The RISC-V arch_timer selftests is used to validate Sstc timer functionality in a guest, which sets up periodic timer interrupts and check the basic interrupt status upon its receipt.
This KVM selftests was ported from aarch64 arch_timer and tested with Linux v6.7-rc4 on a Qemu riscv64 virt machine.
--- Changed since v4: * Rebased to Linux 6.7-rc4 * Included Paolo's patch(01/11) to fix issues with SPLIT_TESTS * Droped the patch(KVM: selftests: Unify the makefile rule for split targets) since Paolo's patch had included the fix * Added new patch(05/11) to include header file vdso/processor.h from linux source tree to leverage the cpu_relax() definition - Conor/Andrew * Added new patch(11/11) to enable user configuration of timer error margin parameter which alleviate the intermitent failure in stress test - Andrew * Other minor fixes per Andrew's comments
Haibo Xu (10): KVM: arm64: selftests: Split arch_timer test code KVM: selftests: Add CONFIG_64BIT definition for the build tools: riscv: Add header file csr.h tools: riscv: Add header file vdso/processor.h KVM: riscv: selftests: Switch to use macro from csr.h KVM: riscv: selftests: Add exception handling support KVM: riscv: selftests: Add guest helper to get vcpu id KVM: riscv: selftests: Change vcpu_has_ext to a common function KVM: riscv: selftests: Add sstc timer test KVM: selftests: Enable tunning of err_margin_us in arch timer test
Paolo Bonzini (1): selftests/kvm: Fix issues with $(SPLIT_TESTS)
tools/arch/riscv/include/asm/csr.h | 521 ++++++++++++++++++ tools/arch/riscv/include/asm/vdso/processor.h | 32 ++ tools/testing/selftests/kvm/Makefile | 27 +- .../selftests/kvm/aarch64/arch_timer.c | 295 +--------- tools/testing/selftests/kvm/arch_timer.c | 259 +++++++++ .../selftests/kvm/include/aarch64/processor.h | 4 - .../selftests/kvm/include/kvm_util_base.h | 9 + .../selftests/kvm/include/riscv/arch_timer.h | 71 +++ .../selftests/kvm/include/riscv/processor.h | 65 ++- .../testing/selftests/kvm/include/test_util.h | 2 + .../selftests/kvm/include/timer_test.h | 45 ++ .../selftests/kvm/lib/riscv/handlers.S | 101 ++++ .../selftests/kvm/lib/riscv/processor.c | 87 +++ .../testing/selftests/kvm/riscv/arch_timer.c | 111 ++++ .../selftests/kvm/riscv/get-reg-list.c | 11 +- 15 files changed, 1333 insertions(+), 307 deletions(-) create mode 100644 tools/arch/riscv/include/asm/csr.h create mode 100644 tools/arch/riscv/include/asm/vdso/processor.h create mode 100644 tools/testing/selftests/kvm/arch_timer.c create mode 100644 tools/testing/selftests/kvm/include/riscv/arch_timer.h create mode 100644 tools/testing/selftests/kvm/include/timer_test.h create mode 100644 tools/testing/selftests/kvm/lib/riscv/handlers.S create mode 100644 tools/testing/selftests/kvm/riscv/arch_timer.c