diff options
Diffstat (limited to 'arch/x86/kvm/timer.c')
| -rw-r--r-- | arch/x86/kvm/timer.c | 65 |
1 files changed, 0 insertions, 65 deletions
diff --git a/arch/x86/kvm/timer.c b/arch/x86/kvm/timer.c deleted file mode 100644 index fc7a101c4a35..000000000000 --- a/arch/x86/kvm/timer.c +++ /dev/null @@ -1,65 +0,0 @@ -/* - * Kernel-based Virtual Machine driver for Linux - * - * This module enables machines with Intel VT-x extensions to run virtual - * machines without emulation or binary translation. - * - * timer support - * - * Copyright 2010 Red Hat, Inc. and/or its affiliates. - * - * This work is licensed under the terms of the GNU GPL, version 2. See - * the COPYING file in the top-level directory. - */ - -#include <linux/kvm_host.h> -#include <linux/kvm.h> -#include <linux/hrtimer.h> -#include <asm/atomic.h> -#include "kvm_timer.h" - -static int __kvm_timer_fn(struct kvm_vcpu *vcpu, struct kvm_timer *ktimer) -{ - int restart_timer = 0; - wait_queue_head_t *q = &vcpu->wq; - - /* - * There is a race window between reading and incrementing, but we do - * not care about potentially loosing timer events in the !reinject - * case anyway. Note: KVM_REQ_PENDING_TIMER is implicitly checked - * in vcpu_enter_guest. - */ - if (ktimer->reinject || !atomic_read(&ktimer->pending)) { - atomic_inc(&ktimer->pending); - /* FIXME: this code should not know anything about vcpus */ - kvm_make_request(KVM_REQ_PENDING_TIMER, vcpu); - } - - if (waitqueue_active(q)) - wake_up_interruptible(q); - - if (ktimer->t_ops->is_periodic(ktimer)) { - hrtimer_add_expires_ns(&ktimer->timer, ktimer->period); - restart_timer = 1; - } - - return restart_timer; -} - -enum hrtimer_restart kvm_timer_fn(struct hrtimer *data) -{ - int restart_timer; - struct kvm_vcpu *vcpu; - struct kvm_timer *ktimer = container_of(data, struct kvm_timer, timer); - - vcpu = ktimer->vcpu; - if (!vcpu) - return HRTIMER_NORESTART; - - restart_timer = __kvm_timer_fn(vcpu, ktimer); - if (restart_timer) - return HRTIMER_RESTART; - else - return HRTIMER_NORESTART; -} - |