2015-04-28 09:24:16 +02:00
|
|
|
/** @file
|
|
|
|
|
This file declares UEFI PI Multi-processor PPI.
|
|
|
|
|
This PPI is installed by some platform or chipset-specific PEIM that abstracts
|
|
|
|
|
handling multiprocessor support.
|
|
|
|
|
|
|
|
|
|
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.
|
|
|
|
|
|
|
|
|
|
@par Revision Reference:
|
|
|
|
|
This PPI is introduced in PI Version 1.4.
|
|
|
|
|
|
|
|
|
|
**/
|
|
|
|
|
|
|
|
|
|
#ifndef __PEI_MP_SERVICES_PPI_H__
|
|
|
|
|
#define __PEI_MP_SERVICES_PPI_H__
|
|
|
|
|
|
|
|
|
|
#include <Protocol/MpService.h>
|
|
|
|
|
|
|
|
|
|
#define EFI_PEI_MP_SERVICES_PPI_GUID \
|
|
|
|
|
{ \
|
|
|
|
|
0xee16160a, 0xe8be, 0x47a6, { 0x82, 0xa, 0xc6, 0x90, 0xd, 0xb0, 0x25, 0xa } \
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
typedef struct _EFI_PEI_MP_SERVICES_PPI EFI_PEI_MP_SERVICES_PPI ;
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
Get the number of CPU's.
|
|
|
|
|
|
|
|
|
|
@param[in] PeiServices An indirect pointer to the PEI Services Table
|
|
|
|
|
published by the PEI Foundation.
|
|
|
|
|
@param[in] This Pointer to this instance of the PPI.
|
|
|
|
|
@param[out] NumberOfProcessors Pointer to the total number of logical processors in
|
|
|
|
|
the system, including the BSP and disabled APs.
|
|
|
|
|
@param[out] NumberOfEnabledProcessors
|
|
|
|
|
Number of processors in the system that are enabled.
|
|
|
|
|
|
|
|
|
|
@retval EFI_SUCCESS The number of logical processors and enabled
|
|
|
|
|
logical processors was retrieved.
|
|
|
|
|
@retval EFI_DEVICE_ERROR The calling processor is an AP.
|
|
|
|
|
@retval EFI_INVALID_PARAMETER NumberOfProcessors is NULL.
|
|
|
|
|
NumberOfEnabledProcessors is NULL.
|
|
|
|
|
**/
|
|
|
|
|
typedef
|
|
|
|
|
EFI_STATUS
|
|
|
|
|
(EFIAPI *EFI_PEI_MP_SERVICES_GET_NUMBER_OF_PROCESSORS) (
|
|
|
|
|
IN CONST EFI_PEI_SERVICES **PeiServices,
|
|
|
|
|
IN EFI_PEI_MP_SERVICES_PPI *This,
|
|
|
|
|
OUT UINTN *NumberOfProcessors,
|
|
|
|
|
OUT UINTN *NumberOfEnabledProcessors
|
|
|
|
|
);
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
Get information on a specific CPU.
|
|
|
|
|
|
|
|
|
|
@param[in] PeiServices An indirect pointer to the PEI Services Table
|
|
|
|
|
published by the PEI Foundation.
|
|
|
|
|
@param[in] This Pointer to this instance of the PPI.
|
|
|
|
|
@param[in] ProcessorNumber Pointer to the total number of logical processors in
|
|
|
|
|
the system, including the BSP and disabled APs.
|
|
|
|
|
@param[out] ProcessorInfoBuffer Number of processors in the system that are enabled.
|
|
|
|
|
|
|
|
|
|
@retval EFI_SUCCESS Processor information was returned.
|
|
|
|
|
@retval EFI_DEVICE_ERROR The calling processor is an AP.
|
|
|
|
|
@retval EFI_INVALID_PARAMETER ProcessorInfoBuffer is NULL.
|
|
|
|
|
@retval EFI_NOT_FOUND The processor with the handle specified by
|
|
|
|
|
ProcessorNumber does not exist in the platform.
|
|
|
|
|
**/
|
|
|
|
|
typedef
|
|
|
|
|
EFI_STATUS
|
|
|
|
|
(EFIAPI *EFI_PEI_MP_SERVICES_GET_PROCESSOR_INFO) (
|
|
|
|
|
IN CONST EFI_PEI_SERVICES **PeiServices,
|
|
|
|
|
IN EFI_PEI_MP_SERVICES_PPI *This,
|
|
|
|
|
IN UINTN ProcessorNumber,
|
|
|
|
|
OUT EFI_PROCESSOR_INFORMATION *ProcessorInfoBuffer
|
|
|
|
|
);
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
Activate all of the application proessors.
|
|
|
|
|
|
|
|
|
|
@param[in] PeiServices An indirect pointer to the PEI Services Table
|
|
|
|
|
published by the PEI Foundation.
|
|
|
|
|
@param[in] This A pointer to the EFI_PEI_MP_SERVICES_PPI instance.
|
|
|
|
|
@param[in] Procedure A pointer to the function to be run on enabled APs of
|
|
|
|
|
the system.
|
|
|
|
|
@param[in] SingleThread If TRUE, then all the enabled APs execute the function
|
|
|
|
|
specified by Procedure one by one, in ascending order
|
|
|
|
|
of processor handle number. If FALSE, then all the
|
|
|
|
|
enabled APs execute the function specified by Procedure
|
|
|
|
|
simultaneously.
|
|
|
|
|
@param[in] TimeoutInMicroSeconds
|
|
|
|
|
Indicates the time limit in microseconds for APs to
|
|
|
|
|
return from Procedure, for blocking mode only. Zero
|
|
|
|
|
means infinity. If the timeout expires before all APs
|
|
|
|
|
return from Procedure, then Procedure on the failed APs
|
|
|
|
|
is terminated. All enabled APs are available for next
|
|
|
|
|
function assigned by EFI_PEI_MP_SERVICES_PPI.StartupAllAPs()
|
|
|
|
|
or EFI_PEI_MP_SERVICES_PPI.StartupThisAP(). If the
|
|
|
|
|
timeout expires in blocking mode, BSP returns
|
|
|
|
|
EFI_TIMEOUT.
|
|
|
|
|
@param[in] ProcedureArgument The parameter passed into Procedure for all APs.
|
|
|
|
|
|
|
|
|
|
@retval EFI_SUCCESS In blocking mode, all APs have finished before the
|
|
|
|
|
timeout expired.
|
|
|
|
|
@retval EFI_DEVICE_ERROR Caller processor is AP.
|
|
|
|
|
@retval EFI_NOT_STARTED No enabled APs exist in the system.
|
|
|
|
|
@retval EFI_NOT_READY Any enabled APs are busy.
|
|
|
|
|
@retval EFI_TIMEOUT In blocking mode, the timeout expired before all
|
|
|
|
|
enabled APs have finished.
|
|
|
|
|
@retval EFI_INVALID_PARAMETER Procedure is NULL.
|
|
|
|
|
**/
|
|
|
|
|
typedef
|
|
|
|
|
EFI_STATUS
|
|
|
|
|
(EFIAPI *EFI_PEI_MP_SERVICES_STARTUP_ALL_APS) (
|
|
|
|
|
IN CONST EFI_PEI_SERVICES **PeiServices,
|
|
|
|
|
IN EFI_PEI_MP_SERVICES_PPI *This,
|
|
|
|
|
IN EFI_AP_PROCEDURE Procedure,
|
|
|
|
|
IN BOOLEAN SingleThread,
|
|
|
|
|
IN UINTN TimeoutInMicroSeconds,
|
|
|
|
|
IN VOID *ProcedureArgument OPTIONAL
|
|
|
|
|
);
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
Activate a specific application processor.
|
|
|
|
|
|
|
|
|
|
@param[in] PeiServices An indirect pointer to the PEI Services Table
|
|
|
|
|
published by the PEI Foundation.
|
|
|
|
|
@param[in] This A pointer to the EFI_PEI_MP_SERVICES_PPI instance.
|
|
|
|
|
@param[in] Procedure A pointer to the function to be run on enabled APs of
|
|
|
|
|
the system.
|
|
|
|
|
@param[in] ProcessorNumber The handle number of the AP. The range is from 0 to the
|
|
|
|
|
total number of logical processors minus 1. The total
|
|
|
|
|
number of logical processors can be retrieved by
|
|
|
|
|
EFI_PEI_MP_SERVICES_PPI.GetNumberOfProcessors().
|
|
|
|
|
@param[in] TimeoutInMicroSeconds
|
|
|
|
|
Indicates the time limit in microseconds for APs to
|
|
|
|
|
return from Procedure, for blocking mode only. Zero
|
|
|
|
|
means infinity. If the timeout expires before all APs
|
|
|
|
|
return from Procedure, then Procedure on the failed APs
|
|
|
|
|
is terminated. All enabled APs are available for next
|
|
|
|
|
function assigned by EFI_PEI_MP_SERVICES_PPI.StartupAllAPs()
|
|
|
|
|
or EFI_PEI_MP_SERVICES_PPI.StartupThisAP(). If the
|
|
|
|
|
timeout expires in blocking mode, BSP returns
|
|
|
|
|
EFI_TIMEOUT.
|
|
|
|
|
@param[in] ProcedureArgument The parameter passed into Procedure for all APs.
|
|
|
|
|
|
|
|
|
|
@retval EFI_SUCCESS In blocking mode, specified AP finished before the
|
|
|
|
|
timeout expires.
|
|
|
|
|
@retval EFI_DEVICE_ERROR The calling processor is an AP.
|
|
|
|
|
@retval EFI_TIMEOUT In blocking mode, the timeout expired before the
|
|
|
|
|
specified AP has finished.
|
|
|
|
|
@retval EFI_NOT_FOUND The processor with the handle specified by
|
|
|
|
|
ProcessorNumber does not exist.
|
|
|
|
|
@retval EFI_INVALID_PARAMETER ProcessorNumber specifies the BSP or disabled AP.
|
|
|
|
|
@retval EFI_INVALID_PARAMETER Procedure is NULL.
|
|
|
|
|
**/
|
|
|
|
|
typedef
|
|
|
|
|
EFI_STATUS
|
|
|
|
|
(EFIAPI *EFI_PEI_MP_SERVICES_STARTUP_THIS_AP) (
|
|
|
|
|
IN CONST EFI_PEI_SERVICES **PeiServices,
|
|
|
|
|
IN EFI_PEI_MP_SERVICES_PPI *This,
|
|
|
|
|
IN EFI_AP_PROCEDURE Procedure,
|
|
|
|
|
IN UINTN ProcessorNumber,
|
|
|
|
|
IN UINTN TimeoutInMicroseconds,
|
|
|
|
|
IN VOID *ProcedureArgument OPTIONAL
|
|
|
|
|
);
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
Switch the boot strap processor.
|
|
|
|
|
|
|
|
|
|
@param[in] PeiServices An indirect pointer to the PEI Services Table
|
|
|
|
|
published by the PEI Foundation.
|
|
|
|
|
@param[in] This A pointer to the EFI_PEI_MP_SERVICES_PPI instance.
|
|
|
|
|
@param[in] ProcessorNumber The handle number of the AP. The range is from 0 to the
|
|
|
|
|
total number of logical processors minus 1. The total
|
|
|
|
|
number of logical processors can be retrieved by
|
|
|
|
|
EFI_PEI_MP_SERVICES_PPI.GetNumberOfProcessors().
|
|
|
|
|
@param[in] EnableOldBSP If TRUE, then the old BSP will be listed as an enabled
|
|
|
|
|
AP. Otherwise, it will be disabled.
|
|
|
|
|
|
|
|
|
|
@retval EFI_SUCCESS BSP successfully switched.
|
|
|
|
|
@retval EFI_UNSUPPORTED Switching the BSP cannot be completed prior to this
|
|
|
|
|
service returning.
|
|
|
|
|
@retval EFI_UNSUPPORTED Switching the BSP is not supported.
|
|
|
|
|
@retval EFI_SUCCESS The calling processor is an AP.
|
|
|
|
|
@retval EFI_NOT_FOUND The processor with the handle specified by
|
|
|
|
|
ProcessorNumber does not exist.
|
|
|
|
|
@retval EFI_INVALID_PARAMETER ProcessorNumber specifies the current BSP or a disabled
|
|
|
|
|
AP.
|
|
|
|
|
@retval EFI_NOT_READY The specified AP is busy.
|
|
|
|
|
**/
|
|
|
|
|
typedef
|
|
|
|
|
EFI_STATUS
|
|
|
|
|
(EFIAPI *EFI_PEI_MP_SERVICES_SWITCH_BSP) (
|
|
|
|
|
IN CONST EFI_PEI_SERVICES **PeiServices,
|
|
|
|
|
IN EFI_PEI_MP_SERVICES_PPI *This,
|
|
|
|
|
IN UINTN ProcessorNumber,
|
|
|
|
|
IN BOOLEAN EnableOldBSP
|
|
|
|
|
);
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
Enable or disable an application processor.
|
|
|
|
|
|
|
|
|
|
@param[in] PeiServices An indirect pointer to the PEI Services Table
|
|
|
|
|
published by the PEI Foundation.
|
|
|
|
|
@param[in] This A pointer to the EFI_PEI_MP_SERVICES_PPI instance.
|
|
|
|
|
@param[in] ProcessorNumber The handle number of the AP. The range is from 0 to the
|
|
|
|
|
total number of logical processors minus 1. The total
|
|
|
|
|
number of logical processors can be retrieved by
|
|
|
|
|
EFI_PEI_MP_SERVICES_PPI.GetNumberOfProcessors().
|
|
|
|
|
@param[in] EnableAP Specifies the new state for the processor for enabled,
|
|
|
|
|
FALSE for disabled.
|
|
|
|
|
@param[in] HealthFlag If not NULL, a pointer to a value that specifies the
|
|
|
|
|
new health status of the AP. This flag corresponds to
|
|
|
|
|
StatusFlag defined in EFI_PEI_MP_SERVICES_PPI.GetProcessorInfo().
|
|
|
|
|
Only the PROCESSOR_HEALTH_STATUS_BIT is used. All other
|
|
|
|
|
bits are ignored. If it is NULL, this parameter is
|
|
|
|
|
ignored.
|
|
|
|
|
|
|
|
|
|
@retval EFI_SUCCESS The specified AP was enabled or disabled successfully.
|
|
|
|
|
@retval EFI_UNSUPPORTED Enabling or disabling an AP cannot be completed prior
|
|
|
|
|
to this service returning.
|
|
|
|
|
@retval EFI_UNSUPPORTED Enabling or disabling an AP is not supported.
|
|
|
|
|
@retval EFI_DEVICE_ERROR The calling processor is an AP.
|
|
|
|
|
@retval EFI_NOT_FOUND Processor with the handle specified by ProcessorNumber
|
|
|
|
|
does not exist.
|
|
|
|
|
@retval EFI_INVALID_PARAMETER ProcessorNumber specifies the BSP.
|
|
|
|
|
**/
|
|
|
|
|
typedef
|
|
|
|
|
EFI_STATUS
|
|
|
|
|
(EFIAPI *EFI_PEI_MP_SERVICES_ENABLEDISABLEAP) (
|
|
|
|
|
IN CONST EFI_PEI_SERVICES **PeiServices,
|
|
|
|
|
IN EFI_PEI_MP_SERVICES_PPI *This,
|
|
|
|
|
IN UINTN ProcessorNumber,
|
|
|
|
|
IN BOOLEAN EnableAP,
|
|
|
|
|
IN UINT32 *HealthFlag OPTIONAL
|
|
|
|
|
);
|
|
|
|
|
|
|
|
|
|
/**
|
2015-07-15 05:15:49 +02:00
|
|
|
Identify the currently executing processor.
|
2015-04-28 09:24:16 +02:00
|
|
|
|
|
|
|
|
@param[in] PeiServices An indirect pointer to the PEI Services Table
|
|
|
|
|
published by the PEI Foundation.
|
|
|
|
|
@param[in] This A pointer to the EFI_PEI_MP_SERVICES_PPI instance.
|
|
|
|
|
@param[out] ProcessorNumber The handle number of the AP. The range is from 0 to the
|
|
|
|
|
total number of logical processors minus 1. The total
|
|
|
|
|
number of logical processors can be retrieved by
|
|
|
|
|
EFI_PEI_MP_SERVICES_PPI.GetNumberOfProcessors().
|
|
|
|
|
|
|
|
|
|
@retval EFI_SUCCESS The current processor handle number was returned in
|
|
|
|
|
ProcessorNumber.
|
|
|
|
|
@retval EFI_INVALID_PARAMETER ProcessorNumber is NULL.
|
|
|
|
|
**/
|
|
|
|
|
typedef
|
|
|
|
|
EFI_STATUS
|
|
|
|
|
(EFIAPI *EFI_PEI_MP_SERVICES_WHOAMI) (
|
|
|
|
|
IN CONST EFI_PEI_SERVICES **PeiServices,
|
|
|
|
|
IN EFI_PEI_MP_SERVICES_PPI *This,
|
|
|
|
|
OUT UINTN *ProcessorNumber
|
|
|
|
|
);
|
|
|
|
|
|
|
|
|
|
///
|
|
|
|
|
/// This PPI is installed by some platform or chipset-specific PEIM that abstracts
|
|
|
|
|
/// handling multiprocessor support.
|
|
|
|
|
///
|
|
|
|
|
struct _EFI_PEI_MP_SERVICES_PPI {
|
|
|
|
|
EFI_PEI_MP_SERVICES_GET_NUMBER_OF_PROCESSORS GetNumberOfProcessors;
|
|
|
|
|
EFI_PEI_MP_SERVICES_GET_PROCESSOR_INFO GetProcessorInfo;
|
|
|
|
|
EFI_PEI_MP_SERVICES_STARTUP_ALL_APS StartupAllAPs;
|
|
|
|
|
EFI_PEI_MP_SERVICES_STARTUP_THIS_AP StartupThisAP;
|
|
|
|
|
EFI_PEI_MP_SERVICES_SWITCH_BSP SwitchBSP;
|
|
|
|
|
EFI_PEI_MP_SERVICES_ENABLEDISABLEAP EnableDisableAP;
|
|
|
|
|
EFI_PEI_MP_SERVICES_WHOAMI WhoAmI;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
extern EFI_GUID gEfiPeiMpServicesPpiGuid;
|
|
|
|
|
|
|
|
|
|
#endif
|
