qemu/qapi/cxl.json

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# -*- Mode: Python -*-
# vim: filetype=python
##
# = CXL devices
##
##
# @CxlEventLog:
#
# CXL has a number of separate event logs for different types of
# events. Each such event log is handled and signaled independently.
#
# @informational: Information Event Log
#
# @warning: Warning Event Log
#
# @failure: Failure Event Log
#
# @fatal: Fatal Event Log
#
# Since: 8.1
##
{ 'enum': 'CxlEventLog',
'data': ['informational',
'warning',
'failure',
'fatal']
}
##
# @cxl-inject-general-media-event:
#
# Inject an event record for a General Media Event (CXL r3.0
# 8.2.9.2.1.1). This event type is reported via one of the event logs
# specified via the log parameter.
#
# @path: CXL type 3 device canonical QOM path
#
# @log: event log to add the event to
#
# @flags: Event Record Flags. See CXL r3.0 Table 8-42 Common Event
# Record Format, Event Record Flags for subfield definitions.
#
# @dpa: Device Physical Address (relative to @path device). Note
# lower bits include some flags. See CXL r3.0 Table 8-43 General
# Media Event Record, Physical Address.
#
# @descriptor: Memory Event Descriptor with additional memory event
# information. See CXL r3.0 Table 8-43 General Media Event
# Record, Memory Event Descriptor for bit definitions.
#
# @type: Type of memory event that occurred. See CXL r3.0 Table 8-43
# General Media Event Record, Memory Event Type for possible
# values.
#
# @transaction-type: Type of first transaction that caused the event
# to occur. See CXL r3.0 Table 8-43 General Media Event Record,
# Transaction Type for possible values.
#
# @channel: The channel of the memory event location. A channel is an
# interface that can be independently accessed for a transaction.
#
# @rank: The rank of the memory event location. A rank is a set of
# memory devices on a channel that together execute a transaction.
#
# @device: Bitmask that represents all devices in the rank associated
# with the memory event location.
#
# @component-id: Device specific component identifier for the event.
# May describe a field replaceable sub-component of the device.
#
# Since: 8.1
##
{ 'command': 'cxl-inject-general-media-event',
'data': { 'path': 'str', 'log': 'CxlEventLog', 'flags': 'uint8',
'dpa': 'uint64', 'descriptor': 'uint8',
'type': 'uint8', 'transaction-type': 'uint8',
'*channel': 'uint8', '*rank': 'uint8',
'*device': 'uint32', '*component-id': 'str' } }
##
# @cxl-inject-dram-event:
#
# Inject an event record for a DRAM Event (CXL r3.0 8.2.9.2.1.2).
# This event type is reported via one of the event logs specified via
# the log parameter.
#
# @path: CXL type 3 device canonical QOM path
#
# @log: Event log to add the event to
#
# @flags: Event Record Flags. See CXL r3.0 Table 8-42 Common Event
# Record Format, Event Record Flags for subfield definitions.
#
# @dpa: Device Physical Address (relative to @path device). Note
# lower bits include some flags. See CXL r3.0 Table 8-44 DRAM
# Event Record, Physical Address.
#
# @descriptor: Memory Event Descriptor with additional memory event
# information. See CXL r3.0 Table 8-44 DRAM Event Record, Memory
# Event Descriptor for bit definitions.
#
# @type: Type of memory event that occurred. See CXL r3.0 Table 8-44
# DRAM Event Record, Memory Event Type for possible values.
#
# @transaction-type: Type of first transaction that caused the event
# to occur. See CXL r3.0 Table 8-44 DRAM Event Record,
# Transaction Type for possible values.
#
# @channel: The channel of the memory event location. A channel is an
# interface that can be independently accessed for a transaction.
#
# @rank: The rank of the memory event location. A rank is a set of
# memory devices on a channel that together execute a transaction.
#
# @nibble-mask: Identifies one or more nibbles that the error affects
#
# @bank-group: Bank group of the memory event location, incorporating
# a number of Banks.
#
# @bank: Bank of the memory event location. A single bank is accessed
# per read or write of the memory.
#
# @row: Row address within the DRAM.
#
# @column: Column address within the DRAM.
#
# @correction-mask: Bits within each nibble. Used in order of bits
# set in the nibble-mask. Up to 4 nibbles may be covered.
#
# Since: 8.1
##
{ 'command': 'cxl-inject-dram-event',
'data': { 'path': 'str', 'log': 'CxlEventLog', 'flags': 'uint8',
'dpa': 'uint64', 'descriptor': 'uint8',
'type': 'uint8', 'transaction-type': 'uint8',
'*channel': 'uint8', '*rank': 'uint8', '*nibble-mask': 'uint32',
'*bank-group': 'uint8', '*bank': 'uint8', '*row': 'uint32',
'*column': 'uint16', '*correction-mask': [ 'uint64' ]
}}
##
# @cxl-inject-memory-module-event:
#
# Inject an event record for a Memory Module Event (CXL r3.0
# 8.2.9.2.1.3). This event includes a copy of the Device Health info
# at the time of the event.
#
# @path: CXL type 3 device canonical QOM path
#
# @log: Event Log to add the event to
#
# @flags: Event Record Flags. See CXL r3.0 Table 8-42 Common Event
# Record Format, Event Record Flags for subfield definitions.
#
# @type: Device Event Type. See CXL r3.0 Table 8-45 Memory Module
# Event Record for bit definitions for bit definiions.
#
# @health-status: Overall health summary bitmap. See CXL r3.0 Table
# 8-100 Get Health Info Output Payload, Health Status for bit
# definitions.
#
# @media-status: Overall media health summary. See CXL r3.0 Table
# 8-100 Get Health Info Output Payload, Media Status for bit
# definitions.
#
# @additional-status: See CXL r3.0 Table 8-100 Get Health Info Output
# Payload, Additional Status for subfield definitions.
#
# @life-used: Percentage (0-100) of factory expected life span.
#
# @temperature: Device temperature in degrees Celsius.
#
# @dirty-shutdown-count: Number of times the device has been unable to
# determine whether data loss may have occurred.
#
# @corrected-volatile-error-count: Total number of correctable errors
# in volatile memory.
#
# @corrected-persistent-error-count: Total number of correctable
# errors in persistent memory
#
# Since: 8.1
##
{ 'command': 'cxl-inject-memory-module-event',
'data': { 'path': 'str', 'log': 'CxlEventLog', 'flags' : 'uint8',
'type': 'uint8', 'health-status': 'uint8',
'media-status': 'uint8', 'additional-status': 'uint8',
'life-used': 'uint8', 'temperature' : 'int16',
'dirty-shutdown-count': 'uint32',
'corrected-volatile-error-count': 'uint32',
'corrected-persistent-error-count': 'uint32'
}}
##
# @cxl-inject-poison:
#
# Poison records indicate that a CXL memory device knows that a
# particular memory region may be corrupted. This may be because of
# locally detected errors (e.g. ECC failure) or poisoned writes
# received from other components in the system. This injection
# mechanism enables testing of the OS handling of poison records which
# may be queried via the CXL mailbox.
#
# @path: CXL type 3 device canonical QOM path
#
# @start: Start address; must be 64 byte aligned.
#
# @length: Length of poison to inject; must be a multiple of 64 bytes.
#
# Since: 8.1
##
{ 'command': 'cxl-inject-poison',
'data': { 'path': 'str', 'start': 'uint64', 'length': 'size' }}
##
# @CxlUncorErrorType:
#
# Type of uncorrectable CXL error to inject. These errors are
# reported via an AER uncorrectable internal error with additional
# information logged at the CXL device.
#
# @cache-data-parity: Data error such as data parity or data ECC error
# CXL.cache
#
# @cache-address-parity: Address parity or other errors associated
# with the address field on CXL.cache
#
# @cache-be-parity: Byte enable parity or other byte enable errors on
# CXL.cache
#
# @cache-data-ecc: ECC error on CXL.cache
#
# @mem-data-parity: Data error such as data parity or data ECC error
# on CXL.mem
#
# @mem-address-parity: Address parity or other errors associated with
# the address field on CXL.mem
#
# @mem-be-parity: Byte enable parity or other byte enable errors on
# CXL.mem.
#
# @mem-data-ecc: Data ECC error on CXL.mem.
#
# @reinit-threshold: REINIT threshold hit.
#
# @rsvd-encoding: Received unrecognized encoding.
#
# @poison-received: Received poison from the peer.
#
# @receiver-overflow: Buffer overflows (first 3 bits of header log
# indicate which)
#
# @internal: Component specific error
#
# @cxl-ide-tx: Integrity and data encryption tx error.
#
# @cxl-ide-rx: Integrity and data encryption rx error.
#
# Since: 8.0
##
{ 'enum': 'CxlUncorErrorType',
'data': ['cache-data-parity',
'cache-address-parity',
'cache-be-parity',
'cache-data-ecc',
'mem-data-parity',
'mem-address-parity',
'mem-be-parity',
'mem-data-ecc',
'reinit-threshold',
'rsvd-encoding',
'poison-received',
'receiver-overflow',
'internal',
'cxl-ide-tx',
'cxl-ide-rx'
]
}
##
# @CXLUncorErrorRecord:
#
# Record of a single error including header log.
#
# @type: Type of error
#
# @header: 16 DWORD of header.
#
# Since: 8.0
##
{ 'struct': 'CXLUncorErrorRecord',
'data': {
'type': 'CxlUncorErrorType',
'header': [ 'uint32' ]
}
}
##
# @cxl-inject-uncorrectable-errors:
#
# Command to allow injection of multiple errors in one go. This
# allows testing of multiple header log handling in the OS.
#
# @path: CXL Type 3 device canonical QOM path
#
# @errors: Errors to inject
#
# Since: 8.0
##
{ 'command': 'cxl-inject-uncorrectable-errors',
'data': { 'path': 'str',
'errors': [ 'CXLUncorErrorRecord' ] }}
##
# @CxlCorErrorType:
#
# Type of CXL correctable error to inject
#
# @cache-data-ecc: Data ECC error on CXL.cache
#
# @mem-data-ecc: Data ECC error on CXL.mem
#
# @crc-threshold: Component specific and applicable to 68 byte Flit
# mode only.
#
# @cache-poison-received: Received poison from a peer on CXL.cache.
#
# @mem-poison-received: Received poison from a peer on CXL.mem
#
# @physical: Received error indication from the physical layer.
#
# Since: 8.0
##
{ 'enum': 'CxlCorErrorType',
'data': ['cache-data-ecc',
'mem-data-ecc',
'crc-threshold',
'retry-threshold',
'cache-poison-received',
'mem-poison-received',
'physical']
}
##
# @cxl-inject-correctable-error:
#
# Command to inject a single correctable error. Multiple error
# injection of this error type is not interesting as there is no
# associated header log. These errors are reported via AER as a
# correctable internal error, with additional detail available from
# the CXL device.
#
# @path: CXL Type 3 device canonical QOM path
#
# @type: Type of error.
#
# Since: 8.0
##
{'command': 'cxl-inject-correctable-error',
'data': {'path': 'str', 'type': 'CxlCorErrorType'}}