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/** @file
Status Code Handler Driver which produces general handlers and hook them
onto the DXE status code router.
Copyright (c) 2006 - 2020, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include "StatusCodeHandlerRuntimeDxe.h"
EFI_EVENT mVirtualAddressChangeEvent = NULL;
static EFI_EVENT mExitBootServicesEvent = NULL;
EFI_RSC_HANDLER_PROTOCOL *mRscHandlerProtocol = NULL;
/**
Unregister status code callback functions only available at boot time from
report status code router when exiting boot services.
@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
UnregisterBootTimeHandlers (
IN EFI_EVENT Event,
IN VOID *Context
)
{
if (PcdGetBool (PcdStatusCodeUseSerial)) {
mRscHandlerProtocol->Unregister (SerialStatusCodeReportWorker);
}
}
/**
Virtual address change notification call back. It converts global pointer
to virtual address.
@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
VirtualAddressChangeCallBack (
IN EFI_EVENT Event,
IN VOID *Context
)
{
//
// Convert memory status code table to virtual address;
//
EfiConvertPointer (
0,
(VOID **) &mRtMemoryStatusCodeTable
);
}
/**
Dispatch initialization request to sub status code devices based on
customized feature flags.
**/
VOID
InitializationDispatcherWorker (
VOID
)
{
EFI_PEI_HOB_POINTERS Hob;
EFI_STATUS Status;
MEMORY_STATUSCODE_PACKET_HEADER *PacketHeader;
MEMORY_STATUSCODE_RECORD *Record;
UINTN Index;
UINTN MaxRecordNumber;
//
// If enable UseSerial, then initialize serial port.
// if enable UseRuntimeMemory, then initialize runtime memory status code worker.
//
if (PcdGetBool (PcdStatusCodeUseSerial)) {
//
// Call Serial Port Lib API to initialize serial port.
//
Status = SerialPortInitialize ();
ASSERT_EFI_ERROR (Status);
}
if (PcdGetBool (PcdStatusCodeUseMemory)) {
Status = RtMemoryStatusCodeInitializeWorker ();
ASSERT_EFI_ERROR (Status);
}
//
// Replay Status code which saved in GUID'ed HOB to all supported devices.
//
if (FeaturePcdGet (PcdStatusCodeReplayIn)) {
//
// Journal GUID'ed HOBs to find all record entry, if found,
// then output record to support replay device.
//
Hob.Raw = GetFirstGuidHob (&gMemoryStatusCodeRecordGuid);
if (Hob.Raw != NULL) {
PacketHeader = (MEMORY_STATUSCODE_PACKET_HEADER *) GET_GUID_HOB_DATA (Hob.Guid);
Record = (MEMORY_STATUSCODE_RECORD *) (PacketHeader + 1);
MaxRecordNumber = (UINTN) PacketHeader->RecordIndex;
if (PacketHeader->PacketIndex > 0) {
//
// Record has been wrapped around. So, record number has arrived at max number.
//
MaxRecordNumber = (UINTN) PacketHeader->MaxRecordsNumber;
}
for (Index = 0; Index < MaxRecordNumber; Index++) {
//
// Dispatch records to devices based on feature flag.
//
if (PcdGetBool (PcdStatusCodeUseSerial)) {
SerialStatusCodeReportWorker (
Record[Index].CodeType,
Record[Index].Value,
Record[Index].Instance,
NULL,
NULL
);
}
if (PcdGetBool (PcdStatusCodeUseMemory)) {
RtMemoryStatusCodeReportWorker (
Record[Index].CodeType,
Record[Index].Value,
Record[Index].Instance,
NULL,
NULL
);
}
}
}
}
}
/**
Entry point of DXE Status Code Driver.
This function is the entry point of this DXE Status Code Driver.
It initializes registers status code handlers, and registers event for EVT_SIGNAL_VIRTUAL_ADDRESS_CHANGE.
@param ImageHandle The firmware allocated handle for the EFI image.
@param SystemTable A pointer to the EFI System Table.
@retval EFI_SUCCESS The entry point is executed successfully.
**/
EFI_STATUS
EFIAPI
StatusCodeHandlerRuntimeDxeEntry (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
Status = gBS->LocateProtocol (
&gEfiRscHandlerProtocolGuid,
NULL,
(VOID **) &mRscHandlerProtocol
);
ASSERT_EFI_ERROR (Status);
//
// Dispatch initialization request to supported devices
//
InitializationDispatcherWorker ();
if (PcdGetBool (PcdStatusCodeUseSerial)) {
mRscHandlerProtocol->Register (SerialStatusCodeReportWorker, TPL_HIGH_LEVEL);
}
if (PcdGetBool (PcdStatusCodeUseMemory)) {
mRscHandlerProtocol->Register (RtMemoryStatusCodeReportWorker, TPL_HIGH_LEVEL);
}
Status = gBS->CreateEventEx (
EVT_NOTIFY_SIGNAL,
TPL_NOTIFY,
UnregisterBootTimeHandlers,
NULL,
&gEfiEventExitBootServicesGuid,
&mExitBootServicesEvent
);
Status = gBS->CreateEventEx (
EVT_NOTIFY_SIGNAL,
TPL_NOTIFY,
VirtualAddressChangeCallBack,
NULL,
&gEfiEventVirtualAddressChangeGuid,
&mVirtualAddressChangeEvent
);
ASSERT_EFI_ERROR (Status);
return EFI_SUCCESS;
}
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