diff options
Diffstat (limited to 'arch/um/Kconfig')
| -rw-r--r-- | arch/um/Kconfig | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/um/Kconfig b/arch/um/Kconfig index 7b0f953e7d6c..78de31ac1da7 100644 --- a/arch/um/Kconfig +++ b/arch/um/Kconfig @@ -12,6 +12,8 @@ config UML select ARCH_HAS_STRNLEN_USER select ARCH_NO_PREEMPT select HAVE_ARCH_AUDITSYSCALL + select HAVE_ARCH_KASAN if X86_64 + select HAVE_ARCH_KASAN_VMALLOC if HAVE_ARCH_KASAN select HAVE_ARCH_SECCOMP_FILTER select HAVE_ASM_MODVERSIONS select HAVE_UID16 @@ -219,6 +221,19 @@ config UML_TIME_TRAVEL_SUPPORT It is safe to say Y, but you probably don't need this. +config KASAN_SHADOW_OFFSET + hex + depends on KASAN + default 0x100000000000 + help + This is the offset at which the ~16TB of shadow memory is + mapped and used by KASAN for memory debugging. This can be any + address that has at least KASAN_SHADOW_SIZE (total address space divided + by 8) amount of space so that the KASAN shadow memory does not conflict + with anything. The default is 0x100000000000, which works even if mem is + set to a large value. On low-memory systems, try 0x7fff8000, as it fits + into the immediate of most instructions, improving performance. + endmenu source "arch/um/drivers/Kconfig" |