1 files changed, 127 insertions, 0 deletions
diff --git a/src/VBox/Devices/EFI/Firmware/UefiCpuPkg/Library/CpuCacheInfoLib/DxeCpuCacheInfoLib.c b/src/VBox/Devices/EFI/Firmware/UefiCpuPkg/Library/CpuCacheInfoLib/DxeCpuCacheInfoLib.c
new file mode 100644
index 00000000..aa00ddeb
--- /dev/null
+++ b/src/VBox/Devices/EFI/Firmware/UefiCpuPkg/Library/CpuCacheInfoLib/DxeCpuCacheInfoLib.c
@@ -0,0 +1,127 @@
+/** @file
+  Provides cache info for each package, core type, cache level and cache type.
+
+  Copyright (c) 2020 Intel Corporation. All rights reserved.<BR>
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include <PiDxe.h>
+#include <Library/BaseLib.h>
+#include <Library/DebugLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/CpuCacheInfoLib.h>
+#include <InternalCpuCacheInfoLib.h>
+
+/**
+  Get EFI_MP_SERVICES_PROTOCOL pointer.
+
+  @param[out] MpServices    A pointer to the buffer where EFI_MP_SERVICES_PROTOCOL is stored
+
+  @retval EFI_SUCCESS       EFI_MP_SERVICES_PROTOCOL interface is returned
+  @retval EFI_NOT_FOUND     EFI_MP_SERVICES_PROTOCOL interface is not found
+**/
+EFI_STATUS
+CpuCacheInfoGetMpServices (
+  OUT MP_SERVICES           *MpServices
+  )
+{
+  EFI_STATUS                Status;
+
+  Status = gBS->LocateProtocol (&gEfiMpServiceProtocolGuid, NULL, (VOID **)&MpServices->Protocol);
+  ASSERT_EFI_ERROR (Status);
+
+  return Status;
+}
+
+/**
+  Activate all of the logical processors.
+
+  @param[in]  MpServices          MP_SERVICES structure.
+  @param[in]  Procedure           A pointer to the function to be run on enabled logical processors.
+  @param[in]  ProcedureArgument   The parameter passed into Procedure for all enabled logical processors.
+**/
+VOID
+CpuCacheInfoStartupAllCPUs (
+  IN MP_SERVICES            MpServices,
+  IN EFI_AP_PROCEDURE       Procedure,
+  IN VOID                   *ProcedureArgument
+  )
+{
+  EFI_STATUS                Status;
+
+  Status = MpServices.Protocol->StartupAllAPs (MpServices.Protocol, Procedure, FALSE, NULL, 0, ProcedureArgument, NULL);
+  if (Status == EFI_NOT_STARTED) {
+    //
+    // EFI_NOT_STARTED is returned when there is no enabled AP.
+    // Treat this case as EFI_SUCCESS.
+    //
+    Status = EFI_SUCCESS;
+  }
+  ASSERT_EFI_ERROR (Status);
+
+  Procedure (ProcedureArgument);
+}
+
+/**
+  Get detailed information of the requested logical processor.
+
+  @param[in]  MpServices          MP_SERVICES structure.
+  @param[in]  ProcessorNum        The requested logical processor number.
+  @param[out] ProcessorInfo       A pointer to the buffer where the processor information is stored
+**/
+VOID
+CpuCacheInfoGetProcessorInfo (
+  IN MP_SERVICES                MpServices,
+  IN UINTN                      ProcessorNum,
+  OUT EFI_PROCESSOR_INFORMATION *ProcessorInfo
+  )
+{
+  EFI_STATUS                Status;
+
+  Status = MpServices.Protocol->GetProcessorInfo (MpServices.Protocol, ProcessorNum, ProcessorInfo);
+  ASSERT_EFI_ERROR (Status);
+}
+
+/**
+  Get the logical processor number.
+
+  @param[in]  MpServices          MP_SERVICES structure.
+
+  @retval  Return the logical processor number.
+**/
+UINT32
+CpuCacheInfoWhoAmI (
+  IN MP_SERVICES            MpServices
+  )
+{
+  EFI_STATUS                Status;
+  UINTN                     ProcessorNum;
+
+  Status = MpServices.Protocol->WhoAmI (MpServices.Protocol, &ProcessorNum);
+  ASSERT_EFI_ERROR (Status);
+
+  return (UINT32)ProcessorNum;
+}
+
+/**
+  Get the total number of logical processors in the platform.
+
+  @param[in]  MpServices          MP_SERVICES structure.
+
+  @retval  Return the total number of logical processors.
+**/
+UINT32
+CpuCacheInfoGetNumberOfProcessors (
+  IN MP_SERVICES            MpServices
+  )
+{
+  EFI_STATUS                Status;
+  UINTN                     NumberOfProcessor;
+  UINTN                     NumberOfEnabledProcessor;
+
+  Status = MpServices.Protocol->GetNumberOfProcessors (MpServices.Protocol, &NumberOfProcessor, &NumberOfEnabledProcessor);
+  ASSERT_EFI_ERROR (Status);
+
+  return (UINT32)NumberOfProcessor;
+}