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