sravan/system76-edk2
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
Files
a19ad64bf02e21f93cb716eec54a412cc3ca6e3b
system76-edk2/IntelFrameworkPkg/Include/Protocol/FrameworkMpService.h
vanjeff 15cc889129 update comments with the right words. 
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9337 6f19259b-4bc3-4df7-8a09-765794883524
2009-10-10 08:32:06 +00:00

661 lines
33 KiB
C
Raw Blame History

/** @file
When installed, the Framework MP Services Protocol produces a collection of
services that are needed for MP management, such as initialization and management
of application processors.
@par Note:
This protocol has been deprecated and has been replaced by the MP Services
Protocol from the UEFI Platform Initialization Specification 1.2, Volume 2:
Driver Execution Environment Core Interface.
The MP Services Protocol provides a generalized way of performing following tasks:
- Retrieving information of multi-processor environment and MP-related status of
specific processors.
- Dispatching user-provided function to APs.
- Maintain MP-related processor status.
The MP Services Protocol must be produced on any system with more than one logical
processor.
The Protocol is available only during boot time.
MP Services Protocol is hardware-independent. Most of the logic of this protocol
is architecturally neutral. It abstracts the multi-processor environment and
status of processors, and provides interfaces to retrieve information, maintain,
and dispatch.
MP Services Protocol may be consumed by ACPI module. The ACPI module may use this
protocol to retrieve data that are needed for an MP platform and report them to OS.
MP Services Protocol may also be used to program and configure processors, such
as MTRR synchronization for memory space attributes setting in DXE Services.
MP Services Protocol may be used by non-CPU DXE drivers to speed up platform boot
by taking advantage of the processing capabilities of the APs, for example, using
APs to help test system memory in parallel with other device initialization.
Diagnostics applications may also use this protocol for multi-processor.
Copyright (c) 1999 - 2002, 2009, Intel Corporation.<BR>
All rights reserved. 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<BR>
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.
--*/
#ifndef _FRAMEWORK_MP_SERVICE_PROTOCOL_H_
#define _FRAMEWORK_MP_SERVICE_PROTOCOL_H_
///
/// Global ID for the FRAMEWORK_EFI_MP_SERVICES_PROTOCOL
///
#define FRAMEWORK_EFI_MP_SERVICES_PROTOCOL_GUID \
{ \
0xf33261e7, 0x23cb, 0x11d5, {0xbd, 0x5c, 0x0, 0x80, 0xc7, 0x3c, 0x88, 0x81} \
}
///
/// Forward declaration for the EFI_MP_SERVICES_PROTOCOL
///
typedef struct _FRAMEWORK_EFI_MP_SERVICES_PROTOCOL FRAMEWORK_EFI_MP_SERVICES_PROTOCOL;
///
/// Fixed delivery mode that may be used as the DeliveryMode parameter in SendIpi()
///
#define DELIVERY_MODE_FIXED 0x0
///
/// Lowest priority delivery mode that may be used as the DeliveryMode parameter in SendIpi()
///
#define DELIVERY_MODE_LOWEST_PRIORITY 0x1
///
/// SMI delivery mode that may be used as the DeliveryMode parameter in SendIpi()
///
#define DELIVERY_MODE_SMI 0x2
///
/// Remote read delivery mode that may be used as the DeliveryMode parameter in SendIpi()
///
#define DELIVERY_MODE_REMOTE_READ 0x3
///
/// NMI delivery mode that may be used as the DeliveryMode parameter in SendIpi()
///
#define DELIVERY_MODE_NMI 0x4
///
/// INIT delivery mode that may be used as the DeliveryMode parameter in SendIpi()
///
#define DELIVERY_MODE_INIT 0x5
///
/// Startup IPI delivery mode that may be used as the DeliveryMode parameter in SendIpi()
///
#define DELIVERY_MODE_SIPI 0x6
///
/// The DeliveryMode parameter in SendIpi() bust be less than this maximum value
///
#define DELIVERY_MODE_MAX 0x7
///
/// IPF specific value for the state field of the Self Test State Parameter
///
#define EFI_MP_HEALTH_FLAGS_STATUS_HEALTHY 0x0
///
/// IPF specific value for the state field of the Self Test State Parameter
///
#define EFI_MP_HEALTH_FLAGS_STATUS_PERFORMANCE_RESTRICTED 0x1
///
/// IPF specific value for the state field of the Self Test State Parameter
///
#define EFI_MP_HEALTH_FLAGS_STATUS_FUNCTIONALLY_RESTRICTED 0x2
typedef union {
///
/// Bitfield structure for the IPF Self Test State Parameter
///
struct {
UINT32 Status:2;
UINT32 Tested:1;
UINT32 Reserved1:13;
UINT32 VirtualMemoryUnavailable:1;
UINT32 Ia32ExecutionUnavailable:1;
UINT32 FloatingPointUnavailable:1;
UINT32 MiscFeaturesUnavailable:1;
UINT32 Reserved2:12;
} Bits;
///
/// IA32 and X64 BIST data of the processor
///
UINT32 Uint32;
} EFI_MP_HEALTH_FLAGS;
typedef struct {
///
/// @par IA32, X64:
/// BIST (built-in self test) data of the processor.
///
/// @par IPF:
/// Lower 32 bits of self test state parameter. For definition of self test
/// state parameter, please refer to Intel(R) Itanium(R) Architecture Software
/// Developer's Manual, Volume 2: System Architecture.
///
EFI_MP_HEALTH_FLAGS Flags;
///
/// @par IA32, X64:
/// Not used.
///
/// @par IPF:
/// Higher 32 bits of self test state parameter.
///
UINT32 TestStatus;
} EFI_MP_HEALTH;
typedef enum {
EfiCpuAP = 0, ///< The CPU is an AP (Application Processor)
EfiCpuBSP, ///< The CPU is the BSP (Boot-Strap Processor)
EfiCpuDesignationMaximum
} EFI_CPU_DESIGNATION;
typedef struct {
///
/// @par IA32, X64:
/// The lower 8 bits contains local APIC ID, and higher bits are reserved.
///
/// @par IPF:
/// The lower 16 bits contains id/eid as physical address of local SAPIC
/// unit, and higher bits are reserved.
///
UINT32 ApicID;
///
/// This field indicates whether the processor is enabled. If the value is
/// TRUE, then the processor is enabled. Otherwise, it is disabled.
///
BOOLEAN Enabled;
///
/// This field indicates whether the processor is playing the role of BSP.
/// If the value is EfiCpuAP, then the processor is AP. If the value is
/// EfiCpuBSP, then the processor is BSP.
///
EFI_CPU_DESIGNATION Designation;
///
/// @par IA32, X64:
/// The Flags field of this EFI_MP_HEALTH data structure holds BIST (built-in
/// self test) data of the processor. The TestStatus field is not used, and
/// the value is always zero.
///
/// @par IPF:
/// Bit format of this field is the same as the definition of self-test state
/// parameter, in Intel(R) Itanium(R) Architecture Software Developer's Manual,
/// Volume 2: System Architecture.
///
EFI_MP_HEALTH Health;
///
/// Zero-based physical package number that identifies the cartridge of the
/// processor.
///
UINTN PackageNumber;
///
/// Zero-based physical core number within package of the processor.
///
UINTN NumberOfCores;
///
/// Zero-based logical thread number within core of the processor.
///
UINTN NumberOfThreads;
///
/// This field is reserved.
///
UINT64 ProcessorPALCompatibilityFlags;
///
/// @par IA32, X64:
/// This field is not used, and the value is always zero.
///
/// @par IPF:
/// This field is a mask number that is handed off by the PAL about which
/// processor tests are performed and which are masked.
///
UINT64 ProcessorTestMask;
} EFI_MP_PROC_CONTEXT;
/**
This service retrieves general information of multiprocessors in the system.
This function is used to get the following information:
- Number of logical processors in system
- Maximal number of logical processors supported by system
- Number of enabled logical processors.
- Rendezvous interrupt number (IPF-specific)
- Length of the rendezvous procedure.
@param[in] This Pointer to the FRAMEWORK_EFI_MP_SERVICES_PROTOCOL
instance.
@param[out] NumberOfCPUs Pointer to the total number of logical processors
in the system, including the BSP and disabled
APs. If NULL, this parameter is ignored.
@param[out] MaximumNumberOfCPUs Pointer to the maximum number of processors
supported by the system. If NULL, this
parameter is ignored.
@param[out] NumberOfEnabledCPUs Pointer to the number of enabled logical
processors that exist in system, including
the BSP. If NULL, this parameter is ignored.
@param[out] RendezvousIntNumber This parameter is only meaningful for IPF.
- IA32, X64: The returned value is zero.
If NULL, this parameter is ignored.
- IPF: Pointer to the rendezvous interrupt
number that is used for AP wake-up.
@param[out] RendezvousProcLength Pointer to the length of rendezvous procedure.
- IA32, X64: The returned value is 0x1000.
If NULL, this parameter is ignored.
- IPF: The returned value is zero.
@retval EFI_SUCCESS Multiprocessor general information successfully retrieved.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_MP_SERVICES_GET_GENERAL_MP_INFO)(
IN FRAMEWORK_EFI_MP_SERVICES_PROTOCOL *This,
OUT UINTN *NumberOfCPUs OPTIONAL,
OUT UINTN *MaximumNumberOfCPUs OPTIONAL,
OUT UINTN *NumberOfEnabledCPUs OPTIONAL,
OUT UINTN *RendezvousIntNumber OPTIONAL,
OUT UINTN *RendezvousProcLength OPTIONAL
);
/**
This service gets detailed MP-related information of the requested processor.
This service gets detailed MP-related information of the requested processor
at the instant this call is made. Note the following:
- The processor information may change during the course of a boot session.
- The data of information presented here is entirely MP related.
Information regarding the number of caches and their sizes, frequency of operation,
slot numbers is all considered platform-related information and will not be
presented here.
@param[in] This Pointer to the FRAMEWORK_EFI_MP_SERVICES_PROTOCOL
instance.
@param[in] ProcessorNumber The handle number of the processor. The range
is from 0 to the total number of logical
processors minus 1. The total number of
logical processors can be retrieved by
GetGeneralMPInfo().
@param[in,out] BufferLength On input, pointer to the size in bytes of
ProcessorContextBuffer. On output, if the
size of ProcessorContextBuffer is not large
enough, the value pointed by this parameter
is updated to size in bytes that is needed.
If the size of ProcessorContextBuffer is
sufficient, the value is not changed from
input.
@param[out] ProcessorContextBuffer Pointer to the buffer where the data of
requested processor will be deposited.
The buffer is allocated by caller.
@retval EFI_SUCCESS Processor information successfully returned.
@retval EFI_BUFFER_TOO_SMALL The size of ProcessorContextBuffer is too small.
Value pointed by BufferLength has been updated
to size in bytes that is needed.
@retval EFI_INVALID_PARAMETER IA32, X64:BufferLength is NULL.
@retval EFI_INVALID_PARAMETER IA32, X64:ProcessorContextBuffer is NULL.
@retval EFI_INVALID_PARAMETER IA32, X64:Processor with the handle specified by
ProcessorNumber does not exist
@retval EFI_NOT_FOUND IPF: Processor with the handle specified by
ProcessorNumber does not exist
**/
typedef
EFI_STATUS
(EFIAPI *EFI_MP_SERVICES_GET_PROCESSOR_CONTEXT)(
IN FRAMEWORK_EFI_MP_SERVICES_PROTOCOL *This,
IN UINTN ProcessorNumber,
IN OUT UINTN *BufferLength,
OUT EFI_MP_PROC_CONTEXT *ProcessorContextBuffer
);
/**
This function is used to dispatch all enabled APs to the function specified
by Procedure. APs can run either simultaneously or one by one. The caller can
also configure the BSP to either wait for APs or just proceed with the next
task. It is the responsibility of the caller of the StartupAllAPs() to make
sure that the nature of the code that will be run on the BSP and the dispatched
APs is well controlled. The MP Services Protocol does not guarantee that the
function that either processor is executing is MP-safe. Hence, the tasks that
can be run in parallel are limited to certain independent tasks and well-
controlled exclusive code. EFI services and protocols may not be called by APs
unless otherwise specified.
@param[in] This Pointer to the FRAMEWORK_EFI_MP_SERVICES_PROTOCOL
instance.
@param[in] Procedure A pointer to the function to be run on enabled
APs of the system.
@param[in] SingleThread Flag that requests APs to execute one at a
time or simultaneously.
- IA32, X64:
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.
- IPF:
If TRUE, then all the enabled APs execute
the function specified by Procedure simultaneously.
If FALSE, then all the enabled APs execute the
function specified by Procedure one by one, in
ascending order of processor handle number. The
time interval of AP dispatching is determined
by WaitEvent and TimeoutInMicrosecs.
@param[in] WaitEvent Event to signal when APs have finished.
- IA32, X64:
If not NULL, when all APs finish after timeout
expires, the event will be signaled. If NULL,
the parameter is ignored.
- IPF:
If SingleThread is TRUE, this parameter
is ignored. If SingleThread is FALSE (i.e.
dispatch APs one by one), this parameter
determines whether the BSP waits after each
AP is dispatched. If it is NULL, the BSP
does not wait after each AP is dispatched.
If it is not NULL, the BSP waits after each
AP is dispatched, and the time interval is
determined by TimeoutInMicrosecs. Type
EFI_EVENT is defined in CreateEvent() in
the Unified Extensible Firmware Interface
Specification.
@param[in] TimeoutInMicrosecsond Time to wait for APs to finish.
- IA32, X64:
If the value is zero, it means no timeout
limit. The BSP waits until all APs finish.
If the value is not zero, the BSP waits
until all APs finish or timeout expires.
If timeout expires, EFI_TIMEOUT is returned,
and the BSP will then check APs?status
periodically, with time interval of 16
microseconds.
- IPF:
If SingleThread is TRUE and FailedCPUList
is NULL, this parameter is ignored. If
SingleThread is TRUE and FailedCPUList is
not NULL, this parameter determines whether
the BSP waits until all APs finish their
procedure. If it is zero, the BSP does not
wait for APs. If it is non-zero, it waits
until all APs finish. If SingleThread is
FALSE and WaitEvent is NULL, this parameter
is ignored. If SingleThread is FALSE and
WaitEvent is not NULL, the BSP waits after
each AP is dispatched and this value
determines time interval. If the value is
zero, the length of time interval is 10ms.
If the value is non-zero, the BSP waits
until dispatched AP finishes and then
dispatch the next.
@param[in] ProcedureArgument Pointer to the optional parameter of the
function specified by Procedure.
@param[out] FailedCPUList List of APs that did not finish.
- IA32, X64:
If not NULL, it records handle numbers of
all logical processors that fail to accept
caller-provided function (busy or disabled).
If NULL, this parameter is ignored.
- IPF:
If not NULL, it records status of all
logical processors, with processor handle
number as index. If a logical processor
fails to accept caller-provided function
because it is busy, the status is EFI_NOT_READY.
If it fails to accept function due to other
reasons, the status is EFI_NOT_AVAILABLE_YET.
If timeout expires, the status is EFI_TIMEOUT.
Otherwise, the value is EFI_SUCCESS. If NULL,
this parameter is ignored.
@retval EFI_SUCCESS IA32, X64: All dispatched APs have finished
before the timeout expires.
@retval EFI_SUCCESS IA32, X64: Only 1 logical processor exists
in system.
@retval EFI_INVALID_PARAMETER IA32, X64: Procedure is NULL.
@retval EFI_TIMEOUT IA32, X64: The timeout expires before all
dispatched APs have finished.
@retval EFI_SUCCESS IPF: This function always returns EFI_SUCCESS.
**/
typedef
EFI_STATUS
(EFIAPI *FRAMEWORK_EFI_MP_SERVICES_STARTUP_ALL_APS)(
IN FRAMEWORK_EFI_MP_SERVICES_PROTOCOL *This,
IN FRAMEWORK_EFI_AP_PROCEDURE Procedure,
IN BOOLEAN SingleThread,
IN EFI_EVENT WaitEvent OPTIONAL,
IN UINTN TimeoutInMicroSecs,
IN VOID *ProcArguments OPTIONAL,
OUT UINTN *FailedCPUList OPTIONAL
);
/**
This function is used to dispatch one enabled AP to the function provided by
the caller. The caller can request the BSP to either wait for the AP or just
proceed with the next task.
@param[in] This Pointer to the FRAMEWORK_EFI_MP_SERVICES_PROTOCOL
instance.
@param[in] Procedure A pointer to the function to be run on the
designated AP.
@param[in] ProcessorNumber The handle number of 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 GetGeneralMPInfo().
@param[in] WaitEvent Event to signal when APs have finished.
- IA32, X64:
If not NULL, when the AP finishes after timeout
expires, the event will be signaled. If NULL,
the parameter is ignored.
- IPF:
This parameter determines whether the BSP
waits after the AP is dispatched. If it is
NULL, the BSP does not wait after the AP
is dispatched. If it is not NULL, the BSP
waits after the AP is dispatched, and the
time interval is determined by TimeoutInMicrosecs.
Type EFI_EVENT is defined in CreateEvent()
in the Unified Extensible Firmware Interface
Specification.
@param[in] TimeoutInMicrosecsond Time to wait for APs to finish.
- IA32, X64:
If the value is zero, it means no timeout
limit. The BSP waits until the AP finishes.
If the value is not zero, the BSP waits until
the AP finishes or timeout expires. If timeout
expires, EFI_TIMEOUT is returned, and the
BSP will then check the AP's status periodically,
with time interval of 16 microseconds.
- IPF:
If WaitEvent is NULL, this parameter is ignored.
If WaitEvent is not NULL, the BSP waits after
the AP is dispatched and this value determines
time interval. If the value is zero, the length
of time interval is 10ms. If the value is
non-zero, the BSP waits until the AP finishes.
@param[in] ProcedureArgument Pointer to the optional parameter of the
function specified by Procedure.
@retval EFI_SUCCESS Specified AP has finished before the timeout
expires.
@retval EFI_TIMEOUT The timeout expires before specified AP has
finished.
@retval EFI_INVALID_PARAMETER IA32, X64: Processor with the handle specified
by ProcessorNumber does not exist.
@retval EFI_INVALID_PARAMETER IA32, X64: Specified AP is busy or disabled.
@retval EFI_INVALID_PARAMETER IA32, X64: Procedure is NULL.
@retval EFI_INVALID_PARAMETER IA32, X64: ProcessorNumber specifies the BSP
@retval EFI_NOT_READY IPF: Specified AP is busy
@retval EFI_NOT_AVAILABLE_YET IPF: ProcessorNumber specifies the BSP
@retval EFI_NOT_AVAILABLE_YET IPF: Specified AP is disabled.
@retval EFI_NOT_AVAILABLE_YET IPF: Specified AP is unhealthy or untested.
**/
typedef
EFI_STATUS
(EFIAPI *FRAMEWORK_EFI_MP_SERVICES_STARTUP_THIS_AP)(
IN FRAMEWORK_EFI_MP_SERVICES_PROTOCOL *This,
IN FRAMEWORK_EFI_AP_PROCEDURE Procedure,
IN UINTN ProcessorNumber,
IN EFI_EVENT WaitEvent OPTIONAL,
IN UINTN TimeoutInMicroSecs,
IN OUT VOID *ProcArguments OPTIONAL
);
/**
This service switches the requested AP to be the BSP from that point onward.
The new BSP can take over the execution of the old BSP and continue seamlessly
from where the old one left off. This call can only be performed by the
current BSP.
@param[in] This Pointer to the FRAMEWORK_EFI_MP_SERVICES_PROTOCOL
instance.
@param[in] ProcessorNumber The handle number of 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 GetGeneralMPInfo().
@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_INVALID_PARAMETER Processor with the handle specified by
ProcessorNumber does not exist.
@retval EFI_INVALID_PARAMETER ProcessorNumber specifies the BSP.
@retval EFI_NOT_READY IA32, X64: Specified AP is busy or disabled.
@retval EFI_INVALID_PARAMETER IPF: Specified AP is disabled.
@retval EFI_INVALID_PARAMETER IPF: Specified AP is unhealthy or untested.
@retval EFI_NOT_READY IPF: Specified AP is busy.
**/
typedef
EFI_STATUS
(EFIAPI *FRAMEWORK_EFI_MP_SERVICES_SWITCH_BSP)(
IN FRAMEWORK_EFI_MP_SERVICES_PROTOCOL *This,
IN UINTN ProcessorNumber,
IN BOOLEAN EnableOldBSP
);
/**
This service sends an IPI to a specified AP. Caller can specify vector number
and delivery mode of the interrupt.
@param[in] This Pointer to the FRAMEWORK_EFI_MP_SERVICES_PROTOCOL
instance.
@param[in] ProcessorNumber The handle number of 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 GetGeneralMPInfo().
@param[in] VectorNumber Vector number of the interrupt.
@param[in] DeliveryMode Delivery mode of the interrupt.
@retval EFI_SUCCESS IPI is successfully sent.
@retval EFI_INVALID_PARAMETER ProcessorNumber specifies the BSP.
@retval EFI_INVALID_PARAMETER IA32, X64: Processor with the handle specified
by ProcessorNumber does not exist.
@retval EFI_INVALID_PARAMETER IA32, X64: VectorNumber is greater than 255.
@retval EFI_INVALID_PARAMETER IA32, X64: DeliveryMode is greater than or equal
to DELIVERY_MODE_MAX.
@retval EFI_NOT_READY IA32, X64: IPI is not accepted by the target
processor within 10 microseconds.
@retval EFI_INVALID_PARAMETER IPF: Specified AP is disabled.
@retval EFI_INVALID_PARAMETER IPF: Specified AP is unhealthy or untested.
@retval EFI_NOT_READY IPF: Specified AP is busy.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_MP_SERVICES_SEND_IPI)(
IN FRAMEWORK_EFI_MP_SERVICES_PROTOCOL *This,
IN UINTN ProcessorNumber,
IN UINTN VectorNumber,
IN UINTN DeliveryMode
);
/**
This service lets the caller enable or disable an AP. The caller can optionally
specify the health status of the AP by Health. It is usually used to update the
health status of the processor after some processor test.
@param[in] This Pointer to the FRAMEWORK_EFI_MP_SERVICES_PROTOCOL
instance.
@param[in] ProcessorNumber The handle number of 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 GetGeneralMPInfo().
@param[in] NewAPState Indicates whether the new, desired state of the
AP is enabled or disabled. TRUE for enabling,
FALSE otherwise.
@param[in] HealthState If not NULL, it points to the value that specifies
the new health status of the AP. If it is NULL,
this parameter is ignored.
@retval EFI_SUCCESS AP successfully enabled or disabled.
@retval EFI_INVALID_PARAMETER ProcessorNumber specifies the BSP.
@retval EFI_INVALID_PARAMETER IA32, X64: Processor with the handle specified
by ProcessorNumber does not exist.
@retval EFI_INVALID_PARAMETER IPF: If an unhealthy or untested AP is to be
enabled.
**/
typedef
EFI_STATUS
(EFIAPI *FRAMEWORK_EFI_MP_SERVICES_ENABLEDISABLEAP)(
IN FRAMEWORK_EFI_MP_SERVICES_PROTOCOL *This,
IN UINTN ProcessorNumber,
IN BOOLEAN NewAPState,
IN EFI_MP_HEALTH *HealthState OPTIONAL
);
/**
This service lets the caller processor get its handle number, with which any
processor in the system can be uniquely identified. The range is from 0 to the
total number of logical processors minus 1. The total number of logical
processors can be retrieved by GetGeneralMPInfo(). This service may be called
from the BSP and APs.
@param[in] This Pointer to the FRAMEWORK_EFI_MP_SERVICES_PROTOCOL
instance.
@param[out] ProcessorNumber A pointer to the handle number of 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 GetGeneralMPInfo().
@retval EFI_SUCCESS This function always returns EFI_SUCCESS.
**/
typedef
EFI_STATUS
(EFIAPI *FRAMEWORK_EFI_MP_SERVICES_WHOAMI)(
IN FRAMEWORK_EFI_MP_SERVICES_PROTOCOL *This,
OUT UINTN *ProcessorNumber
);
///
/// Framework MP Services Protocol structure
///
typedef struct _FRAMEWORK_EFI_MP_SERVICES_PROTOCOL {
EFI_MP_SERVICES_GET_GENERAL_MP_INFO GetGeneralMPInfo;
EFI_MP_SERVICES_GET_PROCESSOR_CONTEXT GetProcessorContext;
FRAMEWORK_EFI_MP_SERVICES_STARTUP_ALL_APS StartupAllAPs;
FRAMEWORK_EFI_MP_SERVICES_STARTUP_THIS_AP StartupThisAP;
FRAMEWORK_EFI_MP_SERVICES_SWITCH_BSP SwitchBSP;
EFI_MP_SERVICES_SEND_IPI SendIPI;
FRAMEWORK_EFI_MP_SERVICES_ENABLEDISABLEAP EnableDisableAP;
FRAMEWORK_EFI_MP_SERVICES_WHOAMI WhoAmI;
};
extern EFI_GUID gFrameworkEfiMpServiceProtocolGuid;
#endif
Reference in New Issue View Git Blame Copy Permalink