On Tue, Jan 28, 2020 at 10:49:32AM -0800, Sami Tolvanen wrote: > Filter out CC_FLAGS_SCS and -ffixed-x18 for code that runs at a > different exception level. > > Suggested-by: Steven Rostedt (VMware) <rostedt@xxxxxxxxxxx> > Signed-off-by: Sami Tolvanen <samitolvanen@xxxxxxxxxx> > Reviewed-by: Kees Cook <keescook@xxxxxxxxxxxx> > Reviewed-by: Mark Rutland <mark.rutland@xxxxxxx> > --- > arch/arm64/kvm/hyp/Makefile | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/arch/arm64/kvm/hyp/Makefile b/arch/arm64/kvm/hyp/Makefile > index ea710f674cb6..5843adef9ef6 100644 > --- a/arch/arm64/kvm/hyp/Makefile > +++ b/arch/arm64/kvm/hyp/Makefile > @@ -28,3 +28,6 @@ GCOV_PROFILE := n > KASAN_SANITIZE := n > UBSAN_SANITIZE := n > KCOV_INSTRUMENT := n > + > +# remove the SCS flags from all objects in this directory > +KBUILD_CFLAGS := $(filter-out -ffixed-x18 $(CC_FLAGS_SCS), $(KBUILD_CFLAGS)) Acked-by: Will Deacon <will@xxxxxxxxxx> Will
