NAME¶

acpidump - dump a system's ACPI tables to an ASCII file

SYNOPSIS¶

acpidump [options]

DESCRIPTION¶

acpidump dumps the systems ACPI tables to an ASCII file appropriate for attaching to a bug report.

Subsequently, they can be processed by utilities in the ACPICA package.

OPTIONS¶

acpidump options are as follow:

Options
-b: Dump tables to binary files
-h -?: This help message
-o <File>: Redirect output to file
-r <Address>: Dump tables from specified RSDP
-s: Print table summaries only
-v: Display version information
-z: Verbose mode
Table Options
-a <Address>: Get table via a physical address
-c <on|off>: Turning on/off customized table dumping
-f <BinaryFile>: Get table via a binary file
-n <Signature>: Get table via a name/signature
-x: Do not use but dump XSDT
-x -x: Do not use or dump XSDT
Invocation without parameters dumps all available tables.
Multiple mixed instances of -a, -f, and -n are supported.

EXAMPLES¶

# acpidump > acpidump.out
$ acpixtract -a acpidump.out


        Acpi table [DSDT] -  15974 bytes written to DSDT.dat


        Acpi table [FACS] -     64 bytes written to FACS.dat


        Acpi table [FACP] -    116 bytes written to FACP.dat


        Acpi table [APIC] -    120 bytes written to APIC.dat


        Acpi table [MCFG] -     60 bytes written to MCFG.dat


        Acpi table [SSDT] -    444 bytes written to SSDT1.dat


        Acpi table [SSDT] -    439 bytes written to SSDT2.dat


        Acpi table [SSDT] -    439 bytes written to SSDT3.dat


        Acpi table [SSDT] -    439 bytes written to SSDT4.dat


        Acpi table [SSDT] -    439 bytes written to SSDT5.dat


        Acpi table [RSDT] -     76 bytes written to RSDT.dat


        Acpi table [RSDP] -     20 bytes written to RSDP.dat
$ iasl -d *.dat

creates *.dsl, a human readable form which can be edited and compiled using iasl.

NOTES¶

acpidump must be run as root.

REFERENCES¶

ACPICA: https://acpica.org/

FILES¶

/dev/mem
/sys/firmware/acpi/tables/*
/sys/firmware/acpi/tables/dynamic/*
/sys/firmware/efi/systab

AUTHOR¶

Original by:: Len Brown <len.brown@intel.com>
Written by:: Chao Guan <chao.guan@intel.com>
Updated by:: Bob Moore <robert.moore@intel.com>
Lv Zheng <lv.zheng@intel.com>