Dear All:
I met a question during debug multi-processor code.
I found if AP's procedure call GetPeiServicesTablePointer function , then it
would hang.
GetPeiServicesTablePointer (
VOID
)
{
CONST EFI_PEI_SERVICES **PeiServices;
IA32_DESCRIPTOR Idtr;
AsmReadIdtr (&Idtr);
PeiServices = (CONST EFI_PEI_SERVICES **) (*(UINTN*)(Idtr.Base - sizeof
(UINTN)));
ASSERT (PeiServices != NULL);
return PeiServices;
}
It seems BSP and AP use different IDT table? Why?
Thanks
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