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Oracle® x86 Server Diagnostics, Applications, and Utilities Guide

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Updated: June 2016

system acpi

The system acpi command finds all of the Advanced Configuration and Power Interface (ACPI) tables that are defined by BIOS and displays their associated information. This command can be used to view ACPI signature tables, to dump all table data, and to determine how many logical processors and cores are enabled. Without options, this command displays only defined ACPI tables.

Command Syntax

udiag system acpi [ -v ]

udiag system acpi <name> [ offset_length ]


Specifies the name of the ACPI table.
Specifies the offset to start the data dump.
Specifies the number of bytes to be displayed.
Displays more information, such as the ACPI processor ID, CPU ID, APIC ID, core ID, thread number, and if the logical processor is a boot strap processor or an application processor.

Resource Requirements



To display system ACPI tables, type:

fs0:/> udiag system acpi

To display a specific ACPI table, type:

fs0:/> udiag system acpi XSDT

To display a specific ACPI table and the offset length, type:

fs0:/> udiag system acpi SSDT 0x40 0x20