[net-next-2.6.git] / drivers / kvm / kvm.h

#ifndef __KVM_H
#define __KVM_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 "types.h"

#include "x86.h"

#define KVM_MAX_VCPUS 4
#define KVM_ALIAS_SLOTS 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


struct kvm_vcpu;
extern struct kmem_cache *kvm_vcpu_cache;

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

struct kvm_vcpu_stat {
	u32 pf_fixed;
	u32 pf_guest;
	u32 tlb_flush;
	u32 invlpg;

	u32 exits;
	u32 io_exits;
	u32 mmio_exits;
	u32 signal_exits;
	u32 irq_window_exits;
	u32 halt_exits;
	u32 halt_wakeup;
	u32 request_irq_exits;
	u32 irq_exits;
	u32 host_state_reload;
	u32 efer_reload;
	u32 fpu_reload;
	u32 insn_emulation;
	u32 insn_emulation_fail;
};

/*
 * 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);

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

#else
#define KVM_VCPU_MMIO

#endif

#define KVM_VCPU_COMM 					\
	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;			\
	KVM_VCPU_MMIO

struct kvm_vcpu {
	KVM_VCPU_COMM;

	struct kvm_vcpu_arch arch;
};

struct kvm_mem_alias {
	gfn_t base_gfn;
	unsigned long npages;
	gfn_t target_gfn;
};

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_vm_stat {
	u32 mmu_shadow_zapped;
	u32 mmu_pte_write;
	u32 mmu_pte_updated;
	u32 mmu_pde_zapped;
	u32 mmu_flooded;
	u32 mmu_recycled;
	u32 remote_tlb_flush;
};

struct kvm {
	struct mutex lock; /* protects everything except vcpus */
	struct mm_struct *mm; /* userspace tied to this vm */
	int naliases;
	struct kvm_mem_alias aliases[KVM_ALIAS_SLOTS];
	int nmemslots;
	struct kvm_memory_slot memslots[KVM_MEMORY_SLOTS +
					KVM_PRIVATE_MEM_SLOTS];
	/*
	 * Hash table of struct kvm_mmu_page.
	 */
	struct list_head active_mmu_pages;
	unsigned int n_free_mmu_pages;
	unsigned int n_requested_mmu_pages;
	unsigned int n_alloc_mmu_pages;
	struct hlist_head mmu_page_hash[KVM_NUM_MMU_PAGES];
	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_pic *vpic;
	struct kvm_ioapic *vioapic;
	int round_robin_prev_vcpu;
	unsigned int tss_addr;
	struct page *apic_access_page;
	struct kvm_vm_stat stat;
};

/* 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);

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
6aa8b732 AK	1	#ifndef __KVM_H
	2	#define __KVM_H
	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
d77a39d9 HB	23	#include "types.h"
d77a39d9 HB	24
d657a98e ZX	25	#include "x86.h"
d657a98e ZX	26
ef9254df	27	#define KVM_MAX_VCPUS 4
e8207547	28	#define KVM_ALIAS_SLOTS 4
2e2c618d	29	#define KVM_MEMORY_SLOTS 8
e0d62c7f IE	30	/* memory slots that does not exposed to userspace */
e0d62c7f IE	31	#define KVM_PRIVATE_MEM_SLOTS 4
6aa8b732	32
039576c0 AK	33	#define KVM_PIO_PAGE_OFFSET 1
039576c0 AK	34
d9e368d6 AK	35	/*
	36	* vcpu->requests bit members
	37	*/
3176bc3e	38	#define KVM_REQ_TLB_FLUSH 0
d9e368d6	39
6aa8b732	40
6aa8b732	41	struct kvm_vcpu;
c16f862d	42	extern struct kmem_cache *kvm_vcpu_cache;
6aa8b732	43
6aa8b732 AK	44	struct kvm_guest_debug {
	45	int enabled;
	46	unsigned long bp[4];
	47	int singlestep;
	48	};
	49
ba1389b7	50	struct kvm_vcpu_stat {
1165f5fe AK	51	u32 pf_fixed;
	52	u32 pf_guest;
	53	u32 tlb_flush;
	54	u32 invlpg;
	55
	56	u32 exits;
	57	u32 io_exits;
	58	u32 mmio_exits;
	59	u32 signal_exits;
	60	u32 irq_window_exits;
	61	u32 halt_exits;
b6958ce4	62	u32 halt_wakeup;
1165f5fe AK	63	u32 request_irq_exits;
1165f5fe AK	64	u32 irq_exits;
e1beb1d3	65	u32 host_state_reload;
2cc51560	66	u32 efer_reload;
f096ed85	67	u32 fpu_reload;
f2b5756b AK	68	u32 insn_emulation;
f2b5756b AK	69	u32 insn_emulation_fail;
1165f5fe AK	70	};
1165f5fe AK	71
2eeb2e94 GH	72	/*
	73	* It would be nice to use something smarter than a linear search, TBD...
	74	* Thankfully we dont expect many devices to register (famous last words :),
	75	* so until then it will suffice. At least its abstracted so we can change
	76	* in one place.
	77	*/
	78	struct kvm_io_bus {
	79	int dev_count;
	80	#define NR_IOBUS_DEVS 6
	81	struct kvm_io_device *devs[NR_IOBUS_DEVS];
	82	};
	83
	84	void kvm_io_bus_init(struct kvm_io_bus *bus);
	85	void kvm_io_bus_destroy(struct kvm_io_bus *bus);
	86	struct kvm_io_device kvm_io_bus_find_dev(struct kvm_io_bus bus, gpa_t addr);
	87	void kvm_io_bus_register_dev(struct kvm_io_bus *bus,
	88	struct kvm_io_device *dev);
	89
34c16eec ZX	90	#ifdef CONFIG_HAS_IOMEM
	91	#define KVM_VCPU_MMIO \
	92	int mmio_needed; \
	93	int mmio_read_completed; \
	94	int mmio_is_write; \
	95	int mmio_size; \
	96	unsigned char mmio_data[8]; \
6aa8b732 AK	97	gpa_t mmio_phys_addr;
6aa8b732 AK	98
34c16eec ZX	99	#else
34c16eec ZX	100	#define KVM_VCPU_MMIO
1961d276	101
34c16eec	102	#endif
1165f5fe	103
34c16eec ZX	104	#define KVM_VCPU_COMM \
	105	struct kvm *kvm; \
	106	struct preempt_notifier preempt_notifier; \
	107	int vcpu_id; \
	108	struct mutex mutex; \
	109	int cpu; \
	110	struct kvm_run *run; \
	111	int guest_mode; \
	112	unsigned long requests; \
	113	struct kvm_guest_debug guest_debug; \
	114	int fpu_active; \
	115	int guest_fpu_loaded; \
	116	wait_queue_head_t wq; \
	117	int sigset_active; \
	118	sigset_t sigset; \
ba1389b7	119	struct kvm_vcpu_stat stat; \
34c16eec	120	KVM_VCPU_MMIO
6aa8b732	121
d657a98e ZX	122	struct kvm_vcpu {
	123	KVM_VCPU_COMM;
	124
	125	struct kvm_vcpu_arch arch;
	126	};
	127
e8207547 AK	128	struct kvm_mem_alias {
	129	gfn_t base_gfn;
	130	unsigned long npages;
	131	gfn_t target_gfn;
	132	};
	133
6aa8b732 AK	134	struct kvm_memory_slot {
	135	gfn_t base_gfn;
	136	unsigned long npages;
	137	unsigned long flags;
290fc38d	138	unsigned long *rmap;
6aa8b732	139	unsigned long *dirty_bitmap;
8a7ae055	140	unsigned long userspace_addr;
80b14b5b	141	int user_alloc;
6aa8b732 AK	142	};
6aa8b732 AK	143
ba1389b7	144	struct kvm_vm_stat {
4cee5764 AK	145	u32 mmu_shadow_zapped;
	146	u32 mmu_pte_write;
	147	u32 mmu_pte_updated;
	148	u32 mmu_pde_zapped;
	149	u32 mmu_flooded;
	150	u32 mmu_recycled;
0f74a24c	151	u32 remote_tlb_flush;
ba1389b7 AK	152	};
ba1389b7 AK	153
6aa8b732	154	struct kvm {
11ec2804	155	struct mutex lock; /* protects everything except vcpus */
6d4e4c4f	156	struct mm_struct mm; / userspace tied to this vm */
e8207547 AK	157	int naliases;
e8207547 AK	158	struct kvm_mem_alias aliases[KVM_ALIAS_SLOTS];
6aa8b732	159	int nmemslots;
e0d62c7f IE	160	struct kvm_memory_slot memslots[KVM_MEMORY_SLOTS +
e0d62c7f IE	161	KVM_PRIVATE_MEM_SLOTS];
cea0f0e7 AK	162	/*
	163	* Hash table of struct kvm_mmu_page.
	164	*/
6aa8b732	165	struct list_head active_mmu_pages;
82ce2c96 IE	166	unsigned int n_free_mmu_pages;
	167	unsigned int n_requested_mmu_pages;
	168	unsigned int n_alloc_mmu_pages;
cea0f0e7	169	struct hlist_head mmu_page_hash[KVM_NUM_MMU_PAGES];
fb3f0f51	170	struct kvm_vcpu *vcpus[KVM_MAX_VCPUS];
133de902	171	struct list_head vm_list;
bccf2150	172	struct file *filp;
2eeb2e94	173	struct kvm_io_bus mmio_bus;
74906345	174	struct kvm_io_bus pio_bus;
85f455f7	175	struct kvm_pic *vpic;
1fd4f2a5	176	struct kvm_ioapic *vioapic;
932f72ad	177	int round_robin_prev_vcpu;
cbc94022	178	unsigned int tss_addr;
f78e0e2e	179	struct page *apic_access_page;
ba1389b7	180	struct kvm_vm_stat stat;
6aa8b732 AK	181	};
6aa8b732 AK	182
f0242478 RR	183	/* The guest did something we don't support. */
	184	#define pr_unimpl(vcpu, fmt, ...) \
	185	do { \
	186	if (printk_ratelimit()) \
	187	printk(KERN_ERR "kvm: %i: cpu%i " fmt, \
	188	current->tgid, (vcpu)->vcpu_id , ## __VA_ARGS__); \
d77c26fc	189	} while (0)
f0242478	190
6aa8b732 AK	191	#define kvm_printf(kvm, fmt ...) printk(KERN_DEBUG fmt)
	192	#define vcpu_printf(vcpu, fmt...) kvm_printf(vcpu->kvm, fmt)
	193
fb3f0f51 RR	194	int kvm_vcpu_init(struct kvm_vcpu vcpu, struct kvm kvm, unsigned id);
	195	void kvm_vcpu_uninit(struct kvm_vcpu *vcpu);
	196
313a3dc7 CO	197	void vcpu_load(struct kvm_vcpu *vcpu);
	198	void vcpu_put(struct kvm_vcpu *vcpu);
	199
e9b11c17 ZX	200	void decache_vcpus_on_cpu(int cpu);
e9b11c17 ZX	201
313a3dc7	202
f8c16bba	203	int kvm_init(void *opaque, unsigned int vcpu_size,
c16f862d	204	struct module *module);
cb498ea2	205	void kvm_exit(void);
6aa8b732	206
6aa8b732 AK	207	#define HPA_MSB ((sizeof(hpa_t) * 8) - 1)
	208	#define HPA_ERR_MASK ((hpa_t)1 << HPA_MSB)
	209	static inline int is_error_hpa(hpa_t hpa) { return hpa >> HPA_MSB; }
039576c0	210	struct page gva_to_page(struct kvm_vcpu vcpu, gva_t gva);
6aa8b732	211
cea7bb21	212	extern struct page *bad_page;
6aa8b732	213
cea7bb21	214	int is_error_page(struct page *page);
f9d46eb0	215	int kvm_is_error_hva(unsigned long addr);
210c7c4d IE	216	int kvm_set_memory_region(struct kvm *kvm,
	217	struct kvm_userspace_memory_region *mem,
	218	int user_alloc);
f78e0e2e SY	219	int __kvm_set_memory_region(struct kvm *kvm,
	220	struct kvm_userspace_memory_region *mem,
	221	int user_alloc);
0de10343 ZX	222	int kvm_arch_set_memory_region(struct kvm *kvm,
	223	struct kvm_userspace_memory_region *mem,
	224	struct kvm_memory_slot old,
	225	int user_alloc);
290fc38d	226	gfn_t unalias_gfn(struct kvm *kvm, gfn_t gfn);
954bbbc2	227	struct page gfn_to_page(struct kvm kvm, gfn_t gfn);
b4231d61 IE	228	void kvm_release_page_clean(struct page *page);
b4231d61 IE	229	void kvm_release_page_dirty(struct page *page);
195aefde IE	230	int kvm_read_guest_page(struct kvm kvm, gfn_t gfn, void data, int offset,
	231	int len);
	232	int kvm_read_guest(struct kvm kvm, gpa_t gpa, void data, unsigned long len);
	233	int kvm_write_guest_page(struct kvm kvm, gfn_t gfn, const void data,
	234	int offset, int len);
	235	int kvm_write_guest(struct kvm kvm, gpa_t gpa, const void data,
	236	unsigned long len);
	237	int kvm_clear_guest_page(struct kvm *kvm, gfn_t gfn, int offset, int len);
	238	int kvm_clear_guest(struct kvm *kvm, gpa_t gpa, unsigned long len);
6aa8b732	239	struct kvm_memory_slot gfn_to_memslot(struct kvm kvm, gfn_t gfn);
e0d62c7f	240	int kvm_is_visible_gfn(struct kvm *kvm, gfn_t gfn);
6aa8b732 AK	241	void mark_page_dirty(struct kvm *kvm, gfn_t gfn);
6aa8b732 AK	242
8776e519	243	void kvm_vcpu_block(struct kvm_vcpu *vcpu);
6aa8b732	244	void kvm_resched(struct kvm_vcpu *vcpu);
7702fd1f AK	245	void kvm_load_guest_fpu(struct kvm_vcpu *vcpu);
7702fd1f AK	246	void kvm_put_guest_fpu(struct kvm_vcpu *vcpu);
d9e368d6	247	void kvm_flush_remote_tlbs(struct kvm *kvm);
6aa8b732	248
043405e1 CO	249	long kvm_arch_dev_ioctl(struct file *filp,
043405e1 CO	250	unsigned int ioctl, unsigned long arg);
313a3dc7 CO	251	long kvm_arch_vcpu_ioctl(struct file *filp,
	252	unsigned int ioctl, unsigned long arg);
	253	void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu);
	254	void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu);
018d00d2 ZX	255
	256	int kvm_dev_ioctl_check_extension(long ext);
	257
5bb064dc ZX	258	int kvm_get_dirty_log(struct kvm *kvm,
	259	struct kvm_dirty_log log, int is_dirty);
	260	int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm,
	261	struct kvm_dirty_log *log);
	262
1fe779f8 CO	263	int kvm_vm_ioctl_set_memory_region(struct kvm *kvm,
	264	struct
	265	kvm_userspace_memory_region *mem,
	266	int user_alloc);
	267	long kvm_arch_vm_ioctl(struct file *filp,
	268	unsigned int ioctl, unsigned long arg);
	269	void kvm_arch_destroy_vm(struct kvm *kvm);
313a3dc7	270
d0752060 HB	271	int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu vcpu, struct kvm_fpu fpu);
	272	int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu vcpu, struct kvm_fpu fpu);
	273
8b006791 ZX	274	int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu,
	275	struct kvm_translation *tr);
	276
b6c7a5dc HB	277	int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu vcpu, struct kvm_regs regs);
	278	int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu vcpu, struct kvm_regs regs);
	279	int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu,
	280	struct kvm_sregs *sregs);
	281	int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
	282	struct kvm_sregs *sregs);
	283	int kvm_arch_vcpu_ioctl_debug_guest(struct kvm_vcpu *vcpu,
	284	struct kvm_debug_guest *dbg);
	285	int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu vcpu, struct kvm_run kvm_run);
	286
f8c16bba ZX	287	int kvm_arch_init(void *opaque);
f8c16bba ZX	288	void kvm_arch_exit(void);
043405e1	289
e9b11c17 ZX	290	int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu);
	291	void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu);
	292
	293	void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu);
	294	void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu);
	295	void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu);
	296	struct kvm_vcpu kvm_arch_vcpu_create(struct kvm kvm, unsigned int id);
26e5215f	297	int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu);
d40ccc62	298	void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu);
e9b11c17 ZX	299
	300	int kvm_arch_vcpu_reset(struct kvm_vcpu *vcpu);
	301	void kvm_arch_hardware_enable(void *garbage);
	302	void kvm_arch_hardware_disable(void *garbage);
	303	int kvm_arch_hardware_setup(void);
	304	void kvm_arch_hardware_unsetup(void);
	305	void kvm_arch_check_processor_compat(void *rtn);
1d737c8a	306	int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu);
e9b11c17	307
d19a9cd2 ZX	308	void kvm_free_physmem(struct kvm *kvm);
	309
	310	struct kvm *kvm_arch_create_vm(void);
	311	void kvm_arch_destroy_vm(struct kvm *kvm);
e9b11c17	312
682c59a3 ZX	313	int kvm_cpu_get_interrupt(struct kvm_vcpu *v);
	314	int kvm_cpu_has_interrupt(struct kvm_vcpu *v);
	315
d172fcd3 LV	316	static inline void kvm_guest_enter(void)
d172fcd3 LV	317	{
e56a7a28	318	account_system_vtime(current);
d172fcd3 LV	319	current->flags \|= PF_VCPU;
	320	}
	321
	322	static inline void kvm_guest_exit(void)
	323	{
e56a7a28	324	account_system_vtime(current);
d172fcd3 LV	325	current->flags &= ~PF_VCPU;
	326	}
	327
6aa8b732 AK	328	static inline int memslot_id(struct kvm kvm, struct kvm_memory_slot slot)
	329	{
	330	return slot - kvm->memslots;
	331	}
	332
1755fbcc AK	333	static inline gpa_t gfn_to_gpa(gfn_t gfn)
	334	{
	335	return (gpa_t)gfn << PAGE_SHIFT;
	336	}
6aa8b732	337
ba1389b7 AK	338	enum kvm_stat_kind {
	339	KVM_STAT_VM,
	340	KVM_STAT_VCPU,
	341	};
	342
417bc304 HB	343	struct kvm_stats_debugfs_item {
	344	const char *name;
	345	int offset;
ba1389b7	346	enum kvm_stat_kind kind;
417bc304 HB	347	struct dentry *dentry;
	348	};
	349	extern struct kvm_stats_debugfs_item debugfs_entries[];
	350
6aa8b732	351	#endif