From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received-SPF: Pass (sender SPF authorized) identity=mailfrom; client-ip=209.132.183.28; helo=mx1.redhat.com; envelope-from=lersek@redhat.com; receiver=edk2-devel@lists.01.org Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ml01.01.org (Postfix) with ESMTPS id E8001208F79F2 for ; Fri, 20 Oct 2017 09:47:31 -0700 (PDT) Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 1F723C059B78; Fri, 20 Oct 2017 16:51:11 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com 1F723C059B78 Authentication-Results: ext-mx08.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com Authentication-Results: ext-mx08.extmail.prod.ext.phx2.redhat.com; spf=fail smtp.mailfrom=lersek@redhat.com Received: from lacos-laptop-7.usersys.redhat.com (ovpn-120-150.rdu2.redhat.com [10.10.120.150]) by smtp.corp.redhat.com (Postfix) with ESMTP id 120985D962; Fri, 20 Oct 2017 16:51:09 +0000 (UTC) To: Ard Biesheuvel , "Gao, Liming" Cc: "edk2-devel@lists.01.org" , Leif Lindholm References: <20171020112325.10814-1-ard.biesheuvel@linaro.org> <20171020130024.l73uww7cxsjnwbsv@bivouac.eciton.net> <51d0ef33-022f-7153-9acd-9bc4a26cdd59@redhat.com> <4A89E2EF3DFEDB4C8BFDE51014F606A14E16EABD@SHSMSX104.ccr.corp.intel.com> From: Laszlo Ersek Message-ID: Date: Fri, 20 Oct 2017 18:51:09 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.4.0 MIME-Version: 1.0 In-Reply-To: X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.32]); Fri, 20 Oct 2017 16:51:11 +0000 (UTC) Subject: Re: [PATCH] ArmPlatformPkg/PrePeiCore: seed temporary stack before entering PEI core X-BeenThere: edk2-devel@lists.01.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: EDK II Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 20 Oct 2017 16:47:32 -0000 Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit On 10/20/17 18:39, Ard Biesheuvel wrote: > On 20 October 2017 at 17:37, Gao, Liming wrote: >> Ard: >> This case is to share the same value between PeiCore and SecCore. I also think it will be better to define one fixed PCD in MdeModulePkg.dec for this value. Could you submit bugzillar to catch this issue first? >> > > Certainly! Would it be possible to define the PCD as UINT32, and task 64-bit SEC (and PEI_CORE) code to first construct the wider value manually (in a register or otherwise)? Just thinking out loud. Thanks! Laszlo