RDMSR(8) Maintenance Commands and Procedures RDMSR(8)
NAME
rdmsr - Read Model-Specific Register
SYNOPSIS
rdmsr [0x<msrnr>]...DESCRIPTION
The
rdmsr command can be used to read a value out of one or more x86
MSRs, as defined by the Intel and AMD CPU specifications. The integer
MSR number should be given (typically in 0x-prefixed hexadecimal). It
is the command-line equivalent of the
rdmsr() instruction).
The read is done on the current CPU, which may change arbitrarily
between MSR reads: to read from a particular CPU,
pbind(8) can be used
to execute this utility.
EXIT STATUS
The
rdmsr utility exits 0 on success, or 1 if an error occurs, or at
least one MSR could not be read.
SEE ALSO
Intel 64 and IA-32 Architectures Software Developer's Manual Volume 4:
Model-Specific Registers
illumos October 14, 2019 illumos
