[PATCH v2 00/19] KVM: arm64: Transition to a per-ITS translation cache

[Oliver Upton <oliver.upton@linux.dev>]

Now that I'm back from vacation, time to torture you all with GIC
changes. Now with fewer bugs!

Have a look at v1 for the full cover letter.

v1: https://lore.kernel.org/kvmarm/20240227224249.2209194-1-oliver.upton@linux.dev/

v1 -> v2:
 - Fully bake my attempt at converting the device list to an rculist
   (Sean, Paolo)
 - Drop Paolo's Ack (see above)
 - Rebase to v6.9-rc3

Oliver Upton (19):
  KVM: Treat the device list as an rculist
  KVM: arm64: vgic-its: Walk LPI xarray in its_sync_lpi_pending_table()
  KVM: arm64: vgic-its: Walk LPI xarray in vgic_its_invall()
  KVM: arm64: vgic-its: Walk LPI xarray in vgic_its_cmd_handle_movall()
  KVM: arm64: vgic-debug: Use an xarray mark for debug iterator
  KVM: arm64: vgic-its: Get rid of vgic_copy_lpi_list()
  KVM: arm64: vgic-its: Scope translation cache invalidations to an ITS
  KVM: arm64: vgic-its: Spin off helper for finding ITS by doorbell addr
  KVM: arm64: vgic-its: Maintain a translation cache per ITS
  KVM: arm64: vgic-its: Use the per-ITS translation cache for injection
  KVM: arm64: vgic-its: Rip out the global translation cache
  KVM: arm64: vgic-its: Get rid of the lpi_list_lock
  KVM: selftests: Align with kernel's GIC definitions
  KVM: selftests: Standardise layout of GIC frames
  KVM: selftests: Add quadword MMIO accessors
  KVM: selftests: Add a minimal library for interacting with an ITS
  KVM: selftests: Add helper for enabling LPIs on a redistributor
  KVM: selftests: Use MPIDR_HWID_BITMASK from cputype.h
  KVM: selftests: Add stress test for LPI injection

 arch/arm64/kvm/vgic/vgic-debug.c              |  82 ++-
 arch/arm64/kvm/vgic/vgic-init.c               |   8 -
 arch/arm64/kvm/vgic/vgic-its.c                | 334 +++-------
 arch/arm64/kvm/vgic/vgic-mmio-v3.c            |   2 +-
 arch/arm64/kvm/vgic/vgic.c                    |   6 +-
 arch/arm64/kvm/vgic/vgic.h                    |   6 +-
 include/kvm/arm_vgic.h                        |  13 +-
 tools/testing/selftests/kvm/Makefile          |   2 +
 .../selftests/kvm/aarch64/arch_timer.c        |   8 +-
 .../testing/selftests/kvm/aarch64/psci_test.c |   2 +
 .../testing/selftests/kvm/aarch64/vgic_irq.c  |  15 +-
 .../selftests/kvm/aarch64/vgic_lpi_stress.c   | 410 ++++++++++++
 .../kvm/aarch64/vpmu_counter_access.c         |   6 +-
 .../selftests/kvm/dirty_log_perf_test.c       |   5 +-
 .../selftests/kvm/include/aarch64/gic.h       |  21 +-
 .../selftests/kvm/include/aarch64/gic_v3.h    | 586 +++++++++++++++++-
 .../kvm/include/aarch64/gic_v3_its.h          |  19 +
 .../selftests/kvm/include/aarch64/processor.h |  19 +-
 .../selftests/kvm/include/aarch64/vgic.h      |   5 +-
 tools/testing/selftests/kvm/lib/aarch64/gic.c |  18 +-
 .../selftests/kvm/lib/aarch64/gic_private.h   |   4 +-
 .../selftests/kvm/lib/aarch64/gic_v3.c        |  99 +--
 .../selftests/kvm/lib/aarch64/gic_v3_its.c    | 248 ++++++++
 .../testing/selftests/kvm/lib/aarch64/vgic.c  |  38 +-
 virt/kvm/kvm_main.c                           |  14 +-
 25 files changed, 1567 insertions(+), 403 deletions(-)
 create mode 100644 tools/testing/selftests/kvm/aarch64/vgic_lpi_stress.c
 create mode 100644 tools/testing/selftests/kvm/include/aarch64/gic_v3_its.h
 create mode 100644 tools/testing/selftests/kvm/lib/aarch64/gic_v3_its.c


base-commit: fec50db7033ea478773b159e0e2efb135270e3b7
-- 
2.44.0.769.g3c40516874-goog