From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <prvs=5611dd0bd=karahmed@amazon.de>
X-Google-Smtp-Source: AH8x225S4LETyKgPUrW2gQ1zscXnVlofTePrBDnHwZrNQCAjn/gVR7LdNhCBLsNeF13wca7qP0v7
ARC-Seal: i=1; a=rsa-sha256; t=1517304785; cv=none;
        d=google.com; s=arc-20160816;
        b=tvizXmnQ0Pnw0I7q5wBYDsV8YOHP4hMECXCYIUF8FBUfNJX5hJOa9mpL4097661lOU
         XiI/XcWDjO4EkVNlnSLb0e1oFjQOighQ+ReEXpXzNMSWwhIwXyZMMLZ08EtPscF7pDAA
         vqNA3MfHbrASmD2pknIN1abrMzbUYH725tZPpjWIlZcS6QnEcSrRaCodjRk41DwdpAWZ
         xRCPUlgyUCJ7nQ405AF2sCQ5FCT4lztpEk+m0PonfhznnALYQCpjwEQMbXnKy7GkHwF1
         QXlrfWWHjghOccX3ayy7uAqTWkcT5u5f3jaWUMGog6b4B9oWOZ9yTjIXJDhp5jDWuSNP
         v4wA==
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=ijSPhW0sszW3+0WaWeCy9fW/6wDIpdfCstbwYlW8EbM=;
        b=PNtI9ey2fglPL5A4ETCD/kaJ+w0C2PVfl7DPNWbqxOcxL85gTtSi9/6LXnKcUoLvUK
         rcHVryZ5FPY/yOhHbRPGb9BxaXKO2wEQoM/BN9CT6Dhyxes17cib7bQoBs6pxavxjmPh
         z8XEwDasuf4gZpWePstST020xjorGtokWpEGo2alXObJHVwM+ZOc9T8xTvDucca3D+HN
         I0hZGqfpSgHOl3M4HOFWbEkoS0e/RsUA4vLJ7xvwfDxgaOVcXCd0RIp2aLcM69WDsq3Q
         m9vRFR7RyRUT9u6T96qkmYN+Y7iskTGKm0xTdB0v+6gN6oeDuWD3uTYcM1wCgggVf1Vk
         ytxw==
ARC-Authentication-Results: i=1; mx.google.com;
       dkim=pass header.i=@amazon.com header.s=amazon201209 header.b=Q5yF4Wt0;
       spf=pass (google.com: domain of prvs=5611dd0bd=karahmed@amazon.de designates 207.171.184.29 as permitted sender) smtp.mailfrom=prvs=5611dd0bd=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=Q5yF4Wt0;
       spf=pass (google.com: domain of prvs=5611dd0bd=karahmed@amazon.de designates 207.171.184.29 as permitted sender) smtp.mailfrom=prvs=5611dd0bd=karahmed@amazon.de;
       dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=amazon.com
X-IronPort-AV: E=Sophos;i="5.46,433,1511827200";
   d="scan'208";a="591215045"
Subject: Re: [PATCH v3 0/4] KVM: Expose speculation control feature to guests
To: David Woodhouse <dwmw2@infradead.org>,
        KarimAllah Ahmed
	<karahmed@amazon.de>, <kvm@vger.kernel.org>,
        <linux-kernel@vger.kernel.org>, <x86@kernel.org>
CC: Andi Kleen <ak@linux.intel.com>, Andrea Arcangeli <aarcange@redhat.com>,
        Andy Lutomirski <luto@kernel.org>,
        Arjan van de Ven <arjan@linux.intel.com>,
        Ashok Raj <ashok.raj@intel.com>,
        Asit Mallick <asit.k.mallick@intel.com>, Borislav Petkov <bp@suse.de>,
        Dan Williams <dan.j.williams@intel.com>,
        "Dave
 Hansen" <dave.hansen@intel.com>,
        Greg Kroah-Hartman
	<gregkh@linuxfoundation.org>,
        "H . Peter Anvin" <hpa@zytor.com>, Ingo Molnar
	<mingo@redhat.com>,
        Janakarajan Natarajan <Janakarajan.Natarajan@amd.com>,
        Joerg Roedel <joro@8bytes.org>, Jun Nakajima <jun.nakajima@intel.com>,
        "Laura
 Abbott" <labbott@redhat.com>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Masami Hiramatsu <mhiramat@kernel.org>,
        Paolo Bonzini <pbonzini@redhat.com>,
        Peter Zijlstra <peterz@infradead.org>,
        =?UTF-8?B?UmFkaW0gS3LEjW3DocWZ?=
	<rkrcmar@redhat.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        Tim Chen
	<tim.c.chen@linux.intel.com>,
        Tom Lendacky <thomas.lendacky@amd.com>
References: <1517271028-15916-1-git-send-email-karahmed@amazon.de>
 <1517302830.18619.78.camel@infradead.org>
From: KarimAllah Ahmed <karahmed@amazon.com>
Message-ID: <ff1756fd-a705-80f6-8c14-98cd0d0d6fad@amazon.com>
Date: Tue, 30 Jan 2018 10:32:31 +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: <1517302830.18619.78.camel@infradead.org>
Content-Language: en-US
X-Originating-IP: [10.43.162.124]
X-ClientProxiedBy: EX13D08UWB003.ant.amazon.com (10.43.161.186) 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?1590974343910960333?=
X-GMAIL-MSGID: =?utf-8?q?1591009383087175504?=
X-Mailing-List: linux-kernel@vger.kernel.org
List-ID: <linux-kernel.vger.kernel.org>
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