Commit f9a026e3 authored Jun 25, 2020 by David Brazdil Committed by Marc Zyngier Jul 05, 2020

KVM: arm64: Lift instrumentation restrictions on VHE

With VHE and nVHE executable code completely separated, remove build config
that disabled GCOV/KASAN/UBSAN/KCOV instrumentation for VHE as these now
execute under the same memory mappings as the rest of the kernel.

No violations are currently being reported by either KASAN or UBSAN.

Signed-off-by: David Brazdil <dbrazdil@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20200625131420.71444-16-dbrazdil@google.com

parent c50cb043

arch/arm64/kvm/hyp/vhe/Makefile

+0 −8

Original line number	Diff line number	Diff line
		@@ -9,11 +9,3 @@ ccflags-y := -D__KVM_VHE_HYPERVISOR__
		obj-y := timer-sr.o sysreg-sr.o debug-sr.o switch.o tlb.o
		obj-y += ../vgic-v3-sr.o ../aarch32.o ../vgic-v2-cpuif-proxy.o ../entry.o \
		../fpsimd.o ../hyp-entry.o

		# KVM code is run at a different exception code with a different map, so
		# compiler instrumentation that inserts callbacks or checks into the code may
		# cause crashes. Just disable it.
		GCOV_PROFILE := n
		KASAN_SANITIZE := n
		UBSAN_SANITIZE := n
		KCOV_INSTRUMENT := n