Max Filippov c633544a61 xtensa: add support for KASAN ... Cover kernel addresses above 0x90000000 by the shadow map. Enable HAVE_ARCH_KASAN when MMU is enabled. Provide kasan_early_init that fills shadow map with writable copies of kasan_zero_page. Call kasan_early_init right after mmu initialization in the setup_arch. Provide kasan_init that allocates proper shadow map pages from the memblock and puts these pages into the shadow map for addresses from VMALLOC area to the end of KSEG. Call kasan_init right after memblock initialization. Don't use KASAN for the boot code, MMU and KASAN initialization and page fault handler. Make kernel stack size 4 times larger when KASAN is enabled to avoid stack overflows. GCC 7.3, 8 or newer is required to build the xtensa kernel with KASAN. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>		2017-12-16 22:37:12 -08:00
..
gcov-profile-all	docs: remove all references to AVR32 architecture	2017-05-01 09:27:15 +02:00
KASAN	xtensa: add support for KASAN	2017-12-16 22:37:12 -08:00
kgdb	docs: remove all references to AVR32 architecture	2017-05-01 09:27:15 +02:00
kprobes	docs: remove all references to AVR32 architecture	2017-05-01 09:27:15 +02:00
kprobes-on-ftrace	powerpc updates for 4.12 part 1.	2017-05-05 11:36:44 -07:00
kretprobes	docs: remove all references to AVR32 architecture	2017-05-01 09:27:15 +02:00
optprobes	docs: remove all references to AVR32 architecture	2017-05-01 09:27:15 +02:00
stackprotector	xtensa: enable stack protector	2017-12-16 22:37:07 -08:00
uprobes	docs: remove all references to AVR32 architecture	2017-05-01 09:27:15 +02:00
user-ret-profiler	docs: remove all references to AVR32 architecture	2017-05-01 09:27:15 +02:00