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Diffstat (limited to 'arch/x86/kvm/i8254.h')
-rw-r--r--arch/x86/kvm/i8254.h33
1 files changed, 20 insertions, 13 deletions
diff --git a/arch/x86/kvm/i8254.h b/arch/x86/kvm/i8254.h
index dd1b16b611b0..60fa499d2f8a 100644
--- a/arch/x86/kvm/i8254.h
+++ b/arch/x86/kvm/i8254.h
@@ -1,10 +1,16 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __I8254_H
#define __I8254_H
#include <linux/kthread.h>
-#include "iodev.h"
+#include <kvm/iodev.h>
+#include <uapi/asm/kvm.h>
+
+#include "ioapic.h"
+
+#ifdef CONFIG_KVM_IOAPIC
struct kvm_kpit_channel_state {
u32 count; /* can be 65536 */
u16 latched_count;
@@ -22,19 +28,17 @@ struct kvm_kpit_channel_state {
};
struct kvm_kpit_state {
+ /* All members before "struct mutex lock" are protected by the lock. */
struct kvm_kpit_channel_state channels[3];
u32 flags;
bool is_periodic;
s64 period; /* unit: ns */
struct hrtimer timer;
- atomic_t pending; /* accumulated triggered timers */
- bool reinject;
- struct kvm *kvm;
- u32 speaker_data_on;
+
struct mutex lock;
- struct kvm_pit *pit;
- spinlock_t inject_lock;
- unsigned long irq_ack;
+ atomic_t reinject;
+ atomic_t pending; /* accumulated triggered timers */
+ atomic_t irq_ack;
struct kvm_irq_ack_notifier irq_ack_notifier;
};
@@ -43,10 +47,8 @@ struct kvm_pit {
struct kvm_io_device speaker_dev;
struct kvm *kvm;
struct kvm_kpit_state pit_state;
- int irq_source_id;
struct kvm_irq_mask_notifier mask_notifier;
- struct kthread_worker worker;
- struct task_struct *worker_task;
+ struct kthread_worker *worker;
struct kthread_work expired;
};
@@ -57,9 +59,14 @@ struct kvm_pit {
#define KVM_MAX_PIT_INTR_INTERVAL HZ / 100
#define KVM_PIT_CHANNEL_MASK 0x3
-void kvm_pit_load_count(struct kvm *kvm, int channel, u32 val, int hpet_legacy_start);
+int kvm_vm_ioctl_get_pit(struct kvm *kvm, struct kvm_pit_state *ps);
+int kvm_vm_ioctl_set_pit(struct kvm *kvm, struct kvm_pit_state *ps);
+int kvm_vm_ioctl_get_pit2(struct kvm *kvm, struct kvm_pit_state2 *ps);
+int kvm_vm_ioctl_set_pit2(struct kvm *kvm, struct kvm_pit_state2 *ps);
+int kvm_vm_ioctl_reinject(struct kvm *kvm, struct kvm_reinject_control *control);
+
struct kvm_pit *kvm_create_pit(struct kvm *kvm, u32 flags);
void kvm_free_pit(struct kvm *kvm);
-void kvm_pit_reset(struct kvm_pit *pit);
+#endif /* CONFIG_KVM_IOAPIC */
#endif