diff options
Diffstat (limited to 'arch/x86/mm')
| -rw-r--r-- | arch/x86/mm/ident_map.c | 6 | ||||
| -rw-r--r-- | arch/x86/mm/pti.c | 2 |
2 files changed, 4 insertions, 4 deletions
diff --git a/arch/x86/mm/ident_map.c b/arch/x86/mm/ident_map.c index 437e96fb4977..5ab7bd2f1983 100644 --- a/arch/x86/mm/ident_map.c +++ b/arch/x86/mm/ident_map.c @@ -174,7 +174,7 @@ static int ident_p4d_init(struct x86_mapping_info *info, p4d_t *p4d_page, if (result) return result; - set_p4d(p4d, __p4d(__pa(pud) | info->kernpg_flag)); + set_p4d(p4d, __p4d(__pa(pud) | info->kernpg_flag | _PAGE_NOPTISHADOW)); } return 0; @@ -218,14 +218,14 @@ int kernel_ident_mapping_init(struct x86_mapping_info *info, pgd_t *pgd_page, if (result) return result; if (pgtable_l5_enabled()) { - set_pgd(pgd, __pgd(__pa(p4d) | info->kernpg_flag)); + set_pgd(pgd, __pgd(__pa(p4d) | info->kernpg_flag | _PAGE_NOPTISHADOW)); } else { /* * With p4d folded, pgd is equal to p4d. * The pgd entry has to point to the pud page table in this case. */ pud_t *pud = pud_offset(p4d, 0); - set_pgd(pgd, __pgd(__pa(pud) | info->kernpg_flag)); + set_pgd(pgd, __pgd(__pa(pud) | info->kernpg_flag | _PAGE_NOPTISHADOW)); } } diff --git a/arch/x86/mm/pti.c b/arch/x86/mm/pti.c index 851ec8f1363a..5f0d579932c6 100644 --- a/arch/x86/mm/pti.c +++ b/arch/x86/mm/pti.c @@ -132,7 +132,7 @@ pgd_t __pti_set_user_pgtbl(pgd_t *pgdp, pgd_t pgd) * Top-level entries added to init_mm's usermode pgd after boot * will not be automatically propagated to other mms. */ - if (!pgdp_maps_userspace(pgdp)) + if (!pgdp_maps_userspace(pgdp) || (pgd.pgd & _PAGE_NOPTISHADOW)) return pgd; /* |