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

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. acpidump options are as follow:

Options

-b Dump tables to binary files

-c Dump customized tables

-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

-f <BinaryFile> Get table via a binary file

-n <Signature> Get table via a name/signature

Invocation without parameters dumps all available tables

Multiple mixed instances of -a, -f, and -n are supported

# 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. "acpidump " must be run as root. ACPICA: https://acpica.org/

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

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>

\fIacpixtract\|(8), iasl\|(8). COPYRIGHT (c) 2013, Intel Corporation.