[mirror_ubuntu-artful-kernel.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 <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

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);
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;
	int guest_mode;
	unsigned long requests;
	struct kvm_guest_debug 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 {
	struct mutex lock; /* protects the vcpus array and APIC accesses */
	spinlock_t mmu_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 file *filp;
	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;
};

/* 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);

void decache_vcpus_on_cpu(int cpu);


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;

int is_error_page(struct page *page);
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);
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);
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);
void kvm_arch_destroy_vm(struct kvm *kvm);

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_debug_guest(struct kvm_vcpu *vcpu,
				    struct kvm_debug_guest *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);

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

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 void kvm_migrate_apic_timer(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[];

#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>
e8edc6e0	18	#include <asm/signal.h>
6aa8b732	19
6aa8b732	20	#include <linux/kvm.h>
102d8325	21	#include <linux/kvm_para.h>
6aa8b732	22
edf88417	23	#include <linux/kvm_types.h>
d77a39d9	24
edf88417	25	#include <asm/kvm_host.h>
d657a98e	26
d9e368d6 AK	27	/*
	28	* vcpu->requests bit members
	29	*/
3176bc3e	30	#define KVM_REQ_TLB_FLUSH 0
2f52d58c	31	#define KVM_REQ_MIGRATE_TIMER 1
b209749f	32	#define KVM_REQ_REPORT_TPR_ACCESS 2
2e53d63a	33	#define KVM_REQ_MMU_RELOAD 3
71c4dfaf	34	#define KVM_REQ_TRIPLE_FAULT 4
6aa8b732	35
6aa8b732	36	struct kvm_vcpu;
c16f862d	37	extern struct kmem_cache *kvm_vcpu_cache;
6aa8b732	38
2eeb2e94 GH	39	/*
	40	* It would be nice to use something smarter than a linear search, TBD...
	41	* Thankfully we dont expect many devices to register (famous last words :),
	42	* so until then it will suffice. At least its abstracted so we can change
	43	* in one place.
	44	*/
	45	struct kvm_io_bus {
	46	int dev_count;
	47	#define NR_IOBUS_DEVS 6
	48	struct kvm_io_device *devs[NR_IOBUS_DEVS];
	49	};
	50
	51	void kvm_io_bus_init(struct kvm_io_bus *bus);
	52	void kvm_io_bus_destroy(struct kvm_io_bus *bus);
	53	struct kvm_io_device kvm_io_bus_find_dev(struct kvm_io_bus bus, gpa_t addr);
	54	void kvm_io_bus_register_dev(struct kvm_io_bus *bus,
	55	struct kvm_io_device *dev);
	56
d17fbbf7 ZX	57	struct kvm_vcpu {
d17fbbf7 ZX	58	struct kvm *kvm;
31bb117e	59	#ifdef CONFIG_PREEMPT_NOTIFIERS
d17fbbf7	60	struct preempt_notifier preempt_notifier;
31bb117e	61	#endif
d17fbbf7 ZX	62	int vcpu_id;
	63	struct mutex mutex;
	64	int cpu;
	65	struct kvm_run *run;
	66	int guest_mode;
	67	unsigned long requests;
	68	struct kvm_guest_debug guest_debug;
	69	int fpu_active;
	70	int guest_fpu_loaded;
	71	wait_queue_head_t wq;
	72	int sigset_active;
	73	sigset_t sigset;
	74	struct kvm_vcpu_stat stat;
	75
34c16eec	76	#ifdef CONFIG_HAS_IOMEM
d17fbbf7 ZX	77	int mmio_needed;
	78	int mmio_read_completed;
	79	int mmio_is_write;
	80	int mmio_size;
	81	unsigned char mmio_data[8];
6aa8b732	82	gpa_t mmio_phys_addr;
34c16eec	83	#endif
1165f5fe	84
d657a98e ZX	85	struct kvm_vcpu_arch arch;
	86	};
	87
6aa8b732 AK	88	struct kvm_memory_slot {
	89	gfn_t base_gfn;
	90	unsigned long npages;
	91	unsigned long flags;
290fc38d	92	unsigned long *rmap;
6aa8b732	93	unsigned long *dirty_bitmap;
05da4558 MT	94	struct {
	95	unsigned long rmap_pde;
	96	int write_count;
	97	} *lpage_info;
8a7ae055	98	unsigned long userspace_addr;
80b14b5b	99	int user_alloc;
6aa8b732 AK	100	};
	101
	102	struct kvm {
aaee2c94 MT	103	struct mutex lock; /* protects the vcpus array and APIC accesses */
aaee2c94 MT	104	spinlock_t mmu_lock;
72dc67a6	105	struct rw_semaphore slots_lock;
6d4e4c4f	106	struct mm_struct mm; / userspace tied to this vm */
6aa8b732	107	int nmemslots;
e0d62c7f IE	108	struct kvm_memory_slot memslots[KVM_MEMORY_SLOTS +
e0d62c7f IE	109	KVM_PRIVATE_MEM_SLOTS];
fb3f0f51	110	struct kvm_vcpu *vcpus[KVM_MAX_VCPUS];
133de902	111	struct list_head vm_list;
bccf2150	112	struct file *filp;
2eeb2e94	113	struct kvm_io_bus mmio_bus;
74906345	114	struct kvm_io_bus pio_bus;
ba1389b7	115	struct kvm_vm_stat stat;
d69fb81f	116	struct kvm_arch arch;
d39f13b0	117	atomic_t users_count;
6aa8b732 AK	118	};
6aa8b732 AK	119
f0242478 RR	120	/* The guest did something we don't support. */
	121	#define pr_unimpl(vcpu, fmt, ...) \
	122	do { \
	123	if (printk_ratelimit()) \
	124	printk(KERN_ERR "kvm: %i: cpu%i " fmt, \
	125	current->tgid, (vcpu)->vcpu_id , ## __VA_ARGS__); \
d77c26fc	126	} while (0)
f0242478	127
6aa8b732 AK	128	#define kvm_printf(kvm, fmt ...) printk(KERN_DEBUG fmt)
	129	#define vcpu_printf(vcpu, fmt...) kvm_printf(vcpu->kvm, fmt)
	130
fb3f0f51 RR	131	int kvm_vcpu_init(struct kvm_vcpu vcpu, struct kvm kvm, unsigned id);
	132	void kvm_vcpu_uninit(struct kvm_vcpu *vcpu);
	133
313a3dc7 CO	134	void vcpu_load(struct kvm_vcpu *vcpu);
	135	void vcpu_put(struct kvm_vcpu *vcpu);
	136
e9b11c17 ZX	137	void decache_vcpus_on_cpu(int cpu);
e9b11c17 ZX	138
313a3dc7	139
f8c16bba	140	int kvm_init(void *opaque, unsigned int vcpu_size,
c16f862d	141	struct module *module);
cb498ea2	142	void kvm_exit(void);
6aa8b732	143
d39f13b0 IE	144	void kvm_get_kvm(struct kvm *kvm);
	145	void kvm_put_kvm(struct kvm *kvm);
	146
6aa8b732 AK	147	#define HPA_MSB ((sizeof(hpa_t) * 8) - 1)
	148	#define HPA_ERR_MASK ((hpa_t)1 << HPA_MSB)
	149	static inline int is_error_hpa(hpa_t hpa) { return hpa >> HPA_MSB; }
039576c0	150	struct page gva_to_page(struct kvm_vcpu vcpu, gva_t gva);
6aa8b732	151
cea7bb21	152	extern struct page *bad_page;
6aa8b732	153
cea7bb21	154	int is_error_page(struct page *page);
f9d46eb0	155	int kvm_is_error_hva(unsigned long addr);
210c7c4d IE	156	int kvm_set_memory_region(struct kvm *kvm,
	157	struct kvm_userspace_memory_region *mem,
	158	int user_alloc);
f78e0e2e SY	159	int __kvm_set_memory_region(struct kvm *kvm,
	160	struct kvm_userspace_memory_region *mem,
	161	int user_alloc);
0de10343 ZX	162	int kvm_arch_set_memory_region(struct kvm *kvm,
	163	struct kvm_userspace_memory_region *mem,
	164	struct kvm_memory_slot old,
	165	int user_alloc);
290fc38d	166	gfn_t unalias_gfn(struct kvm *kvm, gfn_t gfn);
954bbbc2	167	struct page gfn_to_page(struct kvm kvm, gfn_t gfn);
05da4558	168	unsigned long gfn_to_hva(struct kvm *kvm, gfn_t gfn);
b4231d61 IE	169	void kvm_release_page_clean(struct page *page);
b4231d61 IE	170	void kvm_release_page_dirty(struct page *page);
195aefde IE	171	int kvm_read_guest_page(struct kvm kvm, gfn_t gfn, void data, int offset,
195aefde IE	172	int len);
7ec54588 MT	173	int kvm_read_guest_atomic(struct kvm kvm, gpa_t gpa, void data,
7ec54588 MT	174	unsigned long len);
195aefde IE	175	int kvm_read_guest(struct kvm kvm, gpa_t gpa, void data, unsigned long len);
	176	int kvm_write_guest_page(struct kvm kvm, gfn_t gfn, const void data,
	177	int offset, int len);
	178	int kvm_write_guest(struct kvm kvm, gpa_t gpa, const void data,
	179	unsigned long len);
	180	int kvm_clear_guest_page(struct kvm *kvm, gfn_t gfn, int offset, int len);
	181	int kvm_clear_guest(struct kvm *kvm, gpa_t gpa, unsigned long len);
6aa8b732	182	struct kvm_memory_slot gfn_to_memslot(struct kvm kvm, gfn_t gfn);
e0d62c7f	183	int kvm_is_visible_gfn(struct kvm *kvm, gfn_t gfn);
6aa8b732 AK	184	void mark_page_dirty(struct kvm *kvm, gfn_t gfn);
6aa8b732 AK	185
8776e519	186	void kvm_vcpu_block(struct kvm_vcpu *vcpu);
6aa8b732	187	void kvm_resched(struct kvm_vcpu *vcpu);
7702fd1f AK	188	void kvm_load_guest_fpu(struct kvm_vcpu *vcpu);
7702fd1f AK	189	void kvm_put_guest_fpu(struct kvm_vcpu *vcpu);
d9e368d6	190	void kvm_flush_remote_tlbs(struct kvm *kvm);
2e53d63a	191	void kvm_reload_remote_mmus(struct kvm *kvm);
6aa8b732	192
043405e1 CO	193	long kvm_arch_dev_ioctl(struct file *filp,
043405e1 CO	194	unsigned int ioctl, unsigned long arg);
313a3dc7 CO	195	long kvm_arch_vcpu_ioctl(struct file *filp,
	196	unsigned int ioctl, unsigned long arg);
	197	void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu);
	198	void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu);
018d00d2 ZX	199
	200	int kvm_dev_ioctl_check_extension(long ext);
	201
5bb064dc ZX	202	int kvm_get_dirty_log(struct kvm *kvm,
	203	struct kvm_dirty_log log, int is_dirty);
	204	int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm,
	205	struct kvm_dirty_log *log);
	206
1fe779f8 CO	207	int kvm_vm_ioctl_set_memory_region(struct kvm *kvm,
	208	struct
	209	kvm_userspace_memory_region *mem,
	210	int user_alloc);
	211	long kvm_arch_vm_ioctl(struct file *filp,
	212	unsigned int ioctl, unsigned long arg);
	213	void kvm_arch_destroy_vm(struct kvm *kvm);
313a3dc7	214
d0752060 HB	215	int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu vcpu, struct kvm_fpu fpu);
	216	int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu vcpu, struct kvm_fpu fpu);
	217
8b006791 ZX	218	int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu,
	219	struct kvm_translation *tr);
	220
b6c7a5dc HB	221	int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu vcpu, struct kvm_regs regs);
	222	int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu vcpu, struct kvm_regs regs);
	223	int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu,
	224	struct kvm_sregs *sregs);
	225	int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
	226	struct kvm_sregs *sregs);
	227	int kvm_arch_vcpu_ioctl_debug_guest(struct kvm_vcpu *vcpu,
	228	struct kvm_debug_guest *dbg);
	229	int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu vcpu, struct kvm_run kvm_run);
	230
f8c16bba ZX	231	int kvm_arch_init(void *opaque);
f8c16bba ZX	232	void kvm_arch_exit(void);
043405e1	233
e9b11c17 ZX	234	int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu);
	235	void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu);
	236
	237	void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu);
	238	void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu);
	239	void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu);
	240	struct kvm_vcpu kvm_arch_vcpu_create(struct kvm kvm, unsigned int id);
26e5215f	241	int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu);
d40ccc62	242	void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu);
e9b11c17 ZX	243
	244	int kvm_arch_vcpu_reset(struct kvm_vcpu *vcpu);
	245	void kvm_arch_hardware_enable(void *garbage);
	246	void kvm_arch_hardware_disable(void *garbage);
	247	int kvm_arch_hardware_setup(void);
	248	void kvm_arch_hardware_unsetup(void);
	249	void kvm_arch_check_processor_compat(void *rtn);
1d737c8a	250	int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu);
e9b11c17	251
d19a9cd2 ZX	252	void kvm_free_physmem(struct kvm *kvm);
	253
	254	struct kvm *kvm_arch_create_vm(void);
	255	void kvm_arch_destroy_vm(struct kvm *kvm);
e9b11c17	256
682c59a3 ZX	257	int kvm_cpu_get_interrupt(struct kvm_vcpu *v);
682c59a3 ZX	258	int kvm_cpu_has_interrupt(struct kvm_vcpu *v);
5736199a	259	void kvm_vcpu_kick(struct kvm_vcpu *vcpu);
682c59a3	260
d172fcd3 LV	261	static inline void kvm_guest_enter(void)
d172fcd3 LV	262	{
e56a7a28	263	account_system_vtime(current);
d172fcd3 LV	264	current->flags \|= PF_VCPU;
	265	}
	266
	267	static inline void kvm_guest_exit(void)
	268	{
e56a7a28	269	account_system_vtime(current);
d172fcd3 LV	270	current->flags &= ~PF_VCPU;
	271	}
	272
6aa8b732 AK	273	static inline int memslot_id(struct kvm kvm, struct kvm_memory_slot slot)
	274	{
	275	return slot - kvm->memslots;
	276	}
	277
1755fbcc AK	278	static inline gpa_t gfn_to_gpa(gfn_t gfn)
	279	{
	280	return (gpa_t)gfn << PAGE_SHIFT;
	281	}
6aa8b732	282
2f52d58c AK	283	static inline void kvm_migrate_apic_timer(struct kvm_vcpu *vcpu)
	284	{
	285	set_bit(KVM_REQ_MIGRATE_TIMER, &vcpu->requests);
	286	}
	287
ba1389b7 AK	288	enum kvm_stat_kind {
	289	KVM_STAT_VM,
	290	KVM_STAT_VCPU,
	291	};
	292
417bc304 HB	293	struct kvm_stats_debugfs_item {
	294	const char *name;
	295	int offset;
ba1389b7	296	enum kvm_stat_kind kind;
417bc304 HB	297	struct dentry *dentry;
	298	};
	299	extern struct kvm_stats_debugfs_item debugfs_entries[];
	300
6aa8b732	301	#endif