Enable vmspace sharing on SMP. Major changes are,

- %fs register is added to trapframe and saved/restored upon kernel entry/exit.
- Per-cpu pages are no longer mapped at the same virtual address.
- Each cpu now has a separate gdt selector table. A new segment selector
  is added to point to per-cpu pages, per-cpu global variables are now
  accessed through this new selector (%fs). The selectors in gdt table are
  rearranged for cache line optimization.
- fask_vfork is now on as default for both UP and SMP.
- Some aio code cleanup.

Reviewed by:	Alan Cox	<alc@cs.rice.edu>
		John Dyson	<dyson@iquest.net>
		Julian Elischer	<julian@whistel.com>
		Bruce Evans	<bde@zeta.org.au>
		David Greenman	<dg@root.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/sys/i386/include/proc.h b/sys/i386/include/proc.h
index e7a4744a03b5..ae6cd6337bc3 100644
--- a/sys/i386/include/proc.h
+++ b/sys/i386/include/proc.h
@@ -31,12 +31,14 @@
  * SUCH DAMAGE.
  *
  *	from: @(#)proc.h	7.1 (Berkeley) 5/15/91
- *	$Id: proc.h,v 1.7 1997/02/22 09:34:59 peter Exp $
+ *	$Id: proc.h,v 1.8 1997/05/07 19:55:13 peter Exp $
  */
 
 #ifndef _MACHINE_PROC_H_
 #define	_MACHINE_PROC_H_
 
+#include <machine/globals.h>
+
 /*
  * Machine-dependent part of the proc structure for i386.
  */