[PATCH v4 0/3] Add arch_timer_edge_cases selftest

[Colton Lewis <coltonlewis@google.com>]

Add arch_timer_edge_cases selftest to test various corner cases of the
ARM timers such as:

* timers above the max TVAL value
* timers in the past
* moving counters ahead and behind pending timers
* reprograming timers
* timers fired multiple times
* masking/unmasking using the timer control mask

These are intentionally unusual scenarios to stress compliance with
the arm architecture.

v4:
* Convert macros to functions where possible
* Remove magic numbers
* Improve naming of variables and types

v3:
https://lore.kernel.org/kvmarm/20231103192915.2209393-1-coltonlewis@google.com/

v2:
https://lore.kernel.org/kvmarm/20230928210201.1310536-1-coltonlewis@google.com/

v1:
https://lore.kernel.org/kvm/20230516213731.387132-1-coltonlewis@google.com/

Colton Lewis (3):
  KVM: arm64: selftests: Standardize GIC base addresses
  KVM: arm64: selftests: Guarantee interrupts are handled
  KVM: arm64: selftests: Add arch_timer_edge_cases selftest

 tools/testing/selftests/kvm/Makefile          |    1 +
 .../selftests/kvm/aarch64/arch_timer.c        |    8 +-
 .../kvm/aarch64/arch_timer_edge_cases.c       | 1102 +++++++++++++++++
 .../testing/selftests/kvm/aarch64/vgic_irq.c  |   23 +-
 .../kvm/aarch64/vpmu_counter_access.c         |    3 +-
 .../selftests/kvm/dirty_log_perf_test.c       |    5 +-
 .../kvm/include/aarch64/arch_timer.h          |   18 +-
 .../selftests/kvm/include/aarch64/gic.h       |    8 +-
 .../selftests/kvm/include/aarch64/vgic.h      |    3 +-
 tools/testing/selftests/kvm/lib/aarch64/gic.c |   12 +-
 .../testing/selftests/kvm/lib/aarch64/vgic.c  |    7 +-
 11 files changed, 1158 insertions(+), 32 deletions(-)
 create mode 100644 tools/testing/selftests/kvm/aarch64/arch_timer_edge_cases.c

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2.44.0.278.ge034bb2e1d-goog