From: Vladimir Murzin <vladimir.murzin@arm.com> To: linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu Cc: will@kernel.org, maz@kernel.org Subject: [PATCH kvmtool] aarch64: Give up with MTE for AArch32 guest Date: Fri, 20 May 2022 13:38:44 +0100 [thread overview] Message-ID: <20220520123844.127733-1-vladimir.murzin@arm.com> (raw) KVM doesn't support combination of MTE and AArch32 guest, so do not even try. Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com> --- arm/aarch64/kvm.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arm/aarch64/kvm.c b/arm/aarch64/kvm.c index 1b992dd..f3fe854 100644 --- a/arm/aarch64/kvm.c +++ b/arm/aarch64/kvm.c @@ -120,6 +120,11 @@ void kvm__arch_enable_mte(struct kvm *kvm) .cap = KVM_CAP_ARM_MTE, }; + if (kvm->cfg.arch.aarch32_guest) { + pr_debug("MTE is incompatible with AArch32"); + return; + } + if (kvm->cfg.arch.mte_disabled) { pr_debug("MTE disabled by user"); return; -- 2.25.1 _______________________________________________ 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: Vladimir Murzin <vladimir.murzin@arm.com> To: linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu Cc: alexandru.elisei@arm.com, will@kernel.org, maz@kernel.org Subject: [PATCH kvmtool] aarch64: Give up with MTE for AArch32 guest Date: Fri, 20 May 2022 13:38:44 +0100 [thread overview] Message-ID: <20220520123844.127733-1-vladimir.murzin@arm.com> (raw) KVM doesn't support combination of MTE and AArch32 guest, so do not even try. Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com> --- arm/aarch64/kvm.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arm/aarch64/kvm.c b/arm/aarch64/kvm.c index 1b992dd..f3fe854 100644 --- a/arm/aarch64/kvm.c +++ b/arm/aarch64/kvm.c @@ -120,6 +120,11 @@ void kvm__arch_enable_mte(struct kvm *kvm) .cap = KVM_CAP_ARM_MTE, }; + if (kvm->cfg.arch.aarch32_guest) { + pr_debug("MTE is incompatible with AArch32"); + return; + } + if (kvm->cfg.arch.mte_disabled) { pr_debug("MTE disabled by user"); return; -- 2.25.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next reply other threads:[~2022-05-20 12:39 UTC|newest] Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-05-20 12:38 Vladimir Murzin [this message] 2022-05-20 12:38 ` [PATCH kvmtool] aarch64: Give up with MTE for AArch32 guest Vladimir Murzin 2022-05-20 13:31 ` Alexandru Elisei 2022-05-20 13:31 ` Alexandru Elisei 2022-05-20 13:48 ` Vladimir Murzin 2022-05-20 13:48 ` Vladimir Murzin 2022-05-20 14:01 ` Alexandru Elisei 2022-05-20 14:01 ` Alexandru Elisei 2022-05-20 20:51 ` Will Deacon 2022-05-20 20:51 ` Will Deacon
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