Add IntelFspPkg to support create FSP bin based on EDKII.
Contributed-under: TianoCore Contribution Agreement 1.0 Signed off by: Ravi Rangarajan <ravi.p.rangarajan@intel.com> Reviewed by: Maurice Ma <maurice.ma@intel.com> Reviewed by: Jiewen Yao <jiewen.yao@intel.com> Reviewed by: Giri Mudusuru <giri.p.mudusuru@intel.com> Reviewed by: Liming Gao <liming.gao@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15705 6f19259b-4bc3-4df7-8a09-765794883524
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178
IntelFspPkg/Library/BaseFspPlatformLib/FspPlatformNotify.c
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178
IntelFspPkg/Library/BaseFspPlatformLib/FspPlatformNotify.c
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/** @file
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Copyright (c) 2014, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php.
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include <PiPei.h>
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#include <Library/PeiServicesLib.h>
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#include <Library/PeiServicesTablePointerLib.h>
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#include <Library/BaseLib.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/PcdLib.h>
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#include <Library/DebugLib.h>
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#include <Library/HobLib.h>
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#include <Library/FspSwitchStackLib.h>
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#include <Library/FspCommonLib.h>
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#include <Guid/EventGroup.h>
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#include <FspApi.h>
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#include <Protocol/PciEnumerationComplete.h>
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EFI_PEI_PPI_DESCRIPTOR mPeiPostPciEnumerationPpi = {
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(EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
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&gEfiPciEnumerationCompleteProtocolGuid,
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NULL
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};
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EFI_PEI_PPI_DESCRIPTOR mPeiReadyToBootPpi = {
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(EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
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&gEfiEventReadyToBootGuid,
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NULL
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};
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UINT32 mFspNotfifySequence[] = {
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EnumInitPhaseAfterPciEnumeration,
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EnumInitPhaseReadyToBoot
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};
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/**
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Install FSP notification.
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@param[in] NotificatonCode FSP notification code
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@retval EFI_SUCCESS Notify FSP successfully
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@retval EFI_INVALID_PARAMETER NotificatonCode is invalid
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**/
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EFI_STATUS
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EFIAPI
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FspNotificationHandler (
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IN UINT32 NotificatonCode
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)
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{
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EFI_STATUS Status;
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Status = EFI_SUCCESS;
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switch (NotificatonCode) {
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case EnumInitPhaseAfterPciEnumeration:
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//
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// Do POST PCI initialization if needed
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//
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DEBUG ((DEBUG_INFO | DEBUG_INIT, "FSP Post PCI Enumeration ...\n"));
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PeiServicesInstallPpi (&mPeiPostPciEnumerationPpi);
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break;
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case EnumInitPhaseReadyToBoot:
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//
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// Ready To Boot
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//
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DEBUG ((DEBUG_INFO| DEBUG_INIT, "FSP Ready To Boot ...\n"));
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PeiServicesInstallPpi (&mPeiReadyToBootPpi);
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break;
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default:
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Status = EFI_INVALID_PARAMETER;
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break;
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}
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return Status;
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}
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/**
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This function transfer control to the ContinuationFunc passed in by the
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bootloader.
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**/
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VOID
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EFIAPI
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FspInitDone (
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VOID
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)
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{
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FSP_INIT_PARAMS *FspInitParams;
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FspInitParams = (FSP_INIT_PARAMS *)GetFspApiParameter ();
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//
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// Modify the parameters for ContinuationFunc
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//
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SetFspContinuationFuncParameter(EFI_SUCCESS, 0);
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SetFspContinuationFuncParameter((UINT32)GetHobList(), 1);
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//
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// Modify the return address to ContinuationFunc
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//
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SetFspApiReturnAddress((UINT32)FspInitParams->ContinuationFunc);
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//
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// Give control back to the boot loader framework caller after FspInit is done
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// It is done throught the continuation function
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//
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SetFspMeasurePoint (FSP_PERF_ID_API_FSPINIT_EXIT);
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Pei2LoaderSwitchStack();
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}
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/**
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This function handle NotifyPhase API call from the bootloader.
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It gives control back to the bootloader after it is handled. If the
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Notification code is a ReadyToBoot event, this function will return
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and FSP continues the remaining execution until it reaches the DxeIpl.
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**/
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VOID
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FspWaitForNotify (
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VOID
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)
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{
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EFI_STATUS Status;
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UINT32 NotificatonValue;
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UINT32 NotificatonCount;
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UINT8 Count;
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NotificatonCount = 0;
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while (NotificatonCount < sizeof(mFspNotfifySequence) / sizeof(UINT32)) {
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Count = (NotificatonCount << 1) & 0x07;
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SetFspMeasurePoint (FSP_PERF_ID_API_NOTIFY_POSTPCI_ENTRY + Count);
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NotificatonValue = ((NOTIFY_PHASE_PARAMS *)(UINTN)GetFspApiParameter ())->Phase;
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DEBUG ((DEBUG_INFO, "FSP Got Notification. Notification Value : 0x%08X\n", NotificatonValue));
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if (mFspNotfifySequence[NotificatonCount] != NotificatonValue) {
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//
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// Notify code does not follow the predefined order
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//
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SetFspApiReturnStatus(EFI_UNSUPPORTED);
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} else {
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//
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// Process Notification and Give control back to the boot loader framework caller
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//
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Status = FspNotificationHandler (NotificatonValue);
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SetFspApiReturnStatus(Status);
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if (!EFI_ERROR(Status)) {
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NotificatonCount++;
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SetFspApiReturnStatus(EFI_SUCCESS);
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if (NotificatonValue == EnumInitPhaseReadyToBoot) {
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break;
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}
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}
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}
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SetFspMeasurePoint (FSP_PERF_ID_API_NOTIFY_POSTPCI_EXIT + Count);
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Pei2LoaderSwitchStack();
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}
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//
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// Control goes back to the PEI Core and it dispatches further PEIMs.
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// DXEIPL is the final one to transfer control back to the boot loader.
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//
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}
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