[Xen-changelog] Fix cleanup path for active writable pagetable. Reconnect page so that it

[BitKeeper Bot <riel@xxxxxxxxxxx>]

ChangeSet 1.1159.270.12, 2005/03/25 13:33:38+00:00, cl349@xxxxxxxxxxxxxxxxxxxx

        Fix cleanup path for active writable pagetable.  Reconnect page so that 
it
        gets cleaned up correctly.
        Signed-off-by: Christian Limpach <Christian.Limpach@xxxxxxxxxxxx>



 memory.c |    5 +++++
 1 files changed, 5 insertions(+)


diff -Nru a/xen/arch/x86/memory.c b/xen/arch/x86/memory.c
--- a/xen/arch/x86/memory.c     2005-03-25 09:03:12 -05:00
+++ b/xen/arch/x86/memory.c     2005-03-25 09:03:12 -05:00
@@ -1765,6 +1765,11 @@
                    (ENTRIES_PER_L1_PAGETABLE - i) * sizeof(l1_pgentry_t));
             unmap_domain_mem(pl1e);
             ptwr_info[cpu].ptinfo[which].l1va = 0;
+            if ( (which == PTWR_PT_ACTIVE) && likely(!d->mm.shadow_mode) )
+            {
+                pl2e = &linear_l2_table[ptwr_info[cpu].ptinfo[which].l2_idx];
+                *pl2e = mk_l2_pgentry(l2_pgentry_val(*pl2e) | _PAGE_PRESENT); 
+            }
             domain_crash();
         }
         


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