1 files changed, 10 insertions, 1 deletions

diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h
index b444d83cfc95..89d5c8886c85 100644
--- a/arch/x86/include/asm/pgtable.h
+++ b/arch/x86/include/asm/pgtable.h
@@ -65,7 +65,7 @@ extern pmdval_t early_pmd_flags;
 
 #ifndef __PAGETABLE_P4D_FOLDED
 #define set_pgd(pgdp, pgd)              native_set_pgd(pgdp, pgd)
-#define pgd_clear(pgd)                  native_pgd_clear(pgd)
+#define pgd_clear(pgd)                  (pgtable_l5_enabled ? native_pgd_clear(pgd) : 0)
 #endif
 
 #ifndef set_p4d
@@ -859,6 +859,8 @@ static inline unsigned long p4d_index(unsigned long address)
 #if CONFIG_PGTABLE_LEVELS > 4
 static inline int pgd_present(pgd_t pgd)
 {
+        if (!pgtable_l5_enabled)
+                return 1;
         return pgd_flags(pgd) & _PAGE_PRESENT;
 }
 
@@ -876,6 +878,8 @@ static inline unsigned long pgd_page_vaddr(pgd_t pgd)
 /* to find an entry in a page-table-directory. */
 static inline p4d_t *p4d_offset(pgd_t *pgd, unsigned long address)
 {
+        if (!pgtable_l5_enabled)
+                return (p4d_t *)pgd;
         return (p4d_t *)pgd_page_vaddr(*pgd) + p4d_index(address);
 }
 
@@ -883,6 +887,9 @@ static inline int pgd_bad(pgd_t pgd)
 {
         unsigned long ignore_flags = _PAGE_USER;
 
+        if (!pgtable_l5_enabled)
+                return 0;
+
         if (IS_ENABLED(CONFIG_PAGE_TABLE_ISOLATION))
                 ignore_flags |= _PAGE_NX;
 
@@ -891,6 +898,8 @@ static inline int pgd_bad(pgd_t pgd)
 
 static inline int pgd_none(pgd_t pgd)
 {
+        if (!pgtable_l5_enabled)
+                return 0;
         /*
          * There is no need to do a workaround for the KNL stray
          * A/D bit erratum here.  PGDs only point to page tables