On Wed, Nov 11, 2020 at 4:58 PM Alexander Potapenko <glider@xxxxxxxxxx> wrote: > > On Tue, Nov 10, 2020 at 11:12 PM Andrey Konovalov <andreyknvl@xxxxxxxxxx> wrote: > > > > This patch adds a configuration option for a new KASAN mode called > > hardware tag-based KASAN. This mode uses the memory tagging approach > > like the software tag-based mode, but relies on arm64 Memory Tagging > > Extension feature for tag management and access checking. > > > > Signed-off-by: Andrey Konovalov <andreyknvl@xxxxxxxxxx> > > Co-developed-by: Vincenzo Frascino <vincenzo.frascino@xxxxxxx> > > Signed-off-by: Vincenzo Frascino <vincenzo.frascino@xxxxxxx> > > Reviewed-by: Marco Elver <elver@xxxxxxxxxx> > > --- > > Change-Id: I246c2def9fffa6563278db1bddfbe742ca7bdefe > > --- > > lib/Kconfig.kasan | 58 +++++++++++++++++++++++++++++++++-------------- > > 1 file changed, 41 insertions(+), 17 deletions(-) > > > > diff --git a/lib/Kconfig.kasan b/lib/Kconfig.kasan > > index ec59a0e26d09..e5f27ec8b254 100644 > > --- a/lib/Kconfig.kasan > > +++ b/lib/Kconfig.kasan > > @@ -6,7 +6,10 @@ config HAVE_ARCH_KASAN > > config HAVE_ARCH_KASAN_SW_TAGS > > bool > > > > -config HAVE_ARCH_KASAN_VMALLOC > > +config HAVE_ARCH_KASAN_HW_TAGS > > + bool > > + > > +config HAVE_ARCH_KASAN_VMALLOC > > bool > > > > config CC_HAS_KASAN_GENERIC > > @@ -20,11 +23,11 @@ config CC_HAS_WORKING_NOSANITIZE_ADDRESS > It might make sense to add a comment to > CC_HAS_WORKING_NOSANITIZE_ADDRESS describing which modes need it (and > why). OK, will do in v10, thanks!
