diff options
| -rw-r--r-- | OvmfPkg/Library/CcProbeLib/CcProbeLib.c | 31 | ||||
| -rw-r--r-- | OvmfPkg/Library/CcProbeLib/CcProbeLib.inf | 25 |
2 files changed, 56 insertions, 0 deletions
diff --git a/OvmfPkg/Library/CcProbeLib/CcProbeLib.c b/OvmfPkg/Library/CcProbeLib/CcProbeLib.c new file mode 100644 index 0000000000..d698e5c8d7 --- /dev/null +++ b/OvmfPkg/Library/CcProbeLib/CcProbeLib.c @@ -0,0 +1,31 @@ +/** @file
+
+ CcProbeLib is used to probe the Confidential computing guest type.
+
+ Copyright (c) 2022, Intel Corporation. All rights reserved.<BR>
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include <Library/CcProbeLib.h>
+#include <WorkArea.h>
+
+/**
+ Probe the ConfidentialComputing Guest type. See defition of
+ CC_GUEST_TYPE in <ConfidentialComputingGuestAttr.h>.
+
+ @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/CcProbeLib.inf b/OvmfPkg/Library/CcProbeLib/CcProbeLib.inf new file mode 100644 index 0000000000..5300c9ba26 --- /dev/null +++ b/OvmfPkg/Library/CcProbeLib/CcProbeLib.inf @@ -0,0 +1,25 @@ +## @file
+# CcProbeLib is used to probe Confidential Computing guest type.
+#
+# Copyright (c) 2022, Intel Corporation. All rights reserved.<BR>
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+##
+
+[Defines]
+ INF_VERSION = 0x00010005
+ BASE_NAME = CcProbeLib
+ FILE_GUID = 05184ec9-abb0-4491-8584-e388639a7c48
+ MODULE_TYPE = BASE
+ VERSION_STRING = 1.0
+ LIBRARY_CLASS = CcProbeLib
+
+[Sources]
+ CcProbeLib.c
+
+[Packages]
+ MdePkg/MdePkg.dec
+ OvmfPkg/OvmfPkg.dec
+
+[Pcd]
+ gUefiOvmfPkgTokenSpaceGuid.PcdOvmfWorkAreaBase
|