diff options
-rw-r--r-- | arch/x86/include/asm/desc.h | 9 | ||||
-rw-r--r-- | arch/x86/kernel/head64.c | 6 | ||||
-rw-r--r-- | arch/x86/kernel/idt.c | 12 |
3 files changed, 22 insertions, 5 deletions
diff --git a/arch/x86/include/asm/desc.h b/arch/x86/include/asm/desc.h index 33aff45f58ea..5a3cdeb7cb03 100644 --- a/arch/x86/include/asm/desc.h +++ b/arch/x86/include/asm/desc.h @@ -504,6 +504,15 @@ static inline void load_current_idt(void) load_idt((const struct desc_ptr *)&idt_descr); } +extern void idt_setup_early_handler(void); +extern void idt_setup_early_traps(void); + +#ifdef CONFIG_X86_64 +extern void idt_setup_early_pf(void); +#else +static inline void idt_setup_early_pf(void) { } +#endif + extern void idt_invalidate(void *addr); #endif /* _ASM_X86_DESC_H */ diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c index 9ba79543d9ee..d6ab034bd65f 100644 --- a/arch/x86/kernel/head64.c +++ b/arch/x86/kernel/head64.c @@ -255,8 +255,6 @@ static void __init copy_bootdata(char *real_mode_data) asmlinkage __visible void __init x86_64_start_kernel(char * real_mode_data) { - int i; - /* * Build-time sanity checks on the kernel image and module * area mappings. (these are purely build-time and produce no code) @@ -282,9 +280,7 @@ asmlinkage __visible void __init x86_64_start_kernel(char * real_mode_data) kasan_early_init(); - for (i = 0; i < NUM_EXCEPTION_VECTORS; i++) - set_intr_gate(i, early_idt_handler_array[i]); - load_idt((const struct desc_ptr *)&idt_descr); + idt_setup_early_handler(); copy_bootdata(__va(real_mode_data)); diff --git a/arch/x86/kernel/idt.c b/arch/x86/kernel/idt.c index cd4658c1e405..a1475810059c 100644 --- a/arch/x86/kernel/idt.c +++ b/arch/x86/kernel/idt.c @@ -26,6 +26,18 @@ const struct desc_ptr debug_idt_descr = { #endif /** + * idt_setup_early_handler - Initializes the idt table with early handlers + */ +void __init idt_setup_early_handler(void) +{ + int i; + + for (i = 0; i < NUM_EXCEPTION_VECTORS; i++) + set_intr_gate(i, early_idt_handler_array[i]); + load_idt(&idt_descr); +} + +/** * idt_invalidate - Invalidate interrupt descriptor table * @addr: The virtual address of the 'invalid' IDT */ |