PERFORCE change 28503 for review

[Peter Wemm]

http://perforce.freebsd.org/chv.cgi?CH=28503

Change 28503 by peter at peter_daintree on 2003/04/08 01:51:16

	point %cr3 to the pml4 or cpu_switch doesn't work too well

Affected files ...

.. //depot/projects/hammer/sys/x86_64/x86_64/vm_machdep.c#18 edit

Differences ...

==== //depot/projects/hammer/sys/x86_64/x86_64/vm_machdep.c#18 (text+ko) ====

@@ -134,11 +134,7 @@
 	 * Set registers for trampoline to user mode.  Leave space for the
 	 * return address on stack.  These are the kernel mode register values.
 	 */
-#ifdef PAE
-	pcb2->pcb_cr3 = vtophys(vmspace_pmap(p2->p_vmspace)->pm_pdpt);
-#else
-	pcb2->pcb_cr3 = vtophys(vmspace_pmap(p2->p_vmspace)->pm_pdir);
-#endif
+	pcb2->pcb_cr3 = vtophys(vmspace_pmap(p2->p_vmspace)->pm_pml4);
 	pcb2->pcb_r12 = (int)fork_return;	/* fork_trampoline argument */
 	pcb2->pcb_rbp = 0;
 	pcb2->pcb_rsp = (long)td2->td_frame - sizeof(void *);