From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9FFADC43218 for ; Tue, 11 Jun 2019 07:34:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 73EAE2145D for ; Tue, 11 Jun 2019 07:34:38 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="i7YtPvpK" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2404447AbfFKHed (ORCPT ); Tue, 11 Jun 2019 03:34:33 -0400 Received: from mail-pf1-f196.google.com ([209.85.210.196]:36470 "EHLO mail-pf1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2404374AbfFKHea (ORCPT ); Tue, 11 Jun 2019 03:34:30 -0400 Received: by mail-pf1-f196.google.com with SMTP id r7so982226pfl.3; Tue, 11 Jun 2019 00:34:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=KiK1sq6GLpZIcwmBcLvrW6rSd5iYr3Yl60n90C4FhKI=; b=i7YtPvpKHxs3dfZ9dPikQImsgqFjtNJxtRVnhxwS8AhWrPhho9oasi+27l5ZuAuO90 2RItdIDnMgxqfPbwqYueISYC9Vc8TwUfu+No+i8Y8NZFPWQY4D1ZSUy8jjFOiOuoSJXT vtcNPobFq/eK8FrSx082AhcmFO/gO2OYITSMseG6HJJcU89+1EOGYR16yzErvHZ8Nrr2 qJqRHBMdJhfKv3SFcyof9ScjKmLO3SPuELdwynPVj7hSsNJ6WKV2/3/7Lf8LyMLOaCtZ NNDquiicw8cqWOJW9K1wvP7HJD9gVNUa8UCYEDLIKGuonnNy+G2rUgo1BmVH3QiDUCX/ enLQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=KiK1sq6GLpZIcwmBcLvrW6rSd5iYr3Yl60n90C4FhKI=; b=iudrz5gfOTPnulZkjlNN/UrIzFIG0WiqI6ESO/ijnz+xWWykAaVW0z5eUkTVw3XNKD TCpgR6z/EHZSFrgZtsG0rAIpzPzEcBwtv0g8c8UW34KoMBdrol/NcivnVaKbPIcN72eP Sef5o/DeOiODzYdEGfWY14uDy5Wwt8B9P8zyLvGGEoe5FNdjesB3Kzo2bx5k51STrzn+ CtDF2FwQ3HqvaGwevcUtWIjU3PfpXAcRFveEOKV1l7wfVIBjyA7aDBQIvM2WcUeps1fT u/9ylbJ9IW4HWGj5fqWx7AmUFXcJwaJnxPXUIKQstE4CQZ9OvEhxP/YIolDsmoyVlHbG 0Lkg== X-Gm-Message-State: APjAAAXnUQRBMTmQ5y0PaX2VPIJyyE+bQQJSYvxVMh3zv5iRN0y+kLz0 XfSKahRqK/G2TbJU97a6cD9kd/KO X-Google-Smtp-Source: APXvYqwCId+VuuH2ogy+M94QbDVmB7z5myYykQrvTUHZC+jPGp/cb+wR7jbHzZpQwVK6n0vrF2nMRQ== X-Received: by 2002:aa7:9256:: with SMTP id 22mr66307954pfp.69.1560238469395; Tue, 11 Jun 2019 00:34:29 -0700 (PDT) Received: from localhost.localdomain ([203.205.141.123]) by smtp.googlemail.com with ESMTPSA id 14sm6860800pfj.36.2019.06.11.00.34.27 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Tue, 11 Jun 2019 00:34:28 -0700 (PDT) From: Wanpeng Li X-Google-Original-From: Wanpeng Li To: linux-kernel@vger.kernel.org, kvm@vger.kernel.org Cc: Paolo Bonzini , =?UTF-8?q?Radim=20Kr=C4=8Dm=C3=A1=C5=99?= Subject: [PATCH v2 4/5] KVM: VMX: Add get/set residency msrs logic Date: Tue, 11 Jun 2019 15:34:10 +0800 Message-Id: <1560238451-19495-5-git-send-email-wanpengli@tencent.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1560238451-19495-1-git-send-email-wanpengli@tencent.com> References: <1560238451-19495-1-git-send-email-wanpengli@tencent.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Wanpeng Li Add logic to get/set the residency msrs. Then current idle power-state residency statistics can be consult by guest, and be save/restore during live migration. Cc: Paolo Bonzini Cc: Radim Krčmář Signed-off-by: Wanpeng Li --- arch/x86/kvm/vmx/vmx.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c index 2ebaa90..852f51e 100644 --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -1715,6 +1715,9 @@ static int vmx_get_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info) case MSR_IA32_FEATURE_CONTROL: msr_info->data = vmx->msr_ia32_feature_control; break; + case MSR_CORE_C3_RESIDENCY ... MSR_CORE_C7_RESIDENCY: + msr_info->data = kvm_residency_read(vcpu, msr_info->index); + break; case MSR_IA32_VMX_BASIC ... MSR_IA32_VMX_VMFUNC: if (!nested_vmx_allowed(vcpu)) return 1; @@ -1928,6 +1931,11 @@ static int vmx_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info) if (msr_info->host_initiated && data == 0) vmx_leave_nested(vcpu); break; + case MSR_CORE_C3_RESIDENCY ... MSR_CORE_C7_RESIDENCY: + if (!msr_info->host_initiated) + return 1; + kvm_residency_write(vcpu, msr_info->index, data); + break; case MSR_IA32_VMX_BASIC ... MSR_IA32_VMX_VMFUNC: if (!msr_info->host_initiated) return 1; /* they are read-only */ -- 2.7.4