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/** @file
Status code driver for IA32/X64/EBC architecture.
Copyright (c) 2006 - 2018, 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 "StatusCodeRuntimeDxe.h"
EFI_EVENT mVirtualAddressChangeEvent = NULL;
EFI_HANDLE mHandle = NULL;
//
// Declaration of status code protocol.
//
EFI_STATUS_CODE_PROTOCOL mEfiStatusCodeProtocol = {
ReportDispatcher
};
//
// Report operation nest status.
// If it is set, then the report operation has nested.
//
UINT32 mStatusCodeNestStatus = 0;
/**
Entry point of DXE Status Code Driver.
This function is the entry point of this DXE Status Code Driver.
It installs Status Code Runtime Protocol, 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
StatusCodeRuntimeDxeEntry (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
//
// Dispatch initialization request to supported devices
//
InitializationDispatcherWorker ();
//
// Install Status Code Runtime Protocol implementation as defined in PI Specification.
//
Status = gBS->InstallMultipleProtocolInterfaces (
&mHandle,
&gEfiStatusCodeRuntimeProtocolGuid,
&mEfiStatusCodeProtocol,
NULL
);
ASSERT_EFI_ERROR (Status);
Status = gBS->CreateEventEx (
EVT_NOTIFY_SIGNAL,
TPL_NOTIFY,
VirtualAddressChangeCallBack,
NULL,
&gEfiEventVirtualAddressChangeGuid,
&mVirtualAddressChangeEvent
);
ASSERT_EFI_ERROR (Status);
return EFI_SUCCESS;
}
/**
Report status code to all supported device.
This function implements EFI_STATUS_CODE_PROTOCOL.ReportStatusCode().
It calls into the workers which dispatches the platform specific listeners.
@param CodeType Indicates the type of status code being reported.
@param Value Describes the current status of a hardware or software entity.
This included information about the class and subclass that is used to
classify the entity as well as an operation.
@param Instance The enumeration of a hardware or software entity within
the system. Valid instance numbers start with 1.
@param CallerId This optional parameter may be used to identify the caller.
This parameter allows the status code driver to apply different rules to
different callers.
@param Data This optional parameter may be used to pass additional data.
@retval EFI_SUCCESS The function completed successfully
@retval EFI_DEVICE_ERROR The function should not be completed due to a device error.
**/
EFI_STATUS
EFIAPI
ReportDispatcher (
IN EFI_STATUS_CODE_TYPE CodeType,
IN EFI_STATUS_CODE_VALUE Value,
IN UINT32 Instance,
IN EFI_GUID *CallerId OPTIONAL,
IN EFI_STATUS_CODE_DATA *Data OPTIONAL
)
{
//
// Use atom operation to avoid the reentant of report.
// If current status is not zero, then the function is reentrancy.
//
if (InterlockedCompareExchange32 (&mStatusCodeNestStatus, 0, 1) == 1) {
return EFI_DEVICE_ERROR;
}
if (FeaturePcdGet (PcdStatusCodeUseSerial)) {
SerialStatusCodeReportWorker (
CodeType,
Value,
Instance,
CallerId,
Data
);
}
if (FeaturePcdGet (PcdStatusCodeUseMemory)) {
RtMemoryStatusCodeReportWorker (
CodeType,
Value,
Instance
);
}
if (FeaturePcdGet (PcdStatusCodeUseDataHub)) {
DataHubStatusCodeReportWorker (
CodeType,
Value,
Instance,
CallerId,
Data
);
}
if (FeaturePcdGet (PcdStatusCodeUseOEM)) {
//
// Call OEM hook status code library API to report status code to OEM device
//
OemHookStatusCodeReport (
CodeType,
Value,
Instance,
CallerId,
Data
);
}
//
// Restore the nest status of report
//
InterlockedCompareExchange32 (&mStatusCodeNestStatus, 1, 0);
return EFI_SUCCESS;
}
/**
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 enable UseDataHub, then initialize data hub 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);
}
if (FeaturePcdGet (PcdStatusCodeUseDataHub)) {
DataHubStatusCodeInitializeWorker ();
}
if (FeaturePcdGet (PcdStatusCodeUseOEM)) {
//
// Call OEM hook status code library API to initialize OEM device for status code.
//
Status = OemHookStatusCodeInitialize ();
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
);
}
if (FeaturePcdGet (PcdStatusCodeUseDataHub)) {
DataHubStatusCodeReportWorker (
Record[Index].CodeType,
Record[Index].Value,
Record[Index].Instance,
NULL,
NULL
);
}
if (FeaturePcdGet (PcdStatusCodeUseOEM)) {
//
// Call OEM hook status code library API to report status code to OEM device
//
OemHookStatusCodeReport (
Record[Index].CodeType,
Record[Index].Value,
Record[Index].Instance,
NULL,
NULL
);
}
}
}
}
}
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