diff options
| -rw-r--r-- | arch/x86/mm/extable.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/arch/x86/mm/extable.c b/arch/x86/mm/extable.c index 1fb85dbe390a..5555675dadb6 100644 --- a/arch/x86/mm/extable.c +++ b/arch/x86/mm/extable.c @@ -35,3 +35,20 @@ int fixup_exception(struct pt_regs *regs) return 0; } + +/* Restricted version used during very early boot */ +int __init early_fixup_exception(unsigned long *ip) +{ + const struct exception_table_entry *fixup; + + fixup = search_exception_tables(*ip); + if (fixup) { + if (fixup->fixup < 16) + return 0; /* Not supported during early boot */ + + *ip = fixup->fixup; + return 1; + } + + return 0; +} |