RISCV: Add KVM_GET_REG_LIST API
From: | Haibo Xu <haibo1.xu-AT-intel.com> | |
To: | unlisted-recipients:; (no To-header on input) | |
Subject: | [PATCH v4 00/12] RISCV: Add KVM_GET_REG_LIST API | |
Date: | Fri, 23 Jun 2023 18:40:02 +0800 | |
Message-ID: | <cover.1687515463.git.haibo1.xu@intel.com> | |
Cc: | xiaobo55x-AT-gmail.com, haibo1.xu-AT-intel.com, ajones-AT-ventanamicro.com, maz-AT-kernel.org, oliver.upton-AT-linux.dev, seanjc-AT-google.com, Paolo Bonzini <pbonzini-AT-redhat.com>, Jonathan Corbet <corbet-AT-lwn.net>, Anup Patel <anup-AT-brainfault.org>, Atish Patra <atishp-AT-atishpatra.org>, Paul Walmsley <paul.walmsley-AT-sifive.com>, Palmer Dabbelt <palmer-AT-dabbelt.com>, Albert Ou <aou-AT-eecs.berkeley.edu>, Shuah Khan <shuah-AT-kernel.org>, James Morse <james.morse-AT-arm.com>, Suzuki K Poulose <suzuki.poulose-AT-arm.com>, Zenghui Yu <yuzenghui-AT-huawei.com>, David Matlack <dmatlack-AT-google.com>, Ben Gardon <bgardon-AT-google.com>, Ricardo Koller <ricarkol-AT-google.com>, Vishal Annapurve <vannapurve-AT-google.com>, Vipin Sharma <vipinsh-AT-google.com>, Colton Lewis <coltonlewis-AT-google.com>, kvm-AT-vger.kernel.org, linux-doc-AT-vger.kernel.org, linux-kernel-AT-vger.kernel.org, kvm-riscv-AT-lists.infradead.org, linux-riscv-AT-lists.infradead.org, linux-kselftest-AT-vger.kernel.org, linux-arm-kernel-AT-lists.infradead.org, kvmarm-AT-lists.linux.dev | |
Archive-link: | Article |
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