diff options
| -rw-r--r-- | UefiCpuPkg/Library/MpInitLib/DxeMpLib.c | 42 | ||||
| -rw-r--r-- | UefiCpuPkg/Library/MpInitLib/MpLib.c | 30 | ||||
| -rw-r--r-- | UefiCpuPkg/Library/MpInitLib/MpLib.h | 48 | ||||
| -rw-r--r-- | UefiCpuPkg/Library/MpInitLib/PeiMpLib.c | 54 |
4 files changed, 174 insertions, 0 deletions
diff --git a/UefiCpuPkg/Library/MpInitLib/DxeMpLib.c b/UefiCpuPkg/Library/MpInitLib/DxeMpLib.c index 46a48a4166..e294612f14 100644 --- a/UefiCpuPkg/Library/MpInitLib/DxeMpLib.c +++ b/UefiCpuPkg/Library/MpInitLib/DxeMpLib.c @@ -13,6 +13,48 @@ **/
#include "MpLib.h"
+CPU_MP_DATA *mCpuMpData = NULL;
+
+/**
+ Get the pointer to CPU MP Data structure.
+
+ @return The pointer to CPU MP Data structure.
+**/
+CPU_MP_DATA *
+GetCpuMpData (
+ VOID
+ )
+{
+ ASSERT (mCpuMpData != NULL);
+ return mCpuMpData;
+}
+
+/**
+ Save the pointer to CPU MP Data structure.
+
+ @param[in] CpuMpData The pointer to CPU MP Data structure will be saved.
+**/
+VOID
+SaveCpuMpData (
+ IN CPU_MP_DATA *CpuMpData
+ )
+{
+ mCpuMpData = CpuMpData;
+}
+
+/**
+ Initialize global data for MP support.
+
+ @param[in] CpuMpData The pointer to CPU MP Data structure.
+**/
+VOID
+InitMpGlobalData (
+ IN CPU_MP_DATA *CpuMpData
+ )
+{
+ SaveCpuMpData (CpuMpData);
+
+}
/**
This service executes a caller provided function on all enabled APs.
diff --git a/UefiCpuPkg/Library/MpInitLib/MpLib.c b/UefiCpuPkg/Library/MpInitLib/MpLib.c index 7384f5d0d2..8dfbf5706a 100644 --- a/UefiCpuPkg/Library/MpInitLib/MpLib.c +++ b/UefiCpuPkg/Library/MpInitLib/MpLib.c @@ -14,6 +14,8 @@ #include "MpLib.h"
+EFI_GUID mCpuInitMpLibHobGuid = CPU_INIT_MP_LIB_HOB_GUID;
+
/**
Get the Application Processors state.
@@ -303,6 +305,12 @@ MpInitLibInitialize ( //
MtrrGetAllMtrrs (&CpuMpData->MtrrTable);
+
+ //
+ // Initialize global data for MP support
+ //
+ InitMpGlobalData (CpuMpData);
+
return EFI_SUCCESS;
}
@@ -386,3 +394,25 @@ MpInitLibGetNumberOfProcessors ( {
return EFI_UNSUPPORTED;
}
+/**
+ Get pointer to CPU MP Data structure from GUIDed HOB.
+
+ @return The pointer to CPU MP Data structure.
+**/
+CPU_MP_DATA *
+GetCpuMpDataFromGuidedHob (
+ VOID
+ )
+{
+ EFI_HOB_GUID_TYPE *GuidHob;
+ VOID *DataInHob;
+ CPU_MP_DATA *CpuMpData;
+
+ CpuMpData = NULL;
+ GuidHob = GetFirstGuidHob (&mCpuInitMpLibHobGuid);
+ if (GuidHob != NULL) {
+ DataInHob = GET_GUID_HOB_DATA (GuidHob);
+ CpuMpData = (CPU_MP_DATA *) (*(UINTN *) DataInHob);
+ }
+ return CpuMpData;
+}
diff --git a/UefiCpuPkg/Library/MpInitLib/MpLib.h b/UefiCpuPkg/Library/MpInitLib/MpLib.h index 625d061221..d3ccac8d06 100644 --- a/UefiCpuPkg/Library/MpInitLib/MpLib.h +++ b/UefiCpuPkg/Library/MpInitLib/MpLib.h @@ -35,6 +35,11 @@ #include <Library/MtrrLib.h>
#include <Library/HobLib.h>
+#define CPU_INIT_MP_LIB_HOB_GUID \
+ { \
+ 0x58eb6a19, 0x3699, 0x4c68, { 0xa8, 0x36, 0xda, 0xcd, 0x8e, 0xdc, 0xad, 0x4a } \
+ }
+
//
// AP loop state when APs are in idle state
// It's value is the same with PcdCpuApLoopMode
@@ -198,6 +203,9 @@ struct _CPU_MP_DATA { CPU_AP_DATA *CpuData;
volatile MP_CPU_EXCHANGE_INFO *MpCpuExchangeInfo;
};
+
+extern EFI_GUID mCpuInitMpLibHobGuid;
+
/**
Assembly code to place AP into safe loop mode.
@@ -233,6 +241,46 @@ AsmGetAddressMap ( );
/**
+ Get the pointer to CPU MP Data structure.
+
+ @return The pointer to CPU MP Data structure.
+**/
+CPU_MP_DATA *
+GetCpuMpData (
+ VOID
+ );
+
+/**
+ Save the pointer to CPU MP Data structure.
+
+ @param[in] CpuMpData The pointer to CPU MP Data structure will be saved.
+**/
+VOID
+SaveCpuMpData (
+ IN CPU_MP_DATA *CpuMpData
+ );
+
+/**
+ Initialize global data for MP support.
+
+ @param[in] CpuMpData The pointer to CPU MP Data structure.
+**/
+VOID
+InitMpGlobalData (
+ IN CPU_MP_DATA *CpuMpData
+ );
+
+/**
+ Get pointer to CPU MP Data structure from GUIDed HOB.
+
+ @return The pointer to CPU MP Data structure.
+**/
+CPU_MP_DATA *
+GetCpuMpDataFromGuidedHob (
+ VOID
+ );
+
+/**
Detect whether specified processor can find matching microcode patch and load it.
@param[in] PeiCpuMpData Pointer to PEI CPU MP Data
diff --git a/UefiCpuPkg/Library/MpInitLib/PeiMpLib.c b/UefiCpuPkg/Library/MpInitLib/PeiMpLib.c index a7e9fb8ed3..6211e71795 100644 --- a/UefiCpuPkg/Library/MpInitLib/PeiMpLib.c +++ b/UefiCpuPkg/Library/MpInitLib/PeiMpLib.c @@ -15,6 +15,60 @@ #include "MpLib.h"
/**
+ Get pointer to CPU MP Data structure.
+
+ @return The pointer to CPU MP Data structure.
+**/
+CPU_MP_DATA *
+GetCpuMpData (
+ VOID
+ )
+{
+ CPU_MP_DATA *CpuMpData;
+
+ CpuMpData = GetCpuMpDataFromGuidedHob ();
+ ASSERT (CpuMpData != NULL);
+ return CpuMpData;
+}
+
+/**
+ Save the pointer to CPU MP Data structure.
+
+ @param[in] CpuMpData The pointer to CPU MP Data structure will be saved.
+**/
+VOID
+SaveCpuMpData (
+ IN CPU_MP_DATA *CpuMpData
+ )
+{
+ UINT64 Data64;
+ //
+ // Build location of CPU MP DATA buffer in HOB
+ //
+ Data64 = (UINT64) (UINTN) CpuMpData;
+ BuildGuidDataHob (
+ &mCpuInitMpLibHobGuid,
+ (VOID *) &Data64,
+ sizeof (UINT64)
+ );
+}
+
+
+/**
+ Initialize global data for MP support.
+
+ @param[in] CpuMpData The pointer to CPU MP Data structure.
+**/
+VOID
+InitMpGlobalData (
+ IN CPU_MP_DATA *CpuMpData
+ )
+{
+
+ SaveCpuMpData (CpuMpData);
+}
+
+/**
This service executes a caller provided function on all enabled APs.
@param[in] Procedure A pointer to the function to be run on
|