From: Ricardo Koller <ricarkol@google.com>
To: kvm@vger.kernel.org, maz@kernel.org,
kvmarm@lists.cs.columbia.edu, drjones@redhat.com,
eric.auger@redhat.com, alexandru.elisei@arm.com
Cc: pshier@google.com, Paolo Bonzini <pbonzini@redhat.com>, shuah@kernel.org
Subject: [PATCH 0/2] KVM: arm64: vgic-v3: Missing check for redist region above the VM IPA size
Date: Wed, 8 Sep 2021 14:03:18 -0700 [thread overview]
Message-ID: <20210908210320.1182303-1-ricarkol@google.com> (raw)
KVM doesn't check for redist regions that extend partially above the
VM-specified IPA (phys_size). This can happen when using the
KVM_VGIC_V3_ADDR_TYPE_REDIST attribute to set a new region that extends
partially above phys_size (with the base below phys_size). The issue is that
vcpus can potentially run into a situation where some redistributors are
addressable and others are not.
Patch 1 adds the missing check, and patch 2 adds a test into aarch64/vgic_init.
Ricardo Koller (2):
KVM: arm64: vgic: check redist region is not above the VM IPA size
KVM: arm64: selftests: test for vgic redist above the VM IPA size
arch/arm64/kvm/vgic/vgic-v3.c | 4 ++
.../testing/selftests/kvm/aarch64/vgic_init.c | 44 +++++++++++++++++++
2 files changed, 48 insertions(+)
--
2.33.0.153.gba50c8fa24-goog
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next reply other threads:[~2021-09-08 21:03 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-08 21:03 Ricardo Koller [this message]
2021-09-08 21:03 ` [PATCH 1/2] KVM: arm64: vgic: check redist region is not above the VM IPA size Ricardo Koller
2021-09-08 21:32 ` Oliver Upton
2021-09-08 21:50 ` Ricardo Koller
2021-09-08 22:00 ` Oliver Upton
2021-09-09 10:20 ` Alexandru Elisei
2021-09-09 14:43 ` Eric Auger
2021-09-09 16:47 ` Ricardo Koller
2021-09-10 8:28 ` Alexandru Elisei
2021-09-10 8:42 ` Eric Auger
2021-09-10 19:32 ` Ricardo Koller
2021-09-13 8:51 ` Eric Auger
2021-09-13 10:15 ` Alexandru Elisei
2021-09-14 3:20 ` Ricardo Koller
2021-09-14 11:00 ` Alexandru Elisei
2021-09-20 21:01 ` Ricardo Koller
2021-09-08 21:03 ` [PATCH 2/2] KVM: arm64: selftests: test for vgic redist " Ricardo Koller
2021-09-09 13:54 ` Eric Auger
2021-09-09 18:22 ` Ricardo Koller
2021-09-10 7:12 ` Eric Auger
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