From b1c0b90eb8eda5f1fcf8d2e21097bcc8059c05e2 Mon Sep 17 00:00:00 2001
From: obrien <obrien@FreeBSD.org>
Date: Thu, 18 Mar 2004 02:53:38 +0000
Subject: [PATCH] Document machdep.hlt_cpus.

Submitted by:	Craig Rodrigues <rodrigc@crodrigues.org>
---
 sys/amd64/amd64/mp_machdep.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sys/amd64/amd64/mp_machdep.c b/sys/amd64/amd64/mp_machdep.c
index 0ad2fd5d3061..b1c1b96fd310 100644
--- a/sys/amd64/amd64/mp_machdep.c
+++ b/sys/amd64/amd64/mp_machdep.c
@@ -1016,7 +1016,8 @@ sysctl_hlt_cpus(SYSCTL_HANDLER_ARGS)
 	return (error);
 }
 SYSCTL_PROC(_machdep, OID_AUTO, hlt_cpus, CTLTYPE_INT|CTLFLAG_RW,
-    0, 0, sysctl_hlt_cpus, "IU", "");
+    0, 0, sysctl_hlt_cpus, "IU",
+    "Bitmap of CPUs to halt.  101 (binary) will halt CPUs 0 and 2.");
 
 static int
 sysctl_hlt_logical_cpus(SYSCTL_HANDLER_ARGS)