# HG changeset 15391 patch
# User kfraser@localhost.localdomain
# Date 1182343194 -3600
# Node ID fe3df33e27615a9732f0ae73d65dae0f23afbb4d
# Parent  69658f935cc737c46d33404ccb5e9aff9842e5cb
32-on-64: First slot of hidden L4 page directory must start life as zero.
Signed-off-by: Keir Fraser <keir@xensource.com>

Index: 2007-05-14/xen/arch/x86/domain.c
===================================================================
--- 2007-05-14.orig/xen/arch/x86/domain.c	2007-07-02 10:48:10.000000000 +0200
+++ 2007-05-14/xen/arch/x86/domain.c	2007-07-02 10:48:13.000000000 +0200
@@ -234,6 +234,7 @@ static int setup_compat_l4(struct vcpu *
     pg->u.inuse.type_info = PGT_l4_page_table|PGT_validated;
 
     l4tab = copy_page(page_to_virt(pg), idle_pg_table);
+    l4tab[0] = l4e_empty();
     l4tab[l4_table_offset(LINEAR_PT_VIRT_START)] =
         l4e_from_page(pg, __PAGE_HYPERVISOR);
     l4tab[l4_table_offset(PERDOMAIN_VIRT_START)] =