From nobody Mon Feb 9 05:55:05 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zohomail.com: domain of groups.io designates 66.175.222.108 as permitted sender) client-ip=66.175.222.108; envelope-from=bounce+27952+88920+1787277+3901457@groups.io; helo=mail02.groups.io; Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of groups.io designates 66.175.222.108 as permitted sender) smtp.mailfrom=bounce+27952+88920+1787277+3901457@groups.io; dmarc=fail(p=none dis=none) header.from=intel.com ARC-Seal: i=1; a=rsa-sha256; t=1649981256; cv=none; d=zohomail.com; s=zohoarc; b=dYWtLGbRN7CcRWzTuvI2prwipH1N97TCB1sxwxmR4PkAJPC0ESrfdmOaPF/rcMhaPeUVtzMc/1rhr5EImBKf+/OsVGCAPQBSsdK6MxyFdMSe1ViIkVQJ3R3mI6As4uL+2IkcPUW+k8R+tEpx2AESq9028snzhfqY8cyqp8IrC9c= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1649981256; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Id:List-Help:List-Unsubscribe:MIME-Version:Message-ID:Reply-To:References:Sender:Subject:To; bh=4gp9eZ3BOOlqxrptfpPBirv4BDNPZk1x/WTlJegLup0=; b=imoDNyINXQGgyjAXqeytzKfjXlOLRp6XGx/kSV9U8TNZm0IpgQYkJjV/hfxdfepz9TEmL1uPD+YsoNbVQJnQwx0iFq6646CdtKtvAnaBp1oUs6Ht6CfQXJJhryMZcZugJEvn2bDxhXJ8TUDysNLvJBchLzp+6XNKHd2I9A585u8= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of groups.io designates 66.175.222.108 as permitted sender) smtp.mailfrom=bounce+27952+88920+1787277+3901457@groups.io; dmarc=fail header.from= (p=none dis=none) Received: from mail02.groups.io (mail02.groups.io [66.175.222.108]) by mx.zohomail.com with SMTPS id 1649981256229470.63038660947154; Thu, 14 Apr 2022 17:07:36 -0700 (PDT) Return-Path: X-Received: by 127.0.0.2 with SMTP id eAslYY1788612xfR1Wc5C0B7; Thu, 14 Apr 2022 17:07:35 -0700 X-Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by mx.groups.io with SMTP id smtpd.web08.1927.1649981244283090489 for ; Thu, 14 Apr 2022 17:07:35 -0700 X-IronPort-AV: E=McAfee;i="6400,9594,10317"; a="262504581" X-IronPort-AV: E=Sophos;i="5.90,261,1643702400"; d="scan'208";a="262504581" X-Received: from orsmga007.jf.intel.com ([10.7.209.58]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 14 Apr 2022 17:07:35 -0700 X-IronPort-AV: E=Sophos;i="5.90,261,1643702400"; d="scan'208";a="552923323" X-Received: from mxu9-mobl1.ccr.corp.intel.com ([10.249.168.38]) by orsmga007-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 14 Apr 2022 17:07:31 -0700 From: "Min Xu" To: devel@edk2.groups.io Cc: Min Xu , Michael D Kinney , Liming Gao , Zhiguang Liu , James Bottomley , James Bottomley , Jiewen Yao , Gerd Hoffmann , Brijesh Singh , Erdem Aktas , Tom Lendacky Subject: [edk2-devel] [PATCH V2 4/6] OvmfPkg: Add CcProbeLib Date: Fri, 15 Apr 2022 08:07:07 +0800 Message-Id: <195e8aa1b61fc1dbc5084d1287d6f779482556e6.1649980548.git.min.m.xu@intel.com> In-Reply-To: References: MIME-Version: 1.0 Precedence: Bulk List-Unsubscribe: List-Subscribe: List-Help: Sender: devel@edk2.groups.io List-Id: Mailing-List: list devel@edk2.groups.io; contact devel+owner@edk2.groups.io Reply-To: devel@edk2.groups.io,min.m.xu@intel.com X-Gm-Message-State: 4Hx15TbGjAqb4b4PFphMSDxtx1787277AA= Content-Transfer-Encoding: quoted-printable DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=groups.io; q=dns/txt; s=20140610; t=1649981255; bh=WQzXAI+FHfnOjY8grmyiHl4iH2jIpJFrp2RLtVgnFjc=; h=Cc:Date:From:Reply-To:Subject:To; b=hi2YIpB39W1cJdmY761IyfGDAkUsoRGCnFrEDeBAOs2hfQ+0n29tekKFhdM5ehg1+UQ Hu0fNNr69HrN8bbetfsKNp7YbxM0YlayuBVPxqUY/PmBur1XC1uGzl6Asq3l73TaGzKop iP1OW4JXWxbLILr6EkZVctn71ZoNlGqL8cU= X-ZohoMail-DKIM: pass (identity @groups.io) X-ZM-MESSAGEID: 1649981257726100011 Content-Type: text/plain; charset="utf-8" BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3D3902 This is the OvmfPkg specific CcProbeLib. It checks the Ovmf WorkArea (PcdOvmfWorkAreaBase) to return the guest type. Cc: Michael D Kinney Cc: Liming Gao Cc: Zhiguang Liu Cc: James Bottomley Cc: James Bottomley Cc: Jiewen Yao Cc: Gerd Hoffmann Cc: Brijesh Singh Cc: Erdem Aktas Cc: Tom Lendacky Signed-off-by: Min Xu --- OvmfPkg/Library/CcProbeLib/CcProbeLib.c | 31 +++++++++++++++++++++++ OvmfPkg/Library/CcProbeLib/CcProbeLib.inf | 25 ++++++++++++++++++ 2 files changed, 56 insertions(+) create mode 100644 OvmfPkg/Library/CcProbeLib/CcProbeLib.c create mode 100644 OvmfPkg/Library/CcProbeLib/CcProbeLib.inf diff --git a/OvmfPkg/Library/CcProbeLib/CcProbeLib.c b/OvmfPkg/Library/CcPr= obeLib/CcProbeLib.c new file mode 100644 index 000000000000..b4babcb423f7 --- /dev/null +++ b/OvmfPkg/Library/CcProbeLib/CcProbeLib.c @@ -0,0 +1,31 @@ +/** @file + + CcProbeLib is used to probe the Confidential computing guest type. + + Copyright (c) 2022, Intel Corporation. All rights reserved.
+ SPDX-License-Identifier: BSD-2-Clause-Patent + +**/ + +#include +#include + +/** + Probe the ConfidentialComputing Guest type. See defition of + CC_GUEST_TYPE in . + + @return The guest type + +**/ +UINT8 +EFIAPI +CcProbe ( + VOID + ) +{ + OVMF_WORK_AREA *WorkArea; + + WorkArea =3D (OVMF_WORK_AREA *)FixedPcdGet32 (PcdOvmfWorkAreaBase); + + return WorkArea !=3D NULL ? WorkArea->Header.GuestType : CCGuestTypeNonE= ncrypted; +} diff --git a/OvmfPkg/Library/CcProbeLib/CcProbeLib.inf b/OvmfPkg/Library/Cc= ProbeLib/CcProbeLib.inf new file mode 100644 index 000000000000..5300c9ba2644 --- /dev/null +++ b/OvmfPkg/Library/CcProbeLib/CcProbeLib.inf @@ -0,0 +1,25 @@ +## @file +# CcProbeLib is used to probe Confidential Computing guest type. +# +# Copyright (c) 2022, Intel Corporation. All rights reserved.
+# SPDX-License-Identifier: BSD-2-Clause-Patent +# +## + +[Defines] + INF_VERSION =3D 0x00010005 + BASE_NAME =3D CcProbeLib + FILE_GUID =3D 05184ec9-abb0-4491-8584-e388639a7c48 + MODULE_TYPE =3D BASE + VERSION_STRING =3D 1.0 + LIBRARY_CLASS =3D CcProbeLib + +[Sources] + CcProbeLib.c + +[Packages] + MdePkg/MdePkg.dec + OvmfPkg/OvmfPkg.dec + +[Pcd] + gUefiOvmfPkgTokenSpaceGuid.PcdOvmfWorkAreaBase --=20 2.29.2.windows.2 -=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#88920): https://edk2.groups.io/g/devel/message/88920 Mute This Topic: https://groups.io/mt/90477278/1787277 Group Owner: devel+owner@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [importer@patchew.org] -=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-