// SPDX-License-Identifier: GPL-2.0 #include <linux/entry-kvm.h>#include <linux/kvm_host.h> static int xfer_to_guest_mode_work(struct kvm_vcpu *vcpu, unsigned long ti_work){	do {		int ret; 		if (ti_work & _TIF_SIGPENDING) {			kvm_handle_signal_exit(vcpu);			return -EINTR;		} 		if (ti_work & _TIF_NEED_RESCHED)			schedule(); 		if (ti_work & _TIF_NOTIFY_RESUME) {			clear_thread_flag(TIF_NOTIFY_RESUME);			tracehook_notify_resume(NULL);		} 		ret = arch_xfer_to_guest_mode_handle_work(vcpu, ti_work);		if (ret)			return ret; 		ti_work = READ_ONCE(current_thread_info()->flags);	} while (ti_work & XFER_TO_GUEST_MODE_WORK || need_resched());	return 0;} int xfer_to_guest_mode_handle_work(struct kvm_vcpu *vcpu){	unsigned long ti_work; 	/*	 * This is invoked from the outer guest loop with interrupts and	 * preemption enabled.	 *	 * KVM invokes xfer_to_guest_mode_work_pending() with interrupts	 * disabled in the inner loop before going into guest mode. No need	 * to disable interrupts here.	 */	ti_work = READ_ONCE(current_thread_info()->flags);	if (!(ti_work & XFER_TO_GUEST_MODE_WORK))		return 0; 	return xfer_to_guest_mode_work(vcpu, ti_work);}EXPORT_SYMBOL_GPL(xfer_to_guest_mode_handle_work);