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=-11.4 required=3.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_IN_DEF_DKIM_WL autolearn=no 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 546D4C432C0 for ; Tue, 19 Nov 2019 20:02:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2881222448 for ; Tue, 19 Nov 2019 20:02:58 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="JYv+QpU9" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727104AbfKSUC5 (ORCPT ); Tue, 19 Nov 2019 15:02:57 -0500 Received: from mail-io1-f66.google.com ([209.85.166.66]:35927 "EHLO mail-io1-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726892AbfKSUC5 (ORCPT ); Tue, 19 Nov 2019 15:02:57 -0500 Received: by mail-io1-f66.google.com with SMTP id s3so24729244ioe.3 for ; Tue, 19 Nov 2019 12:02:56 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=2MFMy3LYEEEj2WKJnpUWE+LjcS6ExOPNWRw+rJNdpsw=; b=JYv+QpU9RCzMu4YGwNE4IB0XYB/RP0EfJKAEMlntSqLQq0E82KlEQZrkDlKAwaPWxO Mz3OAm3f9ta1eO7exD485mQX3lGz5rHLeAT8cN+BTsjYU5wya780Zo7pqtfw57oRCcHl F0LaIouXgLin+x60Mlr22jmfr/arSOJQTkH3ou2RSqPdu3pI8ahGiJol1Kwxy2n4Q8TJ 2bhyhfsxi/F1u/6O08noh3aY8u4m0tUMe6LZEv39C/0DZjrp7xCtZjN45LzNozF2Wk57 yT2Xx5pIwyoPvTSjNHHHnZEdoelW4/R3Amc1OH6u38evpSpQg7JiLNwbr2HLckMYr1YE +4pQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=2MFMy3LYEEEj2WKJnpUWE+LjcS6ExOPNWRw+rJNdpsw=; b=izg2ULAYLEGx3lkPuPXsac6AGhqXAUPRlgqTE1PPxATKFy19ms/VM06v7MrScqxGMb 6IBF06vxkNB3uSnxpT4eKYFxNGIRk+/7Q2KSG6ZL2UCrZ6OzlWsJVzDagXUf8aGjo2be h+t449FpQsTEizdvoTUjIXmSJWjbPPfNP4JQpI6jnhYLU6s8vQlcN1THS+qkG1WlYryl 0hghYOpBrpOdbCevI3jBFHWAlUO90zjK2cQ4eACof7Hmsx97lscz8ieoYOcXDxqpSh9y 0SZIXpQBUUhhbAPWLGvfF1StYo2H45F36Ko69oMgXkTrjLCbrausBdjGnHQ6vXkSH1VJ ECBg== X-Gm-Message-State: APjAAAWfv0MNHJSmBSQ9r3wRslSDOVNbwabkGSgMrggODJ/r76myPixb H+m1BJIxez1arX3PLw+2C80sSm+3DfqYz/CygfCE6Q== X-Google-Smtp-Source: APXvYqxyqKJGCaiQS2Qc1Xu3XQTsFmFp5Qs3VRSx5jry5cnEcT5RLvshAfvWelgmhFGgWO/EUGEbOJzXdX0WJfIkJbA= X-Received: by 2002:a6b:e016:: with SMTP id z22mr12580177iog.296.1574193776044; Tue, 19 Nov 2019 12:02:56 -0800 (PST) MIME-Version: 1.0 References: <1574101067-5638-1-git-send-email-pbonzini@redhat.com> <1574101067-5638-4-git-send-email-pbonzini@redhat.com> In-Reply-To: <1574101067-5638-4-git-send-email-pbonzini@redhat.com> From: Jim Mattson Date: Tue, 19 Nov 2019 12:02:44 -0800 Message-ID: Subject: Re: [PATCH 3/5] KVM: x86: implement MSR_IA32_TSX_CTRL effect on CPUID To: Paolo Bonzini Cc: LKML , kvm list , Sean Christopherson Content-Type: text/plain; charset="UTF-8" Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org On Mon, Nov 18, 2019 at 10:17 AM Paolo Bonzini wrote: > > Because KVM always emulates CPUID, the CPUID clear bit > (bit 1) of MSR_IA32_TSX_CTRL must be emulated "manually" > by the hypervisor when performing said emulation. > > Right now neither kvm-intel.ko nor kvm-amd.ko implement > MSR_IA32_TSX_CTRL but this will change in the next patch. > > Signed-off-by: Paolo Bonzini Reviewed-by: Jim Mattson