diff options
| -rw-r--r-- | UefiCpuPkg/CpuMpPei/CpuMpPei.h | 1 | ||||
| -rw-r--r-- | UefiCpuPkg/CpuMpPei/CpuMpPei.inf | 2 | ||||
| -rw-r--r-- | UefiCpuPkg/CpuMpPei/PeiMpServices.c | 93 | ||||
| -rw-r--r-- | UefiCpuPkg/CpuMpPei/PeiMpServices.h | 53 |
4 files changed, 149 insertions, 0 deletions
diff --git a/UefiCpuPkg/CpuMpPei/CpuMpPei.h b/UefiCpuPkg/CpuMpPei/CpuMpPei.h index aa926abc36..8e83dc717c 100644 --- a/UefiCpuPkg/CpuMpPei/CpuMpPei.h +++ b/UefiCpuPkg/CpuMpPei/CpuMpPei.h @@ -17,6 +17,7 @@ #include <PiPei.h> +#include <Ppi/MpServices.h> #include <Ppi/SecPlatformInformation.h> #include <Ppi/SecPlatformInformation2.h> diff --git a/UefiCpuPkg/CpuMpPei/CpuMpPei.inf b/UefiCpuPkg/CpuMpPei/CpuMpPei.inf index 36126af004..faf999add7 100644 --- a/UefiCpuPkg/CpuMpPei/CpuMpPei.inf +++ b/UefiCpuPkg/CpuMpPei/CpuMpPei.inf @@ -33,6 +33,8 @@ CpuBist.c Microcode.h Microcode.c + PeiMpServices.h + PeiMpServices.c [Sources.IA32] Ia32/MpEqu.inc diff --git a/UefiCpuPkg/CpuMpPei/PeiMpServices.c b/UefiCpuPkg/CpuMpPei/PeiMpServices.c new file mode 100644 index 0000000000..e9d3fa1fe4 --- /dev/null +++ b/UefiCpuPkg/CpuMpPei/PeiMpServices.c @@ -0,0 +1,93 @@ +/** @file + Implementation of Multiple Processor PPI services. + + 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. + +**/ + +#include "PeiMpServices.h" + + + +/** + Find the current Processor number by APIC ID. + + @param PeiCpuMpData Pointer to PEI CPU MP Data + @param ProcessorNumber Return the pocessor number found + + @retval EFI_SUCCESS ProcessorNumber is found and returned. + @retval EFI_NOT_FOUND ProcessorNumber is not found. +**/ +EFI_STATUS +GetProcessorNumber ( + IN PEI_CPU_MP_DATA *PeiCpuMpData, + OUT UINTN *ProcessorNumber + ) +{ + UINTN TotalProcessorNumber; + UINTN Index; + + TotalProcessorNumber = PeiCpuMpData->CpuCount; + for (Index = 0; Index < TotalProcessorNumber; Index ++) { + if (PeiCpuMpData->CpuData[Index].ApicId == GetInitialApicId ()) { + *ProcessorNumber = Index; + return EFI_SUCCESS; + } + } + return EFI_NOT_FOUND; +} + + +/** + This return the handle number for the calling processor. This service may be + called from the BSP and APs. + + This service returns the processor handle number for the calling processor. + The returned value is in the range from 0 to the total number of logical + processors minus 1. The total number of logical processors can be retrieved + with EFI_PEI_MP_SERVICES_PPI.GetNumberOfProcessors(). This service may be + called from the BSP and APs. If ProcessorNumber is NULL, then EFI_INVALID_PARAMETER + is returned. Otherwise, the current processors handle number is returned in + ProcessorNumber, and EFI_SUCCESS is returned. + + @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. +**/ +EFI_STATUS +EFIAPI +PeiWhoAmI ( + IN CONST EFI_PEI_SERVICES **PeiServices, + IN EFI_PEI_MP_SERVICES_PPI *This, + OUT UINTN *ProcessorNumber + ) +{ + PEI_CPU_MP_DATA *PeiCpuMpData; + + PeiCpuMpData = GetMpHobData (); + if (PeiCpuMpData == NULL) { + return EFI_NOT_FOUND; + } + + if (ProcessorNumber == NULL) { + return EFI_INVALID_PARAMETER; + } + + return GetProcessorNumber (PeiCpuMpData, ProcessorNumber); +} + diff --git a/UefiCpuPkg/CpuMpPei/PeiMpServices.h b/UefiCpuPkg/CpuMpPei/PeiMpServices.h new file mode 100644 index 0000000000..884b8d9541 --- /dev/null +++ b/UefiCpuPkg/CpuMpPei/PeiMpServices.h @@ -0,0 +1,53 @@ +/** @file + Functions prototype of Multiple Processor PPI services. + + 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. + +**/ + +#ifndef _PEI_MP_SERVICES_H_ +#define _PEI_MP_SERVICES_H_ + +#include "CpuMpPei.h" + + +/** + This return the handle number for the calling processor. This service may be + called from the BSP and APs. + + This service returns the processor handle number for the calling processor. + The returned value is in the range from 0 to the total number of logical + processors minus 1. The total number of logical processors can be retrieved + with EFI_PEI_MP_SERVICES_PPI.GetNumberOfProcessors(). This service may be + called from the BSP and APs. If ProcessorNumber is NULL, then EFI_INVALID_PARAMETER + is returned. Otherwise, the current processors handle number is returned in + ProcessorNumber, and EFI_SUCCESS is returned. + + @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. +**/ +EFI_STATUS +EFIAPI +PeiWhoAmI ( + IN CONST EFI_PEI_SERVICES **PeiServices, + IN EFI_PEI_MP_SERVICES_PPI *This, + OUT UINTN *ProcessorNumber + ); + +#endif |