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authorMarc Zyngier <marc.zyngier@arm.com>2017-05-02 14:30:37 +0100
committerChristoffer Dall <cdall@linaro.org>2017-05-15 11:31:16 +0200
commitcde13b5dad60471886a3bccb4f4134c647c4a9dc (patch)
tree5f27568046f10d886aef22b74007ef6870146209 /arch/arm64
parentARM: KVM: Fix tracepoint generation after move to virt/kvm/arm/ (diff)
downloadlinux-dev-cde13b5dad60471886a3bccb4f4134c647c4a9dc.tar.xz
linux-dev-cde13b5dad60471886a3bccb4f4134c647c4a9dc.zip
arm64: KVM: Do not use stack-protector to compile EL2 code
We like living dangerously. Nothing explicitely forbids stack-protector to be used in the EL2 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 EL2. 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>
Diffstat (limited to '')
-rw-r--r--arch/arm64/kvm/hyp/Makefile2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm64/kvm/hyp/Makefile b/arch/arm64/kvm/hyp/Makefile
index aaf42ae8d8c3..14c4e3b14bcb 100644
--- a/arch/arm64/kvm/hyp/Makefile
+++ b/arch/arm64/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