diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-01-28 12:28:06 -0800 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-01-28 12:28:06 -0800 |
commit | f6170f0afbe23ad82b4a1195168949c31e3a2527 (patch) | |
tree | a589c1f05cdbc6ab6f8fef8cdcad9b8dc1a8ddf3 /arch/x86/mm | |
parent | 6da49d1abd2c2b70063f3606e3974c13d22497a1 (diff) | |
parent | 248ed51048c40d36728e70914e38bffd7821da57 (diff) | |
download | linux-next-f6170f0afbe23ad82b4a1195168949c31e3a2527.tar.gz |
Merge branch 'x86-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull misc x86 updates from Ingo Molnar:
"Misc changes:
- Enhance #GP fault printouts by distinguishing between canonical and
non-canonical address faults, and also add KASAN fault decoding.
- Fix/enhance the x86 NMI handler by putting the duration check into
a direct function call instead of an irq_work which we know to be
broken in some cases.
- Clean up do_general_protection() a bit"
* 'x86-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/nmi: Remove irq_work from the long duration NMI handler
x86/traps: Cleanup do_general_protection()
x86/kasan: Print original address on #GP
x86/dumpstack: Introduce die_addr() for die() with #GP fault address
x86/traps: Print address on #GP
x86/insn-eval: Add support for 64-bit kernel mode
Diffstat (limited to 'arch/x86/mm')
-rw-r--r-- | arch/x86/mm/kasan_init_64.c | 21 |
1 files changed, 0 insertions, 21 deletions
diff --git a/arch/x86/mm/kasan_init_64.c b/arch/x86/mm/kasan_init_64.c index cf5bc37c90ac..763e71abc0fe 100644 --- a/arch/x86/mm/kasan_init_64.c +++ b/arch/x86/mm/kasan_init_64.c @@ -288,23 +288,6 @@ static void __init kasan_shallow_populate_pgds(void *start, void *end) } while (pgd++, addr = next, addr != (unsigned long)end); } -#ifdef CONFIG_KASAN_INLINE -static int kasan_die_handler(struct notifier_block *self, - unsigned long val, - void *data) -{ - if (val == DIE_GPF) { - pr_emerg("CONFIG_KASAN_INLINE enabled\n"); - pr_emerg("GPF could be caused by NULL-ptr deref or user memory access\n"); - } - return NOTIFY_OK; -} - -static struct notifier_block kasan_die_notifier = { - .notifier_call = kasan_die_handler, -}; -#endif - void __init kasan_early_init(void) { int i; @@ -341,10 +324,6 @@ void __init kasan_init(void) int i; void *shadow_cpu_entry_begin, *shadow_cpu_entry_end; -#ifdef CONFIG_KASAN_INLINE - register_die_notifier(&kasan_die_notifier); -#endif - memcpy(early_top_pgt, init_top_pgt, sizeof(early_top_pgt)); /* |