mirror of https://github.com/acidanthera/audk.git
241 lines
8.6 KiB
C
241 lines
8.6 KiB
C
/** @file
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Status code driver for IA32/X64/EBC architecture.
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Copyright (c) 2006, Intel Corporation
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All rights reserved. This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include "DxeStatusCode.h"
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//
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// Event for Exit Boot Services Callback
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//
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STATIC EFI_EVENT mExitBootServicesEvent = NULL;
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/**
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Report status code to all supported device.
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Calls into the workers which dispatches the platform specific
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listeners.
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@param Type Indicates the type of status code being reported.
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The type EFI_STATUS_CODE_TYPE is defined in "Related Definitions" below.
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@param Value Describes the current status of a hardware or software entity.
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This includes information about the class and subclass that is used to classify the entity
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as well as an operation. For progress codes, the operation is the current activity.
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For error codes, it is the exception. For debug codes, it is not defined at this time.
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Type EFI_STATUS_CODE_VALUE is defined in "Related Definitions" below.
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Specific values are discussed in the Intel? Platform Innovation Framework for EFI Status Code Specification.
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@param Instance The enumeration of a hardware or software entity within the system.
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A system may contain multiple entities that match a class/subclass pairing.
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The instance differentiates between them. An instance of 0 indicates that instance
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information is unavailable, not meaningful, or not relevant. Valid instance numbers start with 1.
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@param CallerId This optional parameter may be used to identify the caller.
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This parameter allows the status code driver to apply different rules to different callers.
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@param Data This optional parameter may be used to pass additional data.
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Type EFI_STATUS_CODE_DATA is defined in "Related Definitions" below.
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The contents of this data type may have additional GUID-specific data. The standard GUIDs and
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their associated data structures are defined in the Intel? Platform Innovation Framework for EFI Status Codes Specification.
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@return Always return EFI_SUCCESS.
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**/
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EFI_STATUS
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EFIAPI
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ReportDispatcher (
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IN EFI_STATUS_CODE_TYPE Type,
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IN EFI_STATUS_CODE_VALUE Value,
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IN UINT32 Instance,
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IN EFI_GUID *CallerId OPTIONAL,
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IN EFI_STATUS_CODE_DATA *Data OPTIONAL
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);
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//
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// Declaration of status code protocol.
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//
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STATIC
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EFI_STATUS_CODE_PROTOCOL mEfiStatusCodeProtocol = {
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ReportDispatcher
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};
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//
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// Delaration of DXE status code controller
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//
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DXE_STATUS_CODE_CONTROLLER gDxeStatusCode = {
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//
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// Initialize nest status as non nested.
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//
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0,
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{NULL, NULL}
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};
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/**
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Install the ReportStatusCode runtime service.
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@param ImageHandle Image handle of the loaded driver
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@param SystemTable Pointer to the System Table
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@return The function always returns success.
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**/
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EFI_STATUS
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DxeStatusCodeDriverEntry (
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IN EFI_HANDLE ImageHandle,
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IN EFI_SYSTEM_TABLE *SystemTable
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)
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{
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EFI_HANDLE Handle = NULL;
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EFI_STATUS Status;
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//
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// Dispatch initialization request to supported devices
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//
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InitializationDispatcherWorker ();
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//
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// Install Status Code Architectural Protocol implementation as defined in Tiano
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// Architecture Specification.
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//
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Status = gBS->InstallMultipleProtocolInterfaces (
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&Handle,
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&gEfiStatusCodeRuntimeProtocolGuid,
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&mEfiStatusCodeProtocol,
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NULL
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);
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ASSERT_EFI_ERROR (Status);
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Status = gBS->CreateEvent (
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EVT_SIGNAL_EXIT_BOOT_SERVICES,
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TPL_NOTIFY,
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VirtualAddressChangeCallBack,
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NULL,
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&mExitBootServicesEvent
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);
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ASSERT_EFI_ERROR (Status);
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return Status;
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}
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/**
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Report status code to all supported device.
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Calls into the workers which dispatches the platform specific
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listeners.
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@param CodeType Indicates the type of status code being reported.
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The type EFI_STATUS_CODE_TYPE is defined in "Related Definitions" below.
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@param Value Describes the current status of a hardware or software entity.
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This includes information about the class and subclass that is used to classify the entity
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as well as an operation. For progress codes, the operation is the current activity.
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For error codes, it is the exception. For debug codes, it is not defined at this time.
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Type EFI_STATUS_CODE_VALUE is defined in "Related Definitions" below.
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Specific values are discussed in the Intel? Platform Innovation Framework for EFI Status Code Specification.
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@param Instance The enumeration of a hardware or software entity within the system.
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A system may contain multiple entities that match a class/subclass pairing.
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The instance differentiates between them. An instance of 0 indicates that instance
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information is unavailable, not meaningful, or not relevant. Valid instance numbers start with 1.
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@param CallerId This optional parameter may be used to identify the caller.
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This parameter allows the status code driver to apply different rules to different callers.
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@param Data This optional parameter may be used to pass additional data.
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Type EFI_STATUS_CODE_DATA is defined in "Related Definitions" below.
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The contents of this data type may have additional GUID-specific data. The standard GUIDs and
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their associated data structures are defined in the Intel? Platform Innovation Framework for EFI Status Codes Specification.
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@return Always return EFI_SUCCESS.
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**/
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EFI_STATUS
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EFIAPI
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ReportDispatcher (
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IN EFI_STATUS_CODE_TYPE CodeType,
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IN EFI_STATUS_CODE_VALUE Value,
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IN UINT32 Instance,
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IN EFI_GUID *CallerId OPTIONAL,
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IN EFI_STATUS_CODE_DATA *Data OPTIONAL
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)
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{
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//
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// Use atom operation to avoid the reentant of report.
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// If current status is not zero, then the function is reentrancy.
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//
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if (1 == InterlockedCompareExchange32 (&gDxeStatusCode.StatusCodeNestStatus, 0, 1)) {
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return EFI_DEVICE_ERROR;
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}
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if (FeaturePcdGet (PcdStatusCodeUseEfiSerial) || FeaturePcdGet (PcdStatusCodeUseHardSerial)) {
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SerialStatusCodeReportWorker (
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CodeType,
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Value,
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Instance,
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CallerId,
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Data
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);
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}
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if (FeaturePcdGet (PcdStatusCodeUseRuntimeMemory)) {
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RtMemoryStatusCodeReportWorker (
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gDxeStatusCode.RtMemoryStatusCodeTable[PHYSICAL_MODE],
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CodeType,
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Value,
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Instance
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);
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}
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if (FeaturePcdGet (PcdStatusCodeUseDataHub)) {
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DataHubStatusCodeReportWorker (
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CodeType,
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Value,
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Instance,
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CallerId,
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Data
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);
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}
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if (FeaturePcdGet (PcdStatusCodeUseOEM)) {
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OemHookStatusCodeReport (
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CodeType,
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Value,
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Instance,
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CallerId,
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Data
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);
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}
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//
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// Restore the nest status of report
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//
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InterlockedCompareExchange32 (&gDxeStatusCode.StatusCodeNestStatus, 1, 0);
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return EFI_SUCCESS;
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}
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/**
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Virtual address change notification call back. It converts global pointer
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to virtual address.
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@param Event Event whose notification function is being invoked.
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@param Context Pointer to the notification function's context, which is
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always zero in current implementation.
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**/
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VOID
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EFIAPI
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VirtualAddressChangeCallBack (
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IN EFI_EVENT Event,
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IN VOID *Context
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)
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{
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//
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// Convert memory status code table to virtual address;
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//
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EfiConvertPointer (
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0,
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(VOID **) &gDxeStatusCode.RtMemoryStatusCodeTable[PHYSICAL_MODE]
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);
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}
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