svn commit: r186611 - head/usr.sbin/cpucontrol
Christian Brueffer
brueffer at FreeBSD.org
Tue Dec 30 20:16:34 UTC 2008
Author: brueffer
Date: Tue Dec 30 20:16:33 2008
New Revision: 186611
URL: http://svn.freebsd.org/changeset/base/186611
Log:
Mdoc and wording improvements.
Modified:
head/usr.sbin/cpucontrol/cpucontrol.8
Modified: head/usr.sbin/cpucontrol/cpucontrol.8
==============================================================================
--- head/usr.sbin/cpucontrol/cpucontrol.8 Tue Dec 30 20:13:20 2008 (r186610)
+++ head/usr.sbin/cpucontrol/cpucontrol.8 Tue Dec 30 20:16:33 2008 (r186611)
@@ -55,21 +55,26 @@ device.
.Sh DESCRIPTION
The
.Nm
-utility can be used to read and write an arbitrary machine-specific
-CPU registers via
+utility can be used to read and write arbitrary machine-specific
+CPU registers via the
.Xr cpuctl 4
-controlled special device and apply the CPU firmware updates.
+special device.
+It can also be used to apply CPU firmware updates.
.Pp
The following options are available:
.Bl -tag -width indent
.It Fl d Ar datadir
-Where to look for microcode images. The option can be specified multiple times.
+Where to look for microcode images.
+The option can be specified multiple times.
.It Fl m Ar msr Ns Op = Ns Ar value
-Read/write the specified MSR. Both the MSR and the value should be given as a hex number.
+Read/write the specified MSR.
+Both the MSR and the value should be given as a hex number.
.It Fl i Ar level
-Retrieve CPUID info. Level should be given as a hex number.
+Retrieve CPUID info.
+Level should be given as a hex number.
.It Fl u
-Apply CPU firmware updates. The
+Apply CPU firmware updates.
+The
.Nm
utility will walk through the configured data directories
and will apply all firmware patches available for this CPU.
@@ -93,14 +98,13 @@ To set the CPU 0 TSC MSR register value
.Pp
.Dq Li "cpucontrol -m 0x10=0x1 /dev/cpuctl0"
.Pp
-.Pp
The command
.Pp
.Dq Li "cpucontrol -i 0x1 /dev/cpuctl1"
.Pp
will retrieve the CPUID level 0x1 from CPU 1.
.Pp
-To perform firmware updated on CPU 0 from images located at
+To perform firmware updates on CPU 0 from images located at
.Pa /usr/local/share/cpuctl/
use the following command:
.Pp
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