From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by mx.groups.io with SMTP id smtpd.web08.3858.1650328002343868729 for ; Mon, 18 Apr 2022 17:26:50 -0700 Authentication-Results: mx.groups.io; dkim=fail reason="unable to parse pub key" header.i=@intel.com header.s=intel header.b=nj827rgg; spf=pass (domain: intel.com, ip: 134.134.136.100, 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=1650328010; x=1681864010; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=dVHs5IGVKoJSz+VtYoDMVejaMqkZPnnPPa4lpZA7QOM=; b=nj827rgg5t4NICggs/1rl+/OxIz9IQOR8CIi87HnRm44mZo1O9Z8Q5Ii ZMRyBOYLyEoYSCvhSYJd04C0M8To5My8FrmOmTfLvGb+9YCEWWf8GEto+ ugf0yl4zzMSkR5XgRS1jEEaK2JyxzLHAd6HKOkCzZ+1ziZjjVQE4ttrfA /zmrgnie/B0cZ5G0D+M4wbJLST35V6zFRyURv98jF/xabo2QXqYpAoOi3 jvmLIWi6YaKkb9xWSgxShJjySNx4ld67GUPbKZm0BcH7qSyT9LuvH+T5o 83NvnaRVyAk7gzhSNaNbS4XljvNp8bED+p07drpkrQPFP3BemYmcoiFod g==; X-IronPort-AV: E=McAfee;i="6400,9594,10321"; a="326540348" X-IronPort-AV: E=Sophos;i="5.90,271,1643702400"; d="scan'208";a="326540348" Received: from orsmga006.jf.intel.com ([10.7.209.51]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Apr 2022 17:26:49 -0700 X-IronPort-AV: E=Sophos;i="5.90,271,1643702400"; d="scan'208";a="529079988" Received: from mxu9-mobl1.ccr.corp.intel.com ([10.249.171.121]) by orsmga006-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Apr 2022 17:26:47 -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 , Tom Lendacky Subject: [PATCH V4 3/7] MdePkg: Add CcProbeLibNull Date: Tue, 19 Apr 2022 08:26:24 +0800 Message-Id: <90ad9eafb65e53d912d3f76a582a58e340bd7bda.1650326140.git.min.m.xu@intel.com> 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 Reviewed-by: Liming Gao Reviewed-by: Jiewen Yao Reviewed-by: Tom Lendacky 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..ca4111dc3077 --- /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