On Mon, Jan 18, 2021 at 06:30:29PM +0000, Vincenzo Frascino wrote: > MTE provides an asynchronous mode for detecting tag exceptions. In > particular instead of triggering a fault the arm64 core updates a > register which is checked by the kernel after the asynchronous tag > check fault has occurred. > > Add support for MTE asynchronous mode. > > The exception handling mechanism will be added with a future patch. > > Note: KASAN HW activates async mode via kasan.mode kernel parameter. > The default mode is set to synchronous. > The code that verifies the status of TFSR_EL1 will be added with a > future patch. > > Cc: Catalin Marinas <[email protected]> > Cc: Will Deacon <[email protected]> > Signed-off-by: Vincenzo Frascino <[email protected]>
Reviewed-by: Catalin Marinas <[email protected]>
