DecodeWheaRecord

A utility to decode Windows Hardware Error Architecture (WHEA) records.

• Overview
• Requirements
• Usage
• Support status
  • Errors
  • Events
• Technical details
  • Architecture
  • Error records
  • Event records
• Glossary
  • Buses
  • Memory
  • Microsoft
  • Processors
  • Specifications
  • Miscellaneous
• License

Overview

Windows Hardware Error Architecture provides the Windows infrastructure for hardware error reporting. First introduced with Windows Server 2008 and Windows Vista SP1, it has been part of every Windows release since.

While the the records WHEA emits can be seen through its event log channels, they are only viewable in their raw binary format which Windows has no support for decoding. This utility takes these Base64 encoded binary records and decodes them into a human-readable JSON representation.

Requirements

• A supported .NET runtime, either:
  • .NET Framework 4.7.2 (or newer)
    Built-in since Windows 10 1803 and Server 2019
  • .NET 8 (or newer)
    Install manually: Download and run the installer
    Install with WinGet: winget install Microsoft.DotNet.Runtime.8

Usage

WHEA errors and events are logged by the Microsoft-Windows-Kernel-WHEA provider to the following event log channels:

• Microsoft-Windows-Kernel-WHEA/Errors
• Microsoft-Windows-Kernel-WHEA/Operational

For the unfamiliar, you can find these event log channels in Event Viewer by expanding the Applications and Services Logs -> Microsoft -> Windows -> Kernel-WHEA tree.

To decode an event you need to retrieve the value from its RawData field (visible in the Details tab). Provide this value as the sole argument to the utility:

DecodeWheaRecord.exe 57684C67010000002200000000000000504349203100008002000000020000000100
{
"Header": {
"Signature": "WhLg",
"Version": 1,
"Length": 34,
"Type": "Informational",
"OwnerTag": "PCI",
"Id": "eDpcEnabled",
"Flags": "LogInternalEtw",
"PayloadLength": 2
},
"Entry": {
"eDPCEnabled": true,
"eDPCRecovEnabled": false
}
}

Support status

All errors and events supported by Windows up to Windows 11, version 24H2 and Windows Server 2025 are either fully or partially supported.

Errors

Name	Implemented?	GUID	WHEA structure	UEFI section	MSFT documentation
ARM Processor Error	Complete	e19e3d16-bc11-11e4-9caa-c2051d5d46b0	WHEA_ARM_PROCESSOR_ERROR_SECTION	N.2.4.4	Undocumented
ARM RAS Node Error	Complete	e3ebf4a2-df50-4708-b2d7-0b29ec2f7aa9	WHEA_ARM_RAS_NODE_SECTION	N/A	Undocumented
ARM SEA Exception	Complete	f5fe48a6-84ce-4c1e-aa64-20c9a53099f1	WHEA_SEA_SECTION	N/A	Partial
ARM SEI Exception	Complete	f2a4a152-9c6d-4020-aecf-7695b389251b	WHEA_SEI_SECTION	N/A	Partial
Error Recovery Information	Complete	c34832a1-02c3-4c52-a9f1-9f1d5d7723fc	WHEA_ERROR_RECOVERY_INFO_SECTION	N/A	Undocumented
Firmware Error Record Reference	Complete1	81212a96-09ed-4996-9471-8d729c8e69ed	WHEA_FIRMWARE_ERROR_RECORD_REFERENCE	N.2.10	Yes
Generic Error	Complete	e71254e8-c1b9-4940-ab76-909703a4320f	WHEA_GENERIC_ERROR	N/A	Yes
Generic Processor Error	Complete	9876ccad-47b4-4bdb-b65e-16f193c4f3db	WHEA_PROCESSOR_GENERIC_ERROR_SECTION	N.2.4.1	Yes
Hardware Error Packet (v1)	Partial	e71254e9-c1b9-4940-ab76-909703a4320f	WHEA_ERROR_PACKET_V1	N/A	Yes
Hardware Error Packet (v2)	Partial	e71254e9-c1b9-4940-ab76-909703a4320f	WHEA_ERROR_PACKET_V2	N/A	Partial
IA32 / AMD64 Machine Check Error	Partial	8a1e1d01-42f9-4557-9c33-565e5cc3f7e8	WHEA_XPF_MCA_SECTION	N/A	Partial
IA32 / AMD64 Processor Error	Complete	dc3ea0b0-a144-4797-b95b-53fa242b6e1d	WHEA_XPF_PROCESSOR_ERROR_SECTION	N.2.4.2	Yes
Memory Correctable Error Summary	Complete	0e36c93e-ca15-4a83-ba8a-cbe80f7f0017	WHEA_MEMORY_CORRECTABLE_ERROR_SECTION	N/A	Partial
Memory Error	Complete	a5bc1114-6f64-4ede-b863-3e83ed7c83b1	WHEA_MEMORY_ERROR_SECTION	N.2.5	Yes
Memory Error (Intel extension)	Complete	e16edb28-6113-4263-a41d-e53f8de78751	WHEA_MEMORY_ERROR_EXT_SECTION_INTEL	N/A	Undocumented
MSR Dump	Partial	1c15b445-9b06-4667-ac25-33c056b88803	WHEA_MSR_DUMP_SECTION	N/A	Partial
NMI Error	Complete	e71254e7-c1b9-4940-ab76-909703a4320f	WHEA_NMI_ERROR_SECTION	N/A	Yes
PCI / PCI-X Bus Error	Complete	c5753963-3b84-4095-bf78-eddad3f9c9dd	WHEA_PCIXBUS_ERROR_SECTION	N.2.8	Yes
PCI / PCI-X Device Error	Complete	eb5e4685-ca66-4769-b6a2-26068b001326	WHEA_PCIXDEVICE_ERROR_SECTION	M.2.9	Yes
PCI Express DPC Capability	Complete	ec49534b-30e7-4358-972f-eca6958fae3b	PCI_EXPRESS_DPC_CAPABILITY	N/A	Partial
PCI Express Error	Complete	d995e954-bbc1-430f-ad91-b44dcb3c6f35	WHEA_PCIEXPRESS_ERROR_SECTION	N.2.7	Yes
PCI Recovery	Complete	dd060800-f6e1-4204-ac27-c4bca9568402	WHEA_PCI_RECOVERY_SECTION	N/A	Partial
PCIe Correctable Error Summary	Partial	e96eca99-53e2-4f52-9be7-d2dbe9508ed0	WHEA_PCIE_CORRECTABLE_ERROR_SECTION	N/A	Partial
Persistent Memory Error	Partial	81687003-dbfd-4728-9ffd-f0904f97597d	WHEA_PMEM_ERROR_SECTION	N/A	Partial
Project Mu Telemetry	Complete	85183a8b-9c41-429c-939c-5c3c087ca280	MU_TELEMETRY_SECTION	N/A	Undocumented

1. The Firmware Error Record Reference error typically includes additional binary data for which it acts as an encapsulating record. The format of this binary data is not defined in the UEFI specification, and both the source of the data and its format is effectively arbitrary, though typically it's from the CPU or the platform firmware. When present this utility will output this additional data in hexadecimal, but it cannot decode it as the structure of the data is not known.

The following error section types are defined in the UEFI specification but are not implemented by Windows and so not supported by this utility. They are listed here for completeness:

Name	GUID	UEFI section
AMD IOMMU Specific DMAr Error	036f84e1-7f37-428c-a79e-575fdfaa84ec	N.2.11.3
CCIX PER Log Error	91335ef6-ebfb-4478-a6a6-88b728cf75d7	N.2.12
CXL Protocol Error	80b9efb4-52b5-4de3-a777-68784b771048	N.2.13
DMAr Generic Error	5b51fef7-c79d-4434-8f1b-aa62de3e2c64	N.2.11.1
FRU Memory Poison	5e4706c1-5356-48c6-930b-52f2120a4458	N.2.15
IA64 Processor Error	e429faf1-3cb7-11d4-bca7-0080c73c8881	N.2.4.3
Intel VT-d Specific DMAr Error	71761d37-32b2-45cd-a7d0-b0fedd93e8cf	N.2.11.2
Memory Error 2	61ec04fc-48e6-d813-25c9-8daa44750b12	N.2.6

Events

Entry ID	Symbolic name	Implemented?	WHEA structure	Notes
0x80000001	CmcPollingTimeout	Complete	WHEAP_CMC_POLLING_TIMEOUT_EVENT
0x80000002	WheaInit	Complete	WHEAP_INIT_EVENT
0x80000003	CmcSwitchToPolling	Complete	WHEAP_CMC_SWITCH_TO_POLLING_EVENT	Empty
0x80000004	DroppedCorrectedError	Complete	WHEAP_DROPPED_CORRECTED_ERROR_EVENT
0x80000005	StartedReportHwError	Complete	WHEAP_STARTED_REPORT_HW_ERROR	SEL
0x80000006	PFAMemoryOfflined	Complete	WHEAP_PFA_MEMORY_OFFLINED
0x80000007	PFAMemoryRemoveMonitor	Complete	WHEAP_PFA_MEMORY_REMOVE_MONITOR
0x80000008	PFAMemoryPolicy	Complete	WHEAP_PFA_MEMORY_POLICY
0x80000009	PshedInjectError	Complete	WHEAP_PSHED_INJECT_ERROR
0x8000000a	OscCapabilities	Complete	WHEAP_OSC_IMPLEMENTED
0x8000000b	PshedPluginRegister	Complete	WHEAP_PSHED_PLUGIN_REGISTER
0x8000000c	AddRemoveErrorSource	Complete	WHEAP_ADD_REMOVE_ERROR_SOURCE_EVENT
0x8000000d	WorkQueueItem	Unsupported	Unknown
0x8000000e	AttemptErrorRecovery	Complete	WHEAP_ATTEMPT_RECOVERY_EVENT
0x8000000f	McaFoundErrorInBank	Partial	WHEAP_FOUND_ERROR_IN_BANK_EVENT
0x80000010	McaStuckErrorCheck	Complete	WHEAP_STUCK_ERROR_EVENT
0x80000011	McaErrorCleared	Complete	WHEAP_ERROR_CLEARED_EVENT
0x80000012	ClearedPoison	Complete	WHEAP_CLEARED_POISON_EVENT
0x80000013	ProcessEINJ	Complete	WHEAP_PROCESS_EINJ_EVENT
0x80000014	ProcessHEST	Complete	WHEAP_PROCESS_HEST_EVENT
0x80000015	CreateGenericRecord	Complete	WHEAP_CREATE_GENERIC_RECORD_EVENT
0x80000016	ErrorRecord	Complete	WHEAP_ERROR_RECORD_EVENT
0x80000017	ErrorRecordLimit	Unsupported	Unknown
0x80000018	AerNotGrantedToOs	Complete	WHEAP_AER_NOT_GRANTED_TO_OS	Empty
0x80000019	ErrSrcArrayInvalid	Complete	WHEAP_ERR_SRC_ARRAY_INVALID_EVENT
0x8000001a	AcpiTimeOut	Complete	WHEAP_ACPI_TIMEOUT_EVENT
0x8000001b	CmciRestart	Complete	WHEAP_CMCI_RESTART_EVENT
0x8000001c	CmciFinalRestart	Complete	WHEAP_CMCI_RESTART_EVENT
0x8000001d	EtwOverFlow	Complete	WHEA_ETW_OVERFLOW_EVENT
0x8000001e	AzccRootBusSearchErr	Complete	WHEA_AZCC_ROOT_BUS_ERR_EVENT
0x8000001f	AzccRootBusList	Complete	WHEA_AZCC_ROOT_BUS_LIST_EVENT
0x80000020	ErrSrcInvalid	Complete	WHEAP_ERR_SRC_INVALID_EVENT
0x80000021	GenericErrMemMap	Complete	WHEAP_GENERIC_ERR_MEM_MAP_EVENT
0x80000022	PshedCallbackCollision	Complete	WHEAP_PSHED_PLUGIN_CALLBACK_COLLISION
0x80000023	SELBugCheckProgress	Complete	WHEA_SEL_BUGCHECK_PROGRESS	SEL
0x80000024	PshedPluginLoad	Complete	WHEA_PSHED_PLUGIN_LOAD_EVENT
0x80000025	PshedPluginUnload	Complete	WHEA_PSHED_PLUGIN_UNLOAD_EVENT
0x80000026	PshedPluginSupported	Complete	WHEA_PSHED_PLUGIN_PLATFORM_SUPPORT_EVENT
0x80000027	DeviceDriver	Unsupported	Unknown
0x80000028	CmciImplPresent	Complete	WHEAP_CMCI_IMPLEMENTED_EVENT
0x80000029	CmciInitError	Complete	WHEAP_CMCI_INITERR_EVENT
0x8000002a	SELBugCheckRecovery	Complete	WHEA_SEL_BUGCHECK_RECOVERY_STATUS_MULTIPLE_BUGCHECK_EVENT	SEL
0x8000002a	SELBugCheckRecovery	Complete	WHEA_SEL_BUGCHECK_RECOVERY_STATUS_PHASE1_EVENT	SEL
0x8000002a	SELBugCheckRecovery	Complete	WHEA_SEL_BUGCHECK_RECOVERY_STATUS_PHASE2_EVENT	SEL
0x8000002a	SELBugCheckRecovery	Complete	WHEA_SEL_BUGCHECK_RECOVERY_STATUS_START_EVENT	SEL
0x8000002b	DrvErrSrcInvalid	Complete	WHEAP_DEVICE_DRV_EVENT	SEL
0x8000002c	DrvHandleBusy	Complete	WHEAP_DEVICE_DRV_EVENT	SEL
0x8000002d	WheaHeartbeat	Complete	WHEA_PSHED_PLUGIN_HEARTBEAT	Empty
0x8000002e	AzccRootBusPoisonSet	Complete	WHEA_AZCC_SET_POISON_EVENT
0x8000002f	SELBugCheckInfo	Unsupported	Unknown
0x80000030	ErrDimmInfoMismatch	Complete	WHEA_PSHED_PLUGIN_DIMM_MISMATCH
0x80000031	eDpcEnabled	Complete	WHEAP_EDPC_ENABLED_EVENT
0x80000032	PageOfflineDone	Complete	WHEA_OFFLINE_DONE_EVENT
0x80000033	PageOfflinePendMax	Complete	WHEAP_OFFLINE_PENDING_MAX	Empty
0x80000034	BadPageLimitReached	Complete	WHEAP_BAD_PAGE_LIMIT_REACHED	Empty
0x80000035	SrarDetail	Partial	WHEA_SRAR_DETAIL_EVENT
0x80000036	EarlyError	Complete	WHEAP_EARLY_ERROR	Empty
0x80000037	PcieOverrideInfo	Partial	WHEAP_PCIE_OVERRIDE_INFO
0x80000038	ReadPcieOverridesErr	Complete	WHEAP_PCIE_READ_OVERRIDES_ERR
0x80000039	PcieConfigInfo	Complete	WHEAP_PCIE_CONFIG_INFO
0x80000040	PcieSummaryFailed	Complete	WHEA_THROTTLE_PCIE_ADD_EVENT
0x80000041	ThrottleRegCorrupt	Complete	WHEA_THROTTLE_REGISTRY_CORRUPT_EVENT
0x80000042	ThrottleAddErrSrcFailed	Complete	WHEA_THROTTLE_ADD_ERR_SRC_FAILED_EVENT	Empty
0x80000043	ThrottleRegDataIgnored	Complete	WHEA_THROTTLE_REG_DATA_IGNORED_EVENT
0x80000044	EnableKeyNotifFailed	Complete	WHEA_PSHED_PLUGIN_ENABLE_NOTIFY_FAILED_EVENT
0x80000045	KeyNotificationFailed	Complete	WHEA_REGISTER_KEY_NOTIFICATION_FAILED_EVENT	Empty
0x80000046	PcieRemoveDevice	Complete	WHEA_THROTTLE_PCIE_REMOVE_EVENT
0x80000047	PcieAddDevice	Complete	WHEA_THROTTLE_PCIE_ADD_EVENT
0x80000048	PcieSpuriousErrSource	Complete	WHEAP_SPURIOUS_AER_EVENT
0x80000049	MemoryAddDevice	Complete	WHEA_THROTTLE_MEMORY_ADD_OR_REMOVE_EVENT
0x8000004a	MemoryRemoveDevice	Complete	WHEA_THROTTLE_MEMORY_ADD_OR_REMOVE_EVENT
0x8000004b	MemorySummaryFailed	Complete	WHEA_MEMORY_THROTTLE_SUMMARY_FAILED_EVENT
0x8000004c	PcieDpcError	Complete	WHEAP_DPC_ERROR_EVENT
0x8000004d	CpuBusesInitFailed	Complete	WHEA_PSHED_PI_CPU_BUSES_INIT_FAILED_EVENT
0x8000004e	PshedPluginInitFailed	Complete	WHEA_PSHED_PLUGIN_INIT_FAILED_EVENT
0x8000004f	FailedAddToDefectList	Complete	WHEA_FAILED_ADD_DEFECT_LIST_EVENT	Empty
0x80000050	DefectListFull	Complete	WHEAP_PLUGIN_DEFECT_LIST_FULL_EVENT	Empty
0x80000051	DefectListUEFIVarFailed	Complete	WHEAP_PLUGIN_DEFECT_LIST_UEFI_VAR_FAILED	Empty
0x80000052	DefectListCorrupt	Complete	WHEAP_PLUGIN_DEFECT_LIST_CORRUPT	Empty
0x80000053	BadHestNotifyData	Complete	WHEAP_BAD_HEST_NOTIFY_DATA_EVENT
0x80000054	RowFailure	Complete	WHEAP_ROW_FAILURE_EVENT
0x80000055	SrasTableNotFound	Complete	WHEA_SRAS_TABLE_NOT_FOUND	Empty
0x80000056	SrasTableError	Complete	WHEA_SRAS_TABLE_ERROR	Empty
0x80000057	SrasTableEntries	Partial	WHEA_SRAS_TABLE_ENTRIES_EVENT
0x80000058	PFANotifyCallbackAction	Complete	WHEAP_PFA_MEMORY_OFFLINED_NOTIFY_CALLBACK_ACTION
0x80000059	SELBugCheckCpusQuiesced	Unsupported	Unknown
0x8000005a	PshedPiCpuid	Complete	WHEA_PSHED_PI_CPUID
0x8000005b	SrasTableBadData	Complete	WHEAP_SRAS_TABLE_BAD_DATA	Empty
0x8000005c	DriFsStatus	Unsupported	Unknown
0x80000060	CpusFrozen	Complete	WHEAP_BUGCHECK_CPUS_FROZEN_EVENT	Empty, SEL
0x80000061	CpusFrozenNoCrashDump	Unsupported	Unknown
0x80000062	RegNotifyPolicyChange	Complete	WHEA_REGNOTIFY_POLICY_CHANGE_EVENT
0x80000063	RegError	Complete	WHEA_REGISTRY_ERROR_EVENT
0x80000064	RowOfflineEvent	Complete	WHEAP_ROW_OFFLINE_EVENT
0x80000065	BitOfflineEvent	Complete	WHEAP_BIT_OFFLINE_EVENT
0x80000066	BadGasFields	Complete	WHEA_GAS_ERROR_EVENT
0x80000067	CrashDumpError	Complete	WHEA_CRASHDUMP_EVENT_LOG_ENTRY_WITH_STATUS	SEL
0x80000068	CrashDumpCheckpoint	Unsupported	Unknown
0x80000069	CrashDumpProgressPercent	Complete	WHEA_CRASHDUMP_EVENT_LOG_ENTRY_ULONG1	SEL
0x8000006a	PreviousCrashBugCheckProgress	Unsupported	Unknown
0x8000006b	SELBugCheckStackDump	Complete	WHEA_SEL_RAW_EVENT	SEL
0x8000006c	PciePromotedAerErr	Complete	WHEAP_PROMOTED_AER_ERROR_EVENT
0x80040010	PshedPiTraceLog	Complete	WHEA_PSHED_PI_TRACE_EVENT

Notes:

• Empty means the event has no payload data; i.e. they consist only of an event log entry header.
• SEL means the event is logged to the System Event Log of the BMC via IPMI. It's possible these events are later read back from the SEL and inserted into the Windows Event Log when the system returns to a "healthy" state, but I haven't verified if this is the case.

Technical details

Architecture

The functionality that comprises WHEA is implemented across several system components:

• Windows NT kernel (ntoskrnl.exe)
  WHEA itself is implemented directly in the Windows NT kernel. All of the kernel-mode WHEA APIs and associated functionality are a part of the main kernel binary.
• Platform-specific Hardware Error Driver (PSHED) (pshed.dll)
  The PSHED ships with Windows and is implemented as a kernel-mode driver with the role of abstracting the platform's hardware error reporting facilities. It is analogous to the Hardware Abstraction Layer (HAL) but for functionality specific to WHEA.
• PSHED plug-ins
  For supporting additional hardware error reporting functionality present in a platform which is not handled by the built-in PSHED, 3rd-parties can provide a PSHED plug-in. A PSHED plug-in is a kernel-mode driver which registers with PSHED, providing a set of callback functions to expose the additional platform hardware error reporting capabilities. In practice, this class of driver appears to be quite rare(?).
• Hardware drivers
  WHEA exposes a public API which drivers can integrate with to report hardware errors and where possible recover from them. Several built-in Windows drivers integrate with WHEA, for example, the PCI bus driver (pci.sys).

Error records

Error records take the form of Common Platform Error Records (CPER) as defined in the Unified Extensible Firmware Interface (UEFI) specification. These records consist of three parts:

• Header
  An initial error record header, the structure of which is defined in the UEFI specification.
• Section Descriptor
  One or more error record section descriptors, the structure of which is defined in the UEFI specification. Each section descriptor maps to an error record section.
• Section
  One or more error record sections. Each error record section has an associated error record section descriptor which, among other things, defines the type of error section.

Error sections have their own unique binary format as informed by the section type, specified as a GUID, in the corresponding section descriptor. The UEFI specification defines several standard error section types (e.g. generic processor error, memory error), but 3rd-parties are free to define their own sections.

In terms of the data structure layout, the header always comes first, then the section descriptors, and finally the sections. There can be unused space between the section descriptors and the sections, and at the end of the last section, to facilitate adding additional section descriptors and sections to an existing allocation.

Event records

Event records are purely a WHEA concept; they are not defined in the UEFI specification. While there are many more event record types defined than error record types, they are generally simpler to decode. Most event records have a simple structure containing a few fields that are primitive types. In contrast, many error records have a complex format with multiple embedded structures which in turn have many fields.

Glossary

Buses

Types

• PCI
  Peripheral Component Interconnect
• PCI-X
  PCI eXtended
• PCIe
  PCI Express

PCIe

• AER
  Advanced Error Reporting
• DPC
  Downstream Port Containment
• eDPC
  Enhanced Downstream Port Containment

Memory

• DIMM
  Dual In-Line Memory Module
• ECC
  Error Correction Code
• PFN
  Page Frame Number
• PMem
  Persistent Memory

Microsoft

• ETW
  Event Tracing for Windows
• IRQL
  Interrupt Request Level
• LLHEH
  Low-Level Hardware Error Handler
• PFA
  Predictive Failure Analysis
• PSHED
  Platform-Specific Hardware Error Driver
• WHEA
  Windows Hardware Error Architecture

Processors

Generic

• IP
  Instruction Pointer
• MAE
  Micro-Architecture Error
• MMIO
  Memory-mapped I/O
• TLB
  Translation Lookaside Buffer

Architectures

• IA32
  Intel Architecture, 32-bit
• IA64
  Intel Architecture, 64-bit (Itanium)
• IPF
  Itanium Platform
• XPF
  x86 Platform

Arm

• GIC
  Generic Interrupt Controller
• PSCI
  Power State Coordination Interface
• SMMU
  System Memory Management Unit
• SEA
  Synchronous External Abort
• SEI
  SError Interrupt

IA-32 (x86)

• APIC
  Advanced Programmable Interrupt Controller
• CMC
  Corrected Machine Check
• CMCI
  Corrected Machine Check Interrupt
• MCA
  Machine Check Architecture
• MCE
  Machine Check Exception
• MCI
  Machine Check Interrupt
• MSR
  Model-Specific Register
• SRAR
  Software Recoverable Action Required

IA-64 (Itanium)

• CPE
  Corrected Platform Error
• MCA
  Machine Check Abort
• SAL
  System Abstraction Layer

Specifications

• ACPI
  Advanced Configuration and Power Interface
• IPMI
  Intelligent Platform Management Interface
• SDEI
  Software Delegated Exception Interface
• UEFI
  Unified Extensible Firmware Interface

ACPI

• AEST
  Arm Error Source Table
• EINJ
  Error Injection table
• GAS
  Generic Address Structure
• GHES
  Generic Hardware Error Source
• GSIV
  Global System Interrupt Vector
• HEST
  Hardware Error Source Table
• NFIT
  NVDIMM Firmware Interface Table
• OSC
  Operating System Capabilities
• SCI
  Service Control Interrupt
• SRAS
  Static Resource Allocation Structure

IPMI

• SEL
  System Event Log

UEFI

• CPER
  Common Platform Error Record
• PRM
  Platform Runtime Mechanism

Miscellaneous

• BMC
  Baseboard Management Controller
• CCIX
  Cache Coherent Interconnect for Accelerators
• CXL
  Compute Express Link
• DMA
  Direct Memory Access
• DMAr
  DMA remapping
• FRU
  Field Replaceable Unit
• GPIO
  General Purpose Input/Output
• IOMMU
  Input/Output Memory Management Unit
• NMI
  Non-Maskable Interrupt
• OEM
  Original Equipment Manufacturer
• RAS
  Reliability, Availability, and Serviceability
• SOC
  System on Chip

License

All content is licensed under the terms of The MIT License.