From b6dc6187f7b0868f0a08e80a20c2a13c32e519ed Mon Sep 17 00:00:00 2001
From: rsc <rsc>
Date: Wed, 8 Aug 2007 09:02:42 +0000
Subject: add DPL_USER constant

---
 trap.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'trap.c')

diff --git a/trap.c b/trap.c
index 0625e56..0c4a956 100644
--- a/trap.c
+++ b/trap.c
@@ -18,7 +18,7 @@ tvinit(void)
 
   for(i = 0; i < 256; i++)
     SETGATE(idt[i], 0, SEG_KCODE << 3, vectors[i], 0);
-  SETGATE(idt[T_SYSCALL], 0, SEG_KCODE << 3, vectors[T_SYSCALL], 3);
+  SETGATE(idt[T_SYSCALL], 0, SEG_KCODE << 3, vectors[T_SYSCALL], DPL_USER);
 }
 
 void
@@ -56,7 +56,7 @@ trap(struct trapframe *tf)
       // Force process exit if it has been killed and is in user space.
       // (If it is still executing in the kernel, let it keep running
       // until it gets to the regular system call return.)
-      if((tf->cs&3) == 3 && cp->killed)
+      if((tf->cs&3) == DPL_USER && cp->killed)
         proc_exit();
 
       // Force process to give up CPU and let others run.
-- 
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