From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rik van Riel Subject: Re: [PATCH 2/7] KVM-HDR: KVM Steal time implementation Date: Mon, 13 Jun 2011 21:33:26 -0400 Message-ID: <4DF6BA66.1030009@redhat.com> References: <1308007897-17013-1-git-send-email-glommer@redhat.com> <1308007897-17013-3-git-send-email-glommer@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org, Jeremy Fitzhardinge , Peter Zijlstra , Avi Kivity , Anthony Liguori , Eric B Munson To: Glauber Costa Return-path: Received: from mx1.redhat.com ([209.132.183.28]:37352 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754154Ab1FNBdi (ORCPT ); Mon, 13 Jun 2011 21:33:38 -0400 In-Reply-To: <1308007897-17013-3-git-send-email-glommer@redhat.com> Sender: kvm-owner@vger.kernel.org List-ID: On 06/13/2011 07:31 PM, Glauber Costa wrote: > To implement steal time, we need the hypervisor to pass the guest information > about how much time was spent running other processes outside the VM. > This is per-vcpu, and using the kvmclock structure for that is an abuse > we decided not to make. > > In this patchset, I am introducing a new msr, KVM_MSR_STEAL_TIME, that > holds the memory area address containing information about steal time > > This patch contains the headers for it. I am keeping it separate to facilitate > backports to people who wants to backport the kernel part but not the > hypervisor, or the other way around. > > Signed-off-by: Glauber Costa > CC: Rik van Riel > CC: Jeremy Fitzhardinge > CC: Peter Zijlstra > CC: Avi Kivity > CC: Anthony Liguori > CC: Eric B Munson Acked-by: Rik van Riel -- All rights reversed