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| author | Andrey Ryabinin <a.ryabinin@samsung.com> | 2015-07-02 12:09:33 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2015-07-06 15:53:13 +0300 |
| commit | d0f77d4d04b222a817925d33ba3589b190bfa863 (patch) | |
| tree | ecf9850be071f9a35852baa471d1d6b7b5c52401 /arch/x86/kernel/head_64.S | |
| parent | 5aac644a9944bea93b4f05ced1883a902a2535f6 (diff) | |
| download | linux-d0f77d4d04b222a817925d33ba3589b190bfa863.tar.xz | |
x86/init: Clear 'init_level4_pgt' earlier
Currently x86_64_start_kernel() has two KASAN related
function calls. The first call maps shadow to early_level4_pgt,
the second maps shadow to init_level4_pgt.
If we move clear_page(init_level4_pgt) earlier, we could hide
KASAN low level detail from generic x86_64 initialization code.
The next patch will do it.
Signed-off-by: Andrey Ryabinin <a.ryabinin@samsung.com>
Cc: <stable@vger.kernel.org> # 4.0+
Cc: Alexander Popov <alpopov@ptsecurity.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Konovalov <adech.fo@gmail.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1435828178-10975-2-git-send-email-a.ryabinin@samsung.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/kernel/head_64.S')
0 files changed, 0 insertions, 0 deletions