/* * 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>#include <linux/workqueue.h>struct arch_timer_kvm { /* Is the timer enabled */ bool enabled; /* Virtual offset */ cycle_t cntvoff;};struct arch_timer_cpu { /* Registers: control register, timer value */ u32 cntv_ctl; /* Saved/restored */ cycle_t cntv_cval; /* Saved/restored */ /* * Anything that is not used directly from assembly code goes * here. */ /* Background timer used when the guest is not running */ struct hrtimer timer; /* Work queued with the above timer expires */ struct work_struct expired; /* Background timer active */ bool armed; /* Timer IRQ */ const struct kvm_irq_level *irq;};int kvm_timer_hyp_init(void);void kvm_timer_enable(struct kvm *kvm);void kvm_timer_init(struct kvm *kvm);void kvm_timer_vcpu_reset(struct kvm_vcpu *vcpu, const struct kvm_irq_level *irq);void kvm_timer_vcpu_init(struct kvm_vcpu *vcpu);void kvm_timer_flush_hwstate(struct kvm_vcpu *vcpu);void kvm_timer_sync_hwstate(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);bool kvm_timer_should_fire(struct kvm_vcpu *vcpu);#endif
/*
* 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>
#include <linux/workqueue.h>
struct arch_timer_kvm {
/* Is the timer enabled */
bool enabled;
/* Virtual offset */
cycle_t cntvoff;
};
struct arch_timer_cpu {
/* Registers: control register, timer value */
u32 cntv_ctl; /* Saved/restored */
cycle_t cntv_cval; /* Saved/restored */
/*
* Anything that is not used directly from assembly code goes
* here.
*/
/* Background timer used when the guest is not running */
struct hrtimer timer;
/* Work queued with the above timer expires */
struct work_struct expired;
/* Background timer active */
bool armed;
/* Timer IRQ */
const struct kvm_irq_level *irq;
};
int kvm_timer_hyp_init(void);
void kvm_timer_enable(struct kvm *kvm);
void kvm_timer_init(struct kvm *kvm);
void kvm_timer_vcpu_reset(struct kvm_vcpu *vcpu,
const struct kvm_irq_level *irq);
void kvm_timer_vcpu_init(struct kvm_vcpu *vcpu);
void kvm_timer_flush_hwstate(struct kvm_vcpu *vcpu);
void kvm_timer_sync_hwstate(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);
bool kvm_timer_should_fire(struct kvm_vcpu *vcpu);
#endif