From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <prvs=56213c2ee=karahmed@amazon.de>
X-Google-Smtp-Source: AH8x2277zFu17uTxUBWytZN9KzsFyLnQ2Ed5lMJR4b0DgZ9Y9EPX89eVYFgmaD98hvcfon0loPsz
ARC-Seal: i=1; a=rsa-sha256; t=1517428914; cv=none;
        d=google.com; s=arc-20160816;
        b=zdlrM0ZOGpdeF/JbTsvIytexNRMmm09DgsfD912Eov7tzztuWzl4EKN1AtRuzmzmLZ
         LmPL2NKMq2gPGIM/B0mu5aaC9vKcyTo8WcB/DJKOwyoJh6KmUyiOPur++0wcagQ2D8MC
         6dgsaVaT/RQSNiit4m7FHo8IbplWGHeCcldd+T+TUrezY0OhdVoy+zwutiWQpA8xYwb7
         i6K66xHW2pnF9EmdD54JorFSRv9nNUCHshoT6cYWj8WB1Gl9onltYfHuyV4uoP2excfI
         iy+khKGBGvJsHZcGzDptL+FYxbHBA8GBFOHU9ws21BssSmR/QjJTVwNSZg20i4ax14PX
         AeIg==
ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816;
        h=content-transfer-encoding:precedence:content-language:in-reply-to
         :mime-version:user-agent:date:message-id:from:references:cc:to
         :subject:dkim-signature:arc-authentication-results;
        bh=fagduaVb307A7ooCXsLRGJxQoQmZj+98NmjcgCtEsyg=;
        b=MuwKunSqilGLmNeDT73qb8EZHu7xXg5hF9DvClX6XiQaWllOKrze3A+ZSljRROV65R
         0TLQZmcGkXHsP43imQDD0Tis+hkZz5Zk8F5cnM6VWMhy9L+X/oikQP3WFKcXCKPsbjjc
         DeaMs4ZBG/wFGaxuXGaSVm8ilVQj3vZlz/m10wfx+f+RroDmr3Kg6d14pD2n16rxDSRg
         uoEEz9wg4cT0mBpvdpzK2NK6rKPgNKeflXapQp+h3XFbYFFlC2UD2twOgdVu4jN22p2S
         34MxqW7iH68VNbG6W/NqWqva4jW6TdTrYl8o7DMi5VxY1RSrTcV1VUX5a7bWFz2cItag
         uE6g==
ARC-Authentication-Results: i=1; mx.google.com;
       dkim=pass header.i=@amazon.com header.s=amazon201209 header.b=Pv7gWqm1;
       spf=pass (google.com: domain of prvs=56213c2ee=karahmed@amazon.de designates 207.171.184.29 as permitted sender) smtp.mailfrom=prvs=56213c2ee=karahmed@amazon.de;
       dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=amazon.com
Authentication-Results: mx.google.com;
       dkim=pass header.i=@amazon.com header.s=amazon201209 header.b=Pv7gWqm1;
       spf=pass (google.com: domain of prvs=56213c2ee=karahmed@amazon.de designates 207.171.184.29 as permitted sender) smtp.mailfrom=prvs=56213c2ee=karahmed@amazon.de;
       dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=amazon.com
X-IronPort-AV: E=Sophos;i="5.46,441,1511827200";
   d="scan'208";a="591814787"
Subject: Re: [PATCH v5 4/5] KVM: VMX: Allow direct access to
 MSR_IA32_SPEC_CTRL
To: Jim Mattson <jmattson@google.com>, KarimAllah Ahmed <karahmed@amazon.de>
CC: kvm list <kvm@vger.kernel.org>, LKML <linux-kernel@vger.kernel.org>,
        "the
 arch/x86 maintainers" <x86@kernel.org>,
        Asit Mallick
	<asit.k.mallick@intel.com>,
        Arjan Van De Ven <arjan.van.de.ven@intel.com>,
        Dave Hansen <dave.hansen@intel.com>, Andi Kleen <ak@linux.intel.com>,
        "Andrea
 Arcangeli" <aarcange@redhat.com>,
        Linus Torvalds
	<torvalds@linux-foundation.org>,
        Tim Chen <tim.c.chen@linux.intel.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        Dan Williams
	<dan.j.williams@intel.com>,
        Jun Nakajima <jun.nakajima@intel.com>,
        "Paolo
 Bonzini" <pbonzini@redhat.com>,
        David Woodhouse <dwmw@amazon.co.uk>,
        Greg KH
	<gregkh@linuxfoundation.org>,
        Andy Lutomirski <luto@kernel.org>, Ashok Raj
	<ashok.raj@intel.com>
References: <1517427467-28567-1-git-send-email-karahmed@amazon.de>
 <1517427467-28567-5-git-send-email-karahmed@amazon.de>
 <CALMp9eRgc-qKS5CDTvqoUDdnAXu8xqy9ZB-rew=P9NgE5AfXWA@mail.gmail.com>
From: KarimAllah Ahmed <karahmed@amazon.com>
Message-ID: <06cb88da-f355-41ed-380f-7daa8ddf6159@amazon.com>
Date: Wed, 31 Jan 2018 21:01:33 +0100
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101
 Thunderbird/52.5.0
MIME-Version: 1.0
In-Reply-To: <CALMp9eRgc-qKS5CDTvqoUDdnAXu8xqy9ZB-rew=P9NgE5AfXWA@mail.gmail.com>
Content-Language: en-US
X-Originating-IP: [10.43.162.124]
X-ClientProxiedBy: EX13D13UWA003.ant.amazon.com (10.43.160.181) To
 EX13D01EUB003.ant.amazon.com (10.43.166.248)
Content-Type: text/plain; charset="utf-8"; format="flowed"
Content-Transfer-Encoding: base64
X-getmail-retrieved-from-mailbox: INBOX
X-GMAIL-THRID: =?utf-8?q?1591113692084885209?=
X-GMAIL-MSGID: =?utf-8?q?1591139541199166056?=
X-Mailing-List: linux-kernel@vger.kernel.org
List-ID: <linux-kernel.vger.kernel.org>
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==