Re: [RFC 3/5] selftests: KVM: SEV IOCTL test

+static void test_sev_launch(void *guest_code, uint32_t type, uint64_t policy) +{

•   struct kvm_vcpu *vcpu;
  

•   struct kvm_vm *vm;
  

•   struct ucall uc;
  

•   bool cond;
  

•   int ret;
  

•   vm = vm_sev_create_with_one_vcpu(type, guest_code, &vcpu);
  

•   ret = sev_vm_launch_start(vm, 0);
  

•   cond = type == KVM_X86_SEV_VM ? !ret : ret;
  

•   TEST_ASSERT(cond,
  

•               "KVM_SEV_LAUNCH_START should fail, invalid policy.");
  

•   ret = sev_vm_launch_update(vm, policy);
  

•   cond = type == KVM_X86_SEV_VM ? !ret : ret;
  

•   TEST_ASSERT(cond,
  

•               "KVM_SEV_LAUNCH_UPDATE should fail, invalid policy.");
  

Isn't the reason we expect all other calls to fail here because we have not successfully called `sev_vm_launch_start()`?

•   sev_guest_status_assert(vm, type);
  

•   ret = sev_vm_launch_measure(vm, alloca(256));
  

Should we free this buffer?