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| author | Min Xu <min.m.xu@intel.com> | 2022-04-19 08:26:24 +0800 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2022-04-19 01:26:08 +0000 |
| commit | 74a3eb975da7059b825c84bed759d2845de8de68 (patch) | |
| tree | 42095c4fcaaa3a8debd230f8566a25a8befae362 | |
| parent | d020ac55b6968d3bcaf631307152b51738286583 (diff) | |
| download | edk2-74a3eb975da7059b825c84bed759d2845de8de68.tar.gz edk2-74a3eb975da7059b825c84bed759d2845de8de68.tar.bz2 edk2-74a3eb975da7059b825c84bed759d2845de8de68.zip | |
MdePkg: Add CcProbeLibNull
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 <michael.d.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
Cc: James Bottomley <jejb@linux.ibm.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Min Xu <min.m.xu@intel.com>
| -rw-r--r-- | MdePkg/Include/Library/CcProbeLib.h | 26 | ||||
| -rw-r--r-- | MdePkg/Library/CcProbeLibNull/CcProbeLibNull.c | 26 | ||||
| -rw-r--r-- | MdePkg/Library/CcProbeLibNull/CcProbeLibNull.inf | 21 | ||||
| -rw-r--r-- | MdePkg/MdePkg.dec | 5 | ||||
| -rw-r--r-- | MdePkg/MdePkg.dsc | 1 |
5 files changed, 79 insertions, 0 deletions
diff --git a/MdePkg/Include/Library/CcProbeLib.h b/MdePkg/Include/Library/CcProbeLib.h new file mode 100644 index 0000000000..2857dddfb2 --- /dev/null +++ b/MdePkg/Include/Library/CcProbeLib.h @@ -0,0 +1,26 @@ +/** @file
+
+Copyright (c) 2022, Intel Corporation. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef CC_PROBE_LIB_H_
+#define CC_PROBE_LIB_H_
+
+#include <ConfidentialComputingGuestAttr.h>
+
+/**
+ Probe the ConfidentialComputing Guest type. See defition of
+ CC_GUEST_TYPE in <ConfidentialComputingGuestAttr.h>.
+
+ @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 0000000000..ca4111dc30 --- /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.<BR>
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include <Library/CcProbeLib.h>
+
+/**
+ Probe the ConfidentialComputing Guest type. See defition of
+ CC_GUEST_TYPE in <ConfidentialComputingGuestAttr.h>.
+
+ @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 0000000000..f37c25f734 --- /dev/null +++ b/MdePkg/Library/CcProbeLibNull/CcProbeLibNull.inf @@ -0,0 +1,21 @@ +## @file
+# CcProbeLib null instance.
+#
+# Copyright (c) 2022, Intel Corporation. All rights reserved.<BR>
+# 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 1934c98404..faeb28c80c 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 d6a7af412b..c8d282882e 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]
#
|