This patch series base on the Linux LoongArch KVM patch: Based-on: <20230803022138.2736430-1-zhaotianrui@xxxxxxxxxxx> We add LoongArch support into KVM selftests and there are some KVM test cases we have passed: kvm_create_max_vcpus demand_paging_test kvm_page_table_test set_memory_region_test memslot_modification_stress_test memslot_perf_test kvm_binary_stats_test The test results: 1..7 selftests: kvm: kvm_create_max_vcpus KVM_CAP_MAX_VCPU_ID: 256 KVM_CAP_MAX_VCPUS: 256 Testing creating 256 vCPUs, with IDs 0...255. ok 1 selftests: kvm: kvm_create_max_vcpus selftests: kvm: demand_paging_test Testing guest mode: PA-bits:36, VA-bits:47, 16K pages guest physical test memory: [0xfbfffc000, 0xfffffc000) Finished creating vCPUs and starting uffd threads Started all vCPUs All vCPU threads joined Total guest execution time: 0.787727423s Overall demand paging rate: 83196.291111 pgs/sec ok 2 selftests: kvm: demand_paging_test selftests: kvm: kvm_page_table_test Testing guest mode: PA-bits:36, VA-bits:47, 16K pages Testing memory backing src type: anonymous Testing memory backing src granularity: 0x4000 Testing memory size(aligned): 0x40000000 Guest physical test memory offset: 0xfbfffc000 Host virtual test memory offset: 0xffb011c000 Number of testing vCPUs: 1 Started all vCPUs successfully KVM_CREATE_MAPPINGS: total execution time: -3.-672213074s KVM_UPDATE_MAPPINGS: total execution time: -4.-381650744s KVM_ADJUST_MAPPINGS: total execution time: -4.-434860241s ok 3 selftests: kvm: kvm_page_table_test selftests: kvm: set_memory_region_test Allowed number of memory slots: 256 Adding slots 0..255, each memory region with 2048K size ok 4 selftests: kvm: set_memory_region_test selftests: kvm: memslot_modification_stress_test Testing guest mode: PA-bits:36, VA-bits:47, 16K pages guest physical test memory: [0xfbfffc000, 0xfffffc000) Finished creating vCPUs Started all vCPUs All vCPU threads joined ok 5 selftests: kvm: memslot_modification_stress_test selftests: kvm: memslot_perf_test Testing map performance with 1 runs, 5 seconds each Test took 0.003797735s for slot setup + 5.012294023s all iterations Done 369 iterations, avg 0.013583452s each Best runtime result was 0.013583452s per iteration (with 369 iterations) Testing unmap performance with 1 runs, 5 seconds each Test took 0.003841196s for slot setup + 5.001802893s all iterations Done 341 iterations, avg 0.014668043s each Best runtime result was 0.014668043s per iteration (with 341 iterations) Testing unmap chunked performance with 1 runs, 5 seconds each Test took 0.003784356s for slot setup + 5.000265398s all iterations Done 7376 iterations, avg 0.000677910s each Best runtime result was 0.000677910s per iteration (with 7376 iterations) Testing move active area performance with 1 runs, 5 seconds each Test took 0.003828075s for slot setup + 5.000021760s all iterations Done 85449 iterations, avg 0.000058514s each Best runtime result was 0.000058514s per iteration (with 85449 iterations) Testing move inactive area performance with 1 runs, 5 seconds each Test took 0.003809146s for slot setup + 5.000024149s all iterations Done 181908 iterations, avg 0.000027486s each Best runtime result was 0.000027486s per iteration (with 181908 iterations) Testing RW performance with 1 runs, 5 seconds each Test took 0.003780596s for slot setup + 5.001116175s all iterations Done 391 iterations, avg 0.012790578s each Best runtime result was 0.012790578s per iteration (with 391 iterations) Best slot setup time for the whole test area was 0.003780596s ok 6 selftests: kvm: memslot_perf_test selftests: kvm: kvm_binary_stats_test TAP version 13 1..4 ok 1 vm0 ok 2 vm1 ok 3 vm2 ok 4 vm3 Totals: pass:4 fail:0 xfail:0 xpass:0 skip:0 error:0 ok 7 selftests: kvm: kvm_binary_stats_test Changes for v2: 1. We should use ".balign 4096" to align the assemble code with 4K in exception.S instead of "align 12". 2. LoongArch only supports 3 or 4 levels page tables, so we remove the hanlders for 2-levels page table. 3. Remove the DEFAULT_LOONGARCH_GUEST_STACK_VADDR_MIN and use the common DEFAULT_GUEST_STACK_VADDR_MIN to allocate stack memory in guest. 4. Reorganize the test cases supported by LoongArch. 5. Fix some code comments. 6. Add kvm_binary_stats_test test case into LoongArch KVM selftests. changes for v1: 1. Add kvm selftests header files for LoongArch. 2. Add processor tests for LoongArch KVM. 3. Add ucall tests for LoongArch KVM. 4. Add LoongArch tests into makefile. Tianrui Zhao (4): KVM: selftests: Add KVM selftests header files for LoongArch KVM: selftests: Add core KVM selftests support for LoongArch KVM: selftests: Add ucall test support for LoongArch KVM: selftests: Add test cases supported by LoongArch into makefile tools/testing/selftests/kvm/Makefile | 12 + .../selftests/kvm/include/kvm_util_base.h | 5 + .../kvm/include/loongarch/processor.h | 107 ++++++ .../selftests/kvm/lib/loongarch/exception.S | 27 ++ .../selftests/kvm/lib/loongarch/processor.c | 356 ++++++++++++++++++ .../selftests/kvm/lib/loongarch/ucall.c | 43 +++ 6 files changed, 550 insertions(+) create mode 100644 tools/testing/selftests/kvm/include/loongarch/processor.h create mode 100644 tools/testing/selftests/kvm/lib/loongarch/exception.S create mode 100644 tools/testing/selftests/kvm/lib/loongarch/processor.c create mode 100644 tools/testing/selftests/kvm/lib/loongarch/ucall.c -- 2.39.1
