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Diffstat (limited to 'usr/src/man/man8/rdmsr.8')
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diff --git a/usr/src/man/man8/rdmsr.8 b/usr/src/man/man8/rdmsr.8 new file mode 100644 index 0000000000..a7f7f9df36 --- /dev/null +++ b/usr/src/man/man8/rdmsr.8 @@ -0,0 +1,43 @@ +.\" +.\" This file and its contents are supplied under the terms of the +.\" Common Development and Distribution License ("CDDL"), version 1.0. +.\" You may only use this file in accordance with the terms of version +.\" 1.0 of the CDDL. +.\" +.\" A full copy of the text of the CDDL should have accompanied this +.\" source. A copy of the CDDL is also available via the Internet at +.\" http://www.illumos.org/license/CDDL. +.\" +.\" Copyright 2019 Joyent, Inc. +.\" +.Dd October 14, 2019 +.Dt RDMSR 8 +.Os +.Sh NAME +.Nm rdmsr +.Nd Read Model-Specific Register +.Sh SYNOPSIS +.Nm +.Ar [0x<msrnr>]... +.Sh DESCRIPTION +The +.Nm +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 +.Fn rdmsr +instruction). +.Pp +The read is done on the current CPU, which may change arbitrarily +between MSR reads: to read from a particular CPU, +.Xr pbind 8 +can be used to execute this utility. +.Sh EXIT STATUS +The +.Nm +utility exits 0 on success, or 1 if an error occurs, or at least one MSR +could not be read. +.Sh SEE ALSO +Intel 64 and IA-32 Architectures Software Developer's Manual Volume 4: +Model-Specific Registers |