From nobody Mon Feb 9 09:08:06 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+92942+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+92942+1787277+3901457@groups.io; dmarc=fail(p=none dis=none) header.from=intel.com ARC-Seal: i=1; a=rsa-sha256; t=1661821455; cv=none; d=zohomail.com; s=zohoarc; b=MhZyAD52WbTdi6B6L2qyq9KcU5fZZl0TG3B+fzVL+An4qiXUkgC5yvj0AnyiTZv4gMNyejsR90XC63PLLA19hSOjAignJCTocRIx07xn7zWqy8jfjXlySo1gJEMBarNowlhnlTZFt+ve3wjnWzNw5kNCckxfuRIoZK4j07+4gIw= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1661821455; 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=7I0ziOzLmzXCE6AHlfDVg6N/9U9KFRsEabBSY0ogEtw=; b=N/Fviv6NJ7ZiBzvcGb5g36M+17ex/PkjenxqP5gSTpDdf5ftiU3N8b1nfc8G8yKzPlOkLJTnuR7OE7LgF3MQoEOYmGoANv/EiIPGtg5P5042uySjG+cPEx+SssYly9dBm3i2gk3dZbUvr+yO37FFoDJ0j7c/A8A7fU95ICriJoQ= 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+92942+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 1661821455765641.490969629175; Mon, 29 Aug 2022 18:04:15 -0700 (PDT) Return-Path: X-Received: by 127.0.0.2 with SMTP id MUIJYY1788612xMVawFqMNyh; Mon, 29 Aug 2022 18:04:15 -0700 X-Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) by mx.groups.io with SMTP id smtpd.web09.6263.1661821454207048478 for ; Mon, 29 Aug 2022 18:04:14 -0700 X-IronPort-AV: E=McAfee;i="6500,9779,10454"; a="274794053" X-IronPort-AV: E=Sophos;i="5.93,274,1654585200"; d="scan'208";a="274794053" X-Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Aug 2022 18:03:55 -0700 X-IronPort-AV: E=Sophos;i="5.93,273,1654585200"; d="scan'208";a="672612255" X-Received: from mxu9-mobl1.ccr.corp.intel.com ([10.238.4.200]) by fmsmga008-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Aug 2022 18:03:53 -0700 From: "Min Xu" To: devel@edk2.groups.io Cc: Min M Xu , Erdem Aktas , James Bottomley , Jiewen Yao , Gerd Hoffmann , Tom Lendacky Subject: [edk2-devel] [PATCH V5 1/2] OvmfPkg: Add SecPeiCcProbeLib Date: Tue, 30 Aug 2022 09:03:39 +0800 Message-Id: <8864b7692e80f47f9f00db7b252113ac9a87c8c1.1661817901.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: J2KiiJ5R3aSdHyPdXZrT5iZPx1787277AA= Content-Transfer-Encoding: quoted-printable DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=groups.io; q=dns/txt; s=20140610; t=1661821455; bh=cZBwC1l5YOkC9f9m8G/A/MYtDH9hODARThvVvk6TIF0=; h=Cc:Date:From:Reply-To:Subject:To; b=XwGsMFSgEK2C/WqjXAwdn+3f++icqQwUOlfiSiMQtUNusGFt6lEzeuM7lM23OhePUHd tx45OQXKTe1Y5XbLBehjox8wX2XF1MCU5s7KSenJpVSHciCbqoh716MXxgjJ3chTPtIK+ rs5mO+tr+olHH0uj/KPRK9jmoDrsOxcyilc= X-ZohoMail-DKIM: pass (identity @groups.io) X-ZM-MESSAGEID: 1661821456233100003 Content-Type: text/plain; charset="utf-8" From: Min M Xu BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3D3974 SecPeiCcProbeLib is designed to probe the Confidential Computing guest type in SEC/PEI phase. The CC guest type was set by each CC guest at the beginning of boot up and saved in PcdOvmfWorkArea. Cc: Erdem Aktas Cc: James Bottomley Cc: Jiewen Yao Cc: Gerd Hoffmann Cc: Tom Lendacky Acked-by: Gerd Hoffmann Signed-off-by: Min Xu --- OvmfPkg/Library/CcProbeLib/SecPeiCcProbeLib.c | 31 +++++++++++++++++++ .../Library/CcProbeLib/SecPeiCcProbeLib.inf | 25 +++++++++++++++ 2 files changed, 56 insertions(+) create mode 100644 OvmfPkg/Library/CcProbeLib/SecPeiCcProbeLib.c create mode 100644 OvmfPkg/Library/CcProbeLib/SecPeiCcProbeLib.inf diff --git a/OvmfPkg/Library/CcProbeLib/SecPeiCcProbeLib.c b/OvmfPkg/Librar= y/CcProbeLib/SecPeiCcProbeLib.c new file mode 100644 index 000000000000..d698e5c8d7f8 --- /dev/null +++ b/OvmfPkg/Library/CcProbeLib/SecPeiCcProbeLib.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/SecPeiCcProbeLib.inf b/OvmfPkg/Libr= ary/CcProbeLib/SecPeiCcProbeLib.inf new file mode 100644 index 000000000000..f63ed71e7c28 --- /dev/null +++ b/OvmfPkg/Library/CcProbeLib/SecPeiCcProbeLib.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 SecPeiCcProbeLib + FILE_GUID =3D 78eb7f2a-a42a-4b01-b160-5a05a0a52bac + MODULE_TYPE =3D BASE + VERSION_STRING =3D 1.0 + LIBRARY_CLASS =3D CcProbeLib|SEC PEIM PEI_CORE + +[Sources] + SecPeiCcProbeLib.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 (#92942): https://edk2.groups.io/g/devel/message/92942 Mute This Topic: https://groups.io/mt/93340306/1787277 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-