diff options
Diffstat (limited to 'tools/testing/selftests/kvm/s390x/sync_regs_test.c')
| -rw-r--r-- | tools/testing/selftests/kvm/s390x/sync_regs_test.c | 121 |
1 files changed, 83 insertions, 38 deletions
diff --git a/tools/testing/selftests/kvm/s390x/sync_regs_test.c b/tools/testing/selftests/kvm/s390x/sync_regs_test.c index caf7b8859a94..3fdb6e2598eb 100644 --- a/tools/testing/selftests/kvm/s390x/sync_regs_test.c +++ b/tools/testing/selftests/kvm/s390x/sync_regs_test.c @@ -21,8 +21,7 @@ #include "test_util.h" #include "kvm_util.h" #include "diag318_test_handler.h" - -#define VCPU_ID 5 +#include "kselftest.h" static void guest_code(void) { @@ -74,61 +73,58 @@ static void compare_sregs(struct kvm_sregs *left, struct kvm_sync_regs *right) #define TEST_SYNC_FIELDS (KVM_SYNC_GPRS|KVM_SYNC_ACRS|KVM_SYNC_CRS|KVM_SYNC_DIAG318) #define INVALID_SYNC_FIELD 0x80000000 -int main(int argc, char *argv[]) +void test_read_invalid(struct kvm_vcpu *vcpu) { - struct kvm_vm *vm; - struct kvm_run *run; - struct kvm_regs regs; - struct kvm_sregs sregs; - int rv, cap; - - /* Tell stdout not to buffer its content */ - setbuf(stdout, NULL); - - cap = kvm_check_cap(KVM_CAP_SYNC_REGS); - if (!cap) { - print_skip("CAP_SYNC_REGS not supported"); - exit(KSFT_SKIP); - } - - /* Create VM */ - vm = vm_create_default(VCPU_ID, 0, guest_code); - - run = vcpu_state(vm, VCPU_ID); + struct kvm_run *run = vcpu->run; + int rv; /* Request reading invalid register set from VCPU. */ run->kvm_valid_regs = INVALID_SYNC_FIELD; - rv = _vcpu_run(vm, VCPU_ID); + rv = _vcpu_run(vcpu); TEST_ASSERT(rv < 0 && errno == EINVAL, "Invalid kvm_valid_regs did not cause expected KVM_RUN error: %d\n", rv); - vcpu_state(vm, VCPU_ID)->kvm_valid_regs = 0; + run->kvm_valid_regs = 0; run->kvm_valid_regs = INVALID_SYNC_FIELD | TEST_SYNC_FIELDS; - rv = _vcpu_run(vm, VCPU_ID); + rv = _vcpu_run(vcpu); TEST_ASSERT(rv < 0 && errno == EINVAL, "Invalid kvm_valid_regs did not cause expected KVM_RUN error: %d\n", rv); - vcpu_state(vm, VCPU_ID)->kvm_valid_regs = 0; + run->kvm_valid_regs = 0; +} + +void test_set_invalid(struct kvm_vcpu *vcpu) +{ + struct kvm_run *run = vcpu->run; + int rv; /* Request setting invalid register set into VCPU. */ run->kvm_dirty_regs = INVALID_SYNC_FIELD; - rv = _vcpu_run(vm, VCPU_ID); + rv = _vcpu_run(vcpu); TEST_ASSERT(rv < 0 && errno == EINVAL, "Invalid kvm_dirty_regs did not cause expected KVM_RUN error: %d\n", rv); - vcpu_state(vm, VCPU_ID)->kvm_dirty_regs = 0; + run->kvm_dirty_regs = 0; run->kvm_dirty_regs = INVALID_SYNC_FIELD | TEST_SYNC_FIELDS; - rv = _vcpu_run(vm, VCPU_ID); + rv = _vcpu_run(vcpu); TEST_ASSERT(rv < 0 && errno == EINVAL, "Invalid kvm_dirty_regs did not cause expected KVM_RUN error: %d\n", rv); - vcpu_state(vm, VCPU_ID)->kvm_dirty_regs = 0; + run->kvm_dirty_regs = 0; +} + +void test_req_and_verify_all_valid_regs(struct kvm_vcpu *vcpu) +{ + struct kvm_run *run = vcpu->run; + struct kvm_sregs sregs; + struct kvm_regs regs; + int rv; /* Request and verify all valid register sets. */ run->kvm_valid_regs = TEST_SYNC_FIELDS; - rv = _vcpu_run(vm, VCPU_ID); + rv = _vcpu_run(vcpu); TEST_ASSERT(rv == 0, "vcpu_run failed: %d\n", rv); TEST_ASSERT(run->exit_reason == KVM_EXIT_S390_SIEIC, "Unexpected exit reason: %u (%s)\n", @@ -141,11 +137,19 @@ int main(int argc, char *argv[]) run->s390_sieic.icptcode, run->s390_sieic.ipa, run->s390_sieic.ipb); - vcpu_regs_get(vm, VCPU_ID, ®s); + vcpu_regs_get(vcpu, ®s); compare_regs(®s, &run->s.regs); - vcpu_sregs_get(vm, VCPU_ID, &sregs); + vcpu_sregs_get(vcpu, &sregs); compare_sregs(&sregs, &run->s.regs); +} + +void test_set_and_verify_various_reg_values(struct kvm_vcpu *vcpu) +{ + struct kvm_run *run = vcpu->run; + struct kvm_sregs sregs; + struct kvm_regs regs; + int rv; /* Set and verify various register values */ run->s.regs.gprs[11] = 0xBAD1DEA; @@ -159,7 +163,7 @@ int main(int argc, char *argv[]) run->kvm_dirty_regs |= KVM_SYNC_DIAG318; } - rv = _vcpu_run(vm, VCPU_ID); + rv = _vcpu_run(vcpu); TEST_ASSERT(rv == 0, "vcpu_run failed: %d\n", rv); TEST_ASSERT(run->exit_reason == KVM_EXIT_S390_SIEIC, "Unexpected exit reason: %u (%s)\n", @@ -175,11 +179,17 @@ int main(int argc, char *argv[]) "diag318 sync regs value incorrect 0x%llx.", run->s.regs.diag318); - vcpu_regs_get(vm, VCPU_ID, ®s); + vcpu_regs_get(vcpu, ®s); compare_regs(®s, &run->s.regs); - vcpu_sregs_get(vm, VCPU_ID, &sregs); + vcpu_sregs_get(vcpu, &sregs); compare_sregs(&sregs, &run->s.regs); +} + +void test_clear_kvm_dirty_regs_bits(struct kvm_vcpu *vcpu) +{ + struct kvm_run *run = vcpu->run; + int rv; /* Clear kvm_dirty_regs bits, verify new s.regs values are * overwritten with existing guest values. @@ -188,7 +198,7 @@ int main(int argc, char *argv[]) run->kvm_dirty_regs = 0; run->s.regs.gprs[11] = 0xDEADBEEF; run->s.regs.diag318 = 0x4B1D; - rv = _vcpu_run(vm, VCPU_ID); + rv = _vcpu_run(vcpu); TEST_ASSERT(rv == 0, "vcpu_run failed: %d\n", rv); TEST_ASSERT(run->exit_reason == KVM_EXIT_S390_SIEIC, "Unexpected exit reason: %u (%s)\n", @@ -200,8 +210,43 @@ int main(int argc, char *argv[]) TEST_ASSERT(run->s.regs.diag318 != 0x4B1D, "diag318 sync regs value incorrect 0x%llx.", run->s.regs.diag318); +} + +struct testdef { + const char *name; + void (*test)(struct kvm_vcpu *vcpu); +} testlist[] = { + { "read invalid", test_read_invalid }, + { "set invalid", test_set_invalid }, + { "request+verify all valid regs", test_req_and_verify_all_valid_regs }, + { "set+verify various regs", test_set_and_verify_various_reg_values }, + { "clear kvm_dirty_regs bits", test_clear_kvm_dirty_regs_bits }, +}; + +int main(int argc, char *argv[]) +{ + struct kvm_vcpu *vcpu; + struct kvm_vm *vm; + int idx; + + TEST_REQUIRE(kvm_has_cap(KVM_CAP_SYNC_REGS)); + + /* Tell stdout not to buffer its content */ + setbuf(stdout, NULL); + + ksft_print_header(); + + ksft_set_plan(ARRAY_SIZE(testlist)); + + /* Create VM */ + vm = vm_create_with_one_vcpu(&vcpu, guest_code); + + for (idx = 0; idx < ARRAY_SIZE(testlist); idx++) { + testlist[idx].test(vcpu); + ksft_test_result_pass("%s\n", testlist[idx].name); + } kvm_vm_free(vm); - return 0; + ksft_finished(); /* Print results and exit() accordingly */ } |