[GitHub/mt8127/android_kernel_alcatel_ttab.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/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;
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);
int kvm_io_bus_write(struct kvm_io_bus *bus, gpa_t addr, int len,
		     const void *val);
int kvm_io_bus_read(struct kvm_io_bus *bus, gpa_t addr, int len,
		    void *val);
int __kvm_io_bus_register_dev(struct kvm_io_bus *bus,
			       struct kvm_io_device *dev);
int kvm_io_bus_register_dev(struct kvm *kvm, struct kvm_io_bus *bus,
			    struct kvm_io_device *dev);
void __kvm_io_bus_unregister_dev(struct kvm_io_bus *bus,
				 struct kvm_io_device *dev);
void kvm_io_bus_unregister_dev(struct kvm *kvm, 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[KVM_NR_PAGE_SIZES - 1];
	unsigned long userspace_addr;
	int user_alloc;
};

struct kvm_kernel_irq_routing_entry {
	u32 gsi;
	u32 type;
	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 {
	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];
#ifdef CONFIG_KVM_APIC_ARCHITECTURE
	u32 bsp_vcpu_id;
	struct kvm_vcpu *bsp_vcpu;
#endif
	struct kvm_vcpu *vcpus[KVM_MAX_VCPUS];
	atomic_t online_vcpus;
	struct list_head vm_list;
	struct mutex lock;
	struct kvm_io_bus mmio_bus;
	struct kvm_io_bus pio_bus;
#ifdef CONFIG_HAVE_KVM_EVENTFD
	struct {
		spinlock_t        lock;
		struct list_head  items;
	} irqfds;
	struct list_head ioeventfds;
#endif
	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

	struct mutex irq_lock;
#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)

static inline struct kvm_vcpu *kvm_get_vcpu(struct kvm *kvm, int i)
{
	smp_rmb();
	return kvm->vcpus[i];
}

#define kvm_for_each_vcpu(idx, vcpup, kvm) \
	for (idx = 0, vcpup = kvm_get_vcpu(kvm, idx); \
	     idx < atomic_read(&kvm->online_vcpus) && vcpup; \
	     vcpup = kvm_get_vcpu(kvm, ++idx))

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_disable_largepages(void);
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);

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);

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_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 *kvm,
				   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;

#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

#ifdef CONFIG_HAVE_KVM_EVENTFD

void kvm_eventfd_init(struct kvm *kvm);
int kvm_irqfd(struct kvm *kvm, int fd, int gsi, int flags);
void kvm_irqfd_release(struct kvm *kvm);
int kvm_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args);

#else

static inline void kvm_eventfd_init(struct kvm *kvm) {}
static inline int kvm_irqfd(struct kvm *kvm, int fd, int gsi, int flags)
{
	return -EINVAL;
}

static inline void kvm_irqfd_release(struct kvm *kvm) {}
static inline int kvm_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args)
{
	return -ENOSYS;
}

#endif /* CONFIG_HAVE_KVM_EVENTFD */

#ifdef CONFIG_KVM_APIC_ARCHITECTURE
static inline bool kvm_vcpu_is_bsp(struct kvm_vcpu *vcpu)
{
	return vcpu->kvm->bsp_vcpu_id == vcpu->vcpu_id;
}
#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>
0937c48d	18	#include <linux/msi.h>
e8edc6e0	19	#include <asm/signal.h>
6aa8b732	20
6aa8b732	21	#include <linux/kvm.h>
102d8325	22	#include <linux/kvm_para.h>
6aa8b732	23
edf88417	24	#include <linux/kvm_types.h>
d77a39d9	25
edf88417	26	#include <asm/kvm_host.h>
d657a98e	27
d9e368d6 AK	28	/*
	29	* vcpu->requests bit members
	30	*/
3176bc3e	31	#define KVM_REQ_TLB_FLUSH 0
2f52d58c	32	#define KVM_REQ_MIGRATE_TIMER 1
b209749f	33	#define KVM_REQ_REPORT_TPR_ACCESS 2
2e53d63a	34	#define KVM_REQ_MMU_RELOAD 3
71c4dfaf	35	#define KVM_REQ_TRIPLE_FAULT 4
06e05645	36	#define KVM_REQ_PENDING_TIMER 5
d7690175	37	#define KVM_REQ_UNHALT 6
4731d4c7	38	#define KVM_REQ_MMU_SYNC 7
c8076604	39	#define KVM_REQ_KVMCLOCK_UPDATE 8
32f88400	40	#define KVM_REQ_KICK 9
6aa8b732	41
5550af4d SY	42	#define KVM_USERSPACE_IRQ_SOURCE_ID 0
5550af4d SY	43
6c474694	44	struct kvm;
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);
bda9020e MT	62	int kvm_io_bus_write(struct kvm_io_bus *bus, gpa_t addr, int len,
	63	const void *val);
	64	int kvm_io_bus_read(struct kvm_io_bus *bus, gpa_t addr, int len,
	65	void *val);
090b7aff GH	66	int __kvm_io_bus_register_dev(struct kvm_io_bus *bus,
	67	struct kvm_io_device *dev);
	68	int kvm_io_bus_register_dev(struct kvm kvm, struct kvm_io_bus bus,
	69	struct kvm_io_device *dev);
	70	void __kvm_io_bus_unregister_dev(struct kvm_io_bus *bus,
	71	struct kvm_io_device *dev);
	72	void kvm_io_bus_unregister_dev(struct kvm kvm, struct kvm_io_bus bus,
6c474694	73	struct kvm_io_device *dev);
2eeb2e94	74
d17fbbf7 ZX	75	struct kvm_vcpu {
d17fbbf7 ZX	76	struct kvm *kvm;
31bb117e	77	#ifdef CONFIG_PREEMPT_NOTIFIERS
d17fbbf7	78	struct preempt_notifier preempt_notifier;
31bb117e	79	#endif
d17fbbf7 ZX	80	int vcpu_id;
	81	struct mutex mutex;
	82	int cpu;
	83	struct kvm_run *run;
d17fbbf7	84	unsigned long requests;
d0bfb940	85	unsigned long guest_debug;
d17fbbf7 ZX	86	int fpu_active;
	87	int guest_fpu_loaded;
	88	wait_queue_head_t wq;
	89	int sigset_active;
	90	sigset_t sigset;
	91	struct kvm_vcpu_stat stat;
	92
34c16eec	93	#ifdef CONFIG_HAS_IOMEM
d17fbbf7 ZX	94	int mmio_needed;
	95	int mmio_read_completed;
	96	int mmio_is_write;
	97	int mmio_size;
	98	unsigned char mmio_data[8];
6aa8b732	99	gpa_t mmio_phys_addr;
34c16eec	100	#endif
1165f5fe	101
d657a98e ZX	102	struct kvm_vcpu_arch arch;
	103	};
	104
6aa8b732 AK	105	struct kvm_memory_slot {
	106	gfn_t base_gfn;
	107	unsigned long npages;
	108	unsigned long flags;
290fc38d	109	unsigned long *rmap;
6aa8b732	110	unsigned long *dirty_bitmap;
05da4558 MT	111	struct {
	112	unsigned long rmap_pde;
	113	int write_count;
ec04b260	114	} *lpage_info[KVM_NR_PAGE_SIZES - 1];
8a7ae055	115	unsigned long userspace_addr;
80b14b5b	116	int user_alloc;
6aa8b732 AK	117	};
6aa8b732 AK	118
399ec807 AK	119	struct kvm_kernel_irq_routing_entry {
399ec807 AK	120	u32 gsi;
5116d8f6	121	u32 type;
4925663a	122	int (set)(struct kvm_kernel_irq_routing_entry e,
399ec807 AK	123	struct kvm *kvm, int level);
	124	union {
	125	struct {
	126	unsigned irqchip;
	127	unsigned pin;
	128	} irqchip;
79950e10	129	struct msi_msg msi;
399ec807 AK	130	};
	131	struct list_head link;
	132	};
	133
6aa8b732	134	struct kvm {
aaee2c94	135	spinlock_t mmu_lock;
84261923	136	spinlock_t requests_lock;
72dc67a6	137	struct rw_semaphore slots_lock;
6d4e4c4f	138	struct mm_struct mm; / userspace tied to this vm */
6aa8b732	139	int nmemslots;
e0d62c7f IE	140	struct kvm_memory_slot memslots[KVM_MEMORY_SLOTS +
e0d62c7f IE	141	KVM_PRIVATE_MEM_SLOTS];
73880c80 GN	142	#ifdef CONFIG_KVM_APIC_ARCHITECTURE
73880c80 GN	143	u32 bsp_vcpu_id;
c5af89b6	144	struct kvm_vcpu *bsp_vcpu;
73880c80	145	#endif
fb3f0f51	146	struct kvm_vcpu *vcpus[KVM_MAX_VCPUS];
73880c80	147	atomic_t online_vcpus;
133de902	148	struct list_head vm_list;
60eead79	149	struct mutex lock;
2eeb2e94	150	struct kvm_io_bus mmio_bus;
74906345	151	struct kvm_io_bus pio_bus;
721eecbf GH	152	#ifdef CONFIG_HAVE_KVM_EVENTFD
	153	struct {
	154	spinlock_t lock;
	155	struct list_head items;
	156	} irqfds;
d34e6b17	157	struct list_head ioeventfds;
721eecbf	158	#endif
ba1389b7	159	struct kvm_vm_stat stat;
d69fb81f	160	struct kvm_arch arch;
d39f13b0	161	atomic_t users_count;
5f94c174 LV	162	#ifdef KVM_COALESCED_MMIO_PAGE_OFFSET
	163	struct kvm_coalesced_mmio_dev *coalesced_mmio_dev;
	164	struct kvm_coalesced_mmio_ring *coalesced_mmio_ring;
	165	#endif
e930bffe	166
60eead79	167	struct mutex irq_lock;
75858a84	168	#ifdef CONFIG_HAVE_KVM_IRQCHIP
399ec807	169	struct list_head irq_routing; /* of kvm_kernel_irq_routing_entry */
75858a84 AK	170	struct hlist_head mask_notifier_list;
	171	#endif
	172
e930bffe AA	173	#ifdef KVM_ARCH_WANT_MMU_NOTIFIER
	174	struct mmu_notifier mmu_notifier;
	175	unsigned long mmu_notifier_seq;
	176	long mmu_notifier_count;
	177	#endif
6aa8b732 AK	178	};
6aa8b732 AK	179
f0242478 RR	180	/* The guest did something we don't support. */
	181	#define pr_unimpl(vcpu, fmt, ...) \
	182	do { \
	183	if (printk_ratelimit()) \
	184	printk(KERN_ERR "kvm: %i: cpu%i " fmt, \
	185	current->tgid, (vcpu)->vcpu_id , ## __VA_ARGS__); \
d77c26fc	186	} while (0)
f0242478	187
6aa8b732 AK	188	#define kvm_printf(kvm, fmt ...) printk(KERN_DEBUG fmt)
	189	#define vcpu_printf(vcpu, fmt...) kvm_printf(vcpu->kvm, fmt)
	190
988a2cae GN	191	static inline struct kvm_vcpu kvm_get_vcpu(struct kvm kvm, int i)
	192	{
	193	smp_rmb();
	194	return kvm->vcpus[i];
	195	}
	196
	197	#define kvm_for_each_vcpu(idx, vcpup, kvm) \
	198	for (idx = 0, vcpup = kvm_get_vcpu(kvm, idx); \
	199	idx < atomic_read(&kvm->online_vcpus) && vcpup; \
	200	vcpup = kvm_get_vcpu(kvm, ++idx))
	201
fb3f0f51 RR	202	int kvm_vcpu_init(struct kvm_vcpu vcpu, struct kvm kvm, unsigned id);
	203	void kvm_vcpu_uninit(struct kvm_vcpu *vcpu);
	204
313a3dc7 CO	205	void vcpu_load(struct kvm_vcpu *vcpu);
	206	void vcpu_put(struct kvm_vcpu *vcpu);
	207
f8c16bba	208	int kvm_init(void *opaque, unsigned int vcpu_size,
c16f862d	209	struct module *module);
cb498ea2	210	void kvm_exit(void);
6aa8b732	211
d39f13b0 IE	212	void kvm_get_kvm(struct kvm *kvm);
	213	void kvm_put_kvm(struct kvm *kvm);
	214
6aa8b732 AK	215	#define HPA_MSB ((sizeof(hpa_t) * 8) - 1)
	216	#define HPA_ERR_MASK ((hpa_t)1 << HPA_MSB)
	217	static inline int is_error_hpa(hpa_t hpa) { return hpa >> HPA_MSB; }
039576c0	218	struct page gva_to_page(struct kvm_vcpu vcpu, gva_t gva);
6aa8b732	219
cea7bb21	220	extern struct page *bad_page;
35149e21	221	extern pfn_t bad_pfn;
6aa8b732	222
cea7bb21	223	int is_error_page(struct page *page);
35149e21	224	int is_error_pfn(pfn_t pfn);
f9d46eb0	225	int kvm_is_error_hva(unsigned long addr);
210c7c4d IE	226	int kvm_set_memory_region(struct kvm *kvm,
	227	struct kvm_userspace_memory_region *mem,
	228	int user_alloc);
f78e0e2e SY	229	int __kvm_set_memory_region(struct kvm *kvm,
	230	struct kvm_userspace_memory_region *mem,
	231	int user_alloc);
0de10343 ZX	232	int kvm_arch_set_memory_region(struct kvm *kvm,
	233	struct kvm_userspace_memory_region *mem,
	234	struct kvm_memory_slot old,
	235	int user_alloc);
54dee993	236	void kvm_disable_largepages(void);
34d4cb8f	237	void kvm_arch_flush_shadow(struct kvm *kvm);
290fc38d	238	gfn_t unalias_gfn(struct kvm *kvm, gfn_t gfn);
954bbbc2	239	struct page gfn_to_page(struct kvm kvm, gfn_t gfn);
05da4558	240	unsigned long gfn_to_hva(struct kvm *kvm, gfn_t gfn);
b4231d61 IE	241	void kvm_release_page_clean(struct page *page);
b4231d61 IE	242	void kvm_release_page_dirty(struct page *page);
35149e21 AL	243	void kvm_set_page_dirty(struct page *page);
	244	void kvm_set_page_accessed(struct page *page);
	245
	246	pfn_t gfn_to_pfn(struct kvm *kvm, gfn_t gfn);
	247	void kvm_release_pfn_dirty(pfn_t);
	248	void kvm_release_pfn_clean(pfn_t pfn);
	249	void kvm_set_pfn_dirty(pfn_t pfn);
	250	void kvm_set_pfn_accessed(pfn_t pfn);
	251	void kvm_get_pfn(pfn_t pfn);
	252
195aefde IE	253	int kvm_read_guest_page(struct kvm kvm, gfn_t gfn, void data, int offset,
195aefde IE	254	int len);
7ec54588 MT	255	int kvm_read_guest_atomic(struct kvm kvm, gpa_t gpa, void data,
7ec54588 MT	256	unsigned long len);
195aefde IE	257	int kvm_read_guest(struct kvm kvm, gpa_t gpa, void data, unsigned long len);
	258	int kvm_write_guest_page(struct kvm kvm, gfn_t gfn, const void data,
	259	int offset, int len);
	260	int kvm_write_guest(struct kvm kvm, gpa_t gpa, const void data,
	261	unsigned long len);
	262	int kvm_clear_guest_page(struct kvm *kvm, gfn_t gfn, int offset, int len);
	263	int kvm_clear_guest(struct kvm *kvm, gpa_t gpa, unsigned long len);
6aa8b732	264	struct kvm_memory_slot gfn_to_memslot(struct kvm kvm, gfn_t gfn);
e0d62c7f	265	int kvm_is_visible_gfn(struct kvm *kvm, gfn_t gfn);
6aa8b732 AK	266	void mark_page_dirty(struct kvm *kvm, gfn_t gfn);
6aa8b732 AK	267
8776e519	268	void kvm_vcpu_block(struct kvm_vcpu *vcpu);
6aa8b732	269	void kvm_resched(struct kvm_vcpu *vcpu);
7702fd1f AK	270	void kvm_load_guest_fpu(struct kvm_vcpu *vcpu);
7702fd1f AK	271	void kvm_put_guest_fpu(struct kvm_vcpu *vcpu);
d9e368d6	272	void kvm_flush_remote_tlbs(struct kvm *kvm);
2e53d63a	273	void kvm_reload_remote_mmus(struct kvm *kvm);
6aa8b732	274
043405e1 CO	275	long kvm_arch_dev_ioctl(struct file *filp,
043405e1 CO	276	unsigned int ioctl, unsigned long arg);
313a3dc7 CO	277	long kvm_arch_vcpu_ioctl(struct file *filp,
313a3dc7 CO	278	unsigned int ioctl, unsigned long arg);
018d00d2 ZX	279
	280	int kvm_dev_ioctl_check_extension(long ext);
	281
5bb064dc ZX	282	int kvm_get_dirty_log(struct kvm *kvm,
	283	struct kvm_dirty_log log, int is_dirty);
	284	int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm,
	285	struct kvm_dirty_log *log);
	286
1fe779f8 CO	287	int kvm_vm_ioctl_set_memory_region(struct kvm *kvm,
	288	struct
	289	kvm_userspace_memory_region *mem,
	290	int user_alloc);
	291	long kvm_arch_vm_ioctl(struct file *filp,
	292	unsigned int ioctl, unsigned long arg);
313a3dc7	293
d0752060 HB	294	int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu vcpu, struct kvm_fpu fpu);
	295	int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu vcpu, struct kvm_fpu fpu);
	296
8b006791 ZX	297	int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu,
	298	struct kvm_translation *tr);
	299
b6c7a5dc HB	300	int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu vcpu, struct kvm_regs regs);
	301	int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu vcpu, struct kvm_regs regs);
	302	int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu,
	303	struct kvm_sregs *sregs);
	304	int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
	305	struct kvm_sregs *sregs);
62d9f0db MT	306	int kvm_arch_vcpu_ioctl_get_mpstate(struct kvm_vcpu *vcpu,
	307	struct kvm_mp_state *mp_state);
	308	int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu,
	309	struct kvm_mp_state *mp_state);
d0bfb940 JK	310	int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
d0bfb940 JK	311	struct kvm_guest_debug *dbg);
b6c7a5dc HB	312	int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu vcpu, struct kvm_run kvm_run);
b6c7a5dc HB	313
f8c16bba ZX	314	int kvm_arch_init(void *opaque);
f8c16bba ZX	315	void kvm_arch_exit(void);
043405e1	316
e9b11c17 ZX	317	int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu);
	318	void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu);
	319
	320	void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu);
	321	void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu);
	322	void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu);
	323	struct kvm_vcpu kvm_arch_vcpu_create(struct kvm kvm, unsigned int id);
26e5215f	324	int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu);
d40ccc62	325	void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu);
e9b11c17 ZX	326
	327	int kvm_arch_vcpu_reset(struct kvm_vcpu *vcpu);
	328	void kvm_arch_hardware_enable(void *garbage);
	329	void kvm_arch_hardware_disable(void *garbage);
	330	int kvm_arch_hardware_setup(void);
	331	void kvm_arch_hardware_unsetup(void);
	332	void kvm_arch_check_processor_compat(void *rtn);
1d737c8a	333	int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu);
e9b11c17	334
d19a9cd2 ZX	335	void kvm_free_physmem(struct kvm *kvm);
	336
	337	struct kvm *kvm_arch_create_vm(void);
	338	void kvm_arch_destroy_vm(struct kvm *kvm);
8a98f664	339	void kvm_free_all_assigned_devices(struct kvm *kvm);
ad8ba2cd	340	void kvm_arch_sync_events(struct kvm *kvm);
e9b11c17	341
3d80840d	342	int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu);
5736199a	343	void kvm_vcpu_kick(struct kvm_vcpu *vcpu);
682c59a3	344
c77fb9dc XZ	345	int kvm_is_mmio_pfn(pfn_t pfn);
c77fb9dc XZ	346
62c476c7 BAY	347	struct kvm_irq_ack_notifier {
	348	struct hlist_node link;
	349	unsigned gsi;
	350	void (irq_acked)(struct kvm_irq_ack_notifier kian);
	351	};
	352
2350bd1f	353	#define KVM_ASSIGNED_MSIX_PENDING 0x1
c1e01514 SY	354	struct kvm_guest_msix_entry {
	355	u32 vector;
	356	u16 entry;
	357	u16 flags;
	358	};
	359
62c476c7 BAY	360	struct kvm_assigned_dev_kernel {
	361	struct kvm_irq_ack_notifier ack_notifier;
	362	struct work_struct interrupt_work;
	363	struct list_head list;
	364	int assigned_dev_id;
	365	int host_busnr;
	366	int host_devfn;
c1e01514	367	unsigned int entries_nr;
62c476c7	368	int host_irq;
defaf158	369	bool host_irq_disabled;
c1e01514	370	struct msix_entry *host_msix_entries;
62c476c7	371	int guest_irq;
c1e01514	372	struct kvm_guest_msix_entry *guest_msix_entries;
4f906c19	373	unsigned long irq_requested_type;
5550af4d	374	int irq_source_id;
b653574a	375	int flags;
62c476c7 BAY	376	struct pci_dev *dev;
62c476c7 BAY	377	struct kvm *kvm;
547de29e	378	spinlock_t assigned_dev_lock;
62c476c7	379	};
75858a84 AK	380
	381	struct kvm_irq_mask_notifier {
	382	void (func)(struct kvm_irq_mask_notifier kimn, bool masked);
	383	int irq;
	384	struct hlist_node link;
	385	};
	386
	387	void kvm_register_irq_mask_notifier(struct kvm *kvm, int irq,
	388	struct kvm_irq_mask_notifier *kimn);
	389	void kvm_unregister_irq_mask_notifier(struct kvm *kvm, int irq,
	390	struct kvm_irq_mask_notifier *kimn);
	391	void kvm_fire_mask_notifiers(struct kvm *kvm, int irq, bool mask);
	392
4925663a	393	int kvm_set_irq(struct kvm *kvm, int irq_source_id, int irq, int level);
44882eed	394	void kvm_notify_acked_irq(struct kvm *kvm, unsigned irqchip, unsigned pin);
3de42dc0 XZ	395	void kvm_register_irq_ack_notifier(struct kvm *kvm,
3de42dc0 XZ	396	struct kvm_irq_ack_notifier *kian);
fa40a821 MT	397	void kvm_unregister_irq_ack_notifier(struct kvm *kvm,
fa40a821 MT	398	struct kvm_irq_ack_notifier *kian);
5550af4d SY	399	int kvm_request_irq_source_id(struct kvm *kvm);
5550af4d SY	400	void kvm_free_irq_source_id(struct kvm *kvm, int irq_source_id);
62c476c7	401
522c68c4 SY	402	/* For vcpu->arch.iommu_flags */
	403	#define KVM_IOMMU_CACHE_COHERENCY 0x1
	404
19de40a8	405	#ifdef CONFIG_IOMMU_API
62c476c7 BAY	406	int kvm_iommu_map_pages(struct kvm *kvm, gfn_t base_gfn,
62c476c7 BAY	407	unsigned long npages);
260782bc	408	int kvm_iommu_map_guest(struct kvm *kvm);
62c476c7	409	int kvm_iommu_unmap_guest(struct kvm *kvm);
260782bc WH	410	int kvm_assign_device(struct kvm *kvm,
260782bc WH	411	struct kvm_assigned_dev_kernel *assigned_dev);
0a920356 WH	412	int kvm_deassign_device(struct kvm *kvm,
0a920356 WH	413	struct kvm_assigned_dev_kernel *assigned_dev);
19de40a8	414	#else /* CONFIG_IOMMU_API */
62c476c7 BAY	415	static inline int kvm_iommu_map_pages(struct kvm *kvm,
	416	gfn_t base_gfn,
	417	unsigned long npages)
	418	{
	419	return 0;
	420	}
	421
260782bc	422	static inline int kvm_iommu_map_guest(struct kvm *kvm)
62c476c7 BAY	423	{
	424	return -ENODEV;
	425	}
	426
	427	static inline int kvm_iommu_unmap_guest(struct kvm *kvm)
	428	{
	429	return 0;
	430	}
260782bc WH	431
	432	static inline int kvm_assign_device(struct kvm *kvm,
	433	struct kvm_assigned_dev_kernel *assigned_dev)
	434	{
	435	return 0;
	436	}
0a920356 WH	437
	438	static inline int kvm_deassign_device(struct kvm *kvm,
	439	struct kvm_assigned_dev_kernel *assigned_dev)
	440	{
	441	return 0;
	442	}
19de40a8	443	#endif /* CONFIG_IOMMU_API */
62c476c7	444
d172fcd3 LV	445	static inline void kvm_guest_enter(void)
d172fcd3 LV	446	{
e56a7a28	447	account_system_vtime(current);
d172fcd3 LV	448	current->flags \|= PF_VCPU;
	449	}
	450
	451	static inline void kvm_guest_exit(void)
	452	{
e56a7a28	453	account_system_vtime(current);
d172fcd3 LV	454	current->flags &= ~PF_VCPU;
	455	}
	456
6aa8b732 AK	457	static inline int memslot_id(struct kvm kvm, struct kvm_memory_slot slot)
	458	{
	459	return slot - kvm->memslots;
	460	}
	461
1755fbcc AK	462	static inline gpa_t gfn_to_gpa(gfn_t gfn)
	463	{
	464	return (gpa_t)gfn << PAGE_SHIFT;
	465	}
6aa8b732	466
62c476c7 BAY	467	static inline hpa_t pfn_to_hpa(pfn_t pfn)
	468	{
	469	return (hpa_t)pfn << PAGE_SHIFT;
	470	}
	471
2f599714	472	static inline void kvm_migrate_timers(struct kvm_vcpu *vcpu)
2f52d58c AK	473	{
	474	set_bit(KVM_REQ_MIGRATE_TIMER, &vcpu->requests);
	475	}
	476
ba1389b7 AK	477	enum kvm_stat_kind {
	478	KVM_STAT_VM,
	479	KVM_STAT_VCPU,
	480	};
	481
417bc304 HB	482	struct kvm_stats_debugfs_item {
	483	const char *name;
	484	int offset;
ba1389b7	485	enum kvm_stat_kind kind;
417bc304 HB	486	struct dentry *dentry;
	487	};
	488	extern struct kvm_stats_debugfs_item debugfs_entries[];
76f7c879	489	extern struct dentry *kvm_debugfs_dir;
d4c9ff2d	490
e930bffe AA	491	#ifdef KVM_ARCH_WANT_MMU_NOTIFIER
	492	static inline int mmu_notifier_retry(struct kvm_vcpu *vcpu, unsigned long mmu_seq)
	493	{
	494	if (unlikely(vcpu->kvm->mmu_notifier_count))
	495	return 1;
	496	/*
	497	* Both reads happen under the mmu_lock and both values are
	498	* modified under mmu_lock, so there's no need of smb_rmb()
	499	* here in between, otherwise mmu_notifier_count should be
	500	* read before mmu_notifier_seq, see
	501	* mmu_notifier_invalidate_range_end write side.
	502	*/
	503	if (vcpu->kvm->mmu_notifier_seq != mmu_seq)
	504	return 1;
	505	return 0;
	506	}
	507	#endif
	508
399ec807 AK	509	#ifdef CONFIG_HAVE_KVM_IRQCHIP
	510
	511	#define KVM_MAX_IRQ_ROUTES 1024
	512
	513	int kvm_setup_default_irq_routing(struct kvm *kvm);
	514	int kvm_set_irq_routing(struct kvm *kvm,
	515	const struct kvm_irq_routing_entry *entries,
	516	unsigned nr,
	517	unsigned flags);
	518	void kvm_free_irq_routing(struct kvm *kvm);
	519
	520	#else
	521
	522	static inline void kvm_free_irq_routing(struct kvm *kvm) {}
	523
	524	#endif
	525
721eecbf GH	526	#ifdef CONFIG_HAVE_KVM_EVENTFD
721eecbf GH	527
d34e6b17	528	void kvm_eventfd_init(struct kvm *kvm);
721eecbf GH	529	int kvm_irqfd(struct kvm *kvm, int fd, int gsi, int flags);
721eecbf GH	530	void kvm_irqfd_release(struct kvm *kvm);
d34e6b17	531	int kvm_ioeventfd(struct kvm kvm, struct kvm_ioeventfd args);
721eecbf GH	532
	533	#else
	534
d34e6b17	535	static inline void kvm_eventfd_init(struct kvm *kvm) {}
721eecbf GH	536	static inline int kvm_irqfd(struct kvm *kvm, int fd, int gsi, int flags)
	537	{
	538	return -EINVAL;
	539	}
	540
	541	static inline void kvm_irqfd_release(struct kvm *kvm) {}
d34e6b17 GH	542	static inline int kvm_ioeventfd(struct kvm kvm, struct kvm_ioeventfd args)
	543	{
	544	return -ENOSYS;
	545	}
721eecbf GH	546
	547	#endif /* CONFIG_HAVE_KVM_EVENTFD */
	548
73880c80	549	#ifdef CONFIG_KVM_APIC_ARCHITECTURE
c5af89b6 GN	550	static inline bool kvm_vcpu_is_bsp(struct kvm_vcpu *vcpu)
c5af89b6 GN	551	{
d3efc8ef	552	return vcpu->kvm->bsp_vcpu_id == vcpu->vcpu_id;
c5af89b6	553	}
6aa8b732	554	#endif
73880c80	555	#endif