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 503782117D288 for ; Tue, 23 Oct 2018 02:44:00 -0700 (PDT) Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 5FF9130013D0; Tue, 23 Oct 2018 09:44:00 +0000 (UTC) Received: from lacos-laptop-7.usersys.redhat.com (ovpn-120-214.rdu2.redhat.com [10.10.120.214]) by smtp.corp.redhat.com (Postfix) with ESMTP id 16C075D6AA; Tue, 23 Oct 2018 09:43:58 +0000 (UTC) To: "Ni, Ruiyu" , "Lohr, Paul A" , "edk2-devel@lists.01.org" Cc: "Kinney, Michael D" , "Yao, Jiewen" References: <20181022090333.95988-1-ruiyu.ni@intel.com> <1998f4ff-13e0-3918-db78-74ada10fddc0@Intel.com> From: Laszlo Ersek Message-ID: Date: Tue, 23 Oct 2018 11:43:58 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: <1998f4ff-13e0-3918-db78-74ada10fddc0@Intel.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.48]); Tue, 23 Oct 2018 09:44:00 +0000 (UTC) Subject: Re: [PATCH] MdeModulePkg/PiSmmIpl: Do not reset SMRAM to UC when CPU driver runs X-BeenThere: edk2-devel@lists.01.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: EDK II Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 23 Oct 2018 09:44:01 -0000 Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit On 10/23/18 11:36, Ni, Ruiyu wrote: > On 10/23/2018 11:12 AM, Lohr, Paul A wrote: >> Hello, >> >> Code to remove SMRAM = UC (line 650-ish) looks good.  I would suggest >> adding some debug comments in the area it was removed.  Thanks. > > debug message or comments? > I guess you'd like to have some comments to say "SMRR is enabled by CPU > SMM driver so no need to reset the SMRAM to UC in MTRR". Correct? Such a comment sounds great to me, just please include: "by calling SmmCpuFeaturesInitializeProcessor from SmmCpuFeaturesLib". [...] Thanks! Laszlo