[PATCH v5 0/8] KVM/ARM: Some vgic fixes and init sequence KVM selftests

Eric Auger
2021-04-04T17:23:04Z

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_v5

History:
v4 -> v5:
- rewrite the last bit detection according to Marc's
interpretation of the spec and modify the kvm selftests
accordingly
v3 -> v4:
- take into account Drew's comment on the kvm selftests. No
change to the KVM related patches compared to v3
v2 ->v3:
- reworked last bit read accessor to handle contiguous redist
regions and rdist not registered in ascending order
- removed [PATCH 5/9] KVM: arm: move has_run_once after the
map_resources
v1 -> v2:
- 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 (8):
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()
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: Introduce vgic_v3_free_redist_region()
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/vgic/vgic-init.c | 12 +-
arch/arm64/kvm/vgic/vgic-kvm-device.c | 3 +
arch/arm64/kvm/vgic/vgic-mmio-v3.c | 79 ++-
arch/arm64/kvm/vgic/vgic-mmio.c | 10 +-
arch/arm64/kvm/vgic/vgic.h | 1 +
include/kvm/arm_vgic.h | 1 +
tools/testing/selftests/kvm/.gitignore | 1 +
tools/testing/selftests/kvm/Makefile | 1 +
.../testing/selftests/kvm/aarch64/vgic_init.c | 585 ++++++++++++++++++
.../testing/selftests/kvm/include/kvm_util.h | 9 +
tools/testing/selftests/kvm/lib/kvm_util.c | 77 +++
12 files changed, 739 insertions(+), 42 deletions(-)
create mode 100644 tools/testing/selftests/kvm/aarch64/vgic_init.c

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