diff options
Diffstat (limited to 'arch/x86/platform/efi/efi_64.c')
| -rw-r--r-- | arch/x86/platform/efi/efi_64.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86/platform/efi/efi_64.c b/arch/x86/platform/efi/efi_64.c index 2e6fe430cb07..232acf418cfb 100644 --- a/arch/x86/platform/efi/efi_64.c +++ b/arch/x86/platform/efi/efi_64.c @@ -389,11 +389,15 @@ static int __init efi_update_mappings(efi_memory_desc_t *md, unsigned long pf) return err1 || err2; } +bool efi_disable_ibt_for_runtime __ro_after_init = true; + static int __init efi_update_mem_attr(struct mm_struct *mm, efi_memory_desc_t *md, bool has_ibt) { unsigned long pf = 0; + efi_disable_ibt_for_runtime |= !has_ibt; + if (md->attribute & EFI_MEMORY_XP) pf |= _PAGE_NX; @@ -415,6 +419,7 @@ void __init efi_runtime_update_mappings(void) * exists, since it is intended to supersede EFI_PROPERTIES_TABLE. */ if (efi_enabled(EFI_MEM_ATTR)) { + efi_disable_ibt_for_runtime = false; efi_memattr_apply_permissions(NULL, efi_update_mem_attr); return; } |