Hello, The patch series adds a KVM selftest to validate the behavior of ARM's generic timer (patch-10). The test programs the timer IRQs periodically, and for each interrupt, it validates the behaviour against the architecture specifications. The test further provides a command-line interface to configure the number of vCPUs, the period of the timer, and the number of iterations that the test has to run for. Since the test heavily depends on interrupts, the patch series also adds a basic support for ARM Generic Interrupt Controller v3 (GICv3) to the KVM's aarch64 selftest framework (patch-9). Furthermore, additional processor utilities such as accessing the MMIO (via readl/writel), read/write to assembler unsupported registers, basic delay generation, enable/disable local IRQs, spinlock support, and so on, are also introduced that the test/GICv3 takes advantage of. These are presented in patches 1 through 8. The patch series, specifically the library support, is derived from the kvm-unit-tests and the kernel itself. Regards, Raghavendra Raghavendra Rao Ananta (10): KVM: arm64: selftests: Add MMIO readl/writel support KVM: arm64: selftests: Add write_sysreg_s and read_sysreg_s KVM: arm64: selftests: Add support for cpu_relax KVM: arm64: selftests: Add basic support for arch_timers KVM: arm64: selftests: Add basic support to generate delays KVM: arm64: selftests: Add support to disable and enable local IRQs KVM: arm64: selftests: Add support to get the vcpuid from MPIDR_EL1 KVM: arm64: selftests: Add light-weight spinlock support KVM: arm64: selftests: Add basic GICv3 support KVM: arm64: selftests: Add arch_timer test tools/testing/selftests/kvm/.gitignore | 1 + tools/testing/selftests/kvm/Makefile | 3 +- .../selftests/kvm/aarch64/arch_timer.c | 382 ++++++++++++++++++ .../kvm/include/aarch64/arch_timer.h | 138 +++++++ .../selftests/kvm/include/aarch64/delay.h | 25 ++ .../selftests/kvm/include/aarch64/gic.h | 21 + .../selftests/kvm/include/aarch64/processor.h | 140 ++++++- .../selftests/kvm/include/aarch64/spinlock.h | 13 + tools/testing/selftests/kvm/lib/aarch64/gic.c | 93 +++++ .../selftests/kvm/lib/aarch64/gic_private.h | 21 + .../selftests/kvm/lib/aarch64/gic_v3.c | 240 +++++++++++ .../selftests/kvm/lib/aarch64/gic_v3.h | 70 ++++ .../selftests/kvm/lib/aarch64/spinlock.c | 27 ++ 13 files changed, 1172 insertions(+), 2 deletions(-) create mode 100644 tools/testing/selftests/kvm/aarch64/arch_timer.c create mode 100644 tools/testing/selftests/kvm/include/aarch64/arch_timer.h create mode 100644 tools/testing/selftests/kvm/include/aarch64/delay.h create mode 100644 tools/testing/selftests/kvm/include/aarch64/gic.h create mode 100644 tools/testing/selftests/kvm/include/aarch64/spinlock.h create mode 100644 tools/testing/selftests/kvm/lib/aarch64/gic.c create mode 100644 tools/testing/selftests/kvm/lib/aarch64/gic_private.h create mode 100644 tools/testing/selftests/kvm/lib/aarch64/gic_v3.c create mode 100644 tools/testing/selftests/kvm/lib/aarch64/gic_v3.h create mode 100644 tools/testing/selftests/kvm/lib/aarch64/spinlock.c -- 2.33.0.rc1.237.g0d66db33f3-goog
