Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Chen Fan <[email protected]>
---
UefiCpuPkg/CpuDxe/CpuMp.c | 56 ++++++++++++++++++++++++++++++++++++++++++++++-
UefiCpuPkg/CpuDxe/CpuMp.h | 34 ++++++++++++++++++++++++++++
2 files changed, 89 insertions(+), 1 deletion(-)
diff --git a/UefiCpuPkg/CpuDxe/CpuMp.c b/UefiCpuPkg/CpuDxe/CpuMp.c
index 60d4777..9338d39 100644
--- a/UefiCpuPkg/CpuDxe/CpuMp.c
+++ b/UefiCpuPkg/CpuDxe/CpuMp.c
@@ -28,7 +28,7 @@ volatile BOOLEAN mAllApsInitFinished = FALSE;
EFI_MP_SERVICES_PROTOCOL mMpServicesTemplate = {
GetNumberOfProcessors,
- NULL, // GetProcessorInfo,
+ GetProcessorInfo,
NULL, // StartupAllAps,
NULL, // StartupThisAP,
NULL, // SwitchBSP,
@@ -117,6 +117,56 @@ GetNumberOfProcessors (
}
/**
+ 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
called from the BSP and APs.
@@ -213,6 +263,10 @@ InitMpSystemData (
CpuData->Info.StatusFlag |= PROCESSOR_AS_BSP_BIT;
CpuData->Info.ProcessorId = GetApicId ();
}
+ CpuData->Info.Location.Package = (UINT32) CpuIndex;
+ CpuData->Info.Location.Core = 0;
+ CpuData->Info.Location.Thread = 0;
+
InitializeSpinLock (&CpuData->CpuDataLock);
}
diff --git a/UefiCpuPkg/CpuDxe/CpuMp.h b/UefiCpuPkg/CpuDxe/CpuMp.h
index a0b009c..4f5765a 100644
--- a/UefiCpuPkg/CpuDxe/CpuMp.h
+++ b/UefiCpuPkg/CpuDxe/CpuMp.h
@@ -150,6 +150,40 @@ GetNumberOfProcessors (
);
/**
+ 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
called from the BSP and APs.
--
1.9.3
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