From 182d7debb9f725cff2dbfe543ed82d4d9f988bb6 Mon Sep 17 00:00:00 2001
From: Tycho Nightingale <tychon@FreeBSD.org>
Date: Fri, 21 Feb 2014 01:15:26 +0000
Subject: [PATCH] Avoid clobbering the counter mode when issuing a latch
 command.

Approved by:	grehan (co-mentor)
---
 usr.sbin/bhyve/pit_8254.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/usr.sbin/bhyve/pit_8254.c b/usr.sbin/bhyve/pit_8254.c
index 3eb1aa753591..26fb03dbbac6 100644
--- a/usr.sbin/bhyve/pit_8254.c
+++ b/usr.sbin/bhyve/pit_8254.c
@@ -216,11 +216,12 @@ pit_8254_handler(struct vmctx *ctx, int vcpu, int in, int port, int bytes,
 		
 		c = &counter[sel >> 6];
 		c->ctx = ctx;
-		c->mode = mode;
 		if (rw == TIMER_LATCH)
 			pit_update_counter(c, 1);
-		else
+		else {
+			c->mode = mode;
 			c->olbyte = 0;	/* reset latch after reprogramming */
+		}
 		
 		return (0);
 	}