[deliverable/linux.git] / include / linux / kvm_host.h

#ifndef __KVM_HOST_H
#define __KVM_HOST_H

/*
 * This work is licensed under the terms of the GNU GPL, version 2.  See
 * the COPYING file in the top-level directory.
 */

#include <linux/types.h>
#include <linux/hardirq.h>
#include <linux/list.h>
#include <linux/mutex.h>
#include <linux/spinlock.h>
#include <linux/signal.h>
#include <linux/sched.h>
#include <linux/mm.h>
#include <linux/preempt.h>
#include <linux/marker.h>
#include <linux/msi.h>
#include <asm/signal.h>

#include <linux/kvm.h>
#include <linux/kvm_para.h>

#include <linux/kvm_types.h>

#include <asm/kvm_host.h>

/*
 * vcpu->requests bit members
 */
#define KVM_REQ_TLB_FLUSH          0
#define KVM_REQ_MIGRATE_TIMER      1
#define KVM_REQ_REPORT_TPR_ACCESS  2
#define KVM_REQ_MMU_RELOAD         3
#define KVM_REQ_TRIPLE_FAULT       4
#define KVM_REQ_PENDING_TIMER      5
#define KVM_REQ_UNHALT             6
#define KVM_REQ_MMU_SYNC           7
#define KVM_REQ_KVMCLOCK_UPDATE    8
#define KVM_REQ_KICK               9

#define KVM_USERSPACE_IRQ_SOURCE_ID	0

struct kvm_vcpu;
extern struct kmem_cache *kvm_vcpu_cache;

/*
 * It would be nice to use something smarter than a linear search, TBD...
 * Thankfully we dont expect many devices to register (famous last words :),
 * so until then it will suffice.  At least its abstracted so we can change
 * in one place.
 */
struct kvm_io_bus {
	int                   dev_count;
#define NR_IOBUS_DEVS 6
	struct kvm_io_device *devs[NR_IOBUS_DEVS];
};

void kvm_io_bus_init(struct kvm_io_bus *bus);
void kvm_io_bus_destroy(struct kvm_io_bus *bus);
struct kvm_io_device *kvm_io_bus_find_dev(struct kvm_io_bus *bus,
					  gpa_t addr, int len, int is_write);
void kvm_io_bus_register_dev(struct kvm_io_bus *bus,
			     struct kvm_io_device *dev);

struct kvm_vcpu {
	struct kvm *kvm;
#ifdef CONFIG_PREEMPT_NOTIFIERS
	struct preempt_notifier preempt_notifier;
#endif
	int vcpu_id;
	struct mutex mutex;
	int   cpu;
	struct kvm_run *run;
	unsigned long requests;
	unsigned long guest_debug;
	int fpu_active;
	int guest_fpu_loaded;
	wait_queue_head_t wq;
	int sigset_active;
	sigset_t sigset;
	struct kvm_vcpu_stat stat;

#ifdef CONFIG_HAS_IOMEM
	int mmio_needed;
	int mmio_read_completed;
	int mmio_is_write;
	int mmio_size;
	unsigned char mmio_data[8];
	gpa_t mmio_phys_addr;
#endif

	struct kvm_vcpu_arch arch;
};

struct kvm_memory_slot {
	gfn_t base_gfn;
	unsigned long npages;
	unsigned long flags;
	unsigned long *rmap;
	unsigned long *dirty_bitmap;
	struct {
		unsigned long rmap_pde;
		int write_count;
	} *lpage_info;
	unsigned long userspace_addr;
	int user_alloc;
};

struct kvm_kernel_irq_routing_entry {
	u32 gsi;
	int (*set)(struct kvm_kernel_irq_routing_entry *e,
		    struct kvm *kvm, int level);
	union {
		struct {
			unsigned irqchip;
			unsigned pin;
		} irqchip;
		struct msi_msg msi;
	};
	struct list_head link;
};

struct kvm {
	struct mutex lock; /* protects the vcpus array and APIC accesses */
	spinlock_t mmu_lock;
	spinlock_t requests_lock;
	struct rw_semaphore slots_lock;
	struct mm_struct *mm; /* userspace tied to this vm */
	int nmemslots;
	struct kvm_memory_slot memslots[KVM_MEMORY_SLOTS +
					KVM_PRIVATE_MEM_SLOTS];
	struct kvm_vcpu *vcpus[KVM_MAX_VCPUS];
	struct list_head vm_list;
	struct kvm_io_bus mmio_bus;
	struct kvm_io_bus pio_bus;
	struct kvm_vm_stat stat;
	struct kvm_arch arch;
	atomic_t users_count;
#ifdef KVM_COALESCED_MMIO_PAGE_OFFSET
	struct kvm_coalesced_mmio_dev *coalesced_mmio_dev;
	struct kvm_coalesced_mmio_ring *coalesced_mmio_ring;
#endif

#ifdef CONFIG_HAVE_KVM_IRQCHIP
	struct list_head irq_routing; /* of kvm_kernel_irq_routing_entry */
	struct hlist_head mask_notifier_list;
#endif

#ifdef KVM_ARCH_WANT_MMU_NOTIFIER
	struct mmu_notifier mmu_notifier;
	unsigned long mmu_notifier_seq;
	long mmu_notifier_count;
#endif
};

/* The guest did something we don't support. */
#define pr_unimpl(vcpu, fmt, ...)					\
 do {									\
	if (printk_ratelimit())						\
		printk(KERN_ERR "kvm: %i: cpu%i " fmt,			\
		       current->tgid, (vcpu)->vcpu_id , ## __VA_ARGS__); \
 } while (0)

#define kvm_printf(kvm, fmt ...) printk(KERN_DEBUG fmt)
#define vcpu_printf(vcpu, fmt...) kvm_printf(vcpu->kvm, fmt)

int kvm_vcpu_init(struct kvm_vcpu *vcpu, struct kvm *kvm, unsigned id);
void kvm_vcpu_uninit(struct kvm_vcpu *vcpu);

void vcpu_load(struct kvm_vcpu *vcpu);
void vcpu_put(struct kvm_vcpu *vcpu);

int kvm_init(void *opaque, unsigned int vcpu_size,
		  struct module *module);
void kvm_exit(void);

void kvm_get_kvm(struct kvm *kvm);
void kvm_put_kvm(struct kvm *kvm);

#define HPA_MSB ((sizeof(hpa_t) * 8) - 1)
#define HPA_ERR_MASK ((hpa_t)1 << HPA_MSB)
static inline int is_error_hpa(hpa_t hpa) { return hpa >> HPA_MSB; }
struct page *gva_to_page(struct kvm_vcpu *vcpu, gva_t gva);

extern struct page *bad_page;
extern pfn_t bad_pfn;

int is_error_page(struct page *page);
int is_error_pfn(pfn_t pfn);
int kvm_is_error_hva(unsigned long addr);
int kvm_set_memory_region(struct kvm *kvm,
			  struct kvm_userspace_memory_region *mem,
			  int user_alloc);
int __kvm_set_memory_region(struct kvm *kvm,
			    struct kvm_userspace_memory_region *mem,
			    int user_alloc);
int kvm_arch_set_memory_region(struct kvm *kvm,
				struct kvm_userspace_memory_region *mem,
				struct kvm_memory_slot old,
				int user_alloc);
void kvm_arch_flush_shadow(struct kvm *kvm);
gfn_t unalias_gfn(struct kvm *kvm, gfn_t gfn);
struct page *gfn_to_page(struct kvm *kvm, gfn_t gfn);
unsigned long gfn_to_hva(struct kvm *kvm, gfn_t gfn);
void kvm_release_page_clean(struct page *page);
void kvm_release_page_dirty(struct page *page);
void kvm_set_page_dirty(struct page *page);
void kvm_set_page_accessed(struct page *page);

pfn_t gfn_to_pfn(struct kvm *kvm, gfn_t gfn);
void kvm_release_pfn_dirty(pfn_t);
void kvm_release_pfn_clean(pfn_t pfn);
void kvm_set_pfn_dirty(pfn_t pfn);
void kvm_set_pfn_accessed(pfn_t pfn);
void kvm_get_pfn(pfn_t pfn);

int kvm_read_guest_page(struct kvm *kvm, gfn_t gfn, void *data, int offset,
			int len);
int kvm_read_guest_atomic(struct kvm *kvm, gpa_t gpa, void *data,
			  unsigned long len);
int kvm_read_guest(struct kvm *kvm, gpa_t gpa, void *data, unsigned long len);
int kvm_write_guest_page(struct kvm *kvm, gfn_t gfn, const void *data,
			 int offset, int len);
int kvm_write_guest(struct kvm *kvm, gpa_t gpa, const void *data,
		    unsigned long len);
int kvm_clear_guest_page(struct kvm *kvm, gfn_t gfn, int offset, int len);
int kvm_clear_guest(struct kvm *kvm, gpa_t gpa, unsigned long len);
struct kvm_memory_slot *gfn_to_memslot(struct kvm *kvm, gfn_t gfn);
int kvm_is_visible_gfn(struct kvm *kvm, gfn_t gfn);
void mark_page_dirty(struct kvm *kvm, gfn_t gfn);

void kvm_vcpu_block(struct kvm_vcpu *vcpu);
void kvm_resched(struct kvm_vcpu *vcpu);
void kvm_load_guest_fpu(struct kvm_vcpu *vcpu);
void kvm_put_guest_fpu(struct kvm_vcpu *vcpu);
void kvm_flush_remote_tlbs(struct kvm *kvm);
void kvm_reload_remote_mmus(struct kvm *kvm);

long kvm_arch_dev_ioctl(struct file *filp,
			unsigned int ioctl, unsigned long arg);
long kvm_arch_vcpu_ioctl(struct file *filp,
			 unsigned int ioctl, unsigned long arg);
void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu);
void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu);

int kvm_dev_ioctl_check_extension(long ext);

int kvm_get_dirty_log(struct kvm *kvm,
			struct kvm_dirty_log *log, int *is_dirty);
int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm,
				struct kvm_dirty_log *log);

int kvm_vm_ioctl_set_memory_region(struct kvm *kvm,
				   struct
				   kvm_userspace_memory_region *mem,
				   int user_alloc);
long kvm_arch_vm_ioctl(struct file *filp,
		       unsigned int ioctl, unsigned long arg);

int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu);
int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu);

int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu,
				    struct kvm_translation *tr);

int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs);
int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs);
int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu,
				  struct kvm_sregs *sregs);
int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
				  struct kvm_sregs *sregs);
int kvm_arch_vcpu_ioctl_get_mpstate(struct kvm_vcpu *vcpu,
				    struct kvm_mp_state *mp_state);
int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu,
				    struct kvm_mp_state *mp_state);
int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
					struct kvm_guest_debug *dbg);
int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run);

int kvm_arch_init(void *opaque);
void kvm_arch_exit(void);

int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu);
void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu);

void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu);
void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu);
void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu);
struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, unsigned int id);
int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu);
void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu);

int kvm_arch_vcpu_reset(struct kvm_vcpu *vcpu);
void kvm_arch_hardware_enable(void *garbage);
void kvm_arch_hardware_disable(void *garbage);
int kvm_arch_hardware_setup(void);
void kvm_arch_hardware_unsetup(void);
void kvm_arch_check_processor_compat(void *rtn);
int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu);
int kvm_arch_interrupt_allowed(struct kvm_vcpu *vcpu);

void kvm_free_physmem(struct kvm *kvm);

struct  kvm *kvm_arch_create_vm(void);
void kvm_arch_destroy_vm(struct kvm *kvm);
void kvm_free_all_assigned_devices(struct kvm *kvm);
void kvm_arch_sync_events(struct kvm *kvm);

int kvm_cpu_get_interrupt(struct kvm_vcpu *v);
int kvm_cpu_has_interrupt(struct kvm_vcpu *v);
int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu);
void kvm_vcpu_kick(struct kvm_vcpu *vcpu);

int kvm_is_mmio_pfn(pfn_t pfn);

struct kvm_irq_ack_notifier {
	struct hlist_node link;
	unsigned gsi;
	void (*irq_acked)(struct kvm_irq_ack_notifier *kian);
};

#define KVM_ASSIGNED_MSIX_PENDING		0x1
struct kvm_guest_msix_entry {
	u32 vector;
	u16 entry;
	u16 flags;
};

struct kvm_assigned_dev_kernel {
	struct kvm_irq_ack_notifier ack_notifier;
	struct work_struct interrupt_work;
	struct list_head list;
	int assigned_dev_id;
	int host_busnr;
	int host_devfn;
	unsigned int entries_nr;
	int host_irq;
	bool host_irq_disabled;
	struct msix_entry *host_msix_entries;
	int guest_irq;
	struct kvm_guest_msix_entry *guest_msix_entries;
	unsigned long irq_requested_type;
	int irq_source_id;
	int flags;
	struct pci_dev *dev;
	struct kvm *kvm;
	spinlock_t assigned_dev_lock;
};

struct kvm_irq_mask_notifier {
	void (*func)(struct kvm_irq_mask_notifier *kimn, bool masked);
	int irq;
	struct hlist_node link;
};

void kvm_register_irq_mask_notifier(struct kvm *kvm, int irq,
				    struct kvm_irq_mask_notifier *kimn);
void kvm_unregister_irq_mask_notifier(struct kvm *kvm, int irq,
				      struct kvm_irq_mask_notifier *kimn);
void kvm_fire_mask_notifiers(struct kvm *kvm, int irq, bool mask);

int kvm_set_irq(struct kvm *kvm, int irq_source_id, int irq, int level);
void kvm_notify_acked_irq(struct kvm *kvm, unsigned irqchip, unsigned pin);
void kvm_register_irq_ack_notifier(struct kvm *kvm,
				   struct kvm_irq_ack_notifier *kian);
void kvm_unregister_irq_ack_notifier(struct kvm_irq_ack_notifier *kian);
int kvm_request_irq_source_id(struct kvm *kvm);
void kvm_free_irq_source_id(struct kvm *kvm, int irq_source_id);

/* For vcpu->arch.iommu_flags */
#define KVM_IOMMU_CACHE_COHERENCY	0x1

#ifdef CONFIG_IOMMU_API
int kvm_iommu_map_pages(struct kvm *kvm, gfn_t base_gfn,
			unsigned long npages);
int kvm_iommu_map_guest(struct kvm *kvm);
int kvm_iommu_unmap_guest(struct kvm *kvm);
int kvm_assign_device(struct kvm *kvm,
		      struct kvm_assigned_dev_kernel *assigned_dev);
int kvm_deassign_device(struct kvm *kvm,
			struct kvm_assigned_dev_kernel *assigned_dev);
#else /* CONFIG_IOMMU_API */
static inline int kvm_iommu_map_pages(struct kvm *kvm,
				      gfn_t base_gfn,
				      unsigned long npages)
{
	return 0;
}

static inline int kvm_iommu_map_guest(struct kvm *kvm)
{
	return -ENODEV;
}

static inline int kvm_iommu_unmap_guest(struct kvm *kvm)
{
	return 0;
}

static inline int kvm_assign_device(struct kvm *kvm,
		struct kvm_assigned_dev_kernel *assigned_dev)
{
	return 0;
}

static inline int kvm_deassign_device(struct kvm *kvm,
		struct kvm_assigned_dev_kernel *assigned_dev)
{
	return 0;
}
#endif /* CONFIG_IOMMU_API */

static inline void kvm_guest_enter(void)
{
	account_system_vtime(current);
	current->flags |= PF_VCPU;
}

static inline void kvm_guest_exit(void)
{
	account_system_vtime(current);
	current->flags &= ~PF_VCPU;
}

static inline int memslot_id(struct kvm *kvm, struct kvm_memory_slot *slot)
{
	return slot - kvm->memslots;
}

static inline gpa_t gfn_to_gpa(gfn_t gfn)
{
	return (gpa_t)gfn << PAGE_SHIFT;
}

static inline hpa_t pfn_to_hpa(pfn_t pfn)
{
	return (hpa_t)pfn << PAGE_SHIFT;
}

static inline void kvm_migrate_timers(struct kvm_vcpu *vcpu)
{
	set_bit(KVM_REQ_MIGRATE_TIMER, &vcpu->requests);
}

enum kvm_stat_kind {
	KVM_STAT_VM,
	KVM_STAT_VCPU,
};

struct kvm_stats_debugfs_item {
	const char *name;
	int offset;
	enum kvm_stat_kind kind;
	struct dentry *dentry;
};
extern struct kvm_stats_debugfs_item debugfs_entries[];
extern struct dentry *kvm_debugfs_dir;

#define KVMTRACE_5D(evt, vcpu, d1, d2, d3, d4, d5, name) \
	trace_mark(kvm_trace_##name, "%u %p %u %u %u %u %u %u", KVM_TRC_##evt, \
						vcpu, 5, d1, d2, d3, d4, d5)
#define KVMTRACE_4D(evt, vcpu, d1, d2, d3, d4, name) \
	trace_mark(kvm_trace_##name, "%u %p %u %u %u %u %u %u", KVM_TRC_##evt, \
						vcpu, 4, d1, d2, d3, d4, 0)
#define KVMTRACE_3D(evt, vcpu, d1, d2, d3, name) \
	trace_mark(kvm_trace_##name, "%u %p %u %u %u %u %u %u", KVM_TRC_##evt, \
						vcpu, 3, d1, d2, d3, 0, 0)
#define KVMTRACE_2D(evt, vcpu, d1, d2, name) \
	trace_mark(kvm_trace_##name, "%u %p %u %u %u %u %u %u", KVM_TRC_##evt, \
						vcpu, 2, d1, d2, 0, 0, 0)
#define KVMTRACE_1D(evt, vcpu, d1, name) \
	trace_mark(kvm_trace_##name, "%u %p %u %u %u %u %u %u", KVM_TRC_##evt, \
						vcpu, 1, d1, 0, 0, 0, 0)
#define KVMTRACE_0D(evt, vcpu, name) \
	trace_mark(kvm_trace_##name, "%u %p %u %u %u %u %u %u", KVM_TRC_##evt, \
						vcpu, 0, 0, 0, 0, 0, 0)

#ifdef CONFIG_KVM_TRACE
int kvm_trace_ioctl(unsigned int ioctl, unsigned long arg);
void kvm_trace_cleanup(void);
#else
static inline
int kvm_trace_ioctl(unsigned int ioctl, unsigned long arg)
{
	return -EINVAL;
}
#define kvm_trace_cleanup() ((void)0)
#endif

#ifdef KVM_ARCH_WANT_MMU_NOTIFIER
static inline int mmu_notifier_retry(struct kvm_vcpu *vcpu, unsigned long mmu_seq)
{
	if (unlikely(vcpu->kvm->mmu_notifier_count))
		return 1;
	/*
	 * Both reads happen under the mmu_lock and both values are
	 * modified under mmu_lock, so there's no need of smb_rmb()
	 * here in between, otherwise mmu_notifier_count should be
	 * read before mmu_notifier_seq, see
	 * mmu_notifier_invalidate_range_end write side.
	 */
	if (vcpu->kvm->mmu_notifier_seq != mmu_seq)
		return 1;
	return 0;
}
#endif

#ifdef CONFIG_HAVE_KVM_IRQCHIP

#define KVM_MAX_IRQ_ROUTES 1024

int kvm_setup_default_irq_routing(struct kvm *kvm);
int kvm_set_irq_routing(struct kvm *kvm,
			const struct kvm_irq_routing_entry *entries,
			unsigned nr,
			unsigned flags);
void kvm_free_irq_routing(struct kvm *kvm);

#else

static inline void kvm_free_irq_routing(struct kvm *kvm) {}

#endif

#endif
Commit	Line	Data
edf88417 AK	1	#ifndef __KVM_HOST_H
edf88417 AK	2	#define __KVM_HOST_H
6aa8b732 AK	3
	4	/*
	5	* This work is licensed under the terms of the GNU GPL, version 2. See
	6	* the COPYING file in the top-level directory.
	7	*/
	8
	9	#include <linux/types.h>
e56a7a28	10	#include <linux/hardirq.h>
6aa8b732 AK	11	#include <linux/list.h>
	12	#include <linux/mutex.h>
	13	#include <linux/spinlock.h>
06ff0d37 MR	14	#include <linux/signal.h>
06ff0d37 MR	15	#include <linux/sched.h>
6aa8b732	16	#include <linux/mm.h>
15ad7146	17	#include <linux/preempt.h>
d4c9ff2d	18	#include <linux/marker.h>
0937c48d	19	#include <linux/msi.h>
e8edc6e0	20	#include <asm/signal.h>
6aa8b732	21
6aa8b732	22	#include <linux/kvm.h>
102d8325	23	#include <linux/kvm_para.h>
6aa8b732	24
edf88417	25	#include <linux/kvm_types.h>
d77a39d9	26
edf88417	27	#include <asm/kvm_host.h>
d657a98e	28
d9e368d6 AK	29	/*
	30	* vcpu->requests bit members
	31	*/
3176bc3e	32	#define KVM_REQ_TLB_FLUSH 0
2f52d58c	33	#define KVM_REQ_MIGRATE_TIMER 1
b209749f	34	#define KVM_REQ_REPORT_TPR_ACCESS 2
2e53d63a	35	#define KVM_REQ_MMU_RELOAD 3
71c4dfaf	36	#define KVM_REQ_TRIPLE_FAULT 4
06e05645	37	#define KVM_REQ_PENDING_TIMER 5
d7690175	38	#define KVM_REQ_UNHALT 6
4731d4c7	39	#define KVM_REQ_MMU_SYNC 7
c8076604	40	#define KVM_REQ_KVMCLOCK_UPDATE 8
32f88400	41	#define KVM_REQ_KICK 9
6aa8b732	42
5550af4d SY	43	#define KVM_USERSPACE_IRQ_SOURCE_ID 0
5550af4d SY	44
6aa8b732	45	struct kvm_vcpu;
c16f862d	46	extern struct kmem_cache *kvm_vcpu_cache;
6aa8b732	47
2eeb2e94 GH	48	/*
	49	* It would be nice to use something smarter than a linear search, TBD...
	50	* Thankfully we dont expect many devices to register (famous last words :),
	51	* so until then it will suffice. At least its abstracted so we can change
	52	* in one place.
	53	*/
	54	struct kvm_io_bus {
	55	int dev_count;
	56	#define NR_IOBUS_DEVS 6
	57	struct kvm_io_device *devs[NR_IOBUS_DEVS];
	58	};
	59
	60	void kvm_io_bus_init(struct kvm_io_bus *bus);
	61	void kvm_io_bus_destroy(struct kvm_io_bus *bus);
92760499 LV	62	struct kvm_io_device kvm_io_bus_find_dev(struct kvm_io_bus bus,
92760499 LV	63	gpa_t addr, int len, int is_write);
2eeb2e94 GH	64	void kvm_io_bus_register_dev(struct kvm_io_bus *bus,
	65	struct kvm_io_device *dev);
	66
d17fbbf7 ZX	67	struct kvm_vcpu {
d17fbbf7 ZX	68	struct kvm *kvm;
31bb117e	69	#ifdef CONFIG_PREEMPT_NOTIFIERS
d17fbbf7	70	struct preempt_notifier preempt_notifier;
31bb117e	71	#endif
d17fbbf7 ZX	72	int vcpu_id;
	73	struct mutex mutex;
	74	int cpu;
	75	struct kvm_run *run;
d17fbbf7	76	unsigned long requests;
d0bfb940	77	unsigned long guest_debug;
d17fbbf7 ZX	78	int fpu_active;
	79	int guest_fpu_loaded;
	80	wait_queue_head_t wq;
	81	int sigset_active;
	82	sigset_t sigset;
	83	struct kvm_vcpu_stat stat;
	84
34c16eec	85	#ifdef CONFIG_HAS_IOMEM
d17fbbf7 ZX	86	int mmio_needed;
	87	int mmio_read_completed;
	88	int mmio_is_write;
	89	int mmio_size;
	90	unsigned char mmio_data[8];
6aa8b732	91	gpa_t mmio_phys_addr;
34c16eec	92	#endif
1165f5fe	93
d657a98e ZX	94	struct kvm_vcpu_arch arch;
	95	};
	96
6aa8b732 AK	97	struct kvm_memory_slot {
	98	gfn_t base_gfn;
	99	unsigned long npages;
	100	unsigned long flags;
290fc38d	101	unsigned long *rmap;
6aa8b732	102	unsigned long *dirty_bitmap;
05da4558 MT	103	struct {
	104	unsigned long rmap_pde;
	105	int write_count;
	106	} *lpage_info;
8a7ae055	107	unsigned long userspace_addr;
80b14b5b	108	int user_alloc;
6aa8b732 AK	109	};
6aa8b732 AK	110
399ec807 AK	111	struct kvm_kernel_irq_routing_entry {
399ec807 AK	112	u32 gsi;
4925663a	113	int (set)(struct kvm_kernel_irq_routing_entry e,
399ec807 AK	114	struct kvm *kvm, int level);
	115	union {
	116	struct {
	117	unsigned irqchip;
	118	unsigned pin;
	119	} irqchip;
79950e10	120	struct msi_msg msi;
399ec807 AK	121	};
	122	struct list_head link;
	123	};
	124
6aa8b732	125	struct kvm {
aaee2c94 MT	126	struct mutex lock; /* protects the vcpus array and APIC accesses */
aaee2c94 MT	127	spinlock_t mmu_lock;
84261923	128	spinlock_t requests_lock;
72dc67a6	129	struct rw_semaphore slots_lock;
6d4e4c4f	130	struct mm_struct mm; / userspace tied to this vm */
6aa8b732	131	int nmemslots;
e0d62c7f IE	132	struct kvm_memory_slot memslots[KVM_MEMORY_SLOTS +
e0d62c7f IE	133	KVM_PRIVATE_MEM_SLOTS];
fb3f0f51	134	struct kvm_vcpu *vcpus[KVM_MAX_VCPUS];
133de902	135	struct list_head vm_list;
2eeb2e94	136	struct kvm_io_bus mmio_bus;
74906345	137	struct kvm_io_bus pio_bus;
ba1389b7	138	struct kvm_vm_stat stat;
d69fb81f	139	struct kvm_arch arch;
d39f13b0	140	atomic_t users_count;
5f94c174 LV	141	#ifdef KVM_COALESCED_MMIO_PAGE_OFFSET
	142	struct kvm_coalesced_mmio_dev *coalesced_mmio_dev;
	143	struct kvm_coalesced_mmio_ring *coalesced_mmio_ring;
	144	#endif
e930bffe	145
75858a84	146	#ifdef CONFIG_HAVE_KVM_IRQCHIP
399ec807	147	struct list_head irq_routing; /* of kvm_kernel_irq_routing_entry */
75858a84 AK	148	struct hlist_head mask_notifier_list;
	149	#endif
	150
e930bffe AA	151	#ifdef KVM_ARCH_WANT_MMU_NOTIFIER
	152	struct mmu_notifier mmu_notifier;
	153	unsigned long mmu_notifier_seq;
	154	long mmu_notifier_count;
	155	#endif
6aa8b732 AK	156	};
6aa8b732 AK	157
f0242478 RR	158	/* The guest did something we don't support. */
	159	#define pr_unimpl(vcpu, fmt, ...) \
	160	do { \
	161	if (printk_ratelimit()) \
	162	printk(KERN_ERR "kvm: %i: cpu%i " fmt, \
	163	current->tgid, (vcpu)->vcpu_id , ## __VA_ARGS__); \
d77c26fc	164	} while (0)
f0242478	165
6aa8b732 AK	166	#define kvm_printf(kvm, fmt ...) printk(KERN_DEBUG fmt)
	167	#define vcpu_printf(vcpu, fmt...) kvm_printf(vcpu->kvm, fmt)
	168
fb3f0f51 RR	169	int kvm_vcpu_init(struct kvm_vcpu vcpu, struct kvm kvm, unsigned id);
	170	void kvm_vcpu_uninit(struct kvm_vcpu *vcpu);
	171
313a3dc7 CO	172	void vcpu_load(struct kvm_vcpu *vcpu);
	173	void vcpu_put(struct kvm_vcpu *vcpu);
	174
f8c16bba	175	int kvm_init(void *opaque, unsigned int vcpu_size,
c16f862d	176	struct module *module);
cb498ea2	177	void kvm_exit(void);
6aa8b732	178
d39f13b0 IE	179	void kvm_get_kvm(struct kvm *kvm);
	180	void kvm_put_kvm(struct kvm *kvm);
	181
6aa8b732 AK	182	#define HPA_MSB ((sizeof(hpa_t) * 8) - 1)
	183	#define HPA_ERR_MASK ((hpa_t)1 << HPA_MSB)
	184	static inline int is_error_hpa(hpa_t hpa) { return hpa >> HPA_MSB; }
039576c0	185	struct page gva_to_page(struct kvm_vcpu vcpu, gva_t gva);
6aa8b732	186
cea7bb21	187	extern struct page *bad_page;
35149e21	188	extern pfn_t bad_pfn;
6aa8b732	189
cea7bb21	190	int is_error_page(struct page *page);
35149e21	191	int is_error_pfn(pfn_t pfn);
f9d46eb0	192	int kvm_is_error_hva(unsigned long addr);
210c7c4d IE	193	int kvm_set_memory_region(struct kvm *kvm,
	194	struct kvm_userspace_memory_region *mem,
	195	int user_alloc);
f78e0e2e SY	196	int __kvm_set_memory_region(struct kvm *kvm,
	197	struct kvm_userspace_memory_region *mem,
	198	int user_alloc);
0de10343 ZX	199	int kvm_arch_set_memory_region(struct kvm *kvm,
	200	struct kvm_userspace_memory_region *mem,
	201	struct kvm_memory_slot old,
	202	int user_alloc);
34d4cb8f	203	void kvm_arch_flush_shadow(struct kvm *kvm);
290fc38d	204	gfn_t unalias_gfn(struct kvm *kvm, gfn_t gfn);
954bbbc2	205	struct page gfn_to_page(struct kvm kvm, gfn_t gfn);
05da4558	206	unsigned long gfn_to_hva(struct kvm *kvm, gfn_t gfn);
b4231d61 IE	207	void kvm_release_page_clean(struct page *page);
b4231d61 IE	208	void kvm_release_page_dirty(struct page *page);
35149e21 AL	209	void kvm_set_page_dirty(struct page *page);
	210	void kvm_set_page_accessed(struct page *page);
	211
	212	pfn_t gfn_to_pfn(struct kvm *kvm, gfn_t gfn);
	213	void kvm_release_pfn_dirty(pfn_t);
	214	void kvm_release_pfn_clean(pfn_t pfn);
	215	void kvm_set_pfn_dirty(pfn_t pfn);
	216	void kvm_set_pfn_accessed(pfn_t pfn);
	217	void kvm_get_pfn(pfn_t pfn);
	218
195aefde IE	219	int kvm_read_guest_page(struct kvm kvm, gfn_t gfn, void data, int offset,
195aefde IE	220	int len);
7ec54588 MT	221	int kvm_read_guest_atomic(struct kvm kvm, gpa_t gpa, void data,
7ec54588 MT	222	unsigned long len);
195aefde IE	223	int kvm_read_guest(struct kvm kvm, gpa_t gpa, void data, unsigned long len);
	224	int kvm_write_guest_page(struct kvm kvm, gfn_t gfn, const void data,
	225	int offset, int len);
	226	int kvm_write_guest(struct kvm kvm, gpa_t gpa, const void data,
	227	unsigned long len);
	228	int kvm_clear_guest_page(struct kvm *kvm, gfn_t gfn, int offset, int len);
	229	int kvm_clear_guest(struct kvm *kvm, gpa_t gpa, unsigned long len);
6aa8b732	230	struct kvm_memory_slot gfn_to_memslot(struct kvm kvm, gfn_t gfn);
e0d62c7f	231	int kvm_is_visible_gfn(struct kvm *kvm, gfn_t gfn);
6aa8b732 AK	232	void mark_page_dirty(struct kvm *kvm, gfn_t gfn);
6aa8b732 AK	233
8776e519	234	void kvm_vcpu_block(struct kvm_vcpu *vcpu);
6aa8b732	235	void kvm_resched(struct kvm_vcpu *vcpu);
7702fd1f AK	236	void kvm_load_guest_fpu(struct kvm_vcpu *vcpu);
7702fd1f AK	237	void kvm_put_guest_fpu(struct kvm_vcpu *vcpu);
d9e368d6	238	void kvm_flush_remote_tlbs(struct kvm *kvm);
2e53d63a	239	void kvm_reload_remote_mmus(struct kvm *kvm);
6aa8b732	240
043405e1 CO	241	long kvm_arch_dev_ioctl(struct file *filp,
043405e1 CO	242	unsigned int ioctl, unsigned long arg);
313a3dc7 CO	243	long kvm_arch_vcpu_ioctl(struct file *filp,
	244	unsigned int ioctl, unsigned long arg);
	245	void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu);
	246	void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu);
018d00d2 ZX	247
	248	int kvm_dev_ioctl_check_extension(long ext);
	249
5bb064dc ZX	250	int kvm_get_dirty_log(struct kvm *kvm,
	251	struct kvm_dirty_log log, int is_dirty);
	252	int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm,
	253	struct kvm_dirty_log *log);
	254
1fe779f8 CO	255	int kvm_vm_ioctl_set_memory_region(struct kvm *kvm,
	256	struct
	257	kvm_userspace_memory_region *mem,
	258	int user_alloc);
	259	long kvm_arch_vm_ioctl(struct file *filp,
	260	unsigned int ioctl, unsigned long arg);
313a3dc7	261
d0752060 HB	262	int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu vcpu, struct kvm_fpu fpu);
	263	int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu vcpu, struct kvm_fpu fpu);
	264
8b006791 ZX	265	int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu,
	266	struct kvm_translation *tr);
	267
b6c7a5dc HB	268	int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu vcpu, struct kvm_regs regs);
	269	int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu vcpu, struct kvm_regs regs);
	270	int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu,
	271	struct kvm_sregs *sregs);
	272	int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
	273	struct kvm_sregs *sregs);
62d9f0db MT	274	int kvm_arch_vcpu_ioctl_get_mpstate(struct kvm_vcpu *vcpu,
	275	struct kvm_mp_state *mp_state);
	276	int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu,
	277	struct kvm_mp_state *mp_state);
d0bfb940 JK	278	int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
d0bfb940 JK	279	struct kvm_guest_debug *dbg);
b6c7a5dc HB	280	int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu vcpu, struct kvm_run kvm_run);
b6c7a5dc HB	281
f8c16bba ZX	282	int kvm_arch_init(void *opaque);
f8c16bba ZX	283	void kvm_arch_exit(void);
043405e1	284
e9b11c17 ZX	285	int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu);
	286	void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu);
	287
	288	void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu);
	289	void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu);
	290	void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu);
	291	struct kvm_vcpu kvm_arch_vcpu_create(struct kvm kvm, unsigned int id);
26e5215f	292	int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu);
d40ccc62	293	void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu);
e9b11c17 ZX	294
	295	int kvm_arch_vcpu_reset(struct kvm_vcpu *vcpu);
	296	void kvm_arch_hardware_enable(void *garbage);
	297	void kvm_arch_hardware_disable(void *garbage);
	298	int kvm_arch_hardware_setup(void);
	299	void kvm_arch_hardware_unsetup(void);
	300	void kvm_arch_check_processor_compat(void *rtn);
1d737c8a	301	int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu);
78646121	302	int kvm_arch_interrupt_allowed(struct kvm_vcpu *vcpu);
e9b11c17	303
d19a9cd2 ZX	304	void kvm_free_physmem(struct kvm *kvm);
	305
	306	struct kvm *kvm_arch_create_vm(void);
	307	void kvm_arch_destroy_vm(struct kvm *kvm);
8a98f664	308	void kvm_free_all_assigned_devices(struct kvm *kvm);
ad8ba2cd	309	void kvm_arch_sync_events(struct kvm *kvm);
e9b11c17	310
682c59a3 ZX	311	int kvm_cpu_get_interrupt(struct kvm_vcpu *v);
682c59a3 ZX	312	int kvm_cpu_has_interrupt(struct kvm_vcpu *v);
3d80840d	313	int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu);
5736199a	314	void kvm_vcpu_kick(struct kvm_vcpu *vcpu);
682c59a3	315
c77fb9dc XZ	316	int kvm_is_mmio_pfn(pfn_t pfn);
c77fb9dc XZ	317
62c476c7 BAY	318	struct kvm_irq_ack_notifier {
	319	struct hlist_node link;
	320	unsigned gsi;
	321	void (irq_acked)(struct kvm_irq_ack_notifier kian);
	322	};
	323
2350bd1f	324	#define KVM_ASSIGNED_MSIX_PENDING 0x1
c1e01514 SY	325	struct kvm_guest_msix_entry {
	326	u32 vector;
	327	u16 entry;
	328	u16 flags;
	329	};
	330
62c476c7 BAY	331	struct kvm_assigned_dev_kernel {
	332	struct kvm_irq_ack_notifier ack_notifier;
	333	struct work_struct interrupt_work;
	334	struct list_head list;
	335	int assigned_dev_id;
	336	int host_busnr;
	337	int host_devfn;
c1e01514	338	unsigned int entries_nr;
62c476c7	339	int host_irq;
defaf158	340	bool host_irq_disabled;
c1e01514	341	struct msix_entry *host_msix_entries;
62c476c7	342	int guest_irq;
c1e01514	343	struct kvm_guest_msix_entry *guest_msix_entries;
4f906c19	344	unsigned long irq_requested_type;
5550af4d	345	int irq_source_id;
b653574a	346	int flags;
62c476c7 BAY	347	struct pci_dev *dev;
62c476c7 BAY	348	struct kvm *kvm;
547de29e	349	spinlock_t assigned_dev_lock;
62c476c7	350	};
75858a84 AK	351
	352	struct kvm_irq_mask_notifier {
	353	void (func)(struct kvm_irq_mask_notifier kimn, bool masked);
	354	int irq;
	355	struct hlist_node link;
	356	};
	357
	358	void kvm_register_irq_mask_notifier(struct kvm *kvm, int irq,
	359	struct kvm_irq_mask_notifier *kimn);
	360	void kvm_unregister_irq_mask_notifier(struct kvm *kvm, int irq,
	361	struct kvm_irq_mask_notifier *kimn);
	362	void kvm_fire_mask_notifiers(struct kvm *kvm, int irq, bool mask);
	363
4925663a	364	int kvm_set_irq(struct kvm *kvm, int irq_source_id, int irq, int level);
44882eed	365	void kvm_notify_acked_irq(struct kvm *kvm, unsigned irqchip, unsigned pin);
3de42dc0 XZ	366	void kvm_register_irq_ack_notifier(struct kvm *kvm,
3de42dc0 XZ	367	struct kvm_irq_ack_notifier *kian);
e19e30ef	368	void kvm_unregister_irq_ack_notifier(struct kvm_irq_ack_notifier *kian);
5550af4d SY	369	int kvm_request_irq_source_id(struct kvm *kvm);
5550af4d SY	370	void kvm_free_irq_source_id(struct kvm *kvm, int irq_source_id);
62c476c7	371
522c68c4 SY	372	/* For vcpu->arch.iommu_flags */
	373	#define KVM_IOMMU_CACHE_COHERENCY 0x1
	374
19de40a8	375	#ifdef CONFIG_IOMMU_API
62c476c7 BAY	376	int kvm_iommu_map_pages(struct kvm *kvm, gfn_t base_gfn,
62c476c7 BAY	377	unsigned long npages);
260782bc	378	int kvm_iommu_map_guest(struct kvm *kvm);
62c476c7	379	int kvm_iommu_unmap_guest(struct kvm *kvm);
260782bc WH	380	int kvm_assign_device(struct kvm *kvm,
260782bc WH	381	struct kvm_assigned_dev_kernel *assigned_dev);
0a920356 WH	382	int kvm_deassign_device(struct kvm *kvm,
0a920356 WH	383	struct kvm_assigned_dev_kernel *assigned_dev);
19de40a8	384	#else /* CONFIG_IOMMU_API */
62c476c7 BAY	385	static inline int kvm_iommu_map_pages(struct kvm *kvm,
	386	gfn_t base_gfn,
	387	unsigned long npages)
	388	{
	389	return 0;
	390	}
	391
260782bc	392	static inline int kvm_iommu_map_guest(struct kvm *kvm)
62c476c7 BAY	393	{
	394	return -ENODEV;
	395	}
	396
	397	static inline int kvm_iommu_unmap_guest(struct kvm *kvm)
	398	{
	399	return 0;
	400	}
260782bc WH	401
	402	static inline int kvm_assign_device(struct kvm *kvm,
	403	struct kvm_assigned_dev_kernel *assigned_dev)
	404	{
	405	return 0;
	406	}
0a920356 WH	407
	408	static inline int kvm_deassign_device(struct kvm *kvm,
	409	struct kvm_assigned_dev_kernel *assigned_dev)
	410	{
	411	return 0;
	412	}
19de40a8	413	#endif /* CONFIG_IOMMU_API */
62c476c7	414
d172fcd3 LV	415	static inline void kvm_guest_enter(void)
d172fcd3 LV	416	{
e56a7a28	417	account_system_vtime(current);
d172fcd3 LV	418	current->flags \|= PF_VCPU;
	419	}
	420
	421	static inline void kvm_guest_exit(void)
	422	{
e56a7a28	423	account_system_vtime(current);
d172fcd3 LV	424	current->flags &= ~PF_VCPU;
	425	}
	426
6aa8b732 AK	427	static inline int memslot_id(struct kvm kvm, struct kvm_memory_slot slot)
	428	{
	429	return slot - kvm->memslots;
	430	}
	431
1755fbcc AK	432	static inline gpa_t gfn_to_gpa(gfn_t gfn)
	433	{
	434	return (gpa_t)gfn << PAGE_SHIFT;
	435	}
6aa8b732	436
62c476c7 BAY	437	static inline hpa_t pfn_to_hpa(pfn_t pfn)
	438	{
	439	return (hpa_t)pfn << PAGE_SHIFT;
	440	}
	441
2f599714	442	static inline void kvm_migrate_timers(struct kvm_vcpu *vcpu)
2f52d58c AK	443	{
	444	set_bit(KVM_REQ_MIGRATE_TIMER, &vcpu->requests);
	445	}
	446
ba1389b7 AK	447	enum kvm_stat_kind {
	448	KVM_STAT_VM,
	449	KVM_STAT_VCPU,
	450	};
	451
417bc304 HB	452	struct kvm_stats_debugfs_item {
	453	const char *name;
	454	int offset;
ba1389b7	455	enum kvm_stat_kind kind;
417bc304 HB	456	struct dentry *dentry;
	457	};
	458	extern struct kvm_stats_debugfs_item debugfs_entries[];
76f7c879	459	extern struct dentry *kvm_debugfs_dir;
d4c9ff2d	460
d98e6346 HB	461	#define KVMTRACE_5D(evt, vcpu, d1, d2, d3, d4, d5, name) \
	462	trace_mark(kvm_trace_##name, "%u %p %u %u %u %u %u %u", KVM_TRC_##evt, \
	463	vcpu, 5, d1, d2, d3, d4, d5)
	464	#define KVMTRACE_4D(evt, vcpu, d1, d2, d3, d4, name) \
	465	trace_mark(kvm_trace_##name, "%u %p %u %u %u %u %u %u", KVM_TRC_##evt, \
	466	vcpu, 4, d1, d2, d3, d4, 0)
	467	#define KVMTRACE_3D(evt, vcpu, d1, d2, d3, name) \
	468	trace_mark(kvm_trace_##name, "%u %p %u %u %u %u %u %u", KVM_TRC_##evt, \
	469	vcpu, 3, d1, d2, d3, 0, 0)
	470	#define KVMTRACE_2D(evt, vcpu, d1, d2, name) \
	471	trace_mark(kvm_trace_##name, "%u %p %u %u %u %u %u %u", KVM_TRC_##evt, \
	472	vcpu, 2, d1, d2, 0, 0, 0)
	473	#define KVMTRACE_1D(evt, vcpu, d1, name) \
	474	trace_mark(kvm_trace_##name, "%u %p %u %u %u %u %u %u", KVM_TRC_##evt, \
	475	vcpu, 1, d1, 0, 0, 0, 0)
	476	#define KVMTRACE_0D(evt, vcpu, name) \
	477	trace_mark(kvm_trace_##name, "%u %p %u %u %u %u %u %u", KVM_TRC_##evt, \
	478	vcpu, 0, 0, 0, 0, 0, 0)
	479
d4c9ff2d FEL	480	#ifdef CONFIG_KVM_TRACE
	481	int kvm_trace_ioctl(unsigned int ioctl, unsigned long arg);
	482	void kvm_trace_cleanup(void);
	483	#else
	484	static inline
	485	int kvm_trace_ioctl(unsigned int ioctl, unsigned long arg)
	486	{
	487	return -EINVAL;
	488	}
	489	#define kvm_trace_cleanup() ((void)0)
	490	#endif
417bc304	491
e930bffe AA	492	#ifdef KVM_ARCH_WANT_MMU_NOTIFIER
	493	static inline int mmu_notifier_retry(struct kvm_vcpu *vcpu, unsigned long mmu_seq)
	494	{
	495	if (unlikely(vcpu->kvm->mmu_notifier_count))
	496	return 1;
	497	/*
	498	* Both reads happen under the mmu_lock and both values are
	499	* modified under mmu_lock, so there's no need of smb_rmb()
	500	* here in between, otherwise mmu_notifier_count should be
	501	* read before mmu_notifier_seq, see
	502	* mmu_notifier_invalidate_range_end write side.
	503	*/
	504	if (vcpu->kvm->mmu_notifier_seq != mmu_seq)
	505	return 1;
	506	return 0;
	507	}
	508	#endif
	509
399ec807 AK	510	#ifdef CONFIG_HAVE_KVM_IRQCHIP
	511
	512	#define KVM_MAX_IRQ_ROUTES 1024
	513
	514	int kvm_setup_default_irq_routing(struct kvm *kvm);
	515	int kvm_set_irq_routing(struct kvm *kvm,
	516	const struct kvm_irq_routing_entry *entries,
	517	unsigned nr,
	518	unsigned flags);
	519	void kvm_free_irq_routing(struct kvm *kvm);
	520
	521	#else
	522
	523	static inline void kvm_free_irq_routing(struct kvm *kvm) {}
	524
	525	#endif
	526
6aa8b732	527	#endif