[net-next-2.6.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>

#define KVM_MAX_VCPUS 4
#define KVM_MEMORY_SLOTS 8
/* memory slots that does not exposed to userspace */
#define KVM_PRIVATE_MEM_SLOTS 4

#define KVM_PIO_PAGE_OFFSET 1

/*
 * vcpu->requests bit members
 */
#define KVM_REQ_TLB_FLUSH          0
#define KVM_REQ_REPORT_TPR_ACCESS  2

struct kvm_vcpu;
extern struct kmem_cache *kvm_vcpu_cache;

struct kvm_guest_debug {
	int enabled;
	unsigned long bp[4];
	int singlestep;
};

/*
 * 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;
	struct preempt_notifier preempt_notifier;
	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;
	unsigned long userspace_addr;
	int user_alloc;
};

struct kvm {
	struct mutex lock; /* protects everything except vcpus */
	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;
};

/* 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);

#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);
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(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);

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;
}

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
ef9254df	27	#define KVM_MAX_VCPUS 4
2e2c618d	28	#define KVM_MEMORY_SLOTS 8
e0d62c7f IE	29	/* memory slots that does not exposed to userspace */
e0d62c7f IE	30	#define KVM_PRIVATE_MEM_SLOTS 4
6aa8b732	31
039576c0 AK	32	#define KVM_PIO_PAGE_OFFSET 1
039576c0 AK	33
d9e368d6 AK	34	/*
	35	* vcpu->requests bit members
	36	*/
3176bc3e	37	#define KVM_REQ_TLB_FLUSH 0
b209749f	38	#define KVM_REQ_REPORT_TPR_ACCESS 2
6aa8b732	39
6aa8b732	40	struct kvm_vcpu;
c16f862d	41	extern struct kmem_cache *kvm_vcpu_cache;
6aa8b732	42
6aa8b732 AK	43	struct kvm_guest_debug {
	44	int enabled;
	45	unsigned long bp[4];
	46	int singlestep;
	47	};
	48
2eeb2e94 GH	49	/*
	50	* It would be nice to use something smarter than a linear search, TBD...
	51	* Thankfully we dont expect many devices to register (famous last words :),
	52	* so until then it will suffice. At least its abstracted so we can change
	53	* in one place.
	54	*/
	55	struct kvm_io_bus {
	56	int dev_count;
	57	#define NR_IOBUS_DEVS 6
	58	struct kvm_io_device *devs[NR_IOBUS_DEVS];
	59	};
	60
	61	void kvm_io_bus_init(struct kvm_io_bus *bus);
	62	void kvm_io_bus_destroy(struct kvm_io_bus *bus);
	63	struct kvm_io_device kvm_io_bus_find_dev(struct kvm_io_bus bus, gpa_t addr);
	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 {
	68	struct kvm *kvm;
	69	struct preempt_notifier preempt_notifier;
	70	int vcpu_id;
	71	struct mutex mutex;
	72	int cpu;
	73	struct kvm_run *run;
	74	int guest_mode;
	75	unsigned long requests;
	76	struct kvm_guest_debug guest_debug;
	77	int fpu_active;
	78	int guest_fpu_loaded;
	79	wait_queue_head_t wq;
	80	int sigset_active;
	81	sigset_t sigset;
	82	struct kvm_vcpu_stat stat;
	83
34c16eec	84	#ifdef CONFIG_HAS_IOMEM
d17fbbf7 ZX	85	int mmio_needed;
	86	int mmio_read_completed;
	87	int mmio_is_write;
	88	int mmio_size;
	89	unsigned char mmio_data[8];
6aa8b732	90	gpa_t mmio_phys_addr;
34c16eec	91	#endif
1165f5fe	92
d657a98e ZX	93	struct kvm_vcpu_arch arch;
	94	};
	95
6aa8b732 AK	96	struct kvm_memory_slot {
	97	gfn_t base_gfn;
	98	unsigned long npages;
	99	unsigned long flags;
290fc38d	100	unsigned long *rmap;
6aa8b732	101	unsigned long *dirty_bitmap;
8a7ae055	102	unsigned long userspace_addr;
80b14b5b	103	int user_alloc;
6aa8b732 AK	104	};
	105
	106	struct kvm {
11ec2804	107	struct mutex lock; /* protects everything except vcpus */
6d4e4c4f	108	struct mm_struct mm; / userspace tied to this vm */
6aa8b732	109	int nmemslots;
e0d62c7f IE	110	struct kvm_memory_slot memslots[KVM_MEMORY_SLOTS +
e0d62c7f IE	111	KVM_PRIVATE_MEM_SLOTS];
fb3f0f51	112	struct kvm_vcpu *vcpus[KVM_MAX_VCPUS];
133de902	113	struct list_head vm_list;
bccf2150	114	struct file *filp;
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;
6aa8b732 AK	119	};
6aa8b732 AK	120
f0242478 RR	121	/* The guest did something we don't support. */
	122	#define pr_unimpl(vcpu, fmt, ...) \
	123	do { \
	124	if (printk_ratelimit()) \
	125	printk(KERN_ERR "kvm: %i: cpu%i " fmt, \
	126	current->tgid, (vcpu)->vcpu_id , ## __VA_ARGS__); \
d77c26fc	127	} while (0)
f0242478	128
6aa8b732 AK	129	#define kvm_printf(kvm, fmt ...) printk(KERN_DEBUG fmt)
	130	#define vcpu_printf(vcpu, fmt...) kvm_printf(vcpu->kvm, fmt)
	131
fb3f0f51 RR	132	int kvm_vcpu_init(struct kvm_vcpu vcpu, struct kvm kvm, unsigned id);
	133	void kvm_vcpu_uninit(struct kvm_vcpu *vcpu);
	134
313a3dc7 CO	135	void vcpu_load(struct kvm_vcpu *vcpu);
	136	void vcpu_put(struct kvm_vcpu *vcpu);
	137
e9b11c17 ZX	138	void decache_vcpus_on_cpu(int cpu);
e9b11c17 ZX	139
313a3dc7	140
f8c16bba	141	int kvm_init(void *opaque, unsigned int vcpu_size,
c16f862d	142	struct module *module);
cb498ea2	143	void kvm_exit(void);
6aa8b732	144
6aa8b732 AK	145	#define HPA_MSB ((sizeof(hpa_t) * 8) - 1)
	146	#define HPA_ERR_MASK ((hpa_t)1 << HPA_MSB)
	147	static inline int is_error_hpa(hpa_t hpa) { return hpa >> HPA_MSB; }
039576c0	148	struct page gva_to_page(struct kvm_vcpu vcpu, gva_t gva);
6aa8b732	149
cea7bb21	150	extern struct page *bad_page;
6aa8b732	151
cea7bb21	152	int is_error_page(struct page *page);
f9d46eb0	153	int kvm_is_error_hva(unsigned long addr);
210c7c4d IE	154	int kvm_set_memory_region(struct kvm *kvm,
	155	struct kvm_userspace_memory_region *mem,
	156	int user_alloc);
f78e0e2e SY	157	int __kvm_set_memory_region(struct kvm *kvm,
	158	struct kvm_userspace_memory_region *mem,
	159	int user_alloc);
0de10343 ZX	160	int kvm_arch_set_memory_region(struct kvm *kvm,
	161	struct kvm_userspace_memory_region *mem,
	162	struct kvm_memory_slot old,
	163	int user_alloc);
290fc38d	164	gfn_t unalias_gfn(struct kvm *kvm, gfn_t gfn);
954bbbc2	165	struct page gfn_to_page(struct kvm kvm, gfn_t gfn);
b4231d61 IE	166	void kvm_release_page_clean(struct page *page);
b4231d61 IE	167	void kvm_release_page_dirty(struct page *page);
195aefde IE	168	int kvm_read_guest_page(struct kvm kvm, gfn_t gfn, void data, int offset,
	169	int len);
	170	int kvm_read_guest(struct kvm kvm, gpa_t gpa, void data, unsigned long len);
	171	int kvm_write_guest_page(struct kvm kvm, gfn_t gfn, const void data,
	172	int offset, int len);
	173	int kvm_write_guest(struct kvm kvm, gpa_t gpa, const void data,
	174	unsigned long len);
	175	int kvm_clear_guest_page(struct kvm *kvm, gfn_t gfn, int offset, int len);
	176	int kvm_clear_guest(struct kvm *kvm, gpa_t gpa, unsigned long len);
6aa8b732	177	struct kvm_memory_slot gfn_to_memslot(struct kvm kvm, gfn_t gfn);
e0d62c7f	178	int kvm_is_visible_gfn(struct kvm *kvm, gfn_t gfn);
6aa8b732 AK	179	void mark_page_dirty(struct kvm *kvm, gfn_t gfn);
6aa8b732 AK	180
8776e519	181	void kvm_vcpu_block(struct kvm_vcpu *vcpu);
6aa8b732	182	void kvm_resched(struct kvm_vcpu *vcpu);
7702fd1f AK	183	void kvm_load_guest_fpu(struct kvm_vcpu *vcpu);
7702fd1f AK	184	void kvm_put_guest_fpu(struct kvm_vcpu *vcpu);
d9e368d6	185	void kvm_flush_remote_tlbs(struct kvm *kvm);
6aa8b732	186
043405e1 CO	187	long kvm_arch_dev_ioctl(struct file *filp,
043405e1 CO	188	unsigned int ioctl, unsigned long arg);
313a3dc7 CO	189	long kvm_arch_vcpu_ioctl(struct file *filp,
	190	unsigned int ioctl, unsigned long arg);
	191	void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu);
	192	void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu);
018d00d2 ZX	193
	194	int kvm_dev_ioctl_check_extension(long ext);
	195
5bb064dc ZX	196	int kvm_get_dirty_log(struct kvm *kvm,
	197	struct kvm_dirty_log log, int is_dirty);
	198	int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm,
	199	struct kvm_dirty_log *log);
	200
1fe779f8 CO	201	int kvm_vm_ioctl_set_memory_region(struct kvm *kvm,
	202	struct
	203	kvm_userspace_memory_region *mem,
	204	int user_alloc);
	205	long kvm_arch_vm_ioctl(struct file *filp,
	206	unsigned int ioctl, unsigned long arg);
	207	void kvm_arch_destroy_vm(struct kvm *kvm);
313a3dc7	208
d0752060 HB	209	int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu vcpu, struct kvm_fpu fpu);
	210	int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu vcpu, struct kvm_fpu fpu);
	211
8b006791 ZX	212	int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu,
	213	struct kvm_translation *tr);
	214
b6c7a5dc HB	215	int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu vcpu, struct kvm_regs regs);
	216	int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu vcpu, struct kvm_regs regs);
	217	int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu,
	218	struct kvm_sregs *sregs);
	219	int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
	220	struct kvm_sregs *sregs);
	221	int kvm_arch_vcpu_ioctl_debug_guest(struct kvm_vcpu *vcpu,
	222	struct kvm_debug_guest *dbg);
	223	int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu vcpu, struct kvm_run kvm_run);
	224
f8c16bba ZX	225	int kvm_arch_init(void *opaque);
f8c16bba ZX	226	void kvm_arch_exit(void);
043405e1	227
e9b11c17 ZX	228	int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu);
	229	void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu);
	230
	231	void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu);
	232	void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu);
	233	void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu);
	234	struct kvm_vcpu kvm_arch_vcpu_create(struct kvm kvm, unsigned int id);
26e5215f	235	int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu);
d40ccc62	236	void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu);
e9b11c17 ZX	237
	238	int kvm_arch_vcpu_reset(struct kvm_vcpu *vcpu);
	239	void kvm_arch_hardware_enable(void *garbage);
	240	void kvm_arch_hardware_disable(void *garbage);
	241	int kvm_arch_hardware_setup(void);
	242	void kvm_arch_hardware_unsetup(void);
	243	void kvm_arch_check_processor_compat(void *rtn);
1d737c8a	244	int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu);
e9b11c17	245
d19a9cd2 ZX	246	void kvm_free_physmem(struct kvm *kvm);
	247
	248	struct kvm *kvm_arch_create_vm(void);
	249	void kvm_arch_destroy_vm(struct kvm *kvm);
e9b11c17	250
682c59a3 ZX	251	int kvm_cpu_get_interrupt(struct kvm_vcpu *v);
682c59a3 ZX	252	int kvm_cpu_has_interrupt(struct kvm_vcpu *v);
5736199a	253	void kvm_vcpu_kick(struct kvm_vcpu *vcpu);
682c59a3	254
d172fcd3 LV	255	static inline void kvm_guest_enter(void)
d172fcd3 LV	256	{
e56a7a28	257	account_system_vtime(current);
d172fcd3 LV	258	current->flags \|= PF_VCPU;
	259	}
	260
	261	static inline void kvm_guest_exit(void)
	262	{
e56a7a28	263	account_system_vtime(current);
d172fcd3 LV	264	current->flags &= ~PF_VCPU;
	265	}
	266
6aa8b732 AK	267	static inline int memslot_id(struct kvm kvm, struct kvm_memory_slot slot)
	268	{
	269	return slot - kvm->memslots;
	270	}
	271
1755fbcc AK	272	static inline gpa_t gfn_to_gpa(gfn_t gfn)
	273	{
	274	return (gpa_t)gfn << PAGE_SHIFT;
	275	}
6aa8b732	276
ba1389b7 AK	277	enum kvm_stat_kind {
	278	KVM_STAT_VM,
	279	KVM_STAT_VCPU,
	280	};
	281
417bc304 HB	282	struct kvm_stats_debugfs_item {
	283	const char *name;
	284	int offset;
ba1389b7	285	enum kvm_stat_kind kind;
417bc304 HB	286	struct dentry *dentry;
	287	};
	288	extern struct kvm_stats_debugfs_item debugfs_entries[];
	289
6aa8b732	290	#endif