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=-2.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,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 5E4BBC43218 for ; Tue, 11 Jun 2019 07:34:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 26FCA2086D for ; Tue, 11 Jun 2019 07:34:24 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="vRgavvQp" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2404099AbfFKHeW (ORCPT ); Tue, 11 Jun 2019 03:34:22 -0400 Received: from mail-pg1-f196.google.com ([209.85.215.196]:38471 "EHLO mail-pg1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2403920AbfFKHeW (ORCPT ); Tue, 11 Jun 2019 03:34:22 -0400 Received: by mail-pg1-f196.google.com with SMTP id v11so6455268pgl.5; Tue, 11 Jun 2019 00:34:22 -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; bh=8fNYdcY99hechvTD8ARpttj/QvqTzgjVeORsIZWh0xs=; b=vRgavvQpYLzwzD6d+h7wpnmye62IpW4iDT3LEq2Ecqz3KDn2NUpn3Sl6ITX/3j0Qqj URdhE1sxJPBN0TnaNnOInjcu2+8U97kE1BvXWnE0KgGMFYsDeCX8rc8lTLeSXY/Niet2 wf3DqZeY1V25X4S2q0DQSNGSvXM0K+PmhO2HUc40i7owNDyTgqidcXBjTbSrarBku2Am ysMXzcIb2n9dkD7Tq5ppCoUtDdDh5AFeSRrdrmOBMYxWdsby5U7TgmJ0D0IIKZAXvVEo 1YLCt++2fP7xuj+rCT8g8wKe+9l9pXoVhRnjhohsa067ziMP5DQ6pNZxIOCvTlZPOqpP 4uOw== 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; bh=8fNYdcY99hechvTD8ARpttj/QvqTzgjVeORsIZWh0xs=; b=jfZd+PeSnZqk8FgvmJqMIo3y1MUTQA/HETjnrwXdiW5vt0gOFBSuBwliq10nu98Bq1 IV8e/dYtPgEEIZileW943q8MD6ze6pLpDCEC00638M5jPYej5nbDS43neDtallB0pdww SZo71lcIJ4ZzRHRM4KkvRhv2OXJW6kTCv6NxtR699CD+NKbQt0YNPvAZenwht8Sin3tT Qxkjq9cIOipdPyu6QXp4p615VI7k88yNl01qPcoOBeZnGIBuq7dt85EjPe4hoJ6B1g+R 6bgfpLi7cZeT6YzAqJFPJgAOQPfpiYG995/s9hMhn5EtUDJVSe1KymYU7pSgKhypRsFc qYOg== X-Gm-Message-State: APjAAAUUcAmjvJ9i8m9UjkZWkKFZbXMJkytAQKvpPaWeO0ckbpL6Wm0o hSCPc2+/iDR7XlxD3glnraSowdqD X-Google-Smtp-Source: APXvYqyMVooA2mZ+u1WFP1NhPY/ZacqkzaKzAvWBK3iJ5lyO0pdgyP0A/0qpmFjwEfZP1u8pZ3ud1w== X-Received: by 2002:a63:dc56:: with SMTP id f22mr3381114pgj.305.1560238461658; Tue, 11 Jun 2019 00:34:21 -0700 (PDT) Received: from localhost.localdomain ([203.205.141.123]) by smtp.googlemail.com with ESMTPSA id 14sm6860800pfj.36.2019.06.11.00.34.19 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Tue, 11 Jun 2019 00:34:20 -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 0/5] KVM: X86: Add virtual C-states residency msrs support Date: Tue, 11 Jun 2019 15:34:06 +0800 Message-Id: <1560238451-19495-1-git-send-email-wanpengli@tencent.com> X-Mailer: git-send-email 2.7.4 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org After exposing some host CPU power management capabilities to dedicated instances, there is a requirement to consult current idle power-state residency statistics by turbostat. This patchset adds virtual C-states residency msrs emulation. Allowing guest reads CORE cstate when exposing host CPU power management capabilities to the guest. PKG cstate is restricted currently to avoid a guest to get the whole package information in multi-tenant scenario. v1 -> v2: * add residency msrs emulation (base on Paolo's design) Wanpeng Li (5): KVM: X86: Dynamic allocate core residency msr state KVM: X86: Introduce residency msrs read/write operations KVM: X86: setup residency msrs during vCPU creation KVM: VMX: Add get/set residency msrs logic KVM: X86: Save/restore residency values when sched_out/sched_in arch/arm/include/asm/kvm_host.h | 1 + arch/arm64/include/asm/kvm_host.h | 1 + arch/mips/include/asm/kvm_host.h | 1 + arch/powerpc/include/asm/kvm_host.h | 1 + arch/s390/include/asm/kvm_host.h | 1 + arch/x86/include/asm/kvm_host.h | 11 ++++ arch/x86/kvm/vmx/vmx.c | 15 ++++++ arch/x86/kvm/x86.c | 104 ++++++++++++++++++++++++++++++++++++ arch/x86/kvm/x86.h | 5 ++ include/linux/kvm_host.h | 1 + virt/kvm/kvm_main.c | 1 + 11 files changed, 142 insertions(+) -- 2.7.4