diff options
Diffstat (limited to 'arch/x86/mm/pti.c')
| -rw-r--r-- | arch/x86/mm/pti.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/x86/mm/pti.c b/arch/x86/mm/pti.c index 59290356f19f..0e78797650a7 100644 --- a/arch/x86/mm/pti.c +++ b/arch/x86/mm/pti.c @@ -288,6 +288,15 @@ static void __init pti_clone_user_shared(void) } /* + * Clone the populated PMDs of the entry and irqentry text and force it RO. + */ +static void __init pti_clone_entry_text(void) +{ + pti_clone_pmds((unsigned long) __entry_text_start, + (unsigned long) __irqentry_text_end, _PAGE_RW); +} + +/* * Initialize kernel page table isolation */ void __init pti_init(void) @@ -298,4 +307,5 @@ void __init pti_init(void) pr_info("enabled\n"); pti_clone_user_shared(); + pti_clone_entry_text(); } |