Subject: [PATCH v6 13/15] arm64: disable SCS for hypervisor code

From: Sami Tolvanen <[email-masked]>
Date: Fri, 6 Dec 2019 14:13:49 -0800

Filter out CC_FLAGS_SCS for code that runs at a different exception
level.

Suggested-by: Steven Rostedt (VMware) <[email-masked]>
Signed-off-by: Sami Tolvanen <[email-masked]>
Reviewed-by: Kees Cook <[email-masked]>
Reviewed-by: Mark Rutland <[email-masked]>
---
 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))
-- 
2.24.0.393.g34dc348eaf-goog

_______________________________________________
linux-arm-kernel mailing list
[email-masked]
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel