Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jeff Fan <jeff....@intel.com> CC: Feng Tian <feng.t...@intel.com> CC: Jiewen Yao <jiewen....@intel.com> CC: Michael Kinney <michael.d.kin...@intel.com> --- UefiCpuPkg/CpuMpPei/CpuMpPei.h | 1 + UefiCpuPkg/CpuMpPei/CpuMpPei.inf | 2 + UefiCpuPkg/CpuMpPei/PeiMpServices.c | 94 +++++++++++++++++++++++++++++++++++++ UefiCpuPkg/CpuMpPei/PeiMpServices.h | 54 +++++++++++++++++++++ 4 files changed, 151 insertions(+) create mode 100644 UefiCpuPkg/CpuMpPei/PeiMpServices.c create mode 100644 UefiCpuPkg/CpuMpPei/PeiMpServices.h
diff --git a/UefiCpuPkg/CpuMpPei/CpuMpPei.h b/UefiCpuPkg/CpuMpPei/CpuMpPei.h index aa926ab..8e83dc7 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 36126af..faf999a 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 0000000..c411b15 --- /dev/null +++ b/UefiCpuPkg/CpuMpPei/PeiMpServices.c @@ -0,0 +1,94 @@ +/** @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 General purpose services available to every PEIM. + @param[in] This A pointer to the EFI_PEI_MP_SERVICES_PPI instance. + @param[in] ProcessorNumber The handle number of AP that is to become the new + BSP. 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 0000000..5958fd8 --- /dev/null +++ b/UefiCpuPkg/CpuMpPei/PeiMpServices.h @@ -0,0 +1,54 @@ +/** @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 General purpose services available to every PEIM. + @param[in] This A pointer to the EFI_PEI_MP_SERVICES_PPI instance. + @param[in] ProcessorNumber The handle number of AP that is to become the new + BSP. 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 -- 1.9.5.msysgit.0 ------------------------------------------------------------------------------ Don't Limit Your Business. Reach for the Cloud. GigeNET's Cloud Solutions provide you with the tools and support that you need to offload your IT needs and focus on growing your business. Configured For All Businesses. Start Your Cloud Today. https://www.gigenetcloud.com/ _______________________________________________ edk2-devel mailing list edk2-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/edk2-devel
