/**
This function handle NotifyPhase API call from the BootLoader.
It gives control back to the BootLoader after it is handled. If the
Notification code is a ReadyToBoot event, this function will return
and FSP continues the remaining execution until it reaches the DxeIpl.
**/
VOID
FspWaitForNotify (
VOID
)
{
EFI_STATUS Status;
UINT32 NotificationValue;
UINT32 NotificationCount;
UINT8 Count;
NotificationCount = 0;
while (NotificationCount < sizeof(mFspNotifySequence) / sizeof(UINT32)) {
Count = (UINT8)((NotificationCount << 1) & 0x07);
SetFspMeasurePoint (FSP_PERF_ID_API_NOTIFY_POSTPCI_ENTRY + Count);
NotificationValue = ((NOTIFY_PHASE_PARAMS *)(UINTN)GetFspApiParameter ())->Phase;
DEBUG ((DEBUG_INFO, "FSP Got Notification. Notification Value : 0x%08X\n", NotificationValue));
if (mFspNotifySequence[NotificationCount] != NotificationValue) {
//
// Notify code does not follow the predefined order
//
DEBUG ((DEBUG_INFO, "Unsupported FSP Notification Value\n"));
SetFspApiReturnStatus(EFI_UNSUPPORTED);
} else {
//
// Process Notification and Give control back to the boot loader framework caller
//
Status = FspNotificationHandler (NotificationValue);
DEBUG ((DEBUG_INFO, "FSP Notification Handler Returns : 0x%08X\n", Status));
SetFspApiReturnStatus(Status);
if (!EFI_ERROR(Status)) {
NotificationCount++;
SetFspApiReturnStatus(EFI_SUCCESS);
if (NotificationValue == EnumInitPhaseReadyToBoot) {
break;
}
}
}
SetFspMeasurePoint (FSP_PERF_ID_API_NOTIFY_POSTPCI_EXIT + Count);
Pei2LoaderSwitchStack();
}
//
// Control goes back to the PEI Core and it dispatches further PEIMs.
// DXEIPL is the final one to transfer control back to the boot loader.
//
}
/**
This function handle NotifyPhase API call from the BootLoader.
It gives control back to the BootLoader after it is handled. If the
Notification code is a ReadyToBoot event, this function will return
and FSP continues the remaining execution until it reaches the DxeIpl.
**/
VOID
FspWaitForNotify (
VOID
)
{
EFI_STATUS Status;
UINT32 NotificationValue;
UINT32 NotificationCount;
UINT8 Count;
NotificationCount = 0;
while (NotificationCount < sizeof(mFspNotifySequence) / sizeof(UINT32)) {
Count = (UINT8)((NotificationCount << 1) & 0x07);
SetFspMeasurePoint (FSP_PERF_ID_API_NOTIFY_POST_PCI_ENTRY + Count);
if (NotificationCount == 0) {
SetPhaseStatusCode (FSP_STATUS_CODE_POST_PCIE_ENUM_NOTIFICATION);
PERF_START_EX (&gFspPerformanceDataGuid, "EventRec", NULL, 0, FSP_STATUS_CODE_POST_PCIE_ENUM_NOTIFICATION | FSP_STATUS_CODE_COMMON_CODE | FSP_STATUS_CODE_API_ENTRY);
REPORT_STATUS_CODE (EFI_PROGRESS_CODE, FSP_STATUS_CODE_POST_PCIE_ENUM_NOTIFICATION | FSP_STATUS_CODE_COMMON_CODE | FSP_STATUS_CODE_API_ENTRY);
} else if (NotificationCount == 1) {
SetPhaseStatusCode (FSP_STATUS_CODE_READY_TO_BOOT_NOTIFICATION);
PERF_START_EX(&gFspPerformanceDataGuid, "EventRec", NULL, 0, FSP_STATUS_CODE_READY_TO_BOOT_NOTIFICATION | FSP_STATUS_CODE_COMMON_CODE | FSP_STATUS_CODE_API_ENTRY);
REPORT_STATUS_CODE (EFI_PROGRESS_CODE, FSP_STATUS_CODE_READY_TO_BOOT_NOTIFICATION | FSP_STATUS_CODE_COMMON_CODE | FSP_STATUS_CODE_API_ENTRY);
} else if (NotificationCount == 2) {
SetPhaseStatusCode (FSP_STATUS_CODE_END_OF_FIRMWARE_NOTIFICATION);
PERF_START_EX (&gFspPerformanceDataGuid, "EventRec", NULL, 0, FSP_STATUS_CODE_END_OF_FIRMWARE_NOTIFICATION | FSP_STATUS_CODE_COMMON_CODE | FSP_STATUS_CODE_API_ENTRY);
REPORT_STATUS_CODE (EFI_PROGRESS_CODE, FSP_STATUS_CODE_END_OF_FIRMWARE_NOTIFICATION | FSP_STATUS_CODE_COMMON_CODE | FSP_STATUS_CODE_API_ENTRY);
}
NotificationValue = ((NOTIFY_PHASE_PARAMS *)(UINTN)GetFspApiParameter ())->Phase;
DEBUG ((DEBUG_INFO | DEBUG_INIT, "NotifyPhaseApi() - Begin [Phase: %08X]\n", NotificationValue));
if (mFspNotifySequence[NotificationCount] != NotificationValue) {
//
// Notify code does not follow the predefined order
//
DEBUG ((DEBUG_INFO, "Unsupported FSP Notification Value\n"));
Status = EFI_UNSUPPORTED;
} else {
//
// Process Notification and Give control back to the boot loader framework caller
//
Status = FspNotificationHandler (NotificationValue);
if (!EFI_ERROR(Status)) {
NotificationCount++;
}
}
DEBUG ((DEBUG_INFO | DEBUG_INIT, "NotifyPhaseApi() - End [Status: 0x%08X]\n", Status));
SetFspMeasurePoint (FSP_PERF_ID_API_NOTIFY_POST_PCI_EXIT + Count);
if ((NotificationCount - 1) == 0) {
PERF_END_EX(&gFspPerformanceDataGuid, "EventRec", NULL, 0, FSP_STATUS_CODE_POST_PCIE_ENUM_NOTIFICATION | FSP_STATUS_CODE_COMMON_CODE | FSP_STATUS_CODE_API_EXIT);
REPORT_STATUS_CODE (EFI_PROGRESS_CODE, FSP_STATUS_CODE_POST_PCIE_ENUM_NOTIFICATION | FSP_STATUS_CODE_COMMON_CODE | FSP_STATUS_CODE_API_EXIT);
} else if ((NotificationCount - 1) == 1) {
PERF_END_EX(&gFspPerformanceDataGuid, "EventRec", NULL, 0, FSP_STATUS_CODE_READY_TO_BOOT_NOTIFICATION | FSP_STATUS_CODE_COMMON_CODE | FSP_STATUS_CODE_API_EXIT);
REPORT_STATUS_CODE (EFI_PROGRESS_CODE, FSP_STATUS_CODE_READY_TO_BOOT_NOTIFICATION | FSP_STATUS_CODE_COMMON_CODE | FSP_STATUS_CODE_API_EXIT);
} else if ((NotificationCount - 1) == 2) {
PERF_END_EX(&gFspPerformanceDataGuid, "EventRec", NULL, 0, FSP_STATUS_CODE_END_OF_FIRMWARE_NOTIFICATION | FSP_STATUS_CODE_COMMON_CODE | FSP_STATUS_CODE_API_EXIT);
REPORT_STATUS_CODE (EFI_PROGRESS_CODE, FSP_STATUS_CODE_END_OF_FIRMWARE_NOTIFICATION | FSP_STATUS_CODE_COMMON_CODE | FSP_STATUS_CODE_API_EXIT);
}
do {
SetFspApiReturnStatus(Status);
Pei2LoaderSwitchStack();
if (Status != EFI_SUCCESS) {
DEBUG ((DEBUG_ERROR, "!!!ERROR: NotifyPhaseApi() [Phase: %08X] - Failed - [Status: 0x%08X]\n", NotificationValue, Status));
}
} while (Status != EFI_SUCCESS);
}
//
// Control goes back to the PEI Core and it dispatches further PEIMs.
// DXEIPL is the final one to transfer control back to the boot loader.
//
}
