rewrite virt_to_xen_l1e

diff --git a/xen/arch/x86/domain_page.c b/xen/arch/x86/domain_page.c
index 4a07cfb18e9478afa4defd89d2d0ee24b371e827..c72c6972362e9a11f24a9d826e66b186ef058d7b 100644 (file)
--- a/xen/arch/x86/domain_page.c
+++ b/xen/arch/x86/domain_page.c
@@ -333,21 +333,23 @@ void unmap_domain_page_global(const void *ptr)
 mfn_t domain_page_map_to_mfn(const void *ptr)
 {
     unsigned long va = (unsigned long)ptr;
-    const l1_pgentry_t *pl1e;
+    l1_pgentry_t l1e;
 
     if ( va >= DIRECTMAP_VIRT_START )
         return _mfn(virt_to_mfn(ptr));
 
     if ( va >= VMAP_VIRT_START && va < VMAP_VIRT_END )
     {
-        pl1e = virt_to_xen_l1e(va);
+        l1_pgentry_t *pl1e = virt_to_xen_l1e(va);
         BUG_ON(!pl1e);
+        l1e = *pl1e;
+        unmap_xen_pagetable_new(pl1e);
     }
     else
     {
         ASSERT(va >= MAPCACHE_VIRT_START && va < MAPCACHE_VIRT_END);
-        pl1e = &__linear_l1_table[l1_linear_offset(va)];
+        l1e = __linear_l1_table[l1_linear_offset(va)];
     }
 
-    return l1e_get_mfn(*pl1e);
+    return l1e_get_mfn(l1e);
 }