linux-kernel - [PATCH 3/4] kvm/arm64: simplify CC instrumentation opt-out

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Mon, 16 Oct 2017 14:24:39 +0100
From:   Mark Rutland <mark.rutland@....com>
To:     linux-arm-kernel@...ts.infradead.org
Cc:     linux-kernel@...r.kernel.org, adech.fo@...il.com,
        aryabinin@...tuozzo.com, catalin.marinas@....com,
        christoffer.dall@...aro.org, dvyukov@...gle.com,
        linux-kbuild@...r.kernel.org, mark.rutland@....com,
        mark.zyngier@....com, mmarek@...e.com, will.deacon@....com,
        yamada.masahiro@...ionext.com
Subject: [PATCH 3/4] kvm/arm64: simplify CC instrumentation opt-out

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@....com>
Cc: Catalin Marinas <catalin.marinas@....com>
Cc: Christoffer Dall <christoffer.dall@...aro.org>
Cc: Marc Zyngier <mark.zyngier@....com>
Cc: Will Deacon <will.deacon@....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