From: David Brazdil <dbrazdil@google.com>
To: Marc Zyngier <maz@kernel.org>, Will Deacon <will@kernel.org>,
Catalin Marinas <catalin.marinas@arm.com>,
James Morse <james.morse@arm.com>,
Julien Thierry <julien.thierry.kdev@gmail.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>
Cc: kvmarm@lists.cs.columbia.edu,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, android-kvm@google.com,
kernel-team@android.com, David Brazdil <dbrazdil@google.com>
Subject: [PATCH v4 15/15] arm64: kvm: Lift instrumentation restrictions on VHE
Date: Thu, 25 Jun 2020 14:14:20 +0100 [thread overview]
Message-ID: <20200625131420.71444-16-dbrazdil@google.com> (raw)
In-Reply-To: <20200625131420.71444-1-dbrazdil@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@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
WARNING: multiple messages have this Message-ID (diff)
From: David Brazdil <dbrazdil@google.com>
To: Marc Zyngier <maz@kernel.org>, Will Deacon <will@kernel.org>,
Catalin Marinas <catalin.marinas@arm.com>,
James Morse <james.morse@arm.com>,
Julien Thierry <julien.thierry.kdev@gmail.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>
Cc: android-kvm@google.com, linux-kernel@vger.kernel.org,
kernel-team@android.com, kvmarm@lists.cs.columbia.edu,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH v4 15/15] arm64: kvm: Lift instrumentation restrictions on VHE
Date: Thu, 25 Jun 2020 14:14:20 +0100 [thread overview]
Message-ID: <20200625131420.71444-16-dbrazdil@google.com> (raw)
In-Reply-To: <20200625131420.71444-1-dbrazdil@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@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
_______________________________________________
kvmarm mailing list
kvmarm@lists.cs.columbia.edu
https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
WARNING: multiple messages have this Message-ID (diff)
From: David Brazdil <dbrazdil@google.com>
To: Marc Zyngier <maz@kernel.org>, Will Deacon <will@kernel.org>,
Catalin Marinas <catalin.marinas@arm.com>,
James Morse <james.morse@arm.com>,
Julien Thierry <julien.thierry.kdev@gmail.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>
Cc: android-kvm@google.com, linux-kernel@vger.kernel.org,
David Brazdil <dbrazdil@google.com>,
kernel-team@android.com, kvmarm@lists.cs.columbia.edu,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH v4 15/15] arm64: kvm: Lift instrumentation restrictions on VHE
Date: Thu, 25 Jun 2020 14:14:20 +0100 [thread overview]
Message-ID: <20200625131420.71444-16-dbrazdil@google.com> (raw)
In-Reply-To: <20200625131420.71444-1-dbrazdil@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@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
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2020-06-25 13:15 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-25 13:14 [PATCH v4 00/15] Split off nVHE hyp code David Brazdil
2020-06-25 13:14 ` David Brazdil
2020-06-25 13:14 ` David Brazdil
2020-06-25 13:14 ` [PATCH v4 01/15] arm64: kvm: Fix symbol dependency in __hyp_call_panic_nvhe David Brazdil
2020-06-25 13:14 ` David Brazdil
2020-06-25 13:14 ` David Brazdil
2020-06-25 13:14 ` [PATCH v4 02/15] arm64: kvm: Move __smccc_workaround_1_smc to .rodata David Brazdil
2020-06-25 13:14 ` David Brazdil
2020-06-25 13:14 ` David Brazdil
2020-06-25 13:14 ` [PATCH v4 03/15] arm64: kvm: Add build rules for separate VHE/nVHE object files David Brazdil
2020-06-25 13:14 ` David Brazdil
2020-06-25 13:14 ` David Brazdil
2020-06-25 13:14 ` [PATCH v4 04/15] arm64: kvm: Use build-time defines in has_vhe() David Brazdil
2020-06-25 13:14 ` David Brazdil
2020-06-25 13:14 ` David Brazdil
2020-06-25 13:14 ` [PATCH v4 05/15] arm64: kvm: Handle calls to prefixed hyp functions David Brazdil
2020-06-25 13:14 ` David Brazdil
2020-06-25 13:14 ` David Brazdil
2020-06-25 13:14 ` [PATCH v4 06/15] arm64: kvm: Build hyp-entry.S separately for VHE/nVHE David Brazdil
2020-06-25 13:14 ` David Brazdil
2020-06-25 13:14 ` David Brazdil
2020-06-25 13:14 ` [PATCH v4 07/15] arm64: kvm: Move hyp-init.S to nVHE David Brazdil
2020-06-25 13:14 ` David Brazdil
2020-06-25 13:14 ` David Brazdil
2020-07-05 11:42 ` Marc Zyngier
2020-07-05 11:42 ` Marc Zyngier
2020-07-05 11:42 ` Marc Zyngier
2020-06-25 13:14 ` [PATCH v4 08/15] arm64: kvm: Duplicate hyp/tlb.c for VHE/nVHE David Brazdil
2020-06-25 13:14 ` David Brazdil
2020-06-25 13:14 ` David Brazdil
2020-07-05 12:00 ` Marc Zyngier
2020-07-05 12:00 ` Marc Zyngier
2020-07-05 12:00 ` Marc Zyngier
2020-07-05 13:45 ` Marc Zyngier
2020-07-05 13:45 ` Marc Zyngier
2020-07-05 13:45 ` Marc Zyngier
2020-06-25 13:14 ` [PATCH v4 09/15] arm64: kvm: Split hyp/switch.c to VHE/nVHE David Brazdil
2020-06-25 13:14 ` David Brazdil
2020-06-25 13:14 ` David Brazdil
2020-06-25 13:14 ` [PATCH v4 10/15] arm64: kvm: Split hyp/debug-sr.c " David Brazdil
2020-06-25 13:14 ` David Brazdil
2020-06-25 13:14 ` David Brazdil
2020-06-25 13:14 ` [PATCH v4 11/15] arm64: kvm: Split hyp/sysreg-sr.c " David Brazdil
2020-06-25 13:14 ` David Brazdil
2020-06-25 13:14 ` David Brazdil
2020-06-25 13:14 ` [PATCH v4 12/15] arm64: kvm: Duplicate hyp/timer-sr.c for VHE/nVHE David Brazdil
2020-06-25 13:14 ` David Brazdil
2020-06-25 13:14 ` David Brazdil
2020-06-25 13:14 ` [PATCH v4 13/15] arm64: kvm: Compile remaining hyp/ files for both VHE/nVHE David Brazdil
2020-06-25 13:14 ` David Brazdil
2020-06-25 13:14 ` David Brazdil
2020-06-25 13:14 ` [PATCH v4 14/15] arm64: kvm: Remove __hyp_text macro, use build rules instead David Brazdil
2020-06-25 13:14 ` David Brazdil
2020-06-25 13:14 ` David Brazdil
2020-06-25 13:14 ` David Brazdil [this message]
2020-06-25 13:14 ` [PATCH v4 15/15] arm64: kvm: Lift instrumentation restrictions on VHE David Brazdil
2020-06-25 13:14 ` David Brazdil
2020-07-05 17:51 ` [PATCH v4 00/15] Split off nVHE hyp code Marc Zyngier
2020-07-05 17:51 ` Marc Zyngier
2020-07-05 17:51 ` Marc Zyngier
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