From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) by mx.groups.io with SMTP id smtpd.web12.2468.1657174776261985407 for ; Wed, 06 Jul 2022 23:19:36 -0700 Authentication-Results: mx.groups.io; dkim=fail reason="unable to parse pub key" header.i=@intel.com header.s=intel header.b=juLW+E2v; spf=pass (domain: intel.com, ip: 192.55.52.151, mailfrom: min.m.xu@intel.com) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1657174776; x=1688710776; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=QhvZAyRGRtzutL8WdJgw2njjdF4wNyjELnqP2bbykDk=; b=juLW+E2vtMm4qHqh9YnA9vIXTrL73D6Ed3MdzFkQrpyNX8gZ6MZR+ZJF ELN7wwuiJQk8Ra/U9eq3es2s0de5jsLG1mm9YaoQTU0IySdbDknK/hgqw XS4Hq6EP7sw4W4wVqocV5srs0hRbOl28GyL4H/m4PE4GHezvG7G2AEj0m /XN/g8iqXenKu/hxK4NqcP3elXWL9EJFa41l9x9+pcBIk7VTD1NbwY32e e1bVedEzU9ZzxYtP0CiWjVvH7Djyd1C0aV6w5w2sQ6ekkbk6bB46IEA0R li0Pj43FAbp79hl85HvhRwra9rpE2AWaDbPQCBQbYMoWirq0Cc0IcPZkq g==; X-IronPort-AV: E=McAfee;i="6400,9594,10400"; a="264358761" X-IronPort-AV: E=Sophos;i="5.92,252,1650956400"; d="scan'208";a="264358761" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Jul 2022 23:19:11 -0700 X-IronPort-AV: E=Sophos;i="5.92,252,1650956400"; d="scan'208";a="620653851" Received: from mxu9-mobl1.ccr.corp.intel.com ([10.255.30.203]) by orsmga008-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Jul 2022 23:19:09 -0700 From: "Min Xu" To: devel@edk2.groups.io Cc: Min M Xu , Erdem Aktas , James Bottomley , Jiewen Yao , Gerd Hoffmann , Tom Lendacky , Yuan Yu Subject: [PATCH 1/2] OvmfPkg: Add SecPeiCcProbeLib Date: Thu, 7 Jul 2022 14:17:45 +0800 Message-Id: X-Mailer: git-send-email 2.29.2.windows.2 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Min M Xu BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3974 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 Cc: Yuan Yu 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/Library/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 = (OVMF_WORK_AREA *)FixedPcdGet32 (PcdOvmfWorkAreaBase); + + return WorkArea != NULL ? WorkArea->Header.GuestType : CcGuestTypeNonEncrypted; +} diff --git a/OvmfPkg/Library/CcProbeLib/SecPeiCcProbeLib.inf b/OvmfPkg/Library/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 = 0x00010005 + BASE_NAME = SecPeiCcProbeLib + FILE_GUID = 78eb7f2a-a42a-4b01-b160-5a05a0a52bac + MODULE_TYPE = BASE + VERSION_STRING = 1.0 + LIBRARY_CLASS = CcProbeLib|SEC PEIM PEI_CORE + +[Sources] + SecPeiCcProbeLib.c + +[Packages] + MdePkg/MdePkg.dec + OvmfPkg/OvmfPkg.dec + +[Pcd] + gUefiOvmfPkgTokenSpaceGuid.PcdOvmfWorkAreaBase -- 2.29.2.windows.2