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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 - 2009, 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 "StatusCodeHandlerRuntimeDxe.h"
EFI_EVENT mVirtualAddressChangeEvent = NULL;
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 (FeaturePcdGet (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 (FeaturePcdGet (PcdStatusCodeUseSerial)) {
//
// Call Serial Port Lib API to initialize serial port.
//
Status = SerialPortInitialize ();
ASSERT_EFI_ERROR (Status);
}
if (FeaturePcdGet (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 (FeaturePcdGet (PcdStatusCodeUseSerial)) {
SerialStatusCodeReportWorker (
Record[Index].CodeType,
Record[Index].Value,
Record[Index].Instance,
NULL,
NULL
);
}
if (FeaturePcdGet (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 (FeaturePcdGet (PcdStatusCodeUseSerial)) {
mRscHandlerProtocol->Register (SerialStatusCodeReportWorker, TPL_HIGH_LEVEL);
}
if (FeaturePcdGet (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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