Index: xen-3.0.4-testing/xen/arch/x86/mm/shadow/common.c
===================================================================
--- xen-3.0.4-testing.orig/xen/arch/x86/mm/shadow/common.c
+++ xen-3.0.4-testing/xen/arch/x86/mm/shadow/common.c
@@ -1163,6 +1163,8 @@ p2m_next_level(struct domain *d, mfn_t *
         if (type == PGT_l2_page_table)
         {
             struct vcpu *v;
+            /* for PAE mode, PDPE only have PCD/PWT/P bits available */
+            *p2m_entry = l1e_from_pfn(mfn_x(mfn), _PAGE_PRESENT);
             /* We have written to the p2m l3: need to sync the per-vcpu
              * copies of it in the monitor tables */
             p2m_install_entry_in_monitors(d, (l3_pgentry_t *)p2m_entry);