On Thu, Aug 14, 2025 at 07:03:35AM +0200, Andrey Konovalov wrote: > On Wed, Aug 13, 2025 at 7:53 PM Yeoreum Yun <yeoreum....@arm.com> wrote: > > Since Armv8.9, FEATURE_MTE_STORE_ONLY feature is introduced to restrict > > raise of tag check fault on store operation only. > > Introcude KASAN store only mode based on this feature. > > > > KASAN store only mode restricts KASAN checks operation for store only and > > omits the checks for fetch/read operation when accessing memory. > > So it might be used not only debugging enviroment but also normal > > enviroment to check memory safty. > > > > This features can be controlled with "kasan.store_only" arguments. > > When "kasan.store_only=on", KASAN checks store only mode otherwise > > KASAN checks all operations. > > I'm thinking if we should name this "kasan.write_only" instead of > "kasan.store_only". This would align the terms with the > "kasan.fault=panic_on_write" parameter we already have. But then it > would be different from "FEATURE_MTE_STORE_ONLY", which is what Arm > documentation uses (right?).
"write_only" works for me, kasan is meant to be generic even though it currently closely follows the arm nomenclature. -- Catalin
