UefiCpuPkg: Add CPU Features PEI/DXE drivers

They will consume Register CPU Features library to detect and initialize CPU
features.

CpuFeaturesPei driver is used to initialize CPU features in PEI phase.
CpuFeaturesDxe driver is used to initialize CPU features in DXE phase.

Add PcdCpuFeaturesInitAfterSmmRelocation and PcdCpuFeaturesInitOnS3Resume
that consumed by CpuFeaturesPei and CpuFeaturesDxe.

Cc: Feng Tian <feng.tian@intel.com>
Cc: Michael Kinney <michael.d.kinney@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jeff Fan <jeff.fan@intel.com>
Reviewed-by: Feng Tian <feng.tian@intel.com>

1 files changed, 75 insertions, 0 deletions

diff --git a/UefiCpuPkg/CpuFeatures/CpuFeaturesPei.c b/UefiCpuPkg/CpuFeatures/CpuFeaturesPei.c
new file mode 100644
index 0000000000..6292f5bf87
--- /dev/null
+++ b/UefiCpuPkg/CpuFeatures/CpuFeaturesPei.c
@@ -0,0 +1,75 @@
+/** @file
+  CPU Features PEIM driver to initialize CPU features.
+
+  Copyright (c) 2017, 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 <Library/BaseLib.h>
+#include <Library/DebugLib.h>
+#include <Library/PeiServicesLib.h>
+#include <Library/RegisterCpuFeaturesLib.h>
+
+#include <Guid/CpuFeaturesInitDone.h>
+
+EFI_PEI_PPI_DESCRIPTOR           mPeiCpuFeaturesInitDonePpiDesc = {
+  (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
+  &gEdkiiCpuFeaturesInitDoneGuid,
+  NULL
+};
+
+/**
+  CPU Features driver entry point function.
+
+  It will perform CPU features initialization, except for
+  PcdCpuFeaturesInitOnS3Resume is FALSE on S3 resume.
+
+  @param  FileHandle    Handle of the file being invoked.
+  @param  PeiServices   Describes the list of possible PEI Services.
+
+  @retval EFI_SUCCESS   CPU Features is initialized successfully.
+**/
+EFI_STATUS
+EFIAPI
+CpuFeaturesPeimInitialize (
+  IN       EFI_PEI_FILE_HANDLE  FileHandle,
+  IN CONST EFI_PEI_SERVICES     **PeiServices
+  )
+{
+  EFI_STATUS                 Status;
+  EFI_BOOT_MODE              BootMode;
+
+  Status = PeiServicesGetBootMode (&BootMode);
+  ASSERT_EFI_ERROR (Status);
+
+  if (BootMode == BOOT_ON_S3_RESUME &&
+      !PcdGetBool (PcdCpuFeaturesInitOnS3Resume)) {
+    //
+    // Does nothing when if PcdCpuFeaturesInitOnS3Resume is FLASE
+    // on S3 boot mode
+    //
+    return EFI_SUCCESS;
+  }
+
+  CpuFeaturesDetect ();
+
+  CpuFeaturesInitialize ();
+
+  //
+  // Install CPU Features Init Done PPI
+  //
+  Status = PeiServicesInstallPpi(&mPeiCpuFeaturesInitDonePpiDesc);
+  ASSERT_EFI_ERROR (Status);
+
+  return EFI_SUCCESS;
+}
+