x86: add pud_alloc for 4-level pagetables

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 1 insertions, 0 deletions

diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c
index 1d44d6dd4c9f..5accc08683c7 100644
--- a/arch/x86/mm/pgtable.c
+++ b/arch/x86/mm/pgtable.c
@@ -38,6 +38,7 @@ void __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd)
 #if PAGETABLE_LEVELS > 3
 void __pud_free_tlb(struct mmu_gather *tlb, pud_t *pud)
 {
+        paravirt_release_pud(__pa(pud) >> PAGE_SHIFT);
         tlb_remove_page(tlb, virt_to_page(pud));
 }
 #endif  /* PAGETABLE_LEVELS > 3 */