mirror of https://github.com/acidanthera/audk.git
54 lines
2.2 KiB
C
54 lines
2.2 KiB
C
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/** @file
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Functions prototype of Multiple Processor PPI services.
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Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>
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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
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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 _PEI_MP_SERVICES_H_
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#define _PEI_MP_SERVICES_H_
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#include "CpuMpPei.h"
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/**
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This return the handle number for the calling processor. This service may be
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called from the BSP and APs.
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This service returns the processor handle number for the calling processor.
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The returned value is in the range from 0 to the total number of logical
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processors minus 1. The total number of logical processors can be retrieved
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with EFI_PEI_MP_SERVICES_PPI.GetNumberOfProcessors(). This service may be
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called from the BSP and APs. If ProcessorNumber is NULL, then EFI_INVALID_PARAMETER
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is returned. Otherwise, the current processors handle number is returned in
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ProcessorNumber, and EFI_SUCCESS is returned.
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@param[in] PeiServices An indirect pointer to the PEI Services Table
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published by the PEI Foundation.
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@param[in] This A pointer to the EFI_PEI_MP_SERVICES_PPI instance.
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@param[out] ProcessorNumber The handle number of the AP. The range is from 0 to the
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total number of logical processors minus 1. The total
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number of logical processors can be retrieved by
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EFI_PEI_MP_SERVICES_PPI.GetNumberOfProcessors().
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@retval EFI_SUCCESS The current processor handle number was returned in
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ProcessorNumber.
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@retval EFI_INVALID_PARAMETER ProcessorNumber is NULL.
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**/
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EFI_STATUS
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EFIAPI
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PeiWhoAmI (
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IN CONST EFI_PEI_SERVICES **PeiServices,
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IN EFI_PEI_MP_SERVICES_PPI *This,
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OUT UINTN *ProcessorNumber
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);
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#endif
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