\r
Initialize the memory services.\r
\r
- @param PrivateData Points to PeiCore's private instance data.\r
+\r
+ @param PrivateData Add parameter description\r
@param SecCoreData Points to a data structure containing information about the PEI core's operating\r
environment, such as the size and location of temporary RAM, the stack location and\r
the BFV location.\r
\r
/**\r
\r
- This function registers the found memory configuration with the PEI Foundation.\r
+ Install the permanent memory is now available.\r
+ Creates HOB (PHIT and Stack).\r
\r
- The usage model is that the PEIM that discovers the permanent memory shall invoke this service.\r
- This routine will hold discoveried memory information into PeiCore's private data,\r
- and set SwitchStackSignal flag. After PEIM who discovery memory is dispatched,\r
- PeiDispatcher will migrate temporary memory to permenement memory.\r
- \r
@param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.\r
@param MemoryBegin Start of memory address.\r
@param MemoryLength Length of memory.\r
@param Memory Pointer of memory allocated.\r
\r
@retval EFI_SUCCESS The allocation was successful\r
+ @retval EFI_INVALID_PARAMETER Only AllocateAnyAddress is supported.\r
@retval EFI_NOT_AVAILABLE_YET Called with permanent memory not available\r
@retval EFI_OUT_OF_RESOURCES There is not enough HOB heap to satisfy the requirement\r
to allocate the number of pages.\r
EFI_STATUS\r
EFIAPI\r
PeiAllocatePages (\r
- IN CONST EFI_PEI_SERVICES **PeiServices,\r
- IN EFI_MEMORY_TYPE MemoryType,\r
- IN UINTN Pages,\r
- OUT EFI_PHYSICAL_ADDRESS *Memory\r
+ IN CONST EFI_PEI_SERVICES **PeiServices,\r
+ IN EFI_MEMORY_TYPE MemoryType,\r
+ IN UINTN Pages,\r
+ OUT EFI_PHYSICAL_ADDRESS *Memory\r
)\r
{\r
PEI_CORE_INSTANCE *PrivateData;\r
EFI_PEI_HOB_POINTERS Hob;\r
+ EFI_PHYSICAL_ADDRESS Offset;\r
EFI_PHYSICAL_ADDRESS *FreeMemoryTop;\r
EFI_PHYSICAL_ADDRESS *FreeMemoryBottom;\r
\r
if (!PrivateData->PeiMemoryInstalled) {\r
//\r
// When PeiInstallMemory is called but CAR has *not* been moved to temporary memory,\r
- // the AllocatePage will dependent on the field of PEI_CORE_INSTANCE structure.\r
+ // the AllocatePage will dependent the field of PEI_CORE_INSTANCE structure.\r
//\r
if (!PrivateData->SwitchStackSignal) {\r
return EFI_NOT_AVAILABLE_YET;\r
}\r
\r
//\r
- // Check to see if on 4k boundary, If not aligned, make the allocation aligned.\r
+ // Check to see if on 4k boundary\r
//\r
- *(FreeMemoryTop) -= *(FreeMemoryTop) & 0xFFF;\r
+ Offset = *(FreeMemoryTop) & 0xFFF;\r
+ \r
+ //\r
+ // If not aligned, make the allocation aligned.\r
+ //\r
+ if (Offset != 0) {\r
+ *(FreeMemoryTop) -= Offset;\r
+ }\r
\r
//\r
// Verify that there is sufficient memory to satisfy the allocation\r
\r
/**\r
\r
- Pool allocation service. Before permenent memory is discoveried, the pool will \r
- be allocated the heap in the CAR. Genenrally, the size of heap in temporary \r
- memory does not exceed to 64K, so the biggest pool size could be allocated is \r
- 64K.\r
+ Memory allocation service on the CAR.\r
+\r
\r
- @param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.\r
- @param Size Amount of memory required\r
- @param Buffer Address of pointer to the buffer\r
+ @param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.\r
+ @param Size Amount of memory required\r
+ @param Buffer Address of pointer to the buffer\r
\r
@retval EFI_SUCCESS The allocation was successful\r
@retval EFI_OUT_OF_RESOURCES There is not enough heap to satisfy the requirement\r
EFI_STATUS\r
EFIAPI\r
PeiAllocatePool (\r
- IN CONST EFI_PEI_SERVICES **PeiServices,\r
- IN UINTN Size,\r
- OUT VOID **Buffer\r
+ IN CONST EFI_PEI_SERVICES **PeiServices,\r
+ IN UINTN Size,\r
+ OUT VOID **Buffer\r
)\r
{\r
EFI_STATUS Status;\r
EFI_HOB_MEMORY_POOL *Hob;\r
\r
- //\r
- // If some "post-memory" PEIM wishes to allocate larger pool,\r
- // it should use AllocatePages service instead.\r
- //\r
- \r
- //\r
- // Generally, the size of heap in temporary memory does not exceed to 64K,\r
- // so the maxmium size of pool is 0x10000 - sizeof (EFI_HOB_MEMORY_POOL)\r
- //\r
- ASSERT (Size < 0x10000 - sizeof (EFI_HOB_MEMORY_POOL));\r
- Status = PeiServicesCreateHob (\r
+ //\r
+ // If some "post-memory" PEIM wishes to allocate larger pool,\r
+ // it should use AllocatePages service instead.\r
+ //\r
+ ASSERT (Size < 0x10000 - sizeof (EFI_HOB_MEMORY_POOL));\r
+ Status = PeiServicesCreateHob (\r
EFI_HOB_TYPE_MEMORY_POOL,\r
(UINT16)(sizeof (EFI_HOB_MEMORY_POOL) + Size),\r
(VOID **)&Hob\r
);\r
*Buffer = Hob+1; \r
\r
+\r
return Status;\r
}\r
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