From: James Morse <james.morse@arm.com> To: linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu Cc: Marc Zyngier <marc.zyngier@arm.com> Subject: [PATCH v2 0/2] Move __hyp_text code under no-asan Makefiles Date: Wed, 22 May 2019 18:47:03 +0100 [thread overview] Message-ID: <20190522174705.236469-1-james.morse@arm.com> (raw) The fancy new pmu code added its __hyp_text code in part of the tree that doesn't get covered by the no-asan/no-kcov kconfig decorations. This shows up as a hyp-panic on v8.0 hardware when the host kernel is built with debug options like kasan. This same bug has been living happily in the aarch32 emulation code since v4.9. (commit 8cebe750c4d9a "arm64: KVM: Make kvm_skip_instr32 available to HYP"). Patch 2 has the two relevant fixes tag, but won't apply cleanly before v4.19 due to the churn. Fix them both by shuffling the code around. -- Changes since v1: * Made the two functions static in patch 1, removed the header entries. Thanks, James Morse (2): KVM: arm64: Move pmu hyp code under hyp's Makefile to avoid instrumentation KVM: arm/arm64: Move cc/it checks under hyp's Makefile to avoid instrumentation arch/arm/kvm/hyp/Makefile | 1 + arch/arm64/include/asm/kvm_host.h | 3 - arch/arm64/kvm/hyp/Makefile | 1 + arch/arm64/kvm/hyp/switch.c | 39 +++++++++ arch/arm64/kvm/pmu.c | 38 --------- virt/kvm/arm/aarch32.c | 121 -------------------------- virt/kvm/arm/hyp/aarch32.c | 136 ++++++++++++++++++++++++++++++ 7 files changed, 177 insertions(+), 162 deletions(-) create mode 100644 virt/kvm/arm/hyp/aarch32.c -- 2.20.1 _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
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From: James Morse <james.morse@arm.com> To: linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu Cc: Suzuki K Pouloze <suzuki.poulose@arm.com>, Marc Zyngier <marc.zyngier@arm.com>, Julien Thierry <julien.thierry@arm.com>, Christoffer Dall <christoffer.dall@arm.com>, James Morse <james.morse@arm.com>, Andrew Murray <Andrew.Murray@arm.com> Subject: [PATCH v2 0/2] Move __hyp_text code under no-asan Makefiles Date: Wed, 22 May 2019 18:47:03 +0100 [thread overview] Message-ID: <20190522174705.236469-1-james.morse@arm.com> (raw) The fancy new pmu code added its __hyp_text code in part of the tree that doesn't get covered by the no-asan/no-kcov kconfig decorations. This shows up as a hyp-panic on v8.0 hardware when the host kernel is built with debug options like kasan. This same bug has been living happily in the aarch32 emulation code since v4.9. (commit 8cebe750c4d9a "arm64: KVM: Make kvm_skip_instr32 available to HYP"). Patch 2 has the two relevant fixes tag, but won't apply cleanly before v4.19 due to the churn. Fix them both by shuffling the code around. -- Changes since v1: * Made the two functions static in patch 1, removed the header entries. Thanks, James Morse (2): KVM: arm64: Move pmu hyp code under hyp's Makefile to avoid instrumentation KVM: arm/arm64: Move cc/it checks under hyp's Makefile to avoid instrumentation arch/arm/kvm/hyp/Makefile | 1 + arch/arm64/include/asm/kvm_host.h | 3 - arch/arm64/kvm/hyp/Makefile | 1 + arch/arm64/kvm/hyp/switch.c | 39 +++++++++ arch/arm64/kvm/pmu.c | 38 --------- virt/kvm/arm/aarch32.c | 121 -------------------------- virt/kvm/arm/hyp/aarch32.c | 136 ++++++++++++++++++++++++++++++ 7 files changed, 177 insertions(+), 162 deletions(-) create mode 100644 virt/kvm/arm/hyp/aarch32.c -- 2.20.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next reply other threads:[~2019-05-22 17:47 UTC|newest] Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-05-22 17:47 James Morse [this message] 2019-05-22 17:47 ` [PATCH v2 0/2] Move __hyp_text code under no-asan Makefiles James Morse 2019-05-22 17:47 ` [PATCH v2 1/2] KVM: arm64: Move pmu hyp code under hyp's Makefile to avoid instrumentation James Morse 2019-05-22 17:47 ` James Morse 2019-05-22 17:47 ` [PATCH v2 2/2] KVM: arm/arm64: Move cc/it checks " James Morse 2019-05-22 17:47 ` James Morse
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