KVM_GET_REG_LIST will dump all register IDs that are available to KVM_GET/SET_ONE_REG and It's very useful to identify some platform regression issue during VM migration. Patch 1-7 re-structured the get-reg-list test in aarch64 to make some of the code as common test framework that can be shared by riscv. Patch 8 move reject_set check logic to a function so as to check for different errno for different registers. Patch 9 change to do the get/set operation only on present-blessed list. Patch 10 enabled the KVM_GET_REG_LIST API in riscv. patch 11-12 added the corresponding kselftest for checking possible register regressions. The get-reg-list kvm selftest was ported from aarch64 and tested with Linux 6.4-rc6 on a Qemu riscv64 virt machine. --- Changed since v3: * Rebase to Linux 6.4-rc6 * Address Andrew's suggestions and comments: * Move reject_set check logic to a function * Only do get/set tests on present blessed list * Only enable ISA extension for the specified config * For disable-not-allowed registers, move them to the filter-reg-list Andrew Jones (7): KVM: arm64: selftests: Replace str_with_index with strdup_printf KVM: arm64: selftests: Drop SVE cap check in print_reg KVM: arm64: selftests: Remove print_reg's dependency on vcpu_config KVM: arm64: selftests: Rename vcpu_config and add to kvm_util.h KVM: arm64: selftests: Delete core_reg_fixup KVM: arm64: selftests: Split get-reg-list test code KVM: arm64: selftests: Finish generalizing get-reg-list Haibo Xu (5): KVM: arm64: selftests: Move reject_set check logic to a function KVM: selftests: Only do get/set tests on present blessed list KVM: riscv: Add KVM_GET_REG_LIST API support KVM: riscv: selftests: Add finalize_vcpu check in run_test KVM: riscv: selftests: Add get-reg-list test Documentation/virt/kvm/api.rst | 2 +- arch/riscv/kvm/vcpu.c | 375 +++++++++ tools/testing/selftests/kvm/Makefile | 11 +- .../selftests/kvm/aarch64/get-reg-list.c | 538 ++----------- tools/testing/selftests/kvm/get-reg-list.c | 439 ++++++++++ .../selftests/kvm/include/kvm_util_base.h | 16 + .../selftests/kvm/include/riscv/processor.h | 3 + .../testing/selftests/kvm/include/test_util.h | 2 + tools/testing/selftests/kvm/lib/test_util.c | 15 + .../selftests/kvm/riscv/get-reg-list.c | 752 ++++++++++++++++++ 10 files changed, 1658 insertions(+), 495 deletions(-) create mode 100644 tools/testing/selftests/kvm/get-reg-list.c create mode 100644 tools/testing/selftests/kvm/riscv/get-reg-list.c -- 2.34.1
