Advanced Configuration and Power Interface Specification

ACPI Platform Error Interfaces (APEI)
Table 18-343 Instruction Flags
Value Name Description
0x01 PRESERVE_REGISTER For WRITE_REGISTER and WRITE_REGISTER_VALUE
instructions, this flag indicates that bits within the register that
are not being written must be preserved rather than
destroyed.
For READ_REGISTER instructions, this flag is ignored.
18.6.3 Injection Instructions
Table 18-344 lists the supported Injection Instructions for Injection Instruction Entries.
Table 18-344 Injection Instructions
Opcode Instruction name Description
0x00 READ_REGISTER A READ_REGISTER instruction reads the value from the
specified register region.
0x01 READ_REGISTER_VALUE A READ_REGISTER_VALUE instruction reads the designated
information from the specified Register Region and compares
the results with the contents of the Value field.
If the information read matches the contents of the Value field,
TRUE is returned, else FALSE is returned.
0x02 WRITE_REGISTER A WRITE_REGISTER instruction writes a value to the specified
Register Region. The Value field is ignored.
0x03 WRITE_REGISTER_VALUE A WRITE_REGISTER_VALUE instruction writes the contents
of the Value field to the specified Register Region.
0x04 NOOP No operation.
Table 18-345 below defines the error injection status codes returned from
GET_COMMAND_STATUS.
Table 18-345 Command Status Definition
Value
0x0
0x1
0x2
Description
Success
Unknown Failure
Invalid Access
Table 18-346 below defines the error type codes returned from GET_ERROR_TYPE.
Table 18-346 Error Type Definition
Bit
Description
0 Processor Correctable
1 Processor Uncorrectable non-fatal
2 Processor Uncorrectable fatal
Version 6.0 745