1 RDMSR(1M)                    Maintenance Commands                    RDMSR(1M)
   2 
   3 NAME
   4      rdmsr - Read Model-Specific Register
   5 
   6 SYNOPSIS
   7      rdmsr [0x<msrnr>]...
   8 
   9 DESCRIPTION
  10      The rdmsr command can be used to read a value out of one or more x86
  11      MSRs, as defined by the Intel and AMD CPU specifications.  The integer
  12      MSR number should be given (typically in 0x-prefixed hexadecimal).  It is
  13      the command-line equivalent of the rdmsr() instruction).
  14 
  15      The read is done on the current CPU, which may change arbitrarily between
  16      MSR reads: to read from a particular CPU, pbind(1M) can be used to
  17      execute this utility.
  18 
  19 EXIT STATUS
  20      The rdmsr utility exits 0 on success, or 1 if an error occurs, or at
  21      least one MSR could not be read.
  22 
  23 SEE ALSO
  24      Intel 64 and IA-32 Architectures Software Developer's Manual Volume 4:
  25      Model-Specific Registers
  26 
  27 illumos                        October 14, 2019                        illumos