The patch below does not apply to the 4.5-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable@xxxxxxxxxxxxxxx>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From a6cdf1c08cbfe0818a3d8042844d75bf74fd82bd Mon Sep 17 00:00:00 2001 From: Catalin Marinas <catalin.marinas@xxxxxxx> Date: Mon, 21 Mar 2016 11:00:17 +0000 Subject: [PATCH] kvm: arm64: Disable compiler instrumentation for hypervisor code With the recent rewrite of the arm64 KVM hypervisor code in C, enabling certain options like KASAN would allow the compiler to generate memory accesses or function calls to addresses not mapped at EL2. This patch disables the compiler instrumentation on the arm64 hypervisor code for gcov-based profiling (GCOV_KERNEL), undefined behaviour sanity checker (UBSAN) and kernel address sanitizer (KASAN). Signed-off-by: Catalin Marinas <catalin.marinas@xxxxxxx> Cc: Christoffer Dall <christoffer.dall@xxxxxxxxxx> Cc: Marc Zyngier <marc.zyngier@xxxxxxx> Cc: Paolo Bonzini <pbonzini@xxxxxxxxxx> Cc: <stable@xxxxxxxxxxxxxxx> # 4.5+ Signed-off-by: Christoffer Dall <christoffer.dall@xxxxxxxxxx> diff --git a/arch/arm64/kvm/hyp/Makefile b/arch/arm64/kvm/hyp/Makefile index b6a8fc5ad1af..778d0effa2af 100644 --- a/arch/arm64/kvm/hyp/Makefile +++ b/arch/arm64/kvm/hyp/Makefile @@ -16,3 +16,7 @@ obj-$(CONFIG_KVM_ARM_HOST) += fpsimd.o obj-$(CONFIG_KVM_ARM_HOST) += tlb.o obj-$(CONFIG_KVM_ARM_HOST) += hyp-entry.o obj-$(CONFIG_KVM_ARM_HOST) += s2-setup.o + +GCOV_PROFILE := n +KASAN_SANITIZE := n +UBSAN_SANITIZE := n -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html