/** @file
Status code driver for IA32/X64/EBC architecture.
Copyright (c) 2006, Intel Corporation
All rights reserved. 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 "DxeStatusCode.h"
//
// Event for Exit Boot Services Callback
//
STATIC EFI_EVENT mExitBootServicesEvent = NULL;
/**
Report status code to all supported device.
Calls into the workers which dispatches the platform specific
listeners.
@param Type Indicates the type of status code being reported.
The type EFI_STATUS_CODE_TYPE is defined in "Related Definitions" below.
@param Value Describes the current status of a hardware or software entity.
This includes information about the class and subclass that is used to classify the entity
as well as an operation. For progress codes, the operation is the current activity.
For error codes, it is the exception. For debug codes, it is not defined at this time.
Type EFI_STATUS_CODE_VALUE is defined in "Related Definitions" below.
Specific values are discussed in the Intel? Platform Innovation Framework for EFI Status Code Specification.
@param Instance The enumeration of a hardware or software entity within the system.
A system may contain multiple entities that match a class/subclass pairing.
The instance differentiates between them. An instance of 0 indicates that instance
information is unavailable, not meaningful, or not relevant. 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.
Type EFI_STATUS_CODE_DATA is defined in "Related Definitions" below.
The contents of this data type may have additional GUID-specific data. The standard GUIDs and
their associated data structures are defined in the Intel? Platform Innovation Framework for EFI Status Codes Specification.
@return Always return EFI_SUCCESS.
**/
EFI_STATUS
EFIAPI
ReportDispatcher (
IN EFI_STATUS_CODE_TYPE Type,
IN EFI_STATUS_CODE_VALUE Value,
IN UINT32 Instance,
IN EFI_GUID *CallerId OPTIONAL,
IN EFI_STATUS_CODE_DATA *Data OPTIONAL
);
//
// Declaration of status code protocol.
//
STATIC
EFI_STATUS_CODE_PROTOCOL mEfiStatusCodeProtocol = {
ReportDispatcher
};
//
// Delaration of DXE status code controller
//
DXE_STATUS_CODE_CONTROLLER gDxeStatusCode = {
//
// Initialize nest status as non nested.
//
0,
{NULL, NULL}
};
/**
Install the ReportStatusCode runtime service.
@param ImageHandle Image handle of the loaded driver
@param SystemTable Pointer to the System Table
@return The function always returns success.
**/
EFI_STATUS
DxeStatusCodeDriverEntry (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_HANDLE Handle = NULL;
EFI_STATUS Status;
//
// Dispatch initialization request to supported devices
//
InitializationDispatcherWorker ();
//
// Install Status Code Architectural Protocol implementation as defined in Tiano
// Architecture Specification.
//
Status = gBS->InstallMultipleProtocolInterfaces (
&Handle,
&gEfiStatusCodeRuntimeProtocolGuid,
&mEfiStatusCodeProtocol,
NULL
);
ASSERT_EFI_ERROR (Status);
Status = gBS->CreateEvent (
EVT_SIGNAL_EXIT_BOOT_SERVICES,
TPL_NOTIFY,
VirtualAddressChangeCallBack,
NULL,
&mExitBootServicesEvent
);
ASSERT_EFI_ERROR (Status);
return Status;
}
/**
Report status code to all supported device.
Calls into the workers which dispatches the platform specific
listeners.
@param CodeType Indicates the type of status code being reported.
The type EFI_STATUS_CODE_TYPE is defined in "Related Definitions" below.
@param Value Describes the current status of a hardware or software entity.
This includes information about the class and subclass that is used to classify the entity
as well as an operation. For progress codes, the operation is the current activity.
For error codes, it is the exception. For debug codes, it is not defined at this time.
Type EFI_STATUS_CODE_VALUE is defined in "Related Definitions" below.
Specific values are discussed in the Intel? Platform Innovation Framework for EFI Status Code Specification.
@param Instance The enumeration of a hardware or software entity within the system.
A system may contain multiple entities that match a class/subclass pairing.
The instance differentiates between them. An instance of 0 indicates that instance
information is unavailable, not meaningful, or not relevant. 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.
Type EFI_STATUS_CODE_DATA is defined in "Related Definitions" below.
The contents of this data type may have additional GUID-specific data. The standard GUIDs and
their associated data structures are defined in the Intel? Platform Innovation Framework for EFI Status Codes Specification.
@return Always return EFI_SUCCESS.
**/
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 (1 == InterlockedCompareExchange32 (&gDxeStatusCode.StatusCodeNestStatus, 0, 1)) {
return EFI_DEVICE_ERROR;
}
if (FeaturePcdGet (PcdStatusCodeUseEfiSerial) || FeaturePcdGet (PcdStatusCodeUseHardSerial)) {
SerialStatusCodeReportWorker (
CodeType,
Value,
Instance,
CallerId,
Data
);
}
if (FeaturePcdGet (PcdStatusCodeUseRuntimeMemory)) {
RtMemoryStatusCodeReportWorker (
gDxeStatusCode.RtMemoryStatusCodeTable[PHYSICAL_MODE],
CodeType,
Value,
Instance
);
}
if (FeaturePcdGet (PcdStatusCodeUseDataHub)) {
DataHubStatusCodeReportWorker (
CodeType,
Value,
Instance,
CallerId,
Data
);
}
if (FeaturePcdGet (PcdStatusCodeUseOEM)) {
OemHookStatusCodeReport (
CodeType,
Value,
Instance,
CallerId,
Data
);
}
//
// Restore the nest status of report
//
InterlockedCompareExchange32 (&gDxeStatusCode.StatusCodeNestStatus, 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 **) &gDxeStatusCode.RtMemoryStatusCodeTable[PHYSICAL_MODE]
);
}