From 8a7985c4e651976d373c786f5db973da96827705 Mon Sep 17 00:00:00 2001
From: deraadt <deraadt@openbsd.org>
Date: Thu, 18 Dec 2014 17:00:19 +0000
Subject: [PATCH] suspend & resume RNG subsystem

---
 sys/arch/i386/i386/apm.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/sys/arch/i386/i386/apm.c b/sys/arch/i386/i386/apm.c
index fe915c35379..f16fd6bcf3b 100644
--- a/sys/arch/i386/i386/apm.c
+++ b/sys/arch/i386/i386/apm.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: apm.c,v 1.110 2014/10/17 15:35:31 deraadt Exp $	*/
+/*	$OpenBSD: apm.c,v 1.111 2014/12/18 17:00:19 deraadt Exp $	*/
 
 /*-
  * Copyright (c) 1998-2001 Michael Shalayeff. All rights reserved.
@@ -50,6 +50,7 @@
 #include <sys/buf.h>
 #include <sys/reboot.h>
 #include <sys/event.h>
+#include <dev/rndvar.h>
 
 #include <machine/conf.h>
 #include <machine/cpu.h>
@@ -253,6 +254,7 @@ apm_suspend(int state)
 	s = splhigh();
 	disable_intr();
 	config_suspend_all(DVACT_SUSPEND);
+	suspend_randomness();
 
 	/* XXX
 	 * Flag to disk drivers that they should "power down" the disk
@@ -276,6 +278,7 @@ apm_suspend(int state)
 	enable_intr();
 	splx(s);
 
+	resume_randomness();		/* force RNG upper level reseed */
 	/* restore hw.setperf */
 	if (cpu_setperf != NULL)
 		cpu_setperf(perflevel);
-- 
2.20.1