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UefiCpuPkg/CpuDxe: implement Mp Services:GetProcessorInfo() 

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Chen Fan <chen.fan.fnst@cn.fujitsu.com>
Reviewed-by: Jeff Fan <jeff.fan@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16356 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Chen Fan 2014-11-13 18:26:53 +00:00 committed by jljusten
parent d894d8b704
commit e7938b5a86
2 changed files with 85 additions and 1 deletions
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52
UefiCpuPkg/CpuDxe/CpuMp.c
View File

@ -26,7 +26,7 @@ VOID *mApStackStart = 0;
EFI_MP_SERVICES_PROTOCOL mMpServicesTemplate = { EFI_MP_SERVICES_PROTOCOL mMpServicesTemplate = {
GetNumberOfProcessors, GetNumberOfProcessors,
NULL, // GetProcessorInfo, GetProcessorInfo,
NULL, // StartupAllAPs, NULL, // StartupAllAPs,
NULL, // StartupThisAP, NULL, // StartupThisAP,
NULL, // SwitchBSP, NULL, // SwitchBSP,
@ -114,6 +114,56 @@ GetNumberOfProcessors (
return EFI_SUCCESS; return EFI_SUCCESS;
} }
/**
Gets detailed MP-related information on the requested processor at the
instant this call is made. This service may only be called from the BSP.
This service retrieves detailed MP-related information about any processor
on the platform. Note the following:
- The processor information may change during the course of a boot session.
- The 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 is not provided
by this service.
@param[in] This A pointer to the EFI_MP_SERVICES_PROTOCOL
instance.
@param[in] ProcessorNumber The handle number of processor.
@param[out] ProcessorInfoBuffer A pointer to the buffer where information for
the requested processor is deposited.
@retval EFI_SUCCESS Processor information was returned.
@retval EFI_DEVICE_ERROR The calling processor is an AP.
@retval EFI_INVALID_PARAMETER ProcessorInfoBuffer is NULL.
@retval EFI_NOT_FOUND The processor with the handle specified by
ProcessorNumber does not exist in the platform.
**/
EFI_STATUS
EFIAPI
GetProcessorInfo (
IN EFI_MP_SERVICES_PROTOCOL *This,
IN UINTN ProcessorNumber,
OUT EFI_PROCESSOR_INFORMATION *ProcessorInfoBuffer
)
{
if (ProcessorInfoBuffer == NULL) {
return EFI_INVALID_PARAMETER;
}
if (!IsBSP ()) {
return EFI_DEVICE_ERROR;
}
if (ProcessorNumber >= mMpSystemData.NumberOfProcessors) {
return EFI_NOT_FOUND;
}
CopyMem (ProcessorInfoBuffer, &mMpSystemData.CpuDatas[ProcessorNumber], sizeof (EFI_PROCESSOR_INFORMATION));
return EFI_SUCCESS;
}
/** /**
This return the handle number for the calling processor. This service may be This return the handle number for the calling processor. This service may be
called from the BSP and APs. called from the BSP and APs.

34
UefiCpuPkg/CpuDxe/CpuMp.h
View File

@ -168,6 +168,40 @@ GetNumberOfProcessors (
OUT UINTN *NumberOfEnabledProcessors OUT UINTN *NumberOfEnabledProcessors
); );
/**
Gets detailed MP-related information on the requested processor at the
instant this call is made. This service may only be called from the BSP.
This service retrieves detailed MP-related information about any processor
on the platform. Note the following:
- The processor information may change during the course of a boot session.
- The 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 is not provided
by this service.
@param[in] This A pointer to the EFI_MP_SERVICES_PROTOCOL
instance.
@param[in] ProcessorNumber The handle number of processor.
@param[out] ProcessorInfoBuffer A pointer to the buffer where information for
the requested processor is deposited.
@retval EFI_SUCCESS Processor information was returned.
@retval EFI_DEVICE_ERROR The calling processor is an AP.
@retval EFI_INVALID_PARAMETER ProcessorInfoBuffer is NULL.
@retval EFI_NOT_FOUND The processor with the handle specified by
ProcessorNumber does not exist in the platform.
**/
EFI_STATUS
EFIAPI
GetProcessorInfo (
IN EFI_MP_SERVICES_PROTOCOL *This,
IN UINTN ProcessorNumber,
OUT EFI_PROCESSOR_INFORMATION *ProcessorInfoBuffer
);
/** /**
This return the handle number for the calling processor. This service may be This return the handle number for the calling processor. This service may be
called from the BSP and APs. called from the BSP and APs.