Re: [PATCH v6 13/15] arm64: disable SCS for hypervisor code
From: Will Deacon <will@kernel.org>
Date: 2020-01-16 17:47:53
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On Fri, Dec 06, 2019 at 02:13:49PM -0800, Sami Tolvanen wrote:
quoted hunk ↗ jump to hunk
Filter out CC_FLAGS_SCS for code that runs at a different exception level. Suggested-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Signed-off-by: Sami Tolvanen <samitolvanen@google.com> Reviewed-by: Kees Cook <redacted> Reviewed-by: Mark Rutland <mark.rutland@arm.com> --- 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..17ea3da325e9 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 $(CC_FLAGS_SCS), $(KBUILD_CFLAGS))
Same comment as for the vDSO; can we remove the -ffixed-x18 as well? Will _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel