] [PATCH v2 1/2] kvm: support -realtime cpu-pm=on|off Michael S. Tsirkin
2018-06-13 20:35 ` Eduardo Habkost
2018-06-13 21:00 ` Eduardo Habkost
2018-06-13 21:53 ` Michael S. Tsirkin
2018-06-12 18:47 ` [Qemu-devel] [PATCH v2 2/2] i386/cpu: make -cpu host support monitor/mwait Michael S. Tsirkin
2018-06-13 21:24 ` Eduardo Habkost [this message]
2018-06-12 19:18 ` [Qemu-devel] [PATCH v2 0/2] kvm: x86 CPU power management no-reply
2018-06-12 20:29 ` Michael S. Tsirkin
2018-06-13 22:34 ` Marcelo Tosatti
2018-06-13 23:37 ` Michael S. Tsirkin
2018-06-15 18:32 ` Marcelo Tosatti
2018-06-15 21:53 ` Michael S. Tsirkin
2018-06-14 8:18 ` Daniel P. Berrangé
2018-06-14 15:40 ` Paolo Bonzini
2018-06-14 15:44 ` Daniel P. Berrangé
2018-06-14 20:32 ` Paolo Bonzini
2018-06-15 14:15 ` Michael S. Tsirkin
2018-06-14 16:53 ` Eduardo Habkost
2018-06-14 21:21 ` Paolo Bonzini
2018-06-15 13:52 ` Michael S. Tsirkin
2018-06-22 13:06 ` Kashyap Chamarthy
2018-06-22 19:18 ` Michael S. Tsirkin
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