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authorMarc Zyngier <marc.zyngier@arm.com>2017-05-02 14:30:38 +0100
committerChristoffer Dall <cdall@linaro.org>2017-05-15 11:31:38 +0200
commit501ad27c67ed0b90df465f23d33e9aed64058a47 (patch)
tree2c87761dd6fed5c2699d5e01d26721d2447e9c24
parentcde13b5dad60471886a3bccb4f4134c647c4a9dc (diff)
arm: KVM: Do not use stack-protector to compile HYP code
We like living dangerously. Nothing explicitely forbids stack-protector to be used in the HYP code, while distributions routinely compile their kernel with it. We're just lucky that no code actually triggers the instrumentation. Let's not try our luck for much longer, and disable stack-protector for code living at HYP. Cc: stable@vger.kernel.org Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Acked-by: Christoffer Dall <cdall@linaro.org> Signed-off-by: Christoffer Dall <cdall@linaro.org>
-rw-r--r--arch/arm/kvm/hyp/Makefile2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm/kvm/hyp/Makefile b/arch/arm/kvm/hyp/Makefile
index 3023bb530edf..8679405b0b2b 100644
--- a/arch/arm/kvm/hyp/Makefile
+++ b/arch/arm/kvm/hyp/Makefile
@@ -2,6 +2,8 @@
# Makefile for Kernel-based Virtual Machine module, HYP part
#
+ccflags-y += -fno-stack-protector
+
KVM=../../../../virt/kvm
obj-$(CONFIG_KVM_ARM_HOST) += $(KVM)/arm/hyp/vgic-v2-sr.o