[src/trunk]: src/usr.sbin/cpuctl note the default path for ucode updates can ...

[mrg <mrg%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/8fd7de1c9d0d
branches:  trunk
changeset: 828997:8fd7de1c9d0d
user:      mrg <mrg%NetBSD.org@localhost>
date:      Sun Jan 14 00:45:54 2018 +0000

description:
note the default path for ucode updates can be found in sysctl.

diffstat:

 usr.sbin/cpuctl/cpuctl.8 |  12 ++++++++----
 1 files changed, 8 insertions(+), 4 deletions(-)

diffs (47 lines):

diff -r 1b39d36eae47 -r 8fd7de1c9d0d usr.sbin/cpuctl/cpuctl.8
--- a/usr.sbin/cpuctl/cpuctl.8  Sat Jan 13 23:43:46 2018 +0000
+++ b/usr.sbin/cpuctl/cpuctl.8  Sun Jan 14 00:45:54 2018 +0000
@@ -1,4 +1,4 @@
-.\"    $NetBSD: cpuctl.8,v 1.17 2016/09/17 20:48:04 wiz Exp $
+.\"    $NetBSD: cpuctl.8,v 1.18 2018/01/14 00:45:54 mrg Exp $
 .\"
 .\" Copyright (c) 2007, 2008, 2012, 2015 The NetBSD Foundation, Inc.
 .\" All rights reserved.
@@ -27,7 +27,7 @@
 .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 .\" POSSIBILITY OF SUCH DAMAGE.
 .\"
-.Dd September 17, 2016
+.Dd January 13, 2018
 .Dt CPUCTL 8
 .Os
 .Sh NAME
@@ -85,6 +85,8 @@
 On success the
 .Cm identify
 command show different ucode versions before and after this command.
+The ucode updates are found in the default firmware path found in
+sysctl hw.firmware.path.
 .It intr Ar cpu Op Ar cpu ...
 Enable interrupts for the specified CPUs if supported.
 .It nointr Ar cpu Op Ar cpu ...
@@ -122,7 +124,7 @@
 .Ed
 .Pp
 After applying the microcode patch with
-.Dl cpuctl ucode
+.Dl cpuctl ucode 0
 you can see with
 .Dl cpuctl identify 0
 that the patch got applied:
@@ -132,7 +134,9 @@
 .Sh SEE ALSO
 .Xr intrctl 8 ,
 .Xr psrset 8 ,
-.Xr schedctl 8
+.Xr schedctl 8 ,
+.Xr sysctl 8 ,
+.Xr firmload 9
 .Sh HISTORY
 The
 .Nm