While writting vgic v3 init sequence KVM selftests I noticed some relatively minor issues. This was also the opportunity to try to fix the issue laterly reported by Zenghui, related to the RDIST_TYPER last bit emulation. The final patch is a first batch of VGIC init sequence selftests. Of course they can be augmented with a lot more register access tests, but let's try to move forward incrementally ... Best Regards Eric This series can be found at: https://github.com/eauger/linux/tree/vgic_kvmselftests_v2 History: - Took into account all comments from Marc and Alexandru's except the has_run_once still after the map_resources (this would oblige me to revisit in depth the selftests) Eric Auger (9): KVM: arm64: vgic-v3: Fix some error codes when setting RDIST base KVM: arm64: Fix KVM_VGIC_V3_ADDR_TYPE_REDIST_REGION read KVM: arm64: vgic-v3: Fix error handling in vgic_v3_set_redist_base() KVM: arm/arm64: vgic: Reset base address on kvm_vgic_dist_destroy() KVM: arm: move has_run_once after the map_resources docs: kvm: devices/arm-vgic-v3: enhance KVM_DEV_ARM_VGIC_CTRL_INIT doc KVM: arm64: Simplify argument passing to vgic_uaccess_[read|write] KVM: arm64: vgic-v3: Expose GICR_TYPER.Last for userspace KVM: selftests: aarch64/vgic-v3 init sequence tests .../virt/kvm/devices/arm-vgic-v3.rst | 2 +- arch/arm64/kvm/arm.c | 4 +- arch/arm64/kvm/vgic/vgic-init.c | 6 +- arch/arm64/kvm/vgic/vgic-kvm-device.c | 3 + arch/arm64/kvm/vgic/vgic-mmio-v3.c | 30 +- arch/arm64/kvm/vgic/vgic-mmio.c | 10 +- include/kvm/arm_vgic.h | 1 + tools/testing/selftests/kvm/Makefile | 1 + .../testing/selftests/kvm/aarch64/vgic_init.c | 453 ++++++++++++++++++ .../testing/selftests/kvm/include/kvm_util.h | 5 + tools/testing/selftests/kvm/lib/kvm_util.c | 51 ++ 11 files changed, 546 insertions(+), 20 deletions(-) create mode 100644 tools/testing/selftests/kvm/aarch64/vgic_init.c -- 2.21.3