diff options
| author | Guo Mang <mang.guo@intel.com> | 2016-06-02 11:01:55 +0800 |
|---|---|---|
| committer | Hao Wu <hao.a.wu@intel.com> | 2016-06-07 09:56:49 +0800 |
| commit | 18c0e668087a51a1e15ab8a661a36c54685997af (patch) | |
| tree | a74be33de69796d0f4df0b7115270ddb6843a8b8 /BraswellPlatformPkg/Override/IntelFspWrapperPkg/Library/SecPeiFspPlatformSecLibSample/SecGetPerformance.c | |
| parent | c6521912d613f6fdf042edf9008359b9376f6c09 (diff) | |
| download | edk2-platforms-18c0e668087a51a1e15ab8a661a36c54685997af.tar.xz | |
BraswellPlatformPkg: Add Override/IntelFspWrapperPkg
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Guo Mang <mang.guo@intel.com>
Diffstat (limited to 'BraswellPlatformPkg/Override/IntelFspWrapperPkg/Library/SecPeiFspPlatformSecLibSample/SecGetPerformance.c')
| -rw-r--r-- | BraswellPlatformPkg/Override/IntelFspWrapperPkg/Library/SecPeiFspPlatformSecLibSample/SecGetPerformance.c | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/BraswellPlatformPkg/Override/IntelFspWrapperPkg/Library/SecPeiFspPlatformSecLibSample/SecGetPerformance.c b/BraswellPlatformPkg/Override/IntelFspWrapperPkg/Library/SecPeiFspPlatformSecLibSample/SecGetPerformance.c new file mode 100644 index 0000000000..d6085b73c7 --- /dev/null +++ b/BraswellPlatformPkg/Override/IntelFspWrapperPkg/Library/SecPeiFspPlatformSecLibSample/SecGetPerformance.c @@ -0,0 +1,89 @@ +/** @file
+ Sample to provide SecGetPerformance function.
+
+ Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>
+
+ This program and the accompanying materials
+ are licensed and made available under the terms and conditions of the BSD License
+ which accompanies this distribution. The full text of the license may be found at
+ http://opensource.org/licenses/bsd-license.php.
+
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include <PiPei.h>
+#include <Ppi/SecPerformance.h>
+#include <Ppi/TopOfTemporaryRam.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/TimerLib.h>
+#include <Library/DebugLib.h>
+
+/**
+ This interface conveys performance information out of the Security (SEC) phase into PEI.
+
+ This service is published by the SEC phase. The SEC phase handoff has an optional
+ EFI_PEI_PPI_DESCRIPTOR list as its final argument when control is passed from SEC into the
+ PEI Foundation. As such, if the platform supports collecting performance data in SEC,
+ this information is encapsulated into the data structure abstracted by this service.
+ This information is collected for the boot-strap processor (BSP) on IA-32.
+
+ @param[in] PeiServices The pointer to the PEI Services Table.
+ @param[in] This The pointer to this instance of the PEI_SEC_PERFORMANCE_PPI.
+ @param[out] Performance The pointer to performance data collected in SEC phase.
+
+ @retval EFI_SUCCESS The data was successfully returned.
+
+**/
+EFI_STATUS
+EFIAPI
+SecGetPerformance (
+ IN CONST EFI_PEI_SERVICES **PeiServices,
+ IN PEI_SEC_PERFORMANCE_PPI *This,
+ OUT FIRMWARE_SEC_PERFORMANCE *Performance
+ )
+{
+ UINT32 Size;
+ UINT32 Count;
+ UINT32 TopOfTemporaryRam;
+ UINT64 Ticker;
+ VOID *TopOfTemporaryRamPpi;
+ EFI_STATUS Status;
+
+ DEBUG ((DEBUG_INFO, "SecGetPerformance\n"));
+
+ Status = (*PeiServices)->LocatePpi (
+ PeiServices,
+ &gTopOfTemporaryRamPpiGuid,
+ 0,
+ NULL,
+ (VOID **) &TopOfTemporaryRamPpi
+ );
+ if (EFI_ERROR (Status)) {
+ return EFI_NOT_FOUND;
+ }
+
+ //
+ // |--------------| <- TopOfTemporaryRam
+ // |Number of BSPs|
+ // |--------------|
+ // | BIST |
+ // |--------------|
+ // | .... |
+ // |--------------|
+ // | TSC[63:32] |
+ // |--------------|
+ // | TSC[31:00] |
+ // |--------------|
+ //
+ TopOfTemporaryRam = (UINT32)(UINTN)TopOfTemporaryRamPpi - sizeof(UINT32);
+ TopOfTemporaryRam -= sizeof(UINT32) * 2;
+ Count = *(UINT32 *) (UINTN) (TopOfTemporaryRam - sizeof (UINT32));
+ Size = Count * sizeof (UINT64);
+
+ Ticker = *(UINT64 *) (UINTN) (TopOfTemporaryRam - sizeof (UINT32) - Size - sizeof (UINT32) * 2);
+ Performance->ResetEnd = GetTimeInNanoSecond (Ticker);
+
+ return EFI_SUCCESS;
+}
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