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
