msrtool(8)

msrtool8

Dumps chipset-specific msr registers

Usage

msrtool {[-hvqrkl] [-c cpu] [-m system] [-t target ...] [-i addr=hi [:] lo] | [-s file] | [-d [:] file] | addr ...}

Overview

Dumps chipset-specific MSR registers

Options

-h

Show this help text

-v

Be verbose

-q

Be quiet (overrides -v)

-r

Include [Reserved] values

-k

List all known systems and targets

-l

List MSRs and bit fields for current target(s) (-kl for ALL targets!)

-c

Access MSRs on the specified CPU, default=0

-m

Force a system, e.g: -m linux

-t

Force a target, can be used multiple times, e.g: -t geodelx -t cs5536

-i

Immediate mode

Decode hex addr=hi:lo for the target without reading hw value
e.g: -i 4c00000f=f2f100ff56960004
-s

Stream mode

Read one MSR address per line and append current hw value to the line
use the filename - for stdin/stdout
using -l -s ignores input and will output all MSRs with values
-d

Diff mode

read one address and value per line and compare with current hw value, printing differences to stdout.
use the filename - to read from stdin
use :file or :- to reverse diff, normally hw values are considered new
addr.. direct mode, read and decode values for the given MSR address(es)

Authors

coresystems GmbH.
Man page written by Ahmad Khalifa.

From coreboot-utils 24.12+dfsg-2 in Debian 13 (Trixie). Parsed by carta from the page's man source.