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From: Mark Rutland <mark.rutland@arm.com>
To: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org, adech.fo@gmail.com,
	aryabinin@virtuozzo.com, catalin.marinas@arm.com,
	christoffer.dall@linaro.org, dvyukov@google.com,
	linux-kbuild@vger.kernel.org, mark.rutland@arm.com,
	mark.zyngier@arm.com, mmarek@suse.com, will.deacon@arm.com,
	yamada.masahiro@socionext.com
Subject: [PATCH 3/4] kvm/arm64: simplify CC instrumentation opt-out
Date: Mon, 16 Oct 2017 14:24:39 +0100	[thread overview]
Message-ID: <20171016132440.38098-4-mark.rutland@arm.com> (raw)
In-Reply-To: <20171016132440.38098-1-mark.rutland@arm.com>

Now that we can opt out of all instrumentation with a single option,
make use of this in the KVM hyp code. Hopefully, this will also avoid
fragility as new options are introduced.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Christoffer Dall <christoffer.dall@linaro.org>
Cc: Marc Zyngier <mark.zyngier@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
---
 arch/arm64/kvm/hyp/Makefile | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/arch/arm64/kvm/hyp/Makefile b/arch/arm64/kvm/hyp/Makefile
index 14c4e3b14bcb..a8a212eb66f1 100644
--- a/arch/arm64/kvm/hyp/Makefile
+++ b/arch/arm64/kvm/hyp/Makefile
@@ -22,7 +22,4 @@ obj-$(CONFIG_KVM_ARM_HOST) += s2-setup.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
+CC_INSTRUMENT	:= n
-- 
2.11.0

WARNING: multiple messages have this Message-ID (diff)
From: mark.rutland@arm.com (Mark Rutland)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 3/4] kvm/arm64: simplify CC instrumentation opt-out
Date: Mon, 16 Oct 2017 14:24:39 +0100	[thread overview]
Message-ID: <20171016132440.38098-4-mark.rutland@arm.com> (raw)
In-Reply-To: <20171016132440.38098-1-mark.rutland@arm.com>

Now that we can opt out of all instrumentation with a single option,
make use of this in the KVM hyp code. Hopefully, this will also avoid
fragility as new options are introduced.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Christoffer Dall <christoffer.dall@linaro.org>
Cc: Marc Zyngier <mark.zyngier@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
---
 arch/arm64/kvm/hyp/Makefile | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/arch/arm64/kvm/hyp/Makefile b/arch/arm64/kvm/hyp/Makefile
index 14c4e3b14bcb..a8a212eb66f1 100644
--- a/arch/arm64/kvm/hyp/Makefile
+++ b/arch/arm64/kvm/hyp/Makefile
@@ -22,7 +22,4 @@ obj-$(CONFIG_KVM_ARM_HOST) += s2-setup.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
+CC_INSTRUMENT	:= n
-- 
2.11.0

  parent reply	other threads:[~2017-10-16 13:25 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-10-16 13:24 [PATCH 0/4] Cleanup instrumentation avoidance Mark Rutland
2017-10-16 13:24 ` Mark Rutland
2017-10-16 13:24 ` [PATCH 1/4] kbuild: allow global override of CC instrumentation Mark Rutland
2017-10-16 13:24   ` Mark Rutland
2017-10-17 10:37   ` Will Deacon
2017-10-17 10:37     ` Will Deacon
2017-10-16 13:24 ` [PATCH 2/4] arm64: prevent instrumentation of LL/SC atomics Mark Rutland
2017-10-16 13:24   ` Mark Rutland
2017-10-17 10:03   ` Will Deacon
2017-10-17 10:03     ` Will Deacon
2017-10-17 10:54     ` Mark Rutland
2017-10-17 10:54       ` Mark Rutland
2017-10-17 10:58       ` Will Deacon
2017-10-17 10:58         ` Will Deacon
2017-10-17 11:10         ` Mark Rutland
2017-10-17 11:10           ` Mark Rutland
2017-10-17 11:38           ` Will Deacon
2017-10-17 11:38             ` Will Deacon
2017-10-17 12:55             ` Mark Rutland
2017-10-17 12:55               ` Mark Rutland
2017-10-18 14:16               ` Will Deacon
2017-10-18 14:16                 ` Will Deacon
2017-10-16 13:24 ` Mark Rutland [this message]
2017-10-16 13:24   ` [PATCH 3/4] kvm/arm64: simplify CC instrumentation opt-out Mark Rutland
2017-10-17 14:50   ` Christoffer Dall
2017-10-17 14:50     ` Christoffer Dall
2017-10-16 13:24 ` [PATCH 4/4] arm64: vdso: remove pointless gcov option Mark Rutland
2017-10-16 13:24   ` Mark Rutland
2017-10-17 13:56   ` Mark Rutland
2017-10-17 13:56     ` Mark Rutland
2017-10-16 13:35 ` [PATCH 0/4] Cleanup instrumentation avoidance Mark Rutland
2017-10-16 13:35   ` Mark Rutland

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