handle_exit
int handle_exit(struct kvm_vcpu *vcpu, int exception_index);
ret = handle_exit(vcpu, ret);
int (*handle_exit)(struct kvm_run *run, struct kvm_vcpu *vcpu);
OFFSET(KVM_ARCH_HANDLE_EXIT, kvm_vcpu_arch, handle_exit);
vcpu->arch.handle_exit = kvm_handle_exit;
KVM_X86_OP(handle_exit)
int (*handle_exit)(struct kvm_vcpu *vcpu,
.handle_exit = svm_handle_exit,
.handle_exit = vt_op(handle_exit),
r = kvm_x86_call(handle_exit)(vcpu, exit_fastpath);
exit(handle_exit());
res = handle_exit();