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/** @file
Source file for FSP notify phase PEI module
Copyright (c) 2016 - 2018, Intel Corporation. All rights reserved.
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include "FspNotifyPhasePeim.h"
/**
This function waits for FSP notify.
@param This Entry point for DXE IPL PPI.
@param PeiServices General purpose services available to every PEIM.
@param HobList Address to the Pei HOB list.
@return EFI_SUCCESS This function never returns.
**/
EFI_STATUS
EFIAPI
WaitForNotify (
IN CONST EFI_DXE_IPL_PPI *This,
IN EFI_PEI_SERVICES **PeiServices,
IN EFI_PEI_HOB_POINTERS HobList
);
CONST EFI_DXE_IPL_PPI mDxeIplPpi = {
WaitForNotify
};
CONST EFI_PEI_PPI_DESCRIPTOR mInstallDxeIplPpi = {
EFI_PEI_PPI_DESCRIPTOR_PPI,
&gEfiDxeIplPpiGuid,
(VOID *)&mDxeIplPpi
};
CONST EFI_PEI_PPI_DESCRIPTOR gEndOfPeiSignalPpi = {
(EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
&gEfiEndOfPeiSignalPpiGuid,
NULL
};
CONST EFI_PEI_PPI_DESCRIPTOR gFspReadyForNotifyPhasePpi = {
(EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
&gFspReadyForNotifyPhasePpiGuid,
NULL
};
/**
This function waits for FSP notify.
@param This Entry point for DXE IPL PPI.
@param PeiServices General purpose services available to every PEIM.
@param HobList Address to the Pei HOB list.
@return EFI_SUCCESS This function never returns.
**/
EFI_STATUS
EFIAPI
WaitForNotify (
IN CONST EFI_DXE_IPL_PPI *This,
IN EFI_PEI_SERVICES **PeiServices,
IN EFI_PEI_HOB_POINTERS HobList
)
{
EFI_STATUS Status;
DEBUG ((DEBUG_INFO | DEBUG_INIT, "FSP HOB is located at 0x%08X\n", HobList));
//
// End of PEI phase signal
//
Status = PeiServicesInstallPpi (&gEndOfPeiSignalPpi);
ASSERT_EFI_ERROR (Status);
//
// Give control back to BootLoader after FspSiliconInit
//
DEBUG ((DEBUG_INFO | DEBUG_INIT, "FSP is waiting for NOTIFY\n"));
FspSiliconInitDone2 (EFI_SUCCESS);
//
// BootLoader called FSP again through NotifyPhase
//
FspWaitForNotify ();
if (GetFspGlobalDataPointer ()->FspMode == FSP_IN_API_MODE) {
//
// Should not come here
//
while (TRUE) {
DEBUG ((DEBUG_ERROR, "No FSP API should be called after FSP is DONE!\n"));
SetFspApiReturnStatus (EFI_UNSUPPORTED);
Pei2LoaderSwitchStack ();
}
}
return EFI_SUCCESS;
}
/**
FSP notify phase PEI module entry point
@param[in] FileHandle Not used.
@param[in] PeiServices General purpose services available to every PEIM.
@retval EFI_SUCCESS The function completes successfully
@retval EFI_OUT_OF_RESOURCES Insufficient resources to create database
**/
EFI_STATUS
FspNotifyPhasePeimEntryPoint (
IN EFI_PEI_FILE_HANDLE FileHandle,
IN CONST EFI_PEI_SERVICES **PeiServices
)
{
EFI_STATUS Status;
VOID *OldDxeIplPpi;
EFI_PEI_PPI_DESCRIPTOR *OldDescriptor;
DEBUG ((DEBUG_INFO | DEBUG_INIT, "The entry of FspNotificationPeim\n"));
if (GetFspGlobalDataPointer ()->FspMode == FSP_IN_API_MODE) {
//
// Locate old DXE IPL PPI
//
Status = PeiServicesLocatePpi (
&gEfiDxeIplPpiGuid,
0,
&OldDescriptor,
&OldDxeIplPpi
);
ASSERT_EFI_ERROR (Status);
//
// Re-install the DXE IPL PPI to wait for notify
//
Status = PeiServicesReInstallPpi (OldDescriptor, &mInstallDxeIplPpi);
ASSERT_EFI_ERROR (Status);
} else {
Status = PeiServicesInstallPpi (&gFspReadyForNotifyPhasePpi);
ASSERT_EFI_ERROR (Status);
}
return EFI_SUCCESS;
}
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