config HAVE_ARCH_KASAN bool if HAVE_ARCH_KASAN config KASAN bool "KASan: runtime memory debugger" depends on SLUB || (SLAB && !DEBUG_SLAB) select CONSTRUCTORS select STACKDEPOT help Enables kernel address sanitizer - runtime memory debugger, designed to find out-of-bounds accesses and use-after-free bugs. This is strictly a debugging feature and it requires a gcc version of 4.9.2 or later. Detection of out of bounds accesses to stack or global variables requires gcc 5.0 or later. This feature consumes about 1/8 of available memory and brings about ~x3 performance slowdown. For better error detection enable CONFIG_STACKTRACE. Currently CONFIG_KASAN doesn't work with CONFIG_DEBUG_SLAB (the resulting kernel does not boot). choice prompt "Instrumentation type" depends on KASAN default KASAN_OUTLINE config KASAN_OUTLINE bool "Outline instrumentation" help Before every memory access compiler insert function call __asan_load*/__asan_store*. These functions performs check of shadow memory. This is slower than inline instrumentation, however it doesn't bloat size of kernel's .text section so much as inline does. config KASAN_INLINE bool "Inline instrumentation" help Compiler directly inserts code checking shadow memory before memory accesses. This is faster than outline (in some workloads it gives about x2 boost over outline instrumentation), but make kernel's .text size much bigger. This requires a gcc version of 5.0 or later. endchoice config TEST_KASAN tristate "Module for testing kasan for bug detection" depends on m && KASAN help This is a test module doing various nasty things like out of bounds accesses, use after free. It is useful for testing kernel debugging features like kernel address sanitizer. endif afb0b9b6172d77e98eb72b94'>treecommitdiff
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authorGiovanni Cabiddu <giovanni.cabiddu@intel.com>2016-12-22 15:00:12 +0000
committerHerbert Xu <herbert@gondor.apana.org.au>2017-02-02 21:54:52 +0800
commit3484ecbe0e9deb94afb0b9b6172d77e98eb72b94 (patch)
tree4d4be0d20d4946c51ef47a882d78c9934a219c0e /include/net/phonet
parent11e3b725cfc282efe9d4a354153e99d86a16af08 (diff)
crypto: qat - fix bar discovery for c62x
Some accelerators of the c62x series have only two bars. This patch skips BAR0 if the accelerator does not have it. Cc: <stable@vger.kernel.org> Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'include/net/phonet')