[linux-2.6-block.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 <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

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;
	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 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);

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);
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);
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_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_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);
int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu);
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_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 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

#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>
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
6aa8b732	37
6aa8b732	38	struct kvm_vcpu;
c16f862d	39	extern struct kmem_cache *kvm_vcpu_cache;
6aa8b732	40
2eeb2e94 GH	41	/*
	42	* It would be nice to use something smarter than a linear search, TBD...
	43	* Thankfully we dont expect many devices to register (famous last words :),
	44	* so until then it will suffice. At least its abstracted so we can change
	45	* in one place.
	46	*/
	47	struct kvm_io_bus {
	48	int dev_count;
	49	#define NR_IOBUS_DEVS 6
	50	struct kvm_io_device *devs[NR_IOBUS_DEVS];
	51	};
	52
	53	void kvm_io_bus_init(struct kvm_io_bus *bus);
	54	void kvm_io_bus_destroy(struct kvm_io_bus *bus);
92760499 LV	55	struct kvm_io_device kvm_io_bus_find_dev(struct kvm_io_bus bus,
92760499 LV	56	gpa_t addr, int len, int is_write);
2eeb2e94 GH	57	void kvm_io_bus_register_dev(struct kvm_io_bus *bus,
	58	struct kvm_io_device *dev);
	59
d17fbbf7 ZX	60	struct kvm_vcpu {
d17fbbf7 ZX	61	struct kvm *kvm;
31bb117e	62	#ifdef CONFIG_PREEMPT_NOTIFIERS
d17fbbf7	63	struct preempt_notifier preempt_notifier;
31bb117e	64	#endif
d17fbbf7 ZX	65	int vcpu_id;
	66	struct mutex mutex;
	67	int cpu;
	68	struct kvm_run *run;
	69	int guest_mode;
	70	unsigned long requests;
	71	struct kvm_guest_debug guest_debug;
	72	int fpu_active;
	73	int guest_fpu_loaded;
	74	wait_queue_head_t wq;
	75	int sigset_active;
	76	sigset_t sigset;
	77	struct kvm_vcpu_stat stat;
	78
34c16eec	79	#ifdef CONFIG_HAS_IOMEM
d17fbbf7 ZX	80	int mmio_needed;
	81	int mmio_read_completed;
	82	int mmio_is_write;
	83	int mmio_size;
	84	unsigned char mmio_data[8];
6aa8b732	85	gpa_t mmio_phys_addr;
34c16eec	86	#endif
1165f5fe	87
d657a98e ZX	88	struct kvm_vcpu_arch arch;
	89	};
	90
6aa8b732 AK	91	struct kvm_memory_slot {
	92	gfn_t base_gfn;
	93	unsigned long npages;
	94	unsigned long flags;
290fc38d	95	unsigned long *rmap;
6aa8b732	96	unsigned long *dirty_bitmap;
05da4558 MT	97	struct {
	98	unsigned long rmap_pde;
	99	int write_count;
	100	} *lpage_info;
8a7ae055	101	unsigned long userspace_addr;
80b14b5b	102	int user_alloc;
6aa8b732 AK	103	};
	104
	105	struct kvm {
aaee2c94 MT	106	struct mutex lock; /* protects the vcpus array and APIC accesses */
aaee2c94 MT	107	spinlock_t mmu_lock;
72dc67a6	108	struct rw_semaphore slots_lock;
6d4e4c4f	109	struct mm_struct mm; / userspace tied to this vm */
6aa8b732	110	int nmemslots;
e0d62c7f IE	111	struct kvm_memory_slot memslots[KVM_MEMORY_SLOTS +
e0d62c7f IE	112	KVM_PRIVATE_MEM_SLOTS];
fb3f0f51	113	struct kvm_vcpu *vcpus[KVM_MAX_VCPUS];
133de902	114	struct list_head vm_list;
2eeb2e94	115	struct kvm_io_bus mmio_bus;
74906345	116	struct kvm_io_bus pio_bus;
ba1389b7	117	struct kvm_vm_stat stat;
d69fb81f	118	struct kvm_arch arch;
d39f13b0	119	atomic_t users_count;
6aa8b732 AK	120	};
6aa8b732 AK	121
f0242478 RR	122	/* The guest did something we don't support. */
	123	#define pr_unimpl(vcpu, fmt, ...) \
	124	do { \
	125	if (printk_ratelimit()) \
	126	printk(KERN_ERR "kvm: %i: cpu%i " fmt, \
	127	current->tgid, (vcpu)->vcpu_id , ## __VA_ARGS__); \
d77c26fc	128	} while (0)
f0242478	129
6aa8b732 AK	130	#define kvm_printf(kvm, fmt ...) printk(KERN_DEBUG fmt)
	131	#define vcpu_printf(vcpu, fmt...) kvm_printf(vcpu->kvm, fmt)
	132
fb3f0f51 RR	133	int kvm_vcpu_init(struct kvm_vcpu vcpu, struct kvm kvm, unsigned id);
	134	void kvm_vcpu_uninit(struct kvm_vcpu *vcpu);
	135
313a3dc7 CO	136	void vcpu_load(struct kvm_vcpu *vcpu);
	137	void vcpu_put(struct kvm_vcpu *vcpu);
	138
f8c16bba	139	int kvm_init(void *opaque, unsigned int vcpu_size,
c16f862d	140	struct module *module);
cb498ea2	141	void kvm_exit(void);
6aa8b732	142
d39f13b0 IE	143	void kvm_get_kvm(struct kvm *kvm);
	144	void kvm_put_kvm(struct kvm *kvm);
	145
6aa8b732 AK	146	#define HPA_MSB ((sizeof(hpa_t) * 8) - 1)
	147	#define HPA_ERR_MASK ((hpa_t)1 << HPA_MSB)
	148	static inline int is_error_hpa(hpa_t hpa) { return hpa >> HPA_MSB; }
039576c0	149	struct page gva_to_page(struct kvm_vcpu vcpu, gva_t gva);
6aa8b732	150
cea7bb21	151	extern struct page *bad_page;
35149e21	152	extern pfn_t bad_pfn;
6aa8b732	153
cea7bb21	154	int is_error_page(struct page *page);
35149e21	155	int is_error_pfn(pfn_t pfn);
f9d46eb0	156	int kvm_is_error_hva(unsigned long addr);
210c7c4d IE	157	int kvm_set_memory_region(struct kvm *kvm,
	158	struct kvm_userspace_memory_region *mem,
	159	int user_alloc);
f78e0e2e SY	160	int __kvm_set_memory_region(struct kvm *kvm,
	161	struct kvm_userspace_memory_region *mem,
	162	int user_alloc);
0de10343 ZX	163	int kvm_arch_set_memory_region(struct kvm *kvm,
	164	struct kvm_userspace_memory_region *mem,
	165	struct kvm_memory_slot old,
	166	int user_alloc);
290fc38d	167	gfn_t unalias_gfn(struct kvm *kvm, gfn_t gfn);
954bbbc2	168	struct page gfn_to_page(struct kvm kvm, gfn_t gfn);
05da4558	169	unsigned long gfn_to_hva(struct kvm *kvm, gfn_t gfn);
b4231d61 IE	170	void kvm_release_page_clean(struct page *page);
b4231d61 IE	171	void kvm_release_page_dirty(struct page *page);
35149e21 AL	172	void kvm_set_page_dirty(struct page *page);
	173	void kvm_set_page_accessed(struct page *page);
	174
	175	pfn_t gfn_to_pfn(struct kvm *kvm, gfn_t gfn);
	176	void kvm_release_pfn_dirty(pfn_t);
	177	void kvm_release_pfn_clean(pfn_t pfn);
	178	void kvm_set_pfn_dirty(pfn_t pfn);
	179	void kvm_set_pfn_accessed(pfn_t pfn);
	180	void kvm_get_pfn(pfn_t pfn);
	181
195aefde IE	182	int kvm_read_guest_page(struct kvm kvm, gfn_t gfn, void data, int offset,
195aefde IE	183	int len);
7ec54588 MT	184	int kvm_read_guest_atomic(struct kvm kvm, gpa_t gpa, void data,
7ec54588 MT	185	unsigned long len);
195aefde IE	186	int kvm_read_guest(struct kvm kvm, gpa_t gpa, void data, unsigned long len);
	187	int kvm_write_guest_page(struct kvm kvm, gfn_t gfn, const void data,
	188	int offset, int len);
	189	int kvm_write_guest(struct kvm kvm, gpa_t gpa, const void data,
	190	unsigned long len);
	191	int kvm_clear_guest_page(struct kvm *kvm, gfn_t gfn, int offset, int len);
	192	int kvm_clear_guest(struct kvm *kvm, gpa_t gpa, unsigned long len);
6aa8b732	193	struct kvm_memory_slot gfn_to_memslot(struct kvm kvm, gfn_t gfn);
e0d62c7f	194	int kvm_is_visible_gfn(struct kvm *kvm, gfn_t gfn);
6aa8b732 AK	195	void mark_page_dirty(struct kvm *kvm, gfn_t gfn);
6aa8b732 AK	196
8776e519	197	void kvm_vcpu_block(struct kvm_vcpu *vcpu);
6aa8b732	198	void kvm_resched(struct kvm_vcpu *vcpu);
7702fd1f AK	199	void kvm_load_guest_fpu(struct kvm_vcpu *vcpu);
7702fd1f AK	200	void kvm_put_guest_fpu(struct kvm_vcpu *vcpu);
d9e368d6	201	void kvm_flush_remote_tlbs(struct kvm *kvm);
2e53d63a	202	void kvm_reload_remote_mmus(struct kvm *kvm);
6aa8b732	203
043405e1 CO	204	long kvm_arch_dev_ioctl(struct file *filp,
043405e1 CO	205	unsigned int ioctl, unsigned long arg);
313a3dc7 CO	206	long kvm_arch_vcpu_ioctl(struct file *filp,
	207	unsigned int ioctl, unsigned long arg);
	208	void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu);
	209	void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu);
018d00d2 ZX	210
	211	int kvm_dev_ioctl_check_extension(long ext);
	212
5bb064dc ZX	213	int kvm_get_dirty_log(struct kvm *kvm,
	214	struct kvm_dirty_log log, int is_dirty);
	215	int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm,
	216	struct kvm_dirty_log *log);
	217
1fe779f8 CO	218	int kvm_vm_ioctl_set_memory_region(struct kvm *kvm,
	219	struct
	220	kvm_userspace_memory_region *mem,
	221	int user_alloc);
	222	long kvm_arch_vm_ioctl(struct file *filp,
	223	unsigned int ioctl, unsigned long arg);
	224	void kvm_arch_destroy_vm(struct kvm *kvm);
313a3dc7	225
d0752060 HB	226	int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu vcpu, struct kvm_fpu fpu);
	227	int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu vcpu, struct kvm_fpu fpu);
	228
8b006791 ZX	229	int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu,
	230	struct kvm_translation *tr);
	231
b6c7a5dc HB	232	int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu vcpu, struct kvm_regs regs);
	233	int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu vcpu, struct kvm_regs regs);
	234	int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu,
	235	struct kvm_sregs *sregs);
	236	int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
	237	struct kvm_sregs *sregs);
62d9f0db MT	238	int kvm_arch_vcpu_ioctl_get_mpstate(struct kvm_vcpu *vcpu,
	239	struct kvm_mp_state *mp_state);
	240	int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu,
	241	struct kvm_mp_state *mp_state);
b6c7a5dc HB	242	int kvm_arch_vcpu_ioctl_debug_guest(struct kvm_vcpu *vcpu,
	243	struct kvm_debug_guest *dbg);
	244	int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu vcpu, struct kvm_run kvm_run);
	245
f8c16bba ZX	246	int kvm_arch_init(void *opaque);
f8c16bba ZX	247	void kvm_arch_exit(void);
043405e1	248
e9b11c17 ZX	249	int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu);
	250	void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu);
	251
	252	void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu);
	253	void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu);
	254	void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu);
	255	struct kvm_vcpu kvm_arch_vcpu_create(struct kvm kvm, unsigned int id);
26e5215f	256	int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu);
d40ccc62	257	void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu);
e9b11c17 ZX	258
	259	int kvm_arch_vcpu_reset(struct kvm_vcpu *vcpu);
	260	void kvm_arch_hardware_enable(void *garbage);
	261	void kvm_arch_hardware_disable(void *garbage);
	262	int kvm_arch_hardware_setup(void);
	263	void kvm_arch_hardware_unsetup(void);
	264	void kvm_arch_check_processor_compat(void *rtn);
1d737c8a	265	int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu);
e9b11c17	266
d19a9cd2 ZX	267	void kvm_free_physmem(struct kvm *kvm);
	268
	269	struct kvm *kvm_arch_create_vm(void);
	270	void kvm_arch_destroy_vm(struct kvm *kvm);
e9b11c17	271
682c59a3 ZX	272	int kvm_cpu_get_interrupt(struct kvm_vcpu *v);
682c59a3 ZX	273	int kvm_cpu_has_interrupt(struct kvm_vcpu *v);
3d80840d	274	int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu);
5736199a	275	void kvm_vcpu_kick(struct kvm_vcpu *vcpu);
682c59a3	276
d172fcd3 LV	277	static inline void kvm_guest_enter(void)
d172fcd3 LV	278	{
e56a7a28	279	account_system_vtime(current);
d172fcd3 LV	280	current->flags \|= PF_VCPU;
	281	}
	282
	283	static inline void kvm_guest_exit(void)
	284	{
e56a7a28	285	account_system_vtime(current);
d172fcd3 LV	286	current->flags &= ~PF_VCPU;
	287	}
	288
6aa8b732 AK	289	static inline int memslot_id(struct kvm kvm, struct kvm_memory_slot slot)
	290	{
	291	return slot - kvm->memslots;
	292	}
	293
1755fbcc AK	294	static inline gpa_t gfn_to_gpa(gfn_t gfn)
	295	{
	296	return (gpa_t)gfn << PAGE_SHIFT;
	297	}
6aa8b732	298
2f599714	299	static inline void kvm_migrate_timers(struct kvm_vcpu *vcpu)
2f52d58c AK	300	{
	301	set_bit(KVM_REQ_MIGRATE_TIMER, &vcpu->requests);
	302	}
	303
ba1389b7 AK	304	enum kvm_stat_kind {
	305	KVM_STAT_VM,
	306	KVM_STAT_VCPU,
	307	};
	308
417bc304 HB	309	struct kvm_stats_debugfs_item {
	310	const char *name;
	311	int offset;
ba1389b7	312	enum kvm_stat_kind kind;
417bc304 HB	313	struct dentry *dentry;
	314	};
	315	extern struct kvm_stats_debugfs_item debugfs_entries[];
76f7c879	316	extern struct dentry *kvm_debugfs_dir;
d4c9ff2d FEL	317
	318	#ifdef CONFIG_KVM_TRACE
	319	int kvm_trace_ioctl(unsigned int ioctl, unsigned long arg);
	320	void kvm_trace_cleanup(void);
	321	#else
	322	static inline
	323	int kvm_trace_ioctl(unsigned int ioctl, unsigned long arg)
	324	{
	325	return -EINVAL;
	326	}
	327	#define kvm_trace_cleanup() ((void)0)
	328	#endif
417bc304	329
6aa8b732	330	#endif