[PATCH 27/56] KVM: arm64: Lift instrumentation restrictions on VHE

[Marc Zyngier]

From: David Brazdil <dbrazdil at google.com>

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 at google.com>
Signed-off-by: Marc Zyngier <maz at kernel.org>
Link: https://lore.kernel.org/r/20200625131420.71444-16-dbrazdil@google.com
---
 arch/arm64/kvm/hyp/vhe/Makefile | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/arch/arm64/kvm/hyp/vhe/Makefile b/arch/arm64/kvm/hyp/vhe/Makefile
index 090fd1e14be2..461e97c375cc 100644
--- a/arch/arm64/kvm/hyp/vhe/Makefile
+++ b/arch/arm64/kvm/hyp/vhe/Makefile
@@ -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
-- 
2.27.0