From f70172129c94e4d53b56fc10a7d859679b581bd2 Mon Sep 17 00:00:00 2001
From: kaashoek <kaashoek>
Date: Thu, 7 Sep 2006 01:37:58 +0000
Subject: run without lapic and ioapic, if they are not present if no lapic
 available, use 8253pit for clock now xv6 runs both on qemu (uniprocessor) and
 bochs (uniprocessor and MP)

---
 main.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

(limited to 'main.c')

diff --git a/main.c b/main.c
index dba8bdd..876c20a 100644
--- a/main.c
+++ b/main.c
@@ -71,8 +71,11 @@ main0(void)
   // start other CPUs
   mp_startthem();
 
-  // turn on timer and enable interrupts on the local APIC
-  lapic_timerinit();
+  // turn on timer
+  if (ismp) lapic_timerinit();
+  else pit8253_timerinit();
+
+  // enable interrupts on the local APIC
   lapic_enableintr();
 
   // Enable interrupts on this processor.
-- 
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