/**
Free AP reset vector buffer.
@param[in] CpuMpData The pointer to CPU MP Data structure.
**/
VOID
FreeResetVector (
IN CPU_MP_DATA *CpuMpData
)
{
if (CpuMpData->SaveRestoreFlag) {
RestoreWakeupBuffer (CpuMpData);
}
}
/**
Notify function on End Of PEI PPI.
On S3 boot, this function will restore wakeup buffer data.
On normal boot, this function will flag wakeup buffer to be un-used type.
@param[in] PeiServices The pointer to the PEI Services Table.
@param[in] NotifyDescriptor Address of the notification descriptor data structure.
@param[in] Ppi Address of the PPI that was installed.
@retval EFI_SUCCESS When everything is OK.
**/
EFI_STATUS
EFIAPI
CpuMpEndOfPeiCallback (
IN EFI_PEI_SERVICES **PeiServices,
IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,
IN VOID *Ppi
)
{
EFI_STATUS Status;
EFI_BOOT_MODE BootMode;
CPU_MP_DATA *CpuMpData;
EFI_PEI_HOB_POINTERS Hob;
EFI_HOB_MEMORY_ALLOCATION *MemoryHob;
DEBUG ((DEBUG_INFO, "PeiMpInitLib: CpuMpEndOfPeiCallback () invoked\n"));
Status = PeiServicesGetBootMode (&BootMode);
ASSERT_EFI_ERROR (Status);
CpuMpData = GetCpuMpData ();
if (BootMode != BOOT_ON_S3_RESUME) {
//
// Get the HOB list for processing
//
Hob.Raw = GetHobList ();
//
// Collect memory ranges
//
while (!END_OF_HOB_LIST (Hob)) {
if (Hob.Header->HobType == EFI_HOB_TYPE_MEMORY_ALLOCATION) {
MemoryHob = Hob.MemoryAllocation;
if (MemoryHob->AllocDescriptor.MemoryBaseAddress == CpuMpData->WakeupBuffer) {
//
// Flag this HOB type to un-used
//
GET_HOB_TYPE (Hob) = EFI_HOB_TYPE_UNUSED;
break;
}
}
Hob.Raw = GET_NEXT_HOB (Hob);
}
} else {
CpuMpData->SaveRestoreFlag = TRUE;
RestoreWakeupBuffer (CpuMpData);
}
return EFI_SUCCESS;
}
/**
Free AP reset vector buffer.
@param[in] CpuMpData The pointer to CPU MP Data structure.
**/
VOID
FreeResetVector (
IN CPU_MP_DATA *CpuMpData
)
{
EFI_STATUS Status;
UINTN ApResetVectorSize;
if (CpuMpData->SaveRestoreFlag) {
RestoreWakeupBuffer (CpuMpData);
} else {
ApResetVectorSize = CpuMpData->AddressMap.RendezvousFunnelSize +
sizeof (MP_CPU_EXCHANGE_INFO);
Status = gBS->FreePages(
(EFI_PHYSICAL_ADDRESS)CpuMpData->WakeupBuffer,
EFI_SIZE_TO_PAGES (ApResetVectorSize)
);
ASSERT_EFI_ERROR (Status);
}
}
