2009-07-13 02:18:41 +02:00
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/** @file
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When installed, the Framework MP Services Protocol produces a collection of
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services that are needed for MP management, such as initialization and management
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of application processors.
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@par Note:
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This protocol has been deprecated and has been replaced by the MP Services
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Protocol from the UEFI Platform Initialization Specification 1.2, Volume 2:
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Driver Execution Environment Core Interface.
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The MP Services Protocol provides a generalized way of performing following tasks:
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- Retrieving information of multi-processor environment and MP-related status of
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specific processors.
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- Dispatching user-provided function to APs.
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- Maintain MP-related processor status.
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The MP Services Protocol must be produced on any system with more than one logical
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processor.
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The Protocol is available only during boot time.
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MP Services Protocol is hardware-independent. Most of the logic of this protocol
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is architecturally neutral. It abstracts the multi-processor environment and
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status of processors, and provides interfaces to retrieve information, maintain,
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and dispatch.
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MP Services Protocol may be consumed by ACPI module. The ACPI module may use this
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protocol to retrieve data that are needed for an MP platform and report them to OS.
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MP Services Protocol may also be used to program and configure processors, such
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as MTRR synchronization for memory space attributes setting in DXE Services.
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MP Services Protocol may be used by non-CPU DXE drivers to speed up platform boot
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by taking advantage of the processing capabilities of the APs, for example, using
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APs to help test system memory in parallel with other device initialization.
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Diagnostics applications may also use this protocol for multi-processor.
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Copyright (c) 1999 - 2002, 2009, Intel Corporation.<BR>
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All rights reserved. This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at<BR>
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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--*/
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#ifndef _FRAMEWORK_MP_SERVICE_PROTOCOL_H_
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#define _FRAMEWORK_MP_SERVICE_PROTOCOL_H_
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///
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/// Global ID for the FRAMEWORK_EFI_MP_SERVICES_PROTOCOL
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///
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#define FRAMEWORK_EFI_MP_SERVICES_PROTOCOL_GUID \
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{ \
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0xf33261e7, 0x23cb, 0x11d5, {0xbd, 0x5c, 0x0, 0x80, 0xc7, 0x3c, 0x88, 0x81} \
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}
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///
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/// Forward declaration for the EFI_MP_SERVICES_PROTOCOL
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///
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typedef struct _FRAMEWORK_EFI_MP_SERVICES_PROTOCOL FRAMEWORK_EFI_MP_SERVICES_PROTOCOL;
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///
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/// Fixed delivery mode that may be used as the DeliveryMode parameter in SendIpi()
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///
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#define DELIVERY_MODE_FIXED 0x0
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///
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/// Lowest priority delivery mode that may be used as the DeliveryMode parameter in SendIpi()
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///
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#define DELIVERY_MODE_LOWEST_PRIORITY 0x1
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///
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/// SMI delivery mode that may be used as the DeliveryMode parameter in SendIpi()
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///
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#define DELIVERY_MODE_SMI 0x2
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///
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/// Remote read delivery mode that may be used as the DeliveryMode parameter in SendIpi()
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///
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#define DELIVERY_MODE_REMOTE_READ 0x3
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///
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/// NMI delivery mode that may be used as the DeliveryMode parameter in SendIpi()
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///
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#define DELIVERY_MODE_NMI 0x4
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///
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/// INIT delivery mode that may be used as the DeliveryMode parameter in SendIpi()
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///
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#define DELIVERY_MODE_INIT 0x5
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///
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/// Startup IPI delivery mode that may be used as the DeliveryMode parameter in SendIpi()
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///
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#define DELIVERY_MODE_SIPI 0x6
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///
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/// The DeliveryMode parameter in SendIpi() bust be less than this maximum value
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///
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#define DELIVERY_MODE_MAX 0x7
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///
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/// IPF specific value for the state field of the Self Test State Parameter
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///
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#define EFI_MP_HEALTH_FLAGS_STATUS_HEALTHY 0x0
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///
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/// IPF specific value for the state field of the Self Test State Parameter
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///
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#define EFI_MP_HEALTH_FLAGS_STATUS_PERFORMANCE_RESTRICTED 0x1
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///
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/// IPF specific value for the state field of the Self Test State Parameter
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///
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#define EFI_MP_HEALTH_FLAGS_STATUS_FUNCTIONALLY_RESTRICTED 0x2
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typedef union {
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///
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/// Bitfield structure for the IPF Self Test State Parameter
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///
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struct {
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UINT32 Status:2;
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UINT32 Tested:1;
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UINT32 Reserved1:13;
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UINT32 VirtualMemoryUnavailable:1;
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UINT32 Ia32ExecutionUnavailable:1;
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UINT32 FloatingPointUnavailable:1;
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UINT32 MiscFeaturesUnavailable:1;
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UINT32 Reserved2:12;
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} Bits;
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///
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/// IA32 and X64 BIST data of the processor
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///
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UINT32 Uint32;
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} EFI_MP_HEALTH_FLAGS;
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typedef struct {
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///
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/// @par IA32, X64:
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/// BIST (built-in self test) data of the processor.
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///
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/// @par IPF:
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/// Lower 32 bits of self test state parameter. For definition of self test
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/// state parameter, please refer to Intel(R) Itanium(R) Architecture Software
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2009-10-10 05:32:25 +02:00
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/// Developer's Manual, Volume 2: System Architecture.
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2009-07-13 02:18:41 +02:00
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///
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EFI_MP_HEALTH_FLAGS Flags;
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///
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/// @par IA32, X64:
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/// Not used.
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///
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/// @par IPF:
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/// Higher 32 bits of self test state parameter.
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///
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UINT32 TestStatus;
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} EFI_MP_HEALTH;
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typedef enum {
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EfiCpuAP = 0, ///< The CPU is an AP (Application Processor)
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EfiCpuBSP, ///< The CPU is the BSP (Boot-Strap Processor)
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EfiCpuDesignationMaximum
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} EFI_CPU_DESIGNATION;
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typedef struct {
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///
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/// @par IA32, X64:
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/// The lower 8 bits contains local APIC ID, and higher bits are reserved.
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///
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/// @par IPF:
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/// The lower 16 bits contains id/eid as physical address of local SAPIC
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/// unit, and higher bits are reserved.
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///
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UINT32 ApicID;
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///
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/// This field indicates whether the processor is enabled. If the value is
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/// TRUE, then the processor is enabled. Otherwise, it is disabled.
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///
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BOOLEAN Enabled;
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///
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/// This field indicates whether the processor is playing the role of BSP.
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/// If the value is EfiCpuAP, then the processor is AP. If the value is
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/// EfiCpuBSP, then the processor is BSP.
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///
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EFI_CPU_DESIGNATION Designation;
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///
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/// @par IA32, X64:
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/// The Flags field of this EFI_MP_HEALTH data structure holds BIST (built-in
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/// self test) data of the processor. The TestStatus field is not used, and
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/// the value is always zero.
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///
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/// @par IPF:
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/// Bit format of this field is the same as the definition of self-test state
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2009-10-10 10:32:06 +02:00
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/// parameter, in Intel(R) Itanium(R) Architecture Software Developer's Manual,
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2009-07-13 02:18:41 +02:00
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/// Volume 2: System Architecture.
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///
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EFI_MP_HEALTH Health;
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///
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/// Zero-based physical package number that identifies the cartridge of the
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/// processor.
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///
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UINTN PackageNumber;
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///
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/// Zero-based physical core number within package of the processor.
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///
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UINTN NumberOfCores;
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///
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/// Zero-based logical thread number within core of the processor.
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///
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UINTN NumberOfThreads;
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///
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/// This field is reserved.
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///
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UINT64 ProcessorPALCompatibilityFlags;
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///
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/// @par IA32, X64:
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/// This field is not used, and the value is always zero.
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///
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/// @par IPF:
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/// This field is a mask number that is handed off by the PAL about which
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/// processor tests are performed and which are masked.
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///
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UINT64 ProcessorTestMask;
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} EFI_MP_PROC_CONTEXT;
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/**
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This service retrieves general information of multiprocessors in the system.
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This function is used to get the following information:
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- Number of logical processors in system
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- Maximal number of logical processors supported by system
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- Number of enabled logical processors.
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- Rendezvous interrupt number (IPF-specific)
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- Length of the rendezvous procedure.
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@param[in] This Pointer to the FRAMEWORK_EFI_MP_SERVICES_PROTOCOL
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instance.
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@param[out] NumberOfCPUs Pointer to the total number of logical processors
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in the system, including the BSP and disabled
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APs. If NULL, this parameter is ignored.
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@param[out] MaximumNumberOfCPUs Pointer to the maximum number of processors
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supported by the system. If NULL, this
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parameter is ignored.
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@param[out] NumberOfEnabledCPUs Pointer to the number of enabled logical
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processors that exist in system, including
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the BSP. If NULL, this parameter is ignored.
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@param[out] RendezvousIntNumber This parameter is only meaningful for IPF.
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- IA32, X64: The returned value is zero.
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If NULL, this parameter is ignored.
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- IPF: Pointer to the rendezvous interrupt
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number that is used for AP wake-up.
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@param[out] RendezvousProcLength Pointer to the length of rendezvous procedure.
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- IA32, X64: The returned value is 0x1000.
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If NULL, this parameter is ignored.
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- IPF: The returned value is zero.
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@retval EFI_SUCCESS Multiprocessor general information successfully retrieved.
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**/
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typedef
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EFI_STATUS
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2009-07-13 11:28:00 +02:00
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(EFIAPI *EFI_MP_SERVICES_GET_GENERAL_MP_INFO)(
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2009-07-13 02:18:41 +02:00
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IN FRAMEWORK_EFI_MP_SERVICES_PROTOCOL *This,
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OUT UINTN *NumberOfCPUs OPTIONAL,
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OUT UINTN *MaximumNumberOfCPUs OPTIONAL,
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OUT UINTN *NumberOfEnabledCPUs OPTIONAL,
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OUT UINTN *RendezvousIntNumber OPTIONAL,
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OUT UINTN *RendezvousProcLength OPTIONAL
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);
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/**
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This service gets detailed MP-related information of the requested processor.
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This service gets detailed MP-related information of the requested processor
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at the instant this call is made. Note the following:
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- The processor information may change during the course of a boot session.
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- The data of information presented here is entirely MP related.
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Information regarding the number of caches and their sizes, frequency of operation,
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slot numbers is all considered platform-related information and will not be
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presented here.
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@param[in] This Pointer to the FRAMEWORK_EFI_MP_SERVICES_PROTOCOL
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instance.
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@param[in] ProcessorNumber The handle number of the processor. The range
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is from 0 to the total number of logical
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processors minus 1. The total number of
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logical processors can be retrieved by
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GetGeneralMPInfo().
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@param[in,out] BufferLength On input, pointer to the size in bytes of
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ProcessorContextBuffer. On output, if the
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size of ProcessorContextBuffer is not large
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enough, the value pointed by this parameter
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is updated to size in bytes that is needed.
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If the size of ProcessorContextBuffer is
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sufficient, the value is not changed from
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input.
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@param[out] ProcessorContextBuffer Pointer to the buffer where the data of
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requested processor will be deposited.
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The buffer is allocated by caller.
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@retval EFI_SUCCESS Processor information successfully returned.
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@retval EFI_BUFFER_TOO_SMALL The size of ProcessorContextBuffer is too small.
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Value pointed by BufferLength has been updated
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to size in bytes that is needed.
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@retval EFI_INVALID_PARAMETER IA32, X64:BufferLength is NULL.
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@retval EFI_INVALID_PARAMETER IA32, X64:ProcessorContextBuffer is NULL.
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@retval EFI_INVALID_PARAMETER IA32, X64:Processor with the handle specified by
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ProcessorNumber does not exist
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@retval EFI_NOT_FOUND IPF: Processor with the handle specified by
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ProcessorNumber does not exist
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**/
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typedef
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EFI_STATUS
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2009-07-13 11:28:00 +02:00
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(EFIAPI *EFI_MP_SERVICES_GET_PROCESSOR_CONTEXT)(
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2009-07-13 02:18:41 +02:00
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IN FRAMEWORK_EFI_MP_SERVICES_PROTOCOL *This,
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IN UINTN ProcessorNumber,
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IN OUT UINTN *BufferLength,
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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,
|
2009-07-13 11:28:00 +02:00
|
|
|
and the BSP will then check APs?status
|
2009-07-13 02:18:41 +02:00
|
|
|
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
|
2009-10-10 10:25:50 +02:00
|
|
|
BSP will then check the AP's status periodically,
|
2009-07-13 02:18:41 +02:00
|
|
|
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
|
2009-07-13 11:28:00 +02:00
|
|
|
(EFIAPI *EFI_MP_SERVICES_SEND_IPI)(
|
2009-07-13 02:18:41 +02:00
|
|
|
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
|
|
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);
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/**
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This service lets the caller processor get its handle number, with which any
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processor in the system can be uniquely identified. The range is from 0 to the
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total number of logical processors minus 1. The total number of logical
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processors can be retrieved by GetGeneralMPInfo(). This service may be called
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from the BSP and APs.
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@param[in] This Pointer to the FRAMEWORK_EFI_MP_SERVICES_PROTOCOL
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instance.
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@param[out] ProcessorNumber A pointer to the handle number of AP. The range is
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from 0 to the total number of logical processors
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minus 1. The total number of logical processors
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can be retrieved by GetGeneralMPInfo().
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@retval EFI_SUCCESS This function always returns EFI_SUCCESS.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *FRAMEWORK_EFI_MP_SERVICES_WHOAMI)(
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IN FRAMEWORK_EFI_MP_SERVICES_PROTOCOL *This,
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OUT UINTN *ProcessorNumber
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);
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///
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/// Framework MP Services Protocol structure
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///
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typedef struct _FRAMEWORK_EFI_MP_SERVICES_PROTOCOL {
|
2009-07-13 11:28:00 +02:00
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EFI_MP_SERVICES_GET_GENERAL_MP_INFO GetGeneralMPInfo;
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EFI_MP_SERVICES_GET_PROCESSOR_CONTEXT GetProcessorContext;
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2009-07-13 02:18:41 +02:00
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FRAMEWORK_EFI_MP_SERVICES_STARTUP_ALL_APS StartupAllAPs;
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FRAMEWORK_EFI_MP_SERVICES_STARTUP_THIS_AP StartupThisAP;
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FRAMEWORK_EFI_MP_SERVICES_SWITCH_BSP SwitchBSP;
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2009-07-13 11:28:00 +02:00
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EFI_MP_SERVICES_SEND_IPI SendIPI;
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2009-07-13 02:18:41 +02:00
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FRAMEWORK_EFI_MP_SERVICES_ENABLEDISABLEAP EnableDisableAP;
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FRAMEWORK_EFI_MP_SERVICES_WHOAMI WhoAmI;
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};
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extern EFI_GUID gFrameworkEfiMpServiceProtocolGuid;
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#endif
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