init. 1AQQW051HEADmaster

1 files changed, 89 insertions, 0 deletions

diff --git a/ReferenceCode/Haswell/CpuInit/Dxe/x64/MpCpu.c b/ReferenceCode/Haswell/CpuInit/Dxe/x64/MpCpu.c
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index 0000000..806dcc0
--- /dev/null
+++ b/ReferenceCode/Haswell/CpuInit/Dxe/x64/MpCpu.c
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+/** @file
+  MP Support functions
+
+@copyright
+  Copyright (c) 2007 - 2012 Intel Corporation. All rights reserved
+  This software and associated documentation (if any) is furnished
+  under a license and may only be used or copied in accordance
+  with the terms of the license. Except as permitted by such
+  license, no part of this software or documentation may be
+  reproduced, stored in a retrieval system, or transmitted in any
+  form or by any means without the express written consent of
+  Intel Corporation.
+
+  This file contains an 'Intel Peripheral Driver' and is
+  licensed for Intel CPUs and chipsets under the terms of your
+  license agreement with Intel or your vendor.  This file may
+  be modified by the user, subject to additional terms of the
+  license agreement
+**/
+#if !defined(EDK_RELEASE_VERSION) || (EDK_RELEASE_VERSION < 0x00020000)
+#include "EdkIIGlueDxe.h"
+#include "MpService.h"
+#include EFI_PROTOCOL_DEFINITION (MpService)
+#endif
+
+extern EFI_CPU_MICROCODE_HEADER **mMicrocodePointerBuffer;
+
+ACPI_CPU_DATA  *mAcpiCpuData;
+MP_SYSTEM_DATA *mMPSystemData;
+
+///
+/// Function declarations
+///
+/**
+  Initializes MP support in the system.
+
+  @retval EFI_SUCCESS          - Multiple processors are initialized successfully.
+  @retval EFI_OUT_OF_RESOURCES - No enough resoruces (such as out of memory).
+**/
+EFI_STATUS
+InitializeMpSupport (
+  VOID
+  )
+{
+  EFI_STATUS           Status;
+  MP_CPU_RESERVED_DATA *MpCpuReservedData;
+
+  ///
+  /// Allocate memory for MP CPU related data below 4G
+  ///
+  Status = AllocateReservedMemoryBelow4G (
+            sizeof (MP_CPU_RESERVED_DATA),
+            (VOID **) &MpCpuReservedData
+            );
+
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+
+  ZeroMem (MpCpuReservedData, sizeof (MP_CPU_RESERVED_DATA));
+
+  mMPSystemData = &(MpCpuReservedData->MPSystemData);
+  mAcpiCpuData  = &(MpCpuReservedData->AcpiCpuData);
+
+  ///
+  /// Copy microcode to allocated memory
+  ///
+  CopyMem (
+    MpCpuReservedData->MicrocodePointerBuffer,
+    mMicrocodePointerBuffer,
+    sizeof (EFI_CPU_MICROCODE_HEADER *) * (NUMBER_OF_MICROCODE_UPDATE + 1)
+    );
+
+  ///
+  /// Initialize ACPI_CPU_DATA data
+  ///
+  mAcpiCpuData->CpuPrivateData          = (EFI_PHYSICAL_ADDRESS) (UINTN) (&(mMPSystemData->S3DataPointer));
+  mAcpiCpuData->S3BootPath              = FALSE;
+  mAcpiCpuData->MicrocodePointerBuffer  = (EFI_PHYSICAL_ADDRESS) MpCpuReservedData->MicrocodePointerBuffer;
+  mAcpiCpuData->GdtrProfile             = (EFI_PHYSICAL_ADDRESS) & (MpCpuReservedData->GdtrProfile);
+  mAcpiCpuData->IdtrProfile             = (EFI_PHYSICAL_ADDRESS) & (MpCpuReservedData->IdtrProfile);
+
+  ///
+  /// Initialize MP services
+  ///
+  InitializeMpServices ();
+
+  return EFI_SUCCESS;
+}