diff options
Diffstat (limited to 'OvmfPkg/Library/CcProbeLib')
| -rw-r--r-- | OvmfPkg/Library/CcProbeLib/CcProbeLib.c | 31 | ||||
| -rw-r--r-- | OvmfPkg/Library/CcProbeLib/DxeCcProbeLib.c | 68 | ||||
| -rw-r--r-- | OvmfPkg/Library/CcProbeLib/DxeCcProbeLib.inf (renamed from OvmfPkg/Library/CcProbeLib/CcProbeLib.inf) | 7 |
3 files changed, 72 insertions, 34 deletions
diff --git a/OvmfPkg/Library/CcProbeLib/CcProbeLib.c b/OvmfPkg/Library/CcProbeLib/CcProbeLib.c deleted file mode 100644 index d698e5c8d7..0000000000 --- a/OvmfPkg/Library/CcProbeLib/CcProbeLib.c +++ /dev/null @@ -1,31 +0,0 @@ -/** @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/DxeCcProbeLib.c b/OvmfPkg/Library/CcProbeLib/DxeCcProbeLib.c new file mode 100644 index 0000000000..868e32bf7f --- /dev/null +++ b/OvmfPkg/Library/CcProbeLib/DxeCcProbeLib.c @@ -0,0 +1,68 @@ +/** @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 <Uefi/UefiBaseType.h>
+#include <Library/CcProbeLib.h>
+#include <WorkArea.h>
+
+STATIC UINT8 mCcProbeGuestType = 0;
+STATIC BOOLEAN mCcProbed = FALSE;
+
+/**
+ * Read the the ConfidentialComputing Guest type from Ovmf work-area.
+ *
+ * @return The ConfidentialComputing Guest type
+ */
+STATIC
+UINT8
+ReadCcGuestType (
+ VOID
+ )
+{
+ OVMF_WORK_AREA *WorkArea;
+
+ if (!mCcProbed) {
+ WorkArea = (OVMF_WORK_AREA *)FixedPcdGet32 (PcdOvmfWorkAreaBase);
+ mCcProbeGuestType = WorkArea != NULL ? WorkArea->Header.GuestType : CcGuestTypeNonEncrypted;
+ mCcProbed = TRUE;
+ }
+
+ return mCcProbeGuestType;
+}
+
+/**
+ Probe the ConfidentialComputing Guest type. See defition of
+ CC_GUEST_TYPE in <ConfidentialComputingGuestAttr.h>.
+
+ @return The guest type
+
+**/
+UINT8
+EFIAPI
+CcProbe (
+ VOID
+ )
+{
+ return ReadCcGuestType ();
+}
+
+/**
+ * Constructor of DxeCcProbeLib
+ *
+ * @return EFI_SUCCESS Successfully called of constructor
+ */
+EFI_STATUS
+EFIAPI
+DxeCcProbeLibConstructor (
+ VOID
+ )
+{
+ ReadCcGuestType ();
+ return EFI_SUCCESS;
+}
diff --git a/OvmfPkg/Library/CcProbeLib/CcProbeLib.inf b/OvmfPkg/Library/CcProbeLib/DxeCcProbeLib.inf index 5300c9ba26..2fd0b4d46d 100644 --- a/OvmfPkg/Library/CcProbeLib/CcProbeLib.inf +++ b/OvmfPkg/Library/CcProbeLib/DxeCcProbeLib.inf @@ -8,14 +8,15 @@ [Defines]
INF_VERSION = 0x00010005
- BASE_NAME = CcProbeLib
+ BASE_NAME = DxeCcProbeLib
FILE_GUID = 05184ec9-abb0-4491-8584-e388639a7c48
MODULE_TYPE = BASE
VERSION_STRING = 1.0
- LIBRARY_CLASS = CcProbeLib
+ LIBRARY_CLASS = CcProbeLib|DXE_CORE DXE_DRIVER DXE_RUNTIME_DRIVER DXE_SMM_DRIVER UEFI_DRIVER UEFI_APPLICATION
+ CONSTRUCTOR = DxeCcProbeLibConstructor
[Sources]
- CcProbeLib.c
+ DxeCcProbeLib.c
[Packages]
MdePkg/MdePkg.dec
|