Library/DxeExtendedSalLib/ExtendedSalLib.c

/** @file
  The library implements the Extended SAL Library Class for boot service only modules.

  Copyright (c) 2007 - 2012, 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 <PiDxe.h>

#include <Protocol/ExtendedSalBootService.h>
#include <Protocol/ExtendedSalServiceClasses.h>

#include <Library/ExtendedSalLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/DebugLib.h>

/**
  Stores the physical plabel of ESAL entrypoint.

  This assembly function stores the physical plabel of ESAL entrypoint
  where GetEsalEntryPoint() can easily retrieve.

  @param  EntryPoint  Physical address of ESAL entrypoint
  @param  Gp          Physical GP of ESAL entrypoint

  @return r8 = EFI_SAL_SUCCESS

**/
SAL_RETURN_REGS
EFIAPI
SetEsalPhysicalEntryPoint (
  IN  UINT64  EntryPoint,
  IN  UINT64  Gp
  );

/**
  Retrieves plabel of ESAL entrypoint.

  This function retrives plabel of ESAL entrypoint stored by
  SetEsalPhysicalEntryPoint().

  @return r8  = EFI_SAL_SUCCESS
          r9  = Physical Plabel
          r10 = Virtual Plabel
          r11 = PSR

**/
SAL_RETURN_REGS
EFIAPI
GetEsalEntryPoint (
  VOID
  );

EXTENDED_SAL_BOOT_SERVICE_PROTOCOL  *mEsalBootService = NULL;
EFI_PLABEL                          mPlabel;

/**
  Constructor function to get Extended SAL Boot Service Protocol, and initializes
  physical plabel of ESAL entrypoint.

  This function first locates Extended SAL Boot Service Protocol and caches it in global variable.
  Then it initializes the physical plable of ESAL entrypoint, and stores
  it where GetEsalEntryPoint() can easily retrieve.

  @param  ImageHandle   The firmware allocated handle for the EFI image.
  @param  SystemTable   A pointer to the EFI System Table.

  @retval  EFI_SUCCESS  Plable of ESAL entrypoint successfully stored.

**/
EFI_STATUS
EFIAPI
DxeExtendedSalLibConstruct (
  IN EFI_HANDLE           ImageHandle,
  IN EFI_SYSTEM_TABLE     *SystemTable
  )
{
  EFI_PLABEL  *Plabel;
  EFI_STATUS  Status;

  //
  // The protocol contains a function pointer, which is an indirect procedure call.
  // An indirect procedure call goes through a plabel, and pointer to a function is
  // a pointer to a plabel. To implement indirect procedure calls that can work in
  // both physical and virtual mode, two plabels are required (one physical and one
  // virtual). So lets grap the physical PLABEL for the EsalEntryPoint and store it
  // away. We cache it in a module global, so we can register the vitrual version.
  //
  Status = gBS->LocateProtocol (&gEfiExtendedSalBootServiceProtocolGuid, NULL, (VOID **) &mEsalBootService);
  ASSERT_EFI_ERROR (Status);

  Plabel              = (EFI_PLABEL *) (UINTN) mEsalBootService->ExtendedSalProc;
  mPlabel.EntryPoint  = Plabel->EntryPoint;
  mPlabel.GP          = Plabel->GP;
  //
  // Stores the physical plabel of ESAL entrypoint where GetEsalEntryPoint() can easily retrieve.
  //
  SetEsalPhysicalEntryPoint (mPlabel.EntryPoint, mPlabel.GP);

  return EFI_SUCCESS;
}

/**
  Registers function of ESAL class and it's associated global.

  This function registers function of ESAL class, together with its associated global.
  It is worker function for RegisterEsalClass().
  It is only for boot time.

  @param  FunctionId     ID of function to register
  @param  ClassGuidLo    GUID of ESAL class, lower 64-bits
  @param  ClassGuidHi    GUID of ESAL class, upper 64-bits
  @param  Function       Function to register with ClassGuid/FunctionId pair
  @param  ModuleGlobal   Module global for the function.

  @return Status returned by RegisterExtendedSalProc() of Extended SAL Boot Service Protocol

**/
EFI_STATUS
RegisterEsalFunction (
  IN  UINT64                                    FunctionId,
  IN  UINT64                                    ClassGuidLo,
  IN  UINT64                                    ClassGuidHi,
  IN  SAL_INTERNAL_EXTENDED_SAL_PROC            Function,
  IN  VOID                                      *ModuleGlobal
  )
{
  return mEsalBootService->RegisterExtendedSalProc (
                             mEsalBootService,
                             ClassGuidLo,
                             ClassGuidHi,
                             FunctionId,
                             Function,
                             ModuleGlobal
                             );
}

/**
  Registers ESAL Class and it's associated global.

  This function registers one or more Extended SAL services in a given
  class along with the associated global context.
  This function is only available prior to ExitBootServices().

  @param  ClassGuidLo          GUID of function class, lower 64-bits
  @param  ClassGuidHi          GUID of function class, upper 64-bits
  @param  ModuleGlobal         Module global for the class.
  @param  ...                  List of Function/FunctionId pairs, ended by NULL

  @retval EFI_SUCCESS          The Extended SAL services were registered.
  @retval EFI_UNSUPPORTED      This function was called after ExitBootServices().
  @retval EFI_OUT_OF_RESOURCES There are not enough resources available to register one or more of the specified services.
  @retval Other                ClassGuid could not be installed onto a new handle.

**/
EFI_STATUS
EFIAPI
RegisterEsalClass (
  IN  CONST UINT64    ClassGuidLo,
  IN  CONST UINT64    ClassGuidHi,
  IN  VOID            *ModuleGlobal,  OPTIONAL
  ...
  )
{
  VA_LIST                         Args;
  EFI_STATUS                      Status;
  SAL_INTERNAL_EXTENDED_SAL_PROC  Function;
  UINT64                          FunctionId;
  EFI_HANDLE                      NewHandle;
  EFI_GUID                        ClassGuid;

  VA_START (Args, ModuleGlobal);

  //
  // Register all functions of the class to register.
  //
  Status = EFI_SUCCESS;
  while (!EFI_ERROR (Status)) {
    Function = (SAL_INTERNAL_EXTENDED_SAL_PROC) VA_ARG (Args, SAL_INTERNAL_EXTENDED_SAL_PROC);
    //
    // NULL serves as the end mark of function list
    //
    if (Function == NULL) {
      break;
    }

    FunctionId = VA_ARG (Args, UINT64);

    Status = RegisterEsalFunction (FunctionId, ClassGuidLo, ClassGuidHi, Function, ModuleGlobal);
  }

  VA_END (Args);

  if (EFI_ERROR (Status)) {
    return Status;
  }

  NewHandle = NULL;
  *((UINT64 *)(&ClassGuid) + 0) = ClassGuidLo;
  *((UINT64 *)(&ClassGuid) + 1) = ClassGuidHi;
  return gBS->InstallProtocolInterface (
                &NewHandle,
                &ClassGuid,
                EFI_NATIVE_INTERFACE,
                NULL
                );
}

/**
  Calls an Extended SAL Class service that was previously registered with RegisterEsalClass().

  This function gets the entrypoint of Extended SAL, and calls an Extended SAL Class service
  that was previously registered with RegisterEsalClass() through this entrypoint.

  @param  ClassGuidLo     GUID of function, lower 64-bits
  @param  ClassGuidHi     GUID of function, upper 64-bits
  @param  FunctionId      Function in ClassGuid to call
  @param  Arg2            Argument 2 ClassGuid/FunctionId defined
  @param  Arg3            Argument 3 ClassGuid/FunctionId defined
  @param  Arg4            Argument 4 ClassGuid/FunctionId defined
  @param  Arg5            Argument 5 ClassGuid/FunctionId defined
  @param  Arg6            Argument 6 ClassGuid/FunctionId defined
  @param  Arg7            Argument 7 ClassGuid/FunctionId defined
  @param  Arg8            Argument 8 ClassGuid/FunctionId defined

  @retval EFI_SAL_SUCCESS ESAL procedure successfully called.
  @retval EFI_SAL_ERROR   The address of ExtendedSalProc() can not be correctly
                          initialized.
  @retval Other           Status returned from ExtendedSalProc() service of
                          EXTENDED_SAL_BOOT_SERVICE_PROTOCOL.

**/
SAL_RETURN_REGS
EFIAPI
EsalCall (
  IN UINT64  ClassGuidLo,
  IN UINT64  ClassGuidHi,
  IN UINT64  FunctionId,
  IN UINT64  Arg2,
  IN UINT64  Arg3,
  IN UINT64  Arg4,
  IN UINT64  Arg5,
  IN UINT64  Arg6,
  IN UINT64  Arg7,
  IN UINT64  Arg8
  )
{
  SAL_RETURN_REGS       ReturnReg;
  EXTENDED_SAL_PROC     EsalProc;

  //
  // Get the entrypoint of Extended SAL
  //
  ReturnReg = GetEsalEntryPoint ();
  if (*(UINT64 *)ReturnReg.r9 == 0 && *(UINT64 *)(ReturnReg.r9 + 8) == 0) {
    //
    // The ESAL Entry Point could not be initialized
    //
    ReturnReg.Status = EFI_SAL_ERROR;
    return ReturnReg;
  }

  //
  // Test PSR.it which is BIT36
  //
  if ((ReturnReg.r11 & BIT36) != 0) {
    //
    // Virtual mode plabel to entry point
    //
    EsalProc = (EXTENDED_SAL_PROC) ReturnReg.r10;
  } else {
    //
    // Physical mode plabel to entry point
    //
    EsalProc = (EXTENDED_SAL_PROC) ReturnReg.r9;
  }

  return EsalProc (
           ClassGuidLo,
           ClassGuidHi,
           FunctionId,
           Arg2,
           Arg3,
           Arg4,
           Arg5,
           Arg6,
           Arg7,
           Arg8
           );
}

/**
  Wrapper for the EsalStallFunctionId service of Extended SAL Stall Services Class.

  This function is a wrapper for the EsalStallFunctionId service of Extended SAL
  Stall Services Class. See EsalStallFunctionId of Extended SAL Specification.

  @param  Microseconds                  The number of microseconds to delay.

  @retval EFI_SAL_SUCCESS               Call completed without error.
  @retval EFI_SAL_INVALID_ARGUMENT      Invalid argument.
  @retval EFI_SAL_VIRTUAL_ADDRESS_ERROR Virtual address not registered

**/
SAL_RETURN_REGS
EFIAPI
EsalStall (
  IN UINTN  Microseconds
  )
{
  return EsalCall (
           EFI_EXTENDED_SAL_STALL_SERVICES_PROTOCOL_GUID_LO,
           EFI_EXTENDED_SAL_STALL_SERVICES_PROTOCOL_GUID_HI,
           StallFunctionId,
           Microseconds,
           0,
           0,
           0,
           0,
           0,
           0
           );
}

/**
  Wrapper for the EsalSetNewPalEntryFunctionId service of Extended SAL PAL Services Services Class.

  This function is a wrapper for the EsalSetNewPalEntryFunctionId service of Extended SAL
  PAL Services Services Class. See EsalSetNewPalEntryFunctionId of Extended SAL Specification.

  @param  PhysicalAddress                If TRUE, then PalEntryPoint is a physical address.
                                         If FALSE, then PalEntryPoint is a virtual address.
  @param  PalEntryPoint                  The PAL Entry Point being set.

  @retval EFI_SAL_SUCCESS                The PAL Entry Point was set.
  @retval EFI_SAL_VIRTUAL_ADDRESS_ERROR  This function was called in virtual mode before
                                         virtual mappings for the specified Extended SAL
                                         Procedure are available.

**/
SAL_RETURN_REGS
EFIAPI
EsalSetNewPalEntry (
  IN BOOLEAN  PhysicalAddress,
  IN UINT64   PalEntryPoint
  )
{
  return EsalCall (
           EFI_EXTENDED_SAL_PAL_SERVICES_PROTOCOL_GUID_LO,
           EFI_EXTENDED_SAL_PAL_SERVICES_PROTOCOL_GUID_HI,
           SetNewPalEntryFunctionId,
           PhysicalAddress,
           PalEntryPoint,
           0,
           0,
           0,
           0,
           0
           );
}

/**
  Wrapper for the EsalGetNewPalEntryFunctionId service of Extended SAL PAL Services Services Class.

  This function is a wrapper for the EsalGetNewPalEntryFunctionId service of Extended SAL
  PAL Services Services Class. See EsalGetNewPalEntryFunctionId of Extended SAL Specification.

  @param  PhysicalAddress                If TRUE, then PalEntryPoint is a physical address.
                                         If FALSE, then PalEntryPoint is a virtual address.

  @retval EFI_SAL_SUCCESS                The PAL Entry Point was retrieved and returned in
                                         SAL_RETURN_REGS.r9.
  @retval EFI_SAL_VIRTUAL_ADDRESS_ERROR  This function was called in virtual mode before
                                         virtual mappings for the specified Extended SAL
                                         Procedure are available.
  @return r9                             PAL entry point retrieved.

**/
SAL_RETURN_REGS
EFIAPI
EsalGetNewPalEntry (
  IN BOOLEAN  PhysicalAddress
  )
{
  return EsalCall (
           EFI_EXTENDED_SAL_PAL_SERVICES_PROTOCOL_GUID_LO,
           EFI_EXTENDED_SAL_PAL_SERVICES_PROTOCOL_GUID_HI,
           GetNewPalEntryFunctionId,
           PhysicalAddress,
           0,
           0,
           0,
           0,
           0,
           0
           );
}

/**
  Wrapper for the EsalGetStateBufferFunctionId service of Extended SAL MCA Log Services Class.

  This function is a wrapper for the EsalGetStateBufferFunctionId service of Extended SAL
  MCA Log Services Class. See EsalGetStateBufferFunctionId of Extended SAL Specification.

  @param  McaType               See type parameter of SAL Procedure SAL_GET_STATE_INFO.
  @param  McaBuffer             A pointer to the base address of the returned buffer.
                                Copied from SAL_RETURN_REGS.r9.
  @param  BufferSize            A pointer to the size, in bytes, of the returned buffer.
                                Copied from SAL_RETURN_REGS.r10.

  @retval EFI_SAL_SUCCESS       The memory buffer to store error records was returned in r9 and r10.
  @retval EFI_OUT_OF_RESOURCES  A memory buffer for string error records in not available
  @return r9                    Base address of the returned buffer
  @return r10                   Size of the returned buffer in bytes

**/
SAL_RETURN_REGS
EFIAPI
EsalGetStateBuffer (
  IN  UINT64  McaType,
  OUT UINT8   **McaBuffer,
  OUT UINTN   *BufferSize
  )
{
  SAL_RETURN_REGS Regs;

  Regs = EsalCall (
           EFI_EXTENDED_SAL_MCA_LOG_SERVICES_PROTOCOL_GUID_LO,
           EFI_EXTENDED_SAL_MCA_LOG_SERVICES_PROTOCOL_GUID_HI,
           EsalGetStateBufferFunctionId,
           McaType,
           0,
           0,
           0,
           0,
           0,
           0
           );

  *McaBuffer  = (UINT8 *) Regs.r9;
  *BufferSize = Regs.r10;

  return Regs;
}

/**
  Wrapper for the EsalSaveStateBufferFunctionId service of Extended SAL MCA Log Services Class.

  This function is a wrapper for the EsalSaveStateBufferFunctionId service of Extended SAL
  MCA Log Services Class. See EsalSaveStateBufferFunctionId of Extended SAL Specification.

  @param  McaType      See type parameter of SAL Procedure SAL_GET_STATE_INFO.

  @retval EFI_SUCCESS  The memory buffer containing the error record was written to nonvolatile storage.

**/
SAL_RETURN_REGS
EFIAPI
EsalSaveStateBuffer (
  IN  UINT64  McaType
  )
{
  return EsalCall (
           EFI_EXTENDED_SAL_MCA_LOG_SERVICES_PROTOCOL_GUID_LO,
           EFI_EXTENDED_SAL_MCA_LOG_SERVICES_PROTOCOL_GUID_HI,
           EsalSaveStateBufferFunctionId,
           McaType,
           0,
           0,
           0,
           0,
           0,
           0
           );
}

/**
  Wrapper for the EsalGetVectorsFunctionId service of Extended SAL Base Services Class.

  This function is a wrapper for the EsalGetVectorsFunctionId service of Extended SAL
  Base Services Class. See EsalGetVectorsFunctionId of Extended SAL Specification.

  @param  VectorType               The vector type to retrieve.
                                   0 - MCA, 1 - BSP INIT, 2 - BOOT_RENDEZ, 3 - AP INIT.

  @retval EFI_SAL_SUCCESS          Call completed without error.
  @retval EFI_SAL_INVALID_ARGUMENT Invalid argument.
  @retval EFI_SAL_NO_INFORMATION   The requested vector has not been registered
                                   with the SAL Procedure SAL_SET_VECTORS.

**/
SAL_RETURN_REGS
EFIAPI
EsalGetVectors (
  IN  UINT64  VectorType
  )
{
  return EsalCall (
           EFI_EXTENDED_SAL_BASE_SERVICES_PROTOCOL_GUID_LO,
           EFI_EXTENDED_SAL_BASE_SERVICES_PROTOCOL_GUID_HI,
           EsalGetVectorsFunctionId,
           VectorType,
           0,
           0,
           0,
           0,
           0,
           0
           );
}

/**
  Wrapper for the EsalMcGetParamsFunctionId service of Extended SAL Base Services Class.

  This function is a wrapper for the EsalMcGetParamsFunctionId service of Extended SAL
  Base Services Class. See EsalMcGetParamsFunctionId of Extended SAL Specification.

  @param  ParamInfoType            The parameter type to retrieve.
                                   1 - rendezvous interrupt
                                   2 - wake up
                                   3 - Corrected Platform Error Vector.

  @retval EFI_SAL_SUCCESS          Call completed without error.
  @retval EFI_SAL_INVALID_ARGUMENT Invalid argument.
  @retval EFI_SAL_NO_INFORMATION   The requested vector has not been registered
                                   with the SAL Procedure SAL_MC_SET_PARAMS.

**/
SAL_RETURN_REGS
EFIAPI
EsalMcGetParams (
  IN  UINT64  ParamInfoType
  )
{
  return EsalCall (
           EFI_EXTENDED_SAL_BASE_SERVICES_PROTOCOL_GUID_LO,
           EFI_EXTENDED_SAL_BASE_SERVICES_PROTOCOL_GUID_HI,
           EsalMcGetParamsFunctionId,
           ParamInfoType,
           0,
           0,
           0,
           0,
           0,
           0
           );
}

/**
  Wrapper for the EsalMcGetParamsFunctionId service of Extended SAL Base Services Class.

  This function is a wrapper for the EsalMcGetParamsFunctionId service of Extended SAL
  Base Services Class. See EsalMcGetParamsFunctionId of Extended SAL Specification.

  @retval EFI_SAL_SUCCESS          Call completed without error.
  @retval EFI_SAL_NO_INFORMATION   The requested vector has not been registered
                                   with the SAL Procedure SAL_MC_SET_PARAMS.

**/
SAL_RETURN_REGS
EFIAPI
EsalMcGetMcParams (
  VOID
  )
{
  return EsalCall (
           EFI_EXTENDED_SAL_BASE_SERVICES_PROTOCOL_GUID_LO,
           EFI_EXTENDED_SAL_BASE_SERVICES_PROTOCOL_GUID_HI,
           EsalMcGetMcParamsFunctionId,
           0,
           0,
           0,
           0,
           0,
           0,
           0
           );
}

/**
  Wrapper for the EsalGetMcCheckinFlagsFunctionId service of Extended SAL Base Services Class.

  This function is a wrapper for the EsalGetMcCheckinFlagsFunctionId service of Extended SAL
  Base Services Class. See EsalGetMcCheckinFlagsFunctionId of Extended SAL Specification.

  @param  CpuIndex         The index of the CPU of set of enabled CPUs to check.

  @retval EFI_SAL_SUCCESS  The checkin status of the requested CPU was returned.

**/
SAL_RETURN_REGS
EFIAPI
EsalGetMcCheckinFlags (
  IN  UINT64  CpuIndex
  )
{
  return EsalCall (
           EFI_EXTENDED_SAL_BASE_SERVICES_PROTOCOL_GUID_LO,
           EFI_EXTENDED_SAL_BASE_SERVICES_PROTOCOL_GUID_HI,
           EsalGetMcCheckinFlagsFunctionId,
           CpuIndex,
           0,
           0,
           0,
           0,
           0,
           0
           );
}

/**
  Wrapper for the EsalAddCpuDataFunctionId service of Extended SAL MP Services Class.

  This function is a wrapper for the EsalAddCpuDataFunctionId service of Extended SAL
  MP Services Class. See EsalAddCpuDataFunctionId of Extended SAL Specification.

  @param  CpuGlobalId                 The Global ID for the CPU being added.
  @param  Enabled                     The enable flag for the CPU being added.
                                      TRUE means the CPU is enabled.
                                      FALSE means the CPU is disabled.
  @param  PalCompatibility            The PAL Compatibility value for the CPU being added.

  @retval EFI_SAL_SUCCESS             The CPU was added to the database.
  @retval EFI_SAL_NOT_ENOUGH_SCRATCH  There are not enough resource available to add the CPU.

**/
SAL_RETURN_REGS
EFIAPI
EsalAddCpuData (
  IN UINT64   CpuGlobalId,
  IN BOOLEAN  Enabled,
  IN UINT64   PalCompatibility
  )
{
  return EsalCall (
           EFI_EXTENDED_SAL_MP_SERVICES_PROTOCOL_GUID_LO,
           EFI_EXTENDED_SAL_MP_SERVICES_PROTOCOL_GUID_HI,
           AddCpuDataFunctionId,
           CpuGlobalId,
           Enabled,
           PalCompatibility,
           0,
           0,
           0,
           0
           );
}

/**
  Wrapper for the EsalRemoveCpuDataFunctionId service of Extended SAL MP Services Class.

  This function is a wrapper for the EsalRemoveCpuDataFunctionId service of Extended SAL
  MP Services Class. See EsalRemoveCpuDataFunctionId of Extended SAL Specification.

  @param  CpuGlobalId             The Global ID for the CPU being removed.

  @retval EFI_SAL_SUCCESS         The CPU was removed from the database.
  @retval EFI_SAL_NO_INFORMATION  The specified CPU is not in the database.

**/
SAL_RETURN_REGS
EFIAPI
EsalRemoveCpuData (
  IN UINT64  CpuGlobalId
  )
{
  return EsalCall (
           EFI_EXTENDED_SAL_MP_SERVICES_PROTOCOL_GUID_LO,
           EFI_EXTENDED_SAL_MP_SERVICES_PROTOCOL_GUID_HI,
           RemoveCpuDataFunctionId,
           CpuGlobalId,
           0,
           0,
           0,
           0,
           0,
           0
           );
}

/**
  Wrapper for the EsalModifyCpuDataFunctionId service of Extended SAL MP Services Class.

  This function is a wrapper for the EsalModifyCpuDataFunctionId service of Extended SAL
  MP Services Class. See EsalModifyCpuDataFunctionId of Extended SAL Specification.

  @param  CpuGlobalId             The Global ID for the CPU being modified.
  @param  Enabled                 The enable flag for the CPU being modified.
                                  TRUE means the CPU is enabled.
                                  FALSE means the CPU is disabled.
  @param  PalCompatibility        The PAL Compatibility value for the CPU being modified.

  @retval EFI_SAL_SUCCESS         The CPU database was updated.
  @retval EFI_SAL_NO_INFORMATION  The specified CPU is not in the database.

**/
SAL_RETURN_REGS
EFIAPI
EsalModifyCpuData (
  IN UINT64   CpuGlobalId,
  IN BOOLEAN  Enabled,
  IN UINT64   PalCompatibility
  )
{
  return EsalCall (
           EFI_EXTENDED_SAL_MP_SERVICES_PROTOCOL_GUID_LO,
           EFI_EXTENDED_SAL_MP_SERVICES_PROTOCOL_GUID_HI,
           ModifyCpuDataFunctionId,
           CpuGlobalId,
           Enabled,
           PalCompatibility,
           0,
           0,
           0,
           0
           );
}

/**
  Wrapper for the EsalGetCpuDataByIdFunctionId service of Extended SAL MP Services Class.

  This function is a wrapper for the EsalGetCpuDataByIdFunctionId service of Extended SAL
  MP Services Class. See EsalGetCpuDataByIdFunctionId of Extended SAL Specification.

  @param  CpuGlobalId             The Global ID for the CPU being looked up.
  @param  IndexByEnabledCpu       If TRUE, then the index of set of enabled CPUs of database is returned.
                                  If FALSE, then the index of set of all CPUs of database is returned.

  @retval EFI_SAL_SUCCESS         The information on the specified CPU was returned.
  @retval EFI_SAL_NO_INFORMATION  The specified CPU is not in the database.

**/
SAL_RETURN_REGS
EFIAPI
EsalGetCpuDataById (
  IN UINT64   CpuGlobalId,
  IN BOOLEAN  IndexByEnabledCpu
  )
{
  return EsalCall (
           EFI_EXTENDED_SAL_MP_SERVICES_PROTOCOL_GUID_LO,
           EFI_EXTENDED_SAL_MP_SERVICES_PROTOCOL_GUID_HI,
           GetCpuDataByIDFunctionId,
           CpuGlobalId,
           IndexByEnabledCpu,
           0,
           0,
           0,
           0,
           0
           );
}

/**
  Wrapper for the EsalGetCpuDataByIndexFunctionId service of Extended SAL MP Services Class.

  This function is a wrapper for the EsalGetCpuDataByIndexFunctionId service of Extended SAL
  MP Services Class. See EsalGetCpuDataByIndexFunctionId of Extended SAL Specification.

  @param  Index                   The Global ID for the CPU being modified.
  @param  IndexByEnabledCpu       If TRUE, then the index of set of enabled CPUs of database is returned.
                                  If FALSE, then the index of set of all CPUs of database is returned.

  @retval EFI_SAL_SUCCESS         The information on the specified CPU was returned.
  @retval EFI_SAL_NO_INFORMATION  The specified CPU is not in the database.

**/
SAL_RETURN_REGS
EFIAPI
EsalGetCpuDataByIndex (
  IN UINT64   Index,
  IN BOOLEAN  IndexByEnabledCpu
  )
{
  return EsalCall (
           EFI_EXTENDED_SAL_MP_SERVICES_PROTOCOL_GUID_LO,
           EFI_EXTENDED_SAL_MP_SERVICES_PROTOCOL_GUID_HI,
           GetCpuDataByIndexFunctionId,
           Index,
           IndexByEnabledCpu,
           0,
           0,
           0,
           0,
           0
           );
}

/**
  Wrapper for the EsalWhoAmIFunctionId service of Extended SAL MP Services Class.

  This function is a wrapper for the EsalWhoAmIFunctionId service of Extended SAL
  MP Services Class. See EsalWhoAmIFunctionId of Extended SAL Specification.

  @param  IndexByEnabledCpu       If TRUE, then the index of set of enabled CPUs of database is returned.
                                  If FALSE, then the index of set of all CPUs of database is returned.

  @retval EFI_SAL_SUCCESS         The Global ID for the calling CPU was returned.
  @retval EFI_SAL_NO_INFORMATION  The calling CPU is not in the database.

**/
SAL_RETURN_REGS
EFIAPI
EsalWhoAmI (
  IN BOOLEAN  IndexByEnabledCpu
  )
{
  return EsalCall (
           EFI_EXTENDED_SAL_MP_SERVICES_PROTOCOL_GUID_LO,
           EFI_EXTENDED_SAL_MP_SERVICES_PROTOCOL_GUID_HI,
           CurrentProcInfoFunctionId,
           IndexByEnabledCpu,
           0,
           0,
           0,
           0,
           0,
           0
           );
}

/**
  Wrapper for the EsalNumProcessors service of Extended SAL MP Services Class.

  This function is a wrapper for the EsalNumProcessors service of Extended SAL
  MP Services Class. See EsalNumProcessors of Extended SAL Specification.

  @retval EFI_SAL_SUCCESS    The information on the number of CPUs in the platform
                             was returned.

**/
SAL_RETURN_REGS
EFIAPI
EsalNumProcessors (
  VOID
  )
{
  return EsalCall (
           EFI_EXTENDED_SAL_MP_SERVICES_PROTOCOL_GUID_LO,
           EFI_EXTENDED_SAL_MP_SERVICES_PROTOCOL_GUID_HI,
           NumProcessorsFunctionId,
           0,
           0,
           0,
           0,
           0,
           0,
           0
           );
}

/**
  Wrapper for the EsalSetMinStateFnctionId service of Extended SAL MP Services Class.

  This function is a wrapper for the EsalSetMinStateFnctionId service of Extended SAL
  MP Services Class. See EsalSetMinStateFnctionId of Extended SAL Specification.

  @param  CpuGlobalId              The Global ID for the CPU whose MINSTATE pointer is being set.
  @param  MinStatePointer          The physical address of the MINSTATE buffer for the CPU
                                   specified by CpuGlobalId.

  @retval EFI_SAL_SUCCESS          The MINSTATE pointer was set for the specified CPU.
  @retval EFI_SAL_NO_INFORMATION   The specified CPU is not in the database.

**/
SAL_RETURN_REGS
EFIAPI
EsalSetMinState (
  IN UINT64                CpuGlobalId,
  IN EFI_PHYSICAL_ADDRESS  MinStatePointer
  )
{
  return EsalCall (
           EFI_EXTENDED_SAL_MP_SERVICES_PROTOCOL_GUID_LO,
           EFI_EXTENDED_SAL_MP_SERVICES_PROTOCOL_GUID_HI,
           SetMinStateFunctionId,
           CpuGlobalId,
           MinStatePointer,
           0,
           0,
           0,
           0,
           0
           );
}

/**
  Wrapper for the EsalGetMinStateFunctionId service of Extended SAL MP Services Class.

  This function is a wrapper for the EsalGetMinStateFunctionId service of Extended SAL
  MP Services Class. See EsalGetMinStateFunctionId of Extended SAL Specification.

  @param  CpuGlobalId            The Global ID for the CPU whose MINSTATE pointer is being retrieved.

  @retval EFI_SAL_SUCCESS        The MINSTATE pointer for the specified CPU was retrieved.
  @retval EFI_SAL_NO_INFORMATION The specified CPU is not in the database.

**/
SAL_RETURN_REGS
EFIAPI
EsalGetMinState (
  IN UINT64  CpuGlobalId
  )
{
  return EsalCall (
           EFI_EXTENDED_SAL_MP_SERVICES_PROTOCOL_GUID_LO,
           EFI_EXTENDED_SAL_MP_SERVICES_PROTOCOL_GUID_HI,
           GetMinStateFunctionId,
           CpuGlobalId,
           0,
           0,
           0,
           0,
           0,
           0
           );
}

/**
  Wrapper for the EsalMcsGetStateInfoFunctionId service of Extended SAL MCA Services Class.

  This function is a wrapper for the EsalMcsGetStateInfoFunctionId service of Extended SAL
  MCA Services Class. See EsalMcsGetStateInfoFunctionId of Extended SAL Specification.

  @param  CpuGlobalId               The Global ID for the CPU whose MCA state buffer is being retrieved.
  @param  StateBufferPointer        A pointer to the returned MCA state buffer.
  @param  RequiredStateBufferSize   A pointer to the size, in bytes, of the returned MCA state buffer.

  @retval EFI_SUCCESS               MINSTATE successfully got and size calculated.
  @retval EFI_SAL_NO_INFORMATION    Fail to get MINSTATE.

**/
SAL_RETURN_REGS
EFIAPI
EsalMcaGetStateInfo (
  IN  UINT64                CpuGlobalId,
  OUT EFI_PHYSICAL_ADDRESS  *StateBufferPointer,
  OUT UINT64                *RequiredStateBufferSize
  )
{
  SAL_RETURN_REGS  Regs;

  Regs = EsalCall (
           EFI_EXTENDED_SAL_MCA_SERVICES_PROTOCOL_GUID_LO,
           EFI_EXTENDED_SAL_MCA_SERVICES_PROTOCOL_GUID_HI,
           McaGetStateInfoFunctionId,
           CpuGlobalId,
           0,
           0,
           0,
           0,
           0,
           0
           );

  *StateBufferPointer      = (EFI_PHYSICAL_ADDRESS) Regs.r9;
  *RequiredStateBufferSize = (UINT64) Regs.r10;

  return Regs;
}

/**
  Wrapper for the EsalMcaRegisterCpuFunctionId service of Extended SAL MCA Services Class.

  This function is a wrapper for the EsalMcaRegisterCpuFunctionId service of Extended SAL
  MCA Services Class. See EsalMcaRegisterCpuFunctionId of Extended SAL Specification.

  @param  CpuGlobalId              The Global ID for the CPU whose MCA state buffer is being set.
  @param  StateBufferPointer       A pointer to the MCA state buffer.

  @retval EFI_SAL_NO_INFORMATION   Cannot get the processor info with the CpuId
  @retval EFI_SUCCESS              Save the processor's state info successfully

**/
SAL_RETURN_REGS
EFIAPI
EsalMcaRegisterCpu (
  IN UINT64                CpuGlobalId,
  IN EFI_PHYSICAL_ADDRESS  StateBufferPointer
  )
{
  return EsalCall (
           EFI_EXTENDED_SAL_MCA_SERVICES_PROTOCOL_GUID_LO,
           EFI_EXTENDED_SAL_MCA_SERVICES_PROTOCOL_GUID_HI,
           McaRegisterCpuFunctionId,
           CpuGlobalId,
           StateBufferPointer,
           0,
           0,
           0,
           0,
           0
           );
}