lapic.c (4a4541a40e1fe145c72c4b959fac524a5600d9fb) lapic.c (e9d90d472da97e1b1560bffb89578ba082c88a69)
1
2/*
3 * Local APIC virtualization
4 *
5 * Copyright (C) 2006 Qumranet, Inc.
6 * Copyright (C) 2007 Novell
7 * Copyright (C) 2007 Intel
8 * Copyright 2009 Red Hat, Inc. and/or its affiliates.

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1257 .is_periodic = lapic_is_periodic,
1258};
1259
1260static const struct kvm_io_device_ops apic_mmio_ops = {
1261 .read = apic_mmio_read,
1262 .write = apic_mmio_write,
1263};
1264
1
2/*
3 * Local APIC virtualization
4 *
5 * Copyright (C) 2006 Qumranet, Inc.
6 * Copyright (C) 2007 Novell
7 * Copyright (C) 2007 Intel
8 * Copyright 2009 Red Hat, Inc. and/or its affiliates.

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1257 .is_periodic = lapic_is_periodic,
1258};
1259
1260static const struct kvm_io_device_ops apic_mmio_ops = {
1261 .read = apic_mmio_read,
1262 .write = apic_mmio_write,
1263};
1264
1265static enum hrtimer_restart apic_timer_fn(struct hrtimer *data)
1266{
1267 struct kvm_timer *ktimer = container_of(data, struct kvm_timer, timer);
1268 struct kvm_vcpu *vcpu = ktimer->vcpu;
1269 wait_queue_head_t *q = &vcpu->wq;
1270
1271 /*
1272 * There is a race window between reading and incrementing, but we do
1273 * not care about potentially losing timer events in the !reinject
1274 * case anyway. Note: KVM_REQ_PENDING_TIMER is implicitly checked
1275 * in vcpu_enter_guest.
1276 */
1277 if (ktimer->reinject || !atomic_read(&ktimer->pending)) {
1278 atomic_inc(&ktimer->pending);
1279 /* FIXME: this code should not know anything about vcpus */
1280 kvm_make_request(KVM_REQ_PENDING_TIMER, vcpu);
1281 }
1282
1283 if (waitqueue_active(q))
1284 wake_up_interruptible(q);
1285
1286 if (ktimer->t_ops->is_periodic(ktimer)) {
1287 hrtimer_add_expires_ns(&ktimer->timer, ktimer->period);
1288 return HRTIMER_RESTART;
1289 } else
1290 return HRTIMER_NORESTART;
1291}
1292
1265int kvm_create_lapic(struct kvm_vcpu *vcpu)
1266{
1267 struct kvm_lapic *apic;
1268
1269 ASSERT(vcpu != NULL);
1270 apic_debug("apic_init %d\n", vcpu->vcpu_id);
1271
1272 apic = kzalloc(sizeof(*apic), GFP_KERNEL);

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1280 printk(KERN_ERR "malloc apic regs error for vcpu %x\n",
1281 vcpu->vcpu_id);
1282 goto nomem_free_apic;
1283 }
1284 apic->vcpu = vcpu;
1285
1286 hrtimer_init(&apic->lapic_timer.timer, CLOCK_MONOTONIC,
1287 HRTIMER_MODE_ABS);
1293int kvm_create_lapic(struct kvm_vcpu *vcpu)
1294{
1295 struct kvm_lapic *apic;
1296
1297 ASSERT(vcpu != NULL);
1298 apic_debug("apic_init %d\n", vcpu->vcpu_id);
1299
1300 apic = kzalloc(sizeof(*apic), GFP_KERNEL);

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1308 printk(KERN_ERR "malloc apic regs error for vcpu %x\n",
1309 vcpu->vcpu_id);
1310 goto nomem_free_apic;
1311 }
1312 apic->vcpu = vcpu;
1313
1314 hrtimer_init(&apic->lapic_timer.timer, CLOCK_MONOTONIC,
1315 HRTIMER_MODE_ABS);
1288 apic->lapic_timer.timer.function = kvm_timer_fn;
1316 apic->lapic_timer.timer.function = apic_timer_fn;
1289 apic->lapic_timer.t_ops = &lapic_timer_ops;
1290 apic->lapic_timer.kvm = vcpu->kvm;
1291 apic->lapic_timer.vcpu = vcpu;
1292
1293 apic->base_address = APIC_DEFAULT_PHYS_BASE;
1294 vcpu->arch.apic_base = APIC_DEFAULT_PHYS_BASE;
1295
1296 kvm_lapic_reset(vcpu);

--- 284 unchanged lines hidden --- 		1317 apic->lapic_timer.t_ops = &lapic_timer_ops;
1318 apic->lapic_timer.kvm = vcpu->kvm;
1319 apic->lapic_timer.vcpu = vcpu;
1320
1321 apic->base_address = APIC_DEFAULT_PHYS_BASE;
1322 vcpu->arch.apic_base = APIC_DEFAULT_PHYS_BASE;
1323
1324 kvm_lapic_reset(vcpu);

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