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[209.132.180.67]) by mx.google.com with ESMTP id 2si3943388pla.335.2017.11.08.06.24.25; Wed, 08 Nov 2017 06:24:36 -0800 (PST) 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; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=oracle.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752584AbdKHOXr (ORCPT + 82 others); Wed, 8 Nov 2017 09:23:47 -0500 Received: from aserp1040.oracle.com ([141.146.126.69]:35111 "EHLO aserp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751754AbdKHOXp (ORCPT ); Wed, 8 Nov 2017 09:23:45 -0500 Received: from aserv0022.oracle.com (aserv0022.oracle.com [141.146.126.234]) by aserp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id vA8EMpvx020730 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 8 Nov 2017 14:22:51 GMT Received: from userv0122.oracle.com (userv0122.oracle.com [156.151.31.75]) by aserv0022.oracle.com (8.14.4/8.14.4) with ESMTP id vA8EMprj024267 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 8 Nov 2017 14:22:51 GMT Received: from abhmp0003.oracle.com (abhmp0003.oracle.com [141.146.116.9]) by userv0122.oracle.com (8.14.4/8.14.4) with ESMTP id vA8EMnCb002799; Wed, 8 Nov 2017 14:22:50 GMT Received: from dhcp-burlington7-2nd-B-east-10-152-55-162.usdhcp.oraclecorp.com (/10.152.32.65) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 08 Nov 2017 06:22:49 -0800 Subject: Re: [Xen-devel] [PATCH 3/3] x86/xen: use guest_late_init to detect Xen PVH guest To: Juergen Gross , Jan Beulich References: <20171108090739.26491-1-jgross@suse.com> <20171108090739.26491-4-jgross@suse.com> <5A02F633020000780018D26A@suse.com> <5A030726020000780018D323@prv-mh.provo.novell.com> <37c2e2cc-4419-0adf-2f9c-ad7762c95cbd@suse.com> <5A030D78020000780018D37B@suse.com> <8e85c24d-b8ce-10aa-e030-f3d576eb781e@suse.com> Cc: len.brown@intel.com, x86@kernel.org, tglx@linutronix.de, xen-devel@lists.xenproject.org, mingo@redhat.com, pbonzini@redhat.com, rkrcmar@redhat.com, rjw@rjwysocki.net, pavel@ucw.cz, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, hpa@zytor.com From: Boris Ostrovsky Message-ID: Date: Wed, 8 Nov 2017 09:24:20 -0500 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.8.0 MIME-Version: 1.0 In-Reply-To: <8e85c24d-b8ce-10aa-e030-f3d576eb781e@suse.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Source-IP: aserv0022.oracle.com [141.146.126.234] Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 11/08/2017 09:17 AM, Juergen Gross wrote: > On 08/11/17 15:10, Boris Ostrovsky wrote: >> On 11/08/2017 08:36 AM, Juergen Gross wrote: >>> Regarding ACPI tables: current PVH implementation in Linux kernel >>> seems not to make use of the special information presented in the boot >>> information block. >> It will need to do so for dom0 (and, then, for simplicity, for all PVH >> guests). > What about: for all PVH guests booted via the PVH specific boot entry? > A guest booted via the default boot entry won't know it is PVH until > ACPI tables have been scanned. Right. Guest booted from default entry will have to discover RSDP in the usual way. -boris From 1583507787005835724@xxx Wed Nov 08 14:18:26 +0000 2017 X-GM-THRID: 1583488436185046031 X-Gmail-Labels: Inbox,Category Forums,HistoricalUnread