diff --git a/ArmPlatformPkg/Library/PeiServicesTablePointerLib/PeiServicesTablePointer.c b/ArmPlatformPkg/Library/PeiServicesTablePointerLib/PeiServicesTablePointer.c index cb0041f90d..8be91c000d 100644 --- a/ArmPlatformPkg/Library/PeiServicesTablePointerLib/PeiServicesTablePointer.c +++ b/ArmPlatformPkg/Library/PeiServicesTablePointerLib/PeiServicesTablePointer.c @@ -67,4 +67,24 @@ GetPeiServicesTablePointer ( return (CONST EFI_PEI_SERVICES**)PeiServicesTablePointer; } +/** + Perform CPU specific actions required to migrate the PEI Services Table + pointer from temporary RAM to permanent RAM. + For IA32 CPUs, the PEI Services Table pointer is stored in the 4 bytes + immediately preceding the Interrupt Descriptor Table (IDT) in memory. + For X64 CPUs, the PEI Services Table pointer is stored in the 8 bytes + immediately preceding the Interrupt Descriptor Table (IDT) in memory. + For Itanium and ARM CPUs, a the PEI Services Table Pointer is stored in + a dedicated CPU register. This means that there is no memory storage + associated with storing the PEI Services Table pointer, so no additional + migration actions are required for Itanium or ARM CPUs. + +**/ +VOID +EFIAPI +MigratePeiServicesTablePointer ( + ) +{ + return; +}