From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by mx.groups.io with SMTP id smtpd.web11.25369.1650164497717213024 for ; Sat, 16 Apr 2022 20:01:42 -0700 Authentication-Results: mx.groups.io; dkim=fail reason="unable to parse pub key" header.i=@intel.com header.s=intel header.b=fkkACXki; spf=pass (domain: intel.com, ip: 192.55.52.43, 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=1650164502; x=1681700502; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=lRYMItHUDfppib6rhQ28hCxKJi9ib6Ym5XpYiuYmu6Q=; b=fkkACXkiHaSxooS1xdGhSNlQIHYyw1BiMpOyqBQdcznUkbgpir7ujSyb 2ve0vafbtwX+BY8KSPOMMmOzt0ZecMWA2SxYd3VzFPQ7KD03bt6oWY88e iAtyH5Zx7Q6SJbvrK2A3OsN28z9TUHBIsUO29B9Z6UspaOCEdG+KPtix5 DPtn0Twgp9WX1UbmHUV7Bf7tGYAIK+ArzWIpDaP4GKgIA0rddcqcbhcLK IbtdcHbtp6fp9gcNyQxGobaChFt2F6IuYY7406O1mn621yputKp70pVyA a5T3EvsTifV672U6rCCgraAQTjcFb1DHQV1XBaznm1HxZk8pmrLXVts7l g==; X-IronPort-AV: E=McAfee;i="6400,9594,10318"; a="349806222" X-IronPort-AV: E=Sophos;i="5.90,266,1643702400"; d="scan'208";a="349806222" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Apr 2022 20:01:42 -0700 X-IronPort-AV: E=Sophos;i="5.90,266,1643702400"; d="scan'208";a="575044300" Received: from mxu9-mobl1.ccr.corp.intel.com ([10.255.29.191]) by orsmga008-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Apr 2022 20:01:40 -0700 From: "Min Xu" To: devel@edk2.groups.io Cc: Min Xu , Michael D Kinney , Liming Gao , Zhiguang Liu , James Bottomley , Jiewen Yao , Gerd Hoffmann Subject: [PATCH V3 3/7] MdePkg: Add CcProbeLib Date: Sun, 17 Apr 2022 11:01:09 +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 BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3902 CcProbeLib is used to probe the Confidential Computing guest type. This library is designed to run on SEC / PEI / DXE phases. A null instance of the library always returns CCGuestTypeNonEncrypted. A platform specific CcProbeLib will be implemented, for example, in OvmfPkg. Cc: Michael D Kinney Cc: Liming Gao Cc: Zhiguang Liu Cc: James Bottomley Cc: Jiewen Yao Cc: Gerd Hoffmann Signed-off-by: Min Xu --- MdePkg/Include/Library/CcProbeLib.h | 26 +++++++++++++++++++ .../Library/CcProbeLibNull/CcProbeLibNull.c | 26 +++++++++++++++++++ .../Library/CcProbeLibNull/CcProbeLibNull.inf | 21 +++++++++++++++ MdePkg/MdePkg.dec | 5 ++++ MdePkg/MdePkg.dsc | 1 + 5 files changed, 79 insertions(+) create mode 100644 MdePkg/Include/Library/CcProbeLib.h create mode 100644 MdePkg/Library/CcProbeLibNull/CcProbeLibNull.c create mode 100644 MdePkg/Library/CcProbeLibNull/CcProbeLibNull.inf diff --git a/MdePkg/Include/Library/CcProbeLib.h b/MdePkg/Include/Library/CcProbeLib.h new file mode 100644 index 000000000000..2857dddfb2d3 --- /dev/null +++ b/MdePkg/Include/Library/CcProbeLib.h @@ -0,0 +1,26 @@ +/** @file + +Copyright (c) 2022, Intel Corporation. All rights reserved.
+SPDX-License-Identifier: BSD-2-Clause-Patent + +**/ + +#ifndef CC_PROBE_LIB_H_ +#define CC_PROBE_LIB_H_ + +#include + +/** + Probe the ConfidentialComputing Guest type. See defition of + CC_GUEST_TYPE in . + + @return The guest type + +**/ +UINT8 +EFIAPI +CcProbe ( + VOID + ); + +#endif diff --git a/MdePkg/Library/CcProbeLibNull/CcProbeLibNull.c b/MdePkg/Library/CcProbeLibNull/CcProbeLibNull.c new file mode 100644 index 000000000000..152d900eb099 --- /dev/null +++ b/MdePkg/Library/CcProbeLibNull/CcProbeLibNull.c @@ -0,0 +1,26 @@ +/** @file + + Null stub of CcProbeLib + + Copyright (c) 2022, Intel Corporation. All rights reserved.
+ SPDX-License-Identifier: BSD-2-Clause-Patent + +**/ + +#include + +/** + Probe the ConfidentialComputing Guest type. See defition of + CC_GUEST_TYPE in . + + @return The guest type + +**/ +UINT8 +EFIAPI +CcProbe ( + VOID + ) +{ + return CCGuestTypeNonEncrypted; +} diff --git a/MdePkg/Library/CcProbeLibNull/CcProbeLibNull.inf b/MdePkg/Library/CcProbeLibNull/CcProbeLibNull.inf new file mode 100644 index 000000000000..f37c25f73439 --- /dev/null +++ b/MdePkg/Library/CcProbeLibNull/CcProbeLibNull.inf @@ -0,0 +1,21 @@ +## @file +# CcProbeLib null instance. +# +# Copyright (c) 2022, Intel Corporation. All rights reserved.
+# SPDX-License-Identifier: BSD-2-Clause-Patent +# +## + +[Defines] + INF_VERSION = 0x00010005 + BASE_NAME = CcProbeLibNull + FILE_GUID = B15D67FE-0DAC-4316-8E26-8A6b85E43782 + MODULE_TYPE = BASE + VERSION_STRING = 1.0 + LIBRARY_CLASS = CcProbeLib + +[Sources] + CcProbeLibNull.c + +[Packages] + MdePkg/MdePkg.dec diff --git a/MdePkg/MdePkg.dec b/MdePkg/MdePkg.dec index 1934c9840423..faeb28c80cbd 100644 --- a/MdePkg/MdePkg.dec +++ b/MdePkg/MdePkg.dec @@ -267,6 +267,11 @@ # RegisterFilterLib|Include/Library/RegisterFilterLib.h + ## @libraryclass This library provides interfances to probe ConfidentialComputing guest type. + # + # + CcProbeLib|Include/Library/CcProbeLib.h + [LibraryClasses.IA32, LibraryClasses.X64, LibraryClasses.AARCH64] ## @libraryclass Provides services to generate random number. # diff --git a/MdePkg/MdePkg.dsc b/MdePkg/MdePkg.dsc index d6a7af412be7..c8d282882ec1 100644 --- a/MdePkg/MdePkg.dsc +++ b/MdePkg/MdePkg.dsc @@ -130,6 +130,7 @@ MdePkg/Library/StandaloneMmServicesTableLib/StandaloneMmServicesTableLib.inf MdePkg/Library/RegisterFilterLibNull/RegisterFilterLibNull.inf + MdePkg/Library/CcProbeLibNull/CcProbeLibNull.inf [Components.IA32, Components.X64, Components.ARM, Components.AARCH64] # -- 2.29.2.windows.2