linux-kernel - [PATCH 17/18] arm64: disable SCS for hypervisor code

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Message-Id: <20191018161033.261971-18-samitolvanen@google.com>
Date:   Fri, 18 Oct 2019 09:10:32 -0700
From:   Sami Tolvanen <samitolvanen@...gle.com>
To:     Will Deacon <will@...nel.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Ard Biesheuvel <ard.biesheuvel@...aro.org>
Cc:     Dave Martin <Dave.Martin@....com>,
        Kees Cook <keescook@...omium.org>,
        Laura Abbott <labbott@...hat.com>,
        Mark Rutland <mark.rutland@....com>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        clang-built-linux@...glegroups.com,
        kernel-hardening@...ts.openwall.com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Sami Tolvanen <samitolvanen@...gle.com>
Subject: [PATCH 17/18] arm64: disable SCS for hypervisor code

Signed-off-by: Sami Tolvanen <samitolvanen@...gle.com>
---
 arch/arm64/kvm/hyp/Makefile | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/hyp/Makefile b/arch/arm64/kvm/hyp/Makefile
index ea710f674cb6..96073d81cb3b 100644
--- a/arch/arm64/kvm/hyp/Makefile
+++ b/arch/arm64/kvm/hyp/Makefile
@@ -4,7 +4,8 @@
 #
 
 ccflags-y += -fno-stack-protector -DDISABLE_BRANCH_PROFILING \
-		$(DISABLE_STACKLEAK_PLUGIN)
+		$(DISABLE_STACKLEAK_PLUGIN) \
+		$(DISABLE_SCS)
 
 KVM=../../../../virt/kvm
 
-- 
2.23.0.866.gb869b98d4c-goog