1 files changed, 8 insertions, 1 deletions

diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 2b6b4a3c8beb..fd4404f19d39 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -108,13 +108,13 @@ void sync_global_pgds(unsigned long start, unsigned long end)
         for (address = start; address <= end; address += PGDIR_SIZE) {
                 const pgd_t *pgd_ref = pgd_offset_k(address);
                 struct page *page;
+                pgd_t *pgd;
 
                 if (pgd_none(*pgd_ref))
                         continue;
 
                 spin_lock(&pgd_lock);
                 list_for_each_entry(page, &pgd_list, lru) {
-                        pgd_t *pgd;
                         spinlock_t *pgt_lock;
 
                         pgd = (pgd_t *)page_address(page) + pgd_index(address);
@@ -130,6 +130,13 @@ void sync_global_pgds(unsigned long start, unsigned long end)
 
                         spin_unlock(pgt_lock);
                 }
+
+                pgd = __va(real_mode_header->trampoline_pgd);
+                pgd += pgd_index(address);
+
+                if (pgd_none(*pgd))
+                        set_pgd(pgd, *pgd_ref);
+
                 spin_unlock(&pgd_lock);
         }
 }