Received: by 10.213.65.68 with SMTP id h4csp1589816imn; Mon, 19 Mar 2018 08:11:08 -0700 (PDT) X-Google-Smtp-Source: AG47ELt4CjfRvqcQNKXkHY7M7+1lzGIqcRCpx2bX5LhAJeWCD4QyEJpsEMNHjRWD+ctfX1syyaUJ X-Received: by 10.98.75.129 with SMTP id d1mr10580606pfj.19.1521472268453; Mon, 19 Mar 2018 08:11:08 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1521472268; cv=none; d=google.com; s=arc-20160816; b=kJaLpUM8atMTn6bawqUbl9DvKnRGCgGFiK+Qo4cTVHoCD0+L4djOKyIbY2QinzsTff iR58U3+HKvmQaVeLlWOeh7xe1f3Z+SNGESsOnvXyA2pPRAIKpVUWcuNwjQ4ZsYXrg/BF 4DvYhPV0cH4PPIHY1VR1h3ZOdsQjAGUHJyVmt1Jba4Qe4NJl+HlJW1NIbkWD+zF0SAQ+ AQ9B1jcIgl+7mfwV7fZWaRZIOAWdFgt9RWuxP4KRzka5IaIKqC8Yg/O5488zmWupmaff HK+yCMLRqrWQnPdcpxzjw1q/IT6+/E3aLp0slBP04k199PjOfMZ7yqXqyhQaLJ1VlSIV 5imw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding :content-language:in-reply-to:mime-version:user-agent:date :message-id:from:references:cc:to:subject:arc-authentication-results; bh=WUolrI7QE1mdVUQ0Sk1EP10qmwvrjKI1gS4TDsWoKCo=; b=v5jtqHDWiXZXIBhLP1ahKU7yQvB2FrcPKQuQCPyFUaiUcAxz3M5iY9dGMsjGtD/Ue5 BRLDAFwCBxaatvGw34IktCXcsTq0lNbH1Y1A6vCbE03fvtqF6axlwMsDWCDOgjdpjcsU bhPndXKiYamQLZ05JFPPafUW3+RzCgjDKkTqdYcOT0gJHA2ZU0HX+n1uHPQIjr6cM680 7ep0Xp+k72ilUqXbaTmnV5N8vbpWJiMxjImVZ9zYHUHxBnmf4ACmlrNSEKICDeDJN98h X0X5Q/8LaE4DAiuReWoxt0s3ruPclr7zXD1E1RkgCNwWM4kQdVXs5mmjBj9LWUvzNxET m3Vg== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id t4si97058pgv.512.2018.03.19.08.10.53; Mon, 19 Mar 2018 08:11:08 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755612AbeCSPJv (ORCPT + 99 others); Mon, 19 Mar 2018 11:09:51 -0400 Received: from mx2.suse.de ([195.135.220.15]:39788 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755226AbeCSPJs (ORCPT ); Mon, 19 Mar 2018 11:09:48 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay1.suse.de (charybdis-ext.suse.de [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 8FD59ADC1; Mon, 19 Mar 2018 15:09:46 +0000 (UTC) Subject: Re: [PATCH] x86/vsyscall/64: Use proper accessor to update p4d entry To: Boris Ostrovsky , linux-kernel@vger.kernel.org Cc: tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com, luto@kernel.org, x86@kernel.org References: <20180319143154.3742-1-boris.ostrovsky@oracle.com> From: Juergen Gross Message-ID: <9203a154-3b96-7c57-7be5-2ddc81191ca0@suse.com> Date: Mon, 19 Mar 2018 16:09:45 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.6.0 MIME-Version: 1.0 In-Reply-To: <20180319143154.3742-1-boris.ostrovsky@oracle.com> Content-Type: text/plain; charset=utf-8 Content-Language: de-DE Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 19/03/18 15:31, Boris Ostrovsky wrote: > Writing to it directly does not work for Xen PV guests. > > Signed-off-by: Boris Ostrovsky Reviewed-by: Juergen Gross Juergen