/* * Copyright (C) 2012 ARM Ltd. * Author: Marc Zyngier <marc.zyngier@arm.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef __ASM_ARM_KVM_ARCH_TIMER_H#define __ASM_ARM_KVM_ARCH_TIMER_H #include <linux/clocksource.h>#include <linux/hrtimer.h> struct arch_timer_context {	/* Registers: control register, timer value */	u32				cnt_ctl;	u64				cnt_cval; 	/* Timer IRQ */	struct kvm_irq_level		irq; 	/*	 * We have multiple paths which can save/restore the timer state	 * onto the hardware, so we need some way of keeping track of	 * where the latest state is.	 *	 * loaded == true:  State is loaded on the hardware registers.	 * loaded == false: State is stored in memory.	 */	bool			loaded; 	/* Virtual offset */	u64			cntvoff;}; struct arch_timer_cpu {	struct arch_timer_context	vtimer;	struct arch_timer_context	ptimer; 	/* Background timer used when the guest is not running */	struct hrtimer			bg_timer; 	/* Physical timer emulation */	struct hrtimer			phys_timer; 	/* Is the timer enabled */	bool			enabled;}; int kvm_timer_hyp_init(bool);int kvm_timer_enable(struct kvm_vcpu *vcpu);int kvm_timer_vcpu_reset(struct kvm_vcpu *vcpu);void kvm_timer_vcpu_init(struct kvm_vcpu *vcpu);void kvm_timer_sync_hwstate(struct kvm_vcpu *vcpu);bool kvm_timer_should_notify_user(struct kvm_vcpu *vcpu);void kvm_timer_update_run(struct kvm_vcpu *vcpu);void kvm_timer_vcpu_terminate(struct kvm_vcpu *vcpu); u64 kvm_arm_timer_get_reg(struct kvm_vcpu *, u64 regid);int kvm_arm_timer_set_reg(struct kvm_vcpu *, u64 regid, u64 value); int kvm_arm_timer_set_attr(struct kvm_vcpu *vcpu, struct kvm_device_attr *attr);int kvm_arm_timer_get_attr(struct kvm_vcpu *vcpu, struct kvm_device_attr *attr);int kvm_arm_timer_has_attr(struct kvm_vcpu *vcpu, struct kvm_device_attr *attr); bool kvm_timer_is_pending(struct kvm_vcpu *vcpu); void kvm_timer_schedule(struct kvm_vcpu *vcpu);void kvm_timer_unschedule(struct kvm_vcpu *vcpu); u64 kvm_phys_timer_read(void); void kvm_timer_vcpu_load(struct kvm_vcpu *vcpu);void kvm_timer_vcpu_put(struct kvm_vcpu *vcpu); void kvm_timer_init_vhe(void); bool kvm_arch_timer_get_input_level(int vintid); #define vcpu_vtimer(v)	(&(v)->arch.timer_cpu.vtimer)#define vcpu_ptimer(v)	(&(v)->arch.timer_cpu.ptimer) #endif