The sstc_timer selftest 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 selftest was ported from aarch64 arch_timer and tested with Linux v6.5-rc3 on a Qemu riscv64 virt machine. Haibo Xu (4): tools: riscv: Add header file csr.h KVM: riscv: selftests: Add exception handling support KVM: riscv: selftests: Add guest helper to get vcpu id KVM: riscv: selftests: Add sstc_timer test tools/arch/riscv/include/asm/csr.h | 127 ++++++ tools/testing/selftests/kvm/Makefile | 2 + .../selftests/kvm/include/riscv/processor.h | 76 ++++ .../selftests/kvm/include/riscv/sstc_timer.h | 70 ++++ .../selftests/kvm/lib/riscv/handlers.S | 101 +++++ .../selftests/kvm/lib/riscv/processor.c | 74 ++++ .../testing/selftests/kvm/riscv/sstc_timer.c | 382 ++++++++++++++++++ 7 files changed, 832 insertions(+) create mode 100644 tools/arch/riscv/include/asm/csr.h create mode 100644 tools/testing/selftests/kvm/include/riscv/sstc_timer.h create mode 100644 tools/testing/selftests/kvm/lib/riscv/handlers.S create mode 100644 tools/testing/selftests/kvm/riscv/sstc_timer.c -- 2.34.1
