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author | brueffer <brueffer@FreeBSD.org> | 2008-12-30 20:16:33 +0000 |
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committer | brueffer <brueffer@FreeBSD.org> | 2008-12-30 20:16:33 +0000 |
commit | 48216e44a59708906b99eb94e0e7e2f0b9478ff2 (patch) | |
tree | 4dab76fbaa3418a636d9222a866c35fbf2532592 /usr.sbin/cpucontrol | |
parent | 114967dedd97fa67f9ead468328d574f3fbc6cb3 (diff) | |
download | FreeBSD-src-48216e44a59708906b99eb94e0e7e2f0b9478ff2.zip FreeBSD-src-48216e44a59708906b99eb94e0e7e2f0b9478ff2.tar.gz |
Mdoc and wording improvements.
Diffstat (limited to 'usr.sbin/cpucontrol')
-rw-r--r-- | usr.sbin/cpucontrol/cpucontrol.8 | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/usr.sbin/cpucontrol/cpucontrol.8 b/usr.sbin/cpucontrol/cpucontrol.8 index cc753e0..a0bbdb3 100644 --- a/usr.sbin/cpucontrol/cpucontrol.8 +++ b/usr.sbin/cpucontrol/cpucontrol.8 @@ -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 to 0x1 issue .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 |