/dev/mem
acpidump8
Dump acpi tables
Usage
acpidump -o
prefix
Overview
The acpidump command stores ACPI tables from physical memory into files specified by prefix. If prefix specifies a directory, the generated files will be of the form <prefix>/<sig>.<id>. Otherwise, they will be named <prefix>.<sig>.<id>. “sig” is the signature of the ACPI Table; “id” is unique for each table.
Additionally a file called <prefix>/headers or <prefix>.headers will be created that contains additional human readable information pertaining to this specific dump.
The ACPICA disassembler is available through the OpenBSD ports tree or package system:
# pkg_add acpica $ iasl -d <prefix>.<sig>.<id>
acpidump requires the ability to open /dev/kmem, which may be restricted based upon the value of the kern.allowkmem sysctl(8).
acpidump is run at startup and stores the results in /var/db/acpi.
Files
-
-
/var/db/acpi
Releases
44 releases since OpenBSD 3.8; the text changed 10 times.
-f until OpenBSD 4.7;
-h until OpenBSD 4.2;
-o until OpenBSD 4.7.