1 files changed, 89 insertions, 0 deletions
diff --git a/BraswellPlatformPkg/Common/Override/IntelFspWrapperPkg/Library/SecPeiFspPlatformSecLibSample/SecGetPerformance.c b/BraswellPlatformPkg/Common/Override/IntelFspWrapperPkg/Library/SecPeiFspPlatformSecLibSample/SecGetPerformance.c
new file mode 100644
index 0000000000..d6085b73c7
--- /dev/null
+++ b/BraswellPlatformPkg/Common/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;
+}