audk/IntelFsp2WrapperPkg/FspWrapperNotifyDxe/FspWrapperNotifyDxe.c

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/** @file
This driver will register two callbacks to call fsp's notifies.
Copyright (c) 2014 - 2016, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php.
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#include <PiDxe.h>
#include <Protocol/PciEnumerationComplete.h>
#include <Library/UefiDriverEntryPoint.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/DebugLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/UefiLib.h>
#include <Library/FspWrapperApiLib.h>
#include <Library/FspWrapperPlatformLib.h>
#include <Library/PerformanceLib.h>
#include <Library/HobLib.h>
typedef
EFI_STATUS
(EFIAPI * ADD_PERFORMANCE_RECORDS)(
IN CONST VOID *HobStart
);
struct _ADD_PERFORMANCE_RECORD_PROTOCOL {
ADD_PERFORMANCE_RECORDS AddPerformanceRecords;
};
typedef struct _ADD_PERFORMANCE_RECORD_PROTOCOL ADD_PERFORMANCE_RECORD_PROTOCOL;
extern EFI_GUID gAddPerfRecordProtocolGuid;
extern EFI_GUID gFspHobGuid;
extern EFI_GUID gFspApiPerformanceGuid;
EFI_EVENT mExitBootServicesEvent = NULL;
/**
Relocate this image under 4G memory.
@param ImageHandle Handle of driver image.
@param SystemTable Pointer to system table.
@retval EFI_SUCCESS Image successfully relocated.
@retval EFI_ABORTED Failed to relocate image.
**/
EFI_STATUS
RelocateImageUnder4GIfNeeded (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
);
/**
PciEnumerationComplete Protocol notification event handler.
@param[in] Event Event whose notification function is being invoked.
@param[in] Context Pointer to the notification function's context.
**/
VOID
EFIAPI
OnPciEnumerationComplete (
IN EFI_EVENT Event,
IN VOID *Context
)
{
NOTIFY_PHASE_PARAMS NotifyPhaseParams;
EFI_STATUS Status;
VOID *Interface;
//
// Try to locate it because gEfiPciEnumerationCompleteProtocolGuid will trigger it once when registration.
// Just return if it is not found.
//
Status = gBS->LocateProtocol (
&gEfiPciEnumerationCompleteProtocolGuid,
NULL,
&Interface
);
if (EFI_ERROR (Status)) {
return ;
}
NotifyPhaseParams.Phase = EnumInitPhaseAfterPciEnumeration;
PERF_START_EX(&gFspApiPerformanceGuid, "EventRec", NULL, 0, 0x6000);
Status = CallFspNotifyPhase (&NotifyPhaseParams);
PERF_END_EX(&gFspApiPerformanceGuid, "EventRec", NULL, 0, 0x607F);
//
// Reset the system if FSP API returned FSP_STATUS_RESET_REQUIRED status
//
if ((Status >= FSP_STATUS_RESET_REQUIRED_COLD) && (Status <= FSP_STATUS_RESET_REQUIRED_8)) {
DEBUG((DEBUG_INFO, "FSP NotifyPhase AfterPciEnumeration requested reset 0x%x\n", Status));
CallFspWrapperResetSystem ((UINT32)Status);
}
if (Status != EFI_SUCCESS) {
DEBUG((DEBUG_ERROR, "FSP NotifyPhase AfterPciEnumeration failed, status: 0x%x\n", Status));
} else {
DEBUG((DEBUG_INFO, "FSP NotifyPhase AfterPciEnumeration Success.\n"));
}
}
/**
Notification function of EVT_GROUP_READY_TO_BOOT event group.
This is a notification function registered on EVT_GROUP_READY_TO_BOOT event group.
When the Boot Manager is about to load and execute a boot option, it reclaims variable
storage if free size is below the threshold.
@param[in] Event Event whose notification function is being invoked.
@param[in] Context Pointer to the notification function's context.
**/
VOID
EFIAPI
OnReadyToBoot (
IN EFI_EVENT Event,
IN VOID *Context
)
{
NOTIFY_PHASE_PARAMS NotifyPhaseParams;
EFI_STATUS Status;
ADD_PERFORMANCE_RECORD_PROTOCOL *AddPerfRecordInterface;
EFI_PEI_HOB_POINTERS Hob;
VOID **FspHobListPtr;
gBS->CloseEvent (Event);
NotifyPhaseParams.Phase = EnumInitPhaseReadyToBoot;
PERF_START_EX(&gFspApiPerformanceGuid, "EventRec", NULL, 0, 0x4000);
Status = CallFspNotifyPhase (&NotifyPhaseParams);
PERF_END_EX(&gFspApiPerformanceGuid, "EventRec", NULL, 0, 0x407F);
//
// Reset the system if FSP API returned FSP_STATUS_RESET_REQUIRED status
//
if ((Status >= FSP_STATUS_RESET_REQUIRED_COLD) && (Status <= FSP_STATUS_RESET_REQUIRED_8)) {
DEBUG((DEBUG_INFO, "FSP NotifyPhase ReadyToBoot requested reset 0x%x\n", Status));
CallFspWrapperResetSystem ((UINT32)Status);
}
if (Status != EFI_SUCCESS) {
DEBUG((DEBUG_ERROR, "FSP NotifyPhase ReadyToBoot failed, status: 0x%x\n", Status));
} else {
DEBUG((DEBUG_INFO, "FSP NotifyPhase ReadyToBoot Success.\n"));
}
Status = gBS->LocateProtocol (
&gAddPerfRecordProtocolGuid,
NULL,
(VOID**) &AddPerfRecordInterface
);
if (EFI_ERROR (Status)) {
DEBUG((DEBUG_INFO, "gAddPerfRecordProtocolGuid - Locate protocol failed\n"));
return;
} else {
Hob.Raw = GetHobList ();
if (Hob.Raw != NULL) {
Hob.Raw = GetNextGuidHob (&gFspHobGuid, Hob.Raw);
FspHobListPtr = GET_GUID_HOB_DATA(Hob.Raw);
AddPerfRecordInterface->AddPerformanceRecords((VOID *)(UINTN)(((UINT32)(UINTN)*FspHobListPtr) & 0xFFFFFFFF));
}
}
}
/**
This stage is notified just before the firmware/Preboot environment transfers
management of all system resources to the OS or next level execution environment.
@param Event Event whose notification function is being invoked.
@param Context Pointer to the notification function's context, which is
always zero in current implementation.
**/
VOID
EFIAPI
OnEndOfFirmware (
IN EFI_EVENT Event,
IN VOID *Context
)
{
NOTIFY_PHASE_PARAMS NotifyPhaseParams;
EFI_STATUS Status;
gBS->CloseEvent (Event);
NotifyPhaseParams.Phase = EnumInitPhaseEndOfFirmware;
PERF_START_EX(&gFspApiPerformanceGuid, "EventRec", NULL, 0, 0x2000);
Status = CallFspNotifyPhase (&NotifyPhaseParams);
PERF_END_EX(&gFspApiPerformanceGuid, "EventRec", NULL, 0, 0x207F);
//
// Reset the system if FSP API returned FSP_STATUS_RESET_REQUIRED status
//
if ((Status >= FSP_STATUS_RESET_REQUIRED_COLD) && (Status <= FSP_STATUS_RESET_REQUIRED_8)) {
DEBUG((DEBUG_INFO, "FSP NotifyPhase EndOfFirmware requested reset 0x%x\n", Status));
CallFspWrapperResetSystem ((UINT32)Status);
}
if (Status != EFI_SUCCESS) {
DEBUG((DEBUG_ERROR, "FSP NotifyPhase EndOfFirmware failed, status: 0x%x\n", Status));
} else {
DEBUG((DEBUG_INFO, "FSP NotifyPhase EndOfFirmware Success.\n"));
}
}
/**
Main entry for the FSP DXE module.
This routine registers two callbacks to call fsp's notifies.
@param[in] ImageHandle The firmware allocated handle for the EFI image.
@param[in] SystemTable A pointer to the EFI System Table.
@retval EFI_SUCCESS The entry point is executed successfully.
@retval other Some error occurs when executing this entry point.
**/
EFI_STATUS
EFIAPI
FspWrapperNotifyDxeEntryPoint (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
EFI_EVENT ReadyToBootEvent;
VOID *Registration;
EFI_EVENT ProtocolNotifyEvent;
//
// Load this driver's image to memory
//
Status = RelocateImageUnder4GIfNeeded (ImageHandle, SystemTable);
if (EFI_ERROR (Status)) {
return EFI_SUCCESS;
}
ProtocolNotifyEvent = EfiCreateProtocolNotifyEvent (
&gEfiPciEnumerationCompleteProtocolGuid,
TPL_CALLBACK,
OnPciEnumerationComplete,
NULL,
&Registration
);
ASSERT (ProtocolNotifyEvent != NULL);
Status = EfiCreateEventReadyToBootEx (
TPL_CALLBACK,
OnReadyToBoot,
NULL,
&ReadyToBootEvent
);
ASSERT_EFI_ERROR (Status);
Status = gBS->CreateEventEx (
EVT_NOTIFY_SIGNAL,
TPL_NOTIFY,
OnEndOfFirmware,
NULL,
&gEfiEventExitBootServicesGuid,
&mExitBootServicesEvent
);
ASSERT_EFI_ERROR (Status);
return EFI_SUCCESS;
}