APEI 输出格式

APEI使用printk作为硬件错误报告接口，输出格式如下：

<error record> :=
APEI generic hardware error status
severity: <integer>, <severity string>
section: <integer>, severity: <integer>, <severity string>
flags: <integer>
<section flags strings>
fru_id: <uuid string>
fru_text: <string>
section_type: <section type string>
<section data><severity string>* := recoverable | fatal | corrected | info<section flags strings># :=
[primary][, containment warning][, reset][, threshold exceeded]\
[, resource not accessible][, latent error]<section type string> := generic processor error | memory error | \
PCIe error | unknown, <uuid string><section data> :=
<generic processor section data> | <memory section data> | \
<pcie section data> | <null><generic processor section data> :=
[processor_type: <integer>, <proc type string>]
[processor_isa: <integer>, <proc isa string>]
[error_type: <integer>
<proc error type strings>]
[operation: <integer>, <proc operation string>]
[flags: <integer>
<proc flags strings>]
[level: <integer>]
[version_info: <integer>]
[processor_id: <integer>]
[target_address: <integer>]
[requestor_id: <integer>]
[responder_id: <integer>]
[IP: <integer>]<proc type string>* := IA32/X64 | IA64<proc isa string>* := IA32 | IA64 | X64<processor error type strings># :=
[cache error][, TLB error][, bus error][, micro-architectural error]<proc operation string>* := unknown or generic | data read | data write | \
instruction execution<proc flags strings># :=
[restartable][, precise IP][, overflow][, corrected]<memory section data> :=
[error_status: <integer>]
[physical_address: <integer>]
[physical_address_mask: <integer>]
[node: <integer>]
[card: <integer>]
[module: <integer>]
[bank: <integer>]
[device: <integer>]
[row: <integer>]
[column: <integer>]
[bit_position: <integer>]
[requestor_id: <integer>]
[responder_id: <integer>]
[target_id: <integer>]
[error_type: <integer>, <mem error type string>]<mem error type string>* :=
unknown | no error | single-bit ECC | multi-bit ECC | \
single-symbol chipkill ECC | multi-symbol chipkill ECC | master abort | \
target abort | parity error | watchdog timeout | invalid address | \
mirror Broken | memory sparing | scrub corrected error | \
scrub uncorrected error<pcie section data> :=
[port_type: <integer>, <pcie port type string>]
[version: <integer>.<integer>]
[command: <integer>, status: <integer>]
[device_id: <integer>:<integer>:<integer>.<integer>
slot: <integer>
secondary_bus: <integer>
vendor_id: <integer>, device_id: <integer>
class_code: <integer>]
[serial number: <integer>, <integer>]
[bridge: secondary_status: <integer>, control: <integer>]
[aer_status: <integer>, aer_mask: <integer>
<aer status string>
[aer_uncor_severity: <integer>]
aer_layer=<aer layer string>, aer_agent=<aer agent string>
aer_tlp_header: <integer> <integer> <integer> <integer>]<pcie port type string>* := PCIe end point | legacy PCI end point | \
unknown | unknown | root port | upstream switch port | \
downstream switch port | PCIe to PCI/PCI-X bridge | \
PCI/PCI-X to PCIe bridge | root complex integrated endpoint device | \
root complex event collectorif section severity is fatal or recoverable
<aer status string># :=
unknown | unknown | unknown | unknown | Data Link Protocol | \
unknown | unknown | unknown | unknown | unknown | unknown | unknown | \
Poisoned TLP | Flow Control Protocol | Completion Timeout | \
Completer Abort | Unexpected Completion | Receiver Overflow | \
Malformed TLP | ECRC | Unsupported Request
else
<aer status string># :=
Receiver Error | unknown | unknown | unknown | unknown | unknown | \
Bad TLP | Bad DLLP | RELAY_NUM Rollover | unknown | unknown | unknown | \
Replay Timer Timeout | Advisory Non-Fatal
fi<aer layer string> :=
Physical Layer | Data Link Layer | Transaction Layer<aer agent string> :=
Receiver ID | Requester ID | Completer ID | Transmitter ID

其中，[] 表示相应内容为可选项

所有带 * 的 <field string> 描述均采用以下格式：

field: <integer>, <field string>

其中 <integer> 的值应为 <field string> 中的“string”来描述。否则，<field string> 将为“unknown”。

所有带有 # 的 <field strings> 描述均具有以下格式：

field: <integer>
<field strings>

其中<fields strings>中的每个字符串对应<integer>的一个设置位。位的位置是<field strings>描述中相应“string”的位置。

有关每个字段的更详细说明，请参阅UEFI规范版本2.3或更高版本，附录N：通用平台错误记录部分。