diff options
Diffstat (limited to 'tools/testing/selftests/kvm')
| -rw-r--r-- | tools/testing/selftests/kvm/s390x/resets.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/tools/testing/selftests/kvm/s390x/resets.c b/tools/testing/selftests/kvm/s390x/resets.c index fb8e976943a9..1485bc6c8999 100644 --- a/tools/testing/selftests/kvm/s390x/resets.c +++ b/tools/testing/selftests/kvm/s390x/resets.c @@ -14,6 +14,9 @@ #include "kvm_util.h" #define VCPU_ID 3 +#define LOCAL_IRQS 32 + +struct kvm_s390_irq buf[VCPU_ID + LOCAL_IRQS]; struct kvm_vm *vm; struct kvm_run *run; @@ -53,6 +56,23 @@ static void test_one_reg(uint64_t id, uint64_t value) TEST_ASSERT(eval_reg == value, "value == %s", value); } +static void assert_noirq(void) +{ + struct kvm_s390_irq_state irq_state; + int irqs; + + irq_state.len = sizeof(buf); + irq_state.buf = (unsigned long)buf; + irqs = _vcpu_ioctl(vm, VCPU_ID, KVM_S390_GET_IRQ_STATE, &irq_state); + /* + * irqs contains the number of retrieved interrupts. Any interrupt + * (notably, the emergency call interrupt we have injected) should + * be cleared by the resets, so this should be 0. + */ + TEST_ASSERT(irqs >= 0, "Could not fetch IRQs: errno %d\n", errno); + TEST_ASSERT(!irqs, "IRQ pending"); +} + static void assert_clear(void) { struct kvm_sregs sregs; @@ -94,6 +114,22 @@ static void assert_initial(void) static void assert_normal(void) { test_one_reg(KVM_REG_S390_PFTOKEN, KVM_S390_PFAULT_TOKEN_INVALID); + assert_noirq(); +} + +static void inject_irq(int cpu_id) +{ + struct kvm_s390_irq_state irq_state; + struct kvm_s390_irq *irq = &buf[0]; + int irqs; + + /* Inject IRQ */ + irq_state.len = sizeof(struct kvm_s390_irq); + irq_state.buf = (unsigned long)buf; + irq->type = KVM_S390_INT_EMERGENCY; + irq->u.emerg.code = cpu_id; + irqs = _vcpu_ioctl(vm, cpu_id, KVM_S390_SET_IRQ_STATE, &irq_state); + TEST_ASSERT(irqs >= 0, "Error injecting EMERGENCY IRQ errno %d\n", errno); } static void test_normal(void) @@ -106,6 +142,8 @@ static void test_normal(void) vcpu_run(vm, VCPU_ID); + inject_irq(VCPU_ID); + vcpu_ioctl(vm, VCPU_ID, KVM_S390_NORMAL_RESET, 0); assert_normal(); kvm_vm_free(vm); @@ -120,6 +158,8 @@ static void test_initial(void) vcpu_run(vm, VCPU_ID); + inject_irq(VCPU_ID); + vcpu_ioctl(vm, VCPU_ID, KVM_S390_INITIAL_RESET, 0); assert_normal(); assert_initial(); @@ -135,6 +175,8 @@ static void test_clear(void) vcpu_run(vm, VCPU_ID); + inject_irq(VCPU_ID); + vcpu_ioctl(vm, VCPU_ID, KVM_S390_CLEAR_RESET, 0); assert_normal(); assert_initial(); |