From e0af513d4f2ba8f1605ec41216be278ec5e0ea68 Mon Sep 17 00:00:00 2001
From: David du Colombier <0intro@gmail.com>
Date: Fri, 26 Aug 1994 00:00:00 +0000
Subject: [PATCH] Plan 9 from Bell Labs 1994-08-26

---
 pc/kbd.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/pc/kbd.c b/pc/kbd.c
index ee3ab78e61c798ef65ec86d9b89a8853611fc403..3c74b4ca338b4a6d906aa91460871e576abb1899 100644
--- a/pc/kbd.c
+++ b/pc/kbd.c
@@ -213,6 +213,10 @@ i8042a20(void)
 void
 i8042reset(void)
 {
+	ushort *s = (ushort*)(KZERO|0x472);
+
+	*s = 0x1234;		/* BIOS warm-boot flag */
+
 	/*
 	 *  this works for dhog
 	 */