From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received-SPF: Pass (sender SPF authorized) identity=mailfrom; client-ip=134.134.136.65; helo=mga03.intel.com; envelope-from=hao.a.wu@intel.com; receiver=edk2-devel@lists.01.org Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) (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 AA58C22283508 for ; Tue, 6 Mar 2018 05:26:52 -0800 (PST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga103.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 06 Mar 2018 05:33:06 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.47,431,1515484800"; d="scan'208";a="39615556" Received: from shwdeopenpsi014.ccr.corp.intel.com ([10.239.9.10]) by orsmga002.jf.intel.com with ESMTP; 06 Mar 2018 05:33:04 -0800 From: Hao Wu To: edk2-devel@lists.01.org Cc: Hao Wu , Jian J Wang , Star Zeng , Eric Dong , Jiewen Yao , Ruiyu Ni Date: Tue, 6 Mar 2018 21:33:01 +0800 Message-Id: <20180306133303.14772-1-hao.a.wu@intel.com> X-Mailer: git-send-email 2.12.0.windows.1 Subject: [PATCH v2 0/2] Resolve feature conflict between NX and Stack guard X-BeenThere: edk2-devel@lists.01.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: EDK II Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 06 Mar 2018 13:26:53 -0000 V2 changes: A. Use Hoblib APIs to get the base of stack from Hob. B. Remove unnecessary local variable used in function InitializeDxeNxMemoryProtectionPolicy(). V1 history: If enabled, NX memory protection feature will mark some types of active memory as NX (non-executable), which includes the first page of the stack. This will overwrite the attributes of the first page of the stack if the stack guard feature is also enabled. The series will override the attributes setting to the first page of the stack by adding back the 'EFI_MEMORY_RP' attribute when the stack guard feature is enabled. Cc: Jian J Wang Cc: Star Zeng Cc: Eric Dong Cc: Jiewen Yao Cc: Ruiyu Ni Hao Wu (2): MdeModulePkg/Core: Refine handling NULL detection in NX setting MdeModulePkg/Core: Fix feature conflict between NX and Stack guard MdeModulePkg/Core/Dxe/DxeMain.inf | 4 +- MdeModulePkg/Core/Dxe/Misc/MemoryProtection.c | 74 +++++++++++++++++++++++---- 2 files changed, 67 insertions(+), 11 deletions(-) -- 2.12.0.windows.1