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authorAlexander Popov <[email protected]>2015-07-02 12:09:34 +0300
committerIngo Molnar <[email protected]>2015-07-06 14:53:13 +0200
commit5d5aa3cfca5cf74cd928daf3674642e6004328d1 (patch)
tree42d53dc7979c3c9141cb7aac20107b9c626ee665 /tools/perf/scripts/python/call-graph-from-postgresql.py
parentd0f77d4d04b222a817925d33ba3589b190bfa863 (diff)
x86/kasan: Fix KASAN shadow region page tables
Currently KASAN shadow region page tables created without respect of physical offset (phys_base). This causes kernel halt when phys_base is not zero. So let's initialize KASAN shadow region page tables in kasan_early_init() using __pa_nodebug() which considers phys_base. This patch also separates x86_64_start_kernel() from KASAN low level details by moving kasan_map_early_shadow(init_level4_pgt) into kasan_early_init(). Remove the comment before clear_bss() which stopped bringing much profit to the code readability. Otherwise describing all the new order dependencies would be too verbose. Signed-off-by: Alexander Popov <[email protected]> Signed-off-by: Andrey Ryabinin <[email protected]> Cc: <[email protected]> # 4.0+ Cc: Alexander Potapenko <[email protected]> Cc: Andrey Konovalov <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: Dmitry Vyukov <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Thomas Gleixner <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]>
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