FAILED: patch "[PATCH] kvm: arm64: Disable compiler instrumentation for hypervisor" failed to apply to 4.5-stable tree
Subsystems (3)
[email protected]
maintainerThe 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 <[email protected]>.
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
Quoted 1 line
From
a6cdf1c08cbfe0818a3d8042844d75bf74fd82bdMon Sep 17 00:00:00 2001
From: Catalin Marinas <[email protected]>
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).
arch/arm64/kvm/hyp/Makefile +4 -0
@@ -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