Importing "grsecurity-3.1-3.19.2-201503201903.patch"

[people/ms/linux.git] / arch / x86 / include / asm / pgtable_64.h

diff --git a/arch/x86/include/asm/pgtable_64.h b/arch/x86/include/asm/pgtable_64.h
index 4572b2f302379ea04da04d99ab5933b49b6ae063..44301130c92cde2f740322d6cada5e4e0fbd9f02 100644 (file)
--- a/arch/x86/include/asm/pgtable_64.h
+++ b/arch/x86/include/asm/pgtable_64.h
@@ -16,11 +16,16 @@
 
 extern pud_t level3_kernel_pgt[512];
 extern pud_t level3_ident_pgt[512];
+extern pud_t level3_vmalloc_start_pgt[512];
+extern pud_t level3_vmalloc_end_pgt[512];
+extern pud_t level3_vmemmap_pgt[512];
+extern pud_t level2_vmemmap_pgt[512];
 extern pmd_t level2_kernel_pgt[512];
 extern pmd_t level2_fixmap_pgt[512];
-extern pmd_t level2_ident_pgt[512];
+extern pmd_t level2_ident_pgt[512*2];
 extern pte_t level1_fixmap_pgt[512];
-extern pgd_t init_level4_pgt[];
+extern pte_t level1_vsyscall_pgt[512];
+extern pgd_t init_level4_pgt[512];
 
 #define swapper_pg_dir init_level4_pgt
 
@@ -62,7 +67,9 @@ static inline void native_set_pte_atomic(pte_t *ptep, pte_t pte)
 
 static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd)
 {
+       pax_open_kernel();
        *pmdp = pmd;
+       pax_close_kernel();
 }
 
 static inline void native_pmd_clear(pmd_t *pmd)
@@ -98,7 +105,9 @@ static inline pmd_t native_pmdp_get_and_clear(pmd_t *xp)
 
 static inline void native_set_pud(pud_t *pudp, pud_t pud)
 {
+       pax_open_kernel();
        *pudp = pud;
+       pax_close_kernel();
 }
 
 static inline void native_pud_clear(pud_t *pud)
@@ -107,6 +116,13 @@ static inline void native_pud_clear(pud_t *pud)
 }
 
 static inline void native_set_pgd(pgd_t *pgdp, pgd_t pgd)
+{
+       pax_open_kernel();
+       *pgdp = pgd;
+       pax_close_kernel();
+}
+
+static inline void native_set_pgd_batched(pgd_t *pgdp, pgd_t pgd)
 {
        *pgdp = pgd;
 }