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KVM: Remove the usage of page->private field by rmap
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / kvm / kvm.h
CommitLineData
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>
10#include <linux/list.h>
11#include <linux/mutex.h>
12#include <linux/spinlock.h>
06ff0d37
MR		 13#include <linux/signal.h>
14#include <linux/sched.h>
6aa8b732 15#include <linux/mm.h>
15ad7146 16#include <linux/preempt.h>
e8edc6e0 17#include <asm/signal.h>
6aa8b732 18
6aa8b732 19#include <linux/kvm.h>
102d8325 20#include <linux/kvm_para.h>
6aa8b732 21
f802a307
RR		 22#define CR3_PAE_RESERVED_BITS ((X86_CR3_PWT | X86_CR3_PCD) - 1)
23#define CR3_NONPAE_RESERVED_BITS ((PAGE_SIZE-1) & ~(X86_CR3_PWT | X86_CR3_PCD))
24#define CR3_L_MODE_RESERVED_BITS (CR3_NONPAE_RESERVED_BITS|0xFFFFFF0000000000ULL)
6aa8b732 25
6aa8b732 26#define KVM_GUEST_CR0_MASK \
707d92fa
RR		 27 (X86_CR0_PG | X86_CR0_PE | X86_CR0_WP | X86_CR0_NE \
28 | X86_CR0_NW | X86_CR0_CD)
6aa8b732 29#define KVM_VM_CR0_ALWAYS_ON \
707d92fa
RR		 30 (X86_CR0_PG | X86_CR0_PE | X86_CR0_WP | X86_CR0_NE | X86_CR0_TS \
31 | X86_CR0_MP)
6aa8b732 32#define KVM_GUEST_CR4_MASK \
66aee91a
RR		 33 (X86_CR4_VME | X86_CR4_PSE | X86_CR4_PAE | X86_CR4_PGE | X86_CR4_VMXE)
34#define KVM_PMODE_VM_CR4_ALWAYS_ON (X86_CR4_PAE | X86_CR4_VMXE)
35#define KVM_RMODE_VM_CR4_ALWAYS_ON (X86_CR4_VME | X86_CR4_PAE | X86_CR4_VMXE)
6aa8b732
AK		 36
37#define INVALID_PAGE (~(hpa_t)0)
38#define UNMAPPED_GVA (~(gpa_t)0)
39
ef9254df 40#define KVM_MAX_VCPUS 4
e8207547 41#define KVM_ALIAS_SLOTS 4
2e2c618d 42#define KVM_MEMORY_SLOTS 8
7494c0cc 43#define KVM_NUM_MMU_PAGES 1024
ebeace86
AK		 44#define KVM_MIN_FREE_MMU_PAGES 5
45#define KVM_REFILL_PAGES 25
06465c5a 46#define KVM_MAX_CPUID_ENTRIES 40
6aa8b732 47
6aa8b732 48#define DE_VECTOR 0
7aa81cc0 49#define UD_VECTOR 6
7807fa6c 50#define NM_VECTOR 7
6aa8b732
AK		 51#define DF_VECTOR 8
52#define TS_VECTOR 10
53#define NP_VECTOR 11
54#define SS_VECTOR 12
55#define GP_VECTOR 13
56#define PF_VECTOR 14
57
58#define SELECTOR_TI_MASK (1 << 2)
59#define SELECTOR_RPL_MASK 0x03
60
61#define IOPL_SHIFT 12
62
039576c0
AK		 63#define KVM_PIO_PAGE_OFFSET 1
64
d9e368d6
AK		 65/*
66 * vcpu->requests bit members
67 */
68#define KVM_TLB_FLUSH 0
69
6aa8b732
AK		 70/*
71 * Address types:
72 *
73 * gva - guest virtual address
74 * gpa - guest physical address
75 * gfn - guest frame number
76 * hva - host virtual address
77 * hpa - host physical address
78 * hfn - host frame number
79 */
80
81typedef unsigned long gva_t;
82typedef u64 gpa_t;
83typedef unsigned long gfn_t;
84
85typedef unsigned long hva_t;
86typedef u64 hpa_t;
87typedef unsigned long hfn_t;
88
cea0f0e7
AK		 89#define NR_PTE_CHAIN_ENTRIES 5
90
91struct kvm_pte_chain {
92 u64 *parent_ptes[NR_PTE_CHAIN_ENTRIES];
93 struct hlist_node link;
94};
95
96/*
97 * kvm_mmu_page_role, below, is defined as:
98 *
99 * bits 0:3 - total guest paging levels (2-4, or zero for real mode)
100 * bits 4:7 - page table level for this shadow (1-4)
101 * bits 8:9 - page table quadrant for 2-level guests
102 * bit 16 - "metaphysical" - gfn is not a real page (huge page/real mode)
d55e2cb2 103 * bits 17:19 - "access" - the user, writable, and nx bits of a huge page pde
cea0f0e7
AK		 104 */
105union kvm_mmu_page_role {
106 unsigned word;
107 struct {
108 unsigned glevels : 4;
109 unsigned level : 4;
110 unsigned quadrant : 2;
111 unsigned pad_for_nice_hex_output : 6;
112 unsigned metaphysical : 1;
d55e2cb2 113 unsigned hugepage_access : 3;
cea0f0e7
AK		 114 };
115};
116
6aa8b732
AK		 117struct kvm_mmu_page {
118 struct list_head link;
cea0f0e7
AK		 119 struct hlist_node hash_link;
120
121 /*
122 * The following two entries are used to key the shadow page in the
123 * hash table.
124 */
125 gfn_t gfn;
126 union kvm_mmu_page_role role;
127
47ad8e68 128 u64 *spt;
290fc38d
IE		 129 /* hold the gfn of each spte inside spt */
130 gfn_t *gfns;
6aa8b732
AK		 131 unsigned long slot_bitmap; /* One bit set per slot which has memory
132 * in this shadow page.
133 */
cea0f0e7 134 int multimapped; /* More than one parent_pte? */
3bb65a22 135 int root_count; /* Currently serving as active root */
cea0f0e7
AK		 136 union {
137 u64 *parent_pte; /* !multimapped */
138 struct hlist_head parent_ptes; /* multimapped, kvm_pte_chain */
139 };
6aa8b732
AK		 140};
141
6aa8b732 142struct kvm_vcpu;
c16f862d 143extern struct kmem_cache *kvm_vcpu_cache;
6aa8b732
AK		 144
145/*
146 * x86 supports 3 paging modes (4-level 64-bit, 3-level 64-bit, and 2-level
147 * 32-bit). The kvm_mmu structure abstracts the details of the current mmu
148 * mode.
149 */
150struct kvm_mmu {
151 void (*new_cr3)(struct kvm_vcpu *vcpu);
152 int (*page_fault)(struct kvm_vcpu *vcpu, gva_t gva, u32 err);
6aa8b732
AK		 153 void (*free)(struct kvm_vcpu *vcpu);
154 gpa_t (*gva_to_gpa)(struct kvm_vcpu *vcpu, gva_t gva);
c7addb90
AK		 155 void (*prefetch_page)(struct kvm_vcpu *vcpu,
156 struct kvm_mmu_page *page);
6aa8b732
AK		 157 hpa_t root_hpa;
158 int root_level;
159 int shadow_root_level;
17ac10ad
AK		 160
161 u64 *pae_root;
6aa8b732
AK		 162};
163
290fc38d 164#define KVM_NR_MEM_OBJS 40
714b93da
AK		 165
166struct kvm_mmu_memory_cache {
167 int nobjs;
168 void *objects[KVM_NR_MEM_OBJS];
169};
170
171/*
172 * We don't want allocation failures within the mmu code, so we preallocate
173 * enough memory for a single page fault in a cache.
174 */
6aa8b732
AK		 175struct kvm_guest_debug {
176 int enabled;
177 unsigned long bp[4];
178 int singlestep;
179};
180
181enum {
182 VCPU_REGS_RAX = 0,
183 VCPU_REGS_RCX = 1,
184 VCPU_REGS_RDX = 2,
185 VCPU_REGS_RBX = 3,
186 VCPU_REGS_RSP = 4,
187 VCPU_REGS_RBP = 5,
188 VCPU_REGS_RSI = 6,
189 VCPU_REGS_RDI = 7,
05b3e0c2 190#ifdef CONFIG_X86_64
6aa8b732
AK		 191 VCPU_REGS_R8 = 8,
192 VCPU_REGS_R9 = 9,
193 VCPU_REGS_R10 = 10,
194 VCPU_REGS_R11 = 11,
195 VCPU_REGS_R12 = 12,
196 VCPU_REGS_R13 = 13,
197 VCPU_REGS_R14 = 14,
198 VCPU_REGS_R15 = 15,
199#endif
200 NR_VCPU_REGS
201};
202
203enum {
204 VCPU_SREG_CS,
205 VCPU_SREG_DS,
206 VCPU_SREG_ES,
207 VCPU_SREG_FS,
208 VCPU_SREG_GS,
209 VCPU_SREG_SS,
210 VCPU_SREG_TR,
211 VCPU_SREG_LDTR,
212};
213
3427318f
LV		 214#include "x86_emulate.h"
215
039576c0
AK		 216struct kvm_pio_request {
217 unsigned long count;
218 int cur_count;
219 struct page *guest_pages[2];
220 unsigned guest_page_offset;
221 int in;
74906345 222 int port;
039576c0
AK		 223 int size;
224 int string;
225 int down;
226 int rep;
227};
228
1165f5fe
AK		 229struct kvm_stat {
230 u32 pf_fixed;
231 u32 pf_guest;
232 u32 tlb_flush;
233 u32 invlpg;
234
235 u32 exits;
236 u32 io_exits;
237 u32 mmio_exits;
238 u32 signal_exits;
239 u32 irq_window_exits;
240 u32 halt_exits;
b6958ce4 241 u32 halt_wakeup;
1165f5fe
AK		 242 u32 request_irq_exits;
243 u32 irq_exits;
e6adf283 244 u32 light_exits;
2cc51560 245 u32 efer_reload;
1165f5fe
AK		 246};
247
2eeb2e94
GH		 248struct kvm_io_device {
249 void (*read)(struct kvm_io_device *this,
250 gpa_t addr,
251 int len,
252 void *val);
253 void (*write)(struct kvm_io_device *this,
254 gpa_t addr,
255 int len,
256 const void *val);
257 int (*in_range)(struct kvm_io_device *this, gpa_t addr);
258 void (*destructor)(struct kvm_io_device *this);
259
260 void *private;
261};
262
263static inline void kvm_iodevice_read(struct kvm_io_device *dev,
264 gpa_t addr,
265 int len,
266 void *val)
267{
268 dev->read(dev, addr, len, val);
269}
270
271static inline void kvm_iodevice_write(struct kvm_io_device *dev,
272 gpa_t addr,
273 int len,
274 const void *val)
275{
276 dev->write(dev, addr, len, val);
277}
278
279static inline int kvm_iodevice_inrange(struct kvm_io_device *dev, gpa_t addr)
280{
281 return dev->in_range(dev, addr);
282}
283
284static inline void kvm_iodevice_destructor(struct kvm_io_device *dev)
285{
74906345
ED		 286 if (dev->destructor)
287 dev->destructor(dev);
2eeb2e94
GH		 288}
289
290/*
291 * It would be nice to use something smarter than a linear search, TBD...
292 * Thankfully we dont expect many devices to register (famous last words :),
293 * so until then it will suffice. At least its abstracted so we can change
294 * in one place.
295 */
296struct kvm_io_bus {
297 int dev_count;
298#define NR_IOBUS_DEVS 6
299 struct kvm_io_device *devs[NR_IOBUS_DEVS];
300};
301
302void kvm_io_bus_init(struct kvm_io_bus *bus);
303void kvm_io_bus_destroy(struct kvm_io_bus *bus);
304struct kvm_io_device *kvm_io_bus_find_dev(struct kvm_io_bus *bus, gpa_t addr);
305void kvm_io_bus_register_dev(struct kvm_io_bus *bus,
306 struct kvm_io_device *dev);
307
6aa8b732
AK		 308struct kvm_vcpu {
309 struct kvm *kvm;
15ad7146 310 struct preempt_notifier preempt_notifier;
dad3795d 311 int vcpu_id;
6aa8b732
AK		 312 struct mutex mutex;
313 int cpu;
0cc5064d 314 u64 host_tsc;
9a2bb7f4 315 struct kvm_run *run;
c1150d8c 316 int interrupt_window_open;
d9e368d6
AK		 317 int guest_mode;
318 unsigned long requests;
6aa8b732 319 unsigned long irq_summary; /* bit vector: 1 per word in irq_pending */
9eb829ce 320 DECLARE_BITMAP(irq_pending, KVM_NR_INTERRUPTS);
6aa8b732
AK		 321 unsigned long regs[NR_VCPU_REGS]; /* for rsp: vcpu_load_rsp_rip() */
322 unsigned long rip; /* needs vcpu_load_rsp_rip() */
323
324 unsigned long cr0;
325 unsigned long cr2;
326 unsigned long cr3;
327 unsigned long cr4;
328 unsigned long cr8;
1342d353 329 u64 pdptrs[4]; /* pae */
6aa8b732
AK		 330 u64 shadow_efer;
331 u64 apic_base;
97222cc8 332 struct kvm_lapic *apic; /* kernel irqchip context */
c5ec1534
HQ		 333#define VCPU_MP_STATE_RUNNABLE 0
334#define VCPU_MP_STATE_UNINITIALIZED 1
335#define VCPU_MP_STATE_INIT_RECEIVED 2
336#define VCPU_MP_STATE_SIPI_RECEIVED 3
337#define VCPU_MP_STATE_HALTED 4
338 int mp_state;
339 int sipi_vector;
6f00e68f 340 u64 ia32_misc_enable_msr;
6aa8b732 341
6aa8b732
AK		 342 struct kvm_mmu mmu;
343
714b93da
AK		 344 struct kvm_mmu_memory_cache mmu_pte_chain_cache;
345 struct kvm_mmu_memory_cache mmu_rmap_desc_cache;
d3d25b04
AK		 346 struct kvm_mmu_memory_cache mmu_page_cache;
347 struct kvm_mmu_memory_cache mmu_page_header_cache;
714b93da 348
86a5ba02
AK		 349 gfn_t last_pt_write_gfn;
350 int last_pt_write_count;
12b7d28f 351 u64 *last_pte_updated;
86a5ba02 352
6aa8b732
AK		 353 struct kvm_guest_debug guest_debug;
354
b114b080
RR		 355 struct i387_fxsave_struct host_fx_image;
356 struct i387_fxsave_struct guest_fx_image;
7807fa6c 357 int fpu_active;
7702fd1f 358 int guest_fpu_loaded;
6aa8b732
AK		 359
360 int mmio_needed;
361 int mmio_read_completed;
362 int mmio_is_write;
363 int mmio_size;
364 unsigned char mmio_data[8];
365 gpa_t mmio_phys_addr;
e7df56e4 366 gva_t mmio_fault_cr2;
039576c0
AK		 367 struct kvm_pio_request pio;
368 void *pio_data;
b6958ce4 369 wait_queue_head_t wq;
6aa8b732 370
1961d276
AK		 371 int sigset_active;
372 sigset_t sigset;
373
1165f5fe
AK		 374 struct kvm_stat stat;
375
6aa8b732
AK		 376 struct {
377 int active;
378 u8 save_iopl;
379 struct kvm_save_segment {
380 u16 selector;
381 unsigned long base;
382 u32 limit;
383 u32 ar;
384 } tr, es, ds, fs, gs;
385 } rmode;
72d6e5a0 386 int halt_request; /* real mode on Intel only */
06465c5a
AK		 387
388 int cpuid_nent;
389 struct kvm_cpuid_entry cpuid_entries[KVM_MAX_CPUID_ENTRIES];
3427318f
LV		 390
391 /* emulate context */
392
393 struct x86_emulate_ctxt emulate_ctxt;
6aa8b732
AK		 394};
395
e8207547
AK		 396struct kvm_mem_alias {
397 gfn_t base_gfn;
398 unsigned long npages;
399 gfn_t target_gfn;
400};
401
6aa8b732
AK		 402struct kvm_memory_slot {
403 gfn_t base_gfn;
404 unsigned long npages;
405 unsigned long flags;
406 struct page **phys_mem;
290fc38d 407 unsigned long *rmap;
6aa8b732
AK		 408 unsigned long *dirty_bitmap;
409};
410
411struct kvm {
11ec2804 412 struct mutex lock; /* protects everything except vcpus */
e8207547
AK		 413 int naliases;
414 struct kvm_mem_alias aliases[KVM_ALIAS_SLOTS];
6aa8b732
AK		 415 int nmemslots;
416 struct kvm_memory_slot memslots[KVM_MEMORY_SLOTS];
cea0f0e7
AK		 417 /*
418 * Hash table of struct kvm_mmu_page.
419 */
6aa8b732 420 struct list_head active_mmu_pages;
ebeace86 421 int n_free_mmu_pages;
cea0f0e7 422 struct hlist_head mmu_page_hash[KVM_NUM_MMU_PAGES];
fb3f0f51 423 struct kvm_vcpu *vcpus[KVM_MAX_VCPUS];
cd4a4e53 424 unsigned long rmap_overflow;
133de902 425 struct list_head vm_list;
bccf2150 426 struct file *filp;
2eeb2e94 427 struct kvm_io_bus mmio_bus;
74906345 428 struct kvm_io_bus pio_bus;
85f455f7 429 struct kvm_pic *vpic;
1fd4f2a5 430 struct kvm_ioapic *vioapic;
932f72ad 431 int round_robin_prev_vcpu;
6aa8b732
AK		 432};
433
85f455f7
ED		 434static inline struct kvm_pic *pic_irqchip(struct kvm *kvm)
435{
436 return kvm->vpic;
437}
438
1fd4f2a5
ED		 439static inline struct kvm_ioapic *ioapic_irqchip(struct kvm *kvm)
440{
441 return kvm->vioapic;
442}
443
85f455f7
ED		 444static inline int irqchip_in_kernel(struct kvm *kvm)
445{
446 return pic_irqchip(kvm) != 0;
447}
448
6aa8b732
AK		 449struct descriptor_table {
450 u16 limit;
451 unsigned long base;
452} __attribute__((packed));
453
cbdd1bea 454struct kvm_x86_ops {
6aa8b732
AK		 455 int (*cpu_has_kvm_support)(void); /* __init */
456 int (*disabled_by_bios)(void); /* __init */
457 void (*hardware_enable)(void *dummy); /* __init */
458 void (*hardware_disable)(void *dummy);
002c7f7c 459 void (*check_processor_compatibility)(void *rtn);
6aa8b732
AK		 460 int (*hardware_setup)(void); /* __init */
461 void (*hardware_unsetup)(void); /* __exit */
462
fb3f0f51
RR		 463 /* Create, but do not attach this VCPU */
464 struct kvm_vcpu *(*vcpu_create)(struct kvm *kvm, unsigned id);
6aa8b732 465 void (*vcpu_free)(struct kvm_vcpu *vcpu);
04d2cc77 466 void (*vcpu_reset)(struct kvm_vcpu *vcpu);
6aa8b732 467
04d2cc77 468 void (*prepare_guest_switch)(struct kvm_vcpu *vcpu);
15ad7146 469 void (*vcpu_load)(struct kvm_vcpu *vcpu, int cpu);
6aa8b732 470 void (*vcpu_put)(struct kvm_vcpu *vcpu);
774c47f1 471 void (*vcpu_decache)(struct kvm_vcpu *vcpu);
6aa8b732
AK		 472
473 int (*set_guest_debug)(struct kvm_vcpu *vcpu,
474 struct kvm_debug_guest *dbg);
04d2cc77 475 void (*guest_debug_pre)(struct kvm_vcpu *vcpu);
6aa8b732
AK		 476 int (*get_msr)(struct kvm_vcpu *vcpu, u32 msr_index, u64 *pdata);
477 int (*set_msr)(struct kvm_vcpu *vcpu, u32 msr_index, u64 data);
478 u64 (*get_segment_base)(struct kvm_vcpu *vcpu, int seg);
479 void (*get_segment)(struct kvm_vcpu *vcpu,
480 struct kvm_segment *var, int seg);
481 void (*set_segment)(struct kvm_vcpu *vcpu,
482 struct kvm_segment *var, int seg);
6aa8b732 483 void (*get_cs_db_l_bits)(struct kvm_vcpu *vcpu, int *db, int *l);
25c4c276 484 void (*decache_cr4_guest_bits)(struct kvm_vcpu *vcpu);
6aa8b732 485 void (*set_cr0)(struct kvm_vcpu *vcpu, unsigned long cr0);
6aa8b732
AK		 486 void (*set_cr3)(struct kvm_vcpu *vcpu, unsigned long cr3);
487 void (*set_cr4)(struct kvm_vcpu *vcpu, unsigned long cr4);
488 void (*set_efer)(struct kvm_vcpu *vcpu, u64 efer);
489 void (*get_idt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt);
490 void (*set_idt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt);
491 void (*get_gdt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt);
492 void (*set_gdt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt);
493 unsigned long (*get_dr)(struct kvm_vcpu *vcpu, int dr);
494 void (*set_dr)(struct kvm_vcpu *vcpu, int dr, unsigned long value,
495 int *exception);
496 void (*cache_regs)(struct kvm_vcpu *vcpu);
497 void (*decache_regs)(struct kvm_vcpu *vcpu);
498 unsigned long (*get_rflags)(struct kvm_vcpu *vcpu);
499 void (*set_rflags)(struct kvm_vcpu *vcpu, unsigned long rflags);
500
6aa8b732
AK		 501 void (*tlb_flush)(struct kvm_vcpu *vcpu);
502 void (*inject_page_fault)(struct kvm_vcpu *vcpu,
503 unsigned long addr, u32 err_code);
504
505 void (*inject_gp)(struct kvm_vcpu *vcpu, unsigned err_code);
506
04d2cc77
AK		 507 void (*run)(struct kvm_vcpu *vcpu, struct kvm_run *run);
508 int (*handle_exit)(struct kvm_run *run, struct kvm_vcpu *vcpu);
6aa8b732 509 void (*skip_emulated_instruction)(struct kvm_vcpu *vcpu);
102d8325
IM		 510 void (*patch_hypercall)(struct kvm_vcpu *vcpu,
511 unsigned char *hypercall_addr);
2a8067f1
ED		 512 int (*get_irq)(struct kvm_vcpu *vcpu);
513 void (*set_irq)(struct kvm_vcpu *vcpu, int vec);
04d2cc77
AK		 514 void (*inject_pending_irq)(struct kvm_vcpu *vcpu);
515 void (*inject_pending_vectors)(struct kvm_vcpu *vcpu,
516 struct kvm_run *run);
6aa8b732
AK		 517};
518
cbdd1bea 519extern struct kvm_x86_ops *kvm_x86_ops;
6aa8b732 520
f0242478
RR		 521/* The guest did something we don't support. */
522#define pr_unimpl(vcpu, fmt, ...) \
523 do { \
524 if (printk_ratelimit()) \
525 printk(KERN_ERR "kvm: %i: cpu%i " fmt, \
526 current->tgid, (vcpu)->vcpu_id , ## __VA_ARGS__); \
527 } while(0)
528
6aa8b732
AK		 529#define kvm_printf(kvm, fmt ...) printk(KERN_DEBUG fmt)
530#define vcpu_printf(vcpu, fmt...) kvm_printf(vcpu->kvm, fmt)
531
fb3f0f51
RR		 532int kvm_vcpu_init(struct kvm_vcpu *vcpu, struct kvm *kvm, unsigned id);
533void kvm_vcpu_uninit(struct kvm_vcpu *vcpu);
534
cbdd1bea 535int kvm_init_x86(struct kvm_x86_ops *ops, unsigned int vcpu_size,
c16f862d 536 struct module *module);
cbdd1bea 537void kvm_exit_x86(void);
6aa8b732 538
b5a33a75
AK		 539int kvm_mmu_module_init(void);
540void kvm_mmu_module_exit(void);
541
6aa8b732 542void kvm_mmu_destroy(struct kvm_vcpu *vcpu);
8018c27b
IM		 543int kvm_mmu_create(struct kvm_vcpu *vcpu);
544int kvm_mmu_setup(struct kvm_vcpu *vcpu);
c7addb90 545void kvm_mmu_set_nonpresent_ptes(u64 trap_pte, u64 notrap_pte);
6aa8b732
AK		 546
547int kvm_mmu_reset_context(struct kvm_vcpu *vcpu);
90cb0529
AK		 548void kvm_mmu_slot_remove_write_access(struct kvm *kvm, int slot);
549void kvm_mmu_zap_all(struct kvm *kvm);
6aa8b732
AK		 550
551hpa_t gpa_to_hpa(struct kvm_vcpu *vcpu, gpa_t gpa);
552#define HPA_MSB ((sizeof(hpa_t) * 8) - 1)
553#define HPA_ERR_MASK ((hpa_t)1 << HPA_MSB)
554static inline int is_error_hpa(hpa_t hpa) { return hpa >> HPA_MSB; }
555hpa_t gva_to_hpa(struct kvm_vcpu *vcpu, gva_t gva);
039576c0 556struct page *gva_to_page(struct kvm_vcpu *vcpu, gva_t gva);
6aa8b732 557
6aa8b732
AK		 558extern hpa_t bad_page_address;
559
290fc38d 560gfn_t unalias_gfn(struct kvm *kvm, gfn_t gfn);
954bbbc2 561struct page *gfn_to_page(struct kvm *kvm, gfn_t gfn);
6aa8b732
AK		 562struct kvm_memory_slot *gfn_to_memslot(struct kvm *kvm, gfn_t gfn);
563void mark_page_dirty(struct kvm *kvm, gfn_t gfn);
564
565enum emulation_result {
566 EMULATE_DONE, /* no further processing */
567 EMULATE_DO_MMIO, /* kvm_run filled with mmio request */
568 EMULATE_FAIL, /* can't emulate this instruction */
569};
570
571int emulate_instruction(struct kvm_vcpu *vcpu, struct kvm_run *run,
3427318f 572 unsigned long cr2, u16 error_code, int no_decode);
054b1369 573void kvm_report_emulation_failure(struct kvm_vcpu *cvpu, const char *context);
6aa8b732
AK		 574void realmode_lgdt(struct kvm_vcpu *vcpu, u16 size, unsigned long address);
575void realmode_lidt(struct kvm_vcpu *vcpu, u16 size, unsigned long address);
576void realmode_lmsw(struct kvm_vcpu *vcpu, unsigned long msw,
577 unsigned long *rflags);
578
579unsigned long realmode_get_cr(struct kvm_vcpu *vcpu, int cr);
580void realmode_set_cr(struct kvm_vcpu *vcpu, int cr, unsigned long value,
581 unsigned long *rflags);
35f3f286
AK		 582int kvm_get_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 *data);
583int kvm_set_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 data);
6aa8b732
AK		 584
585struct x86_emulate_ctxt;
586
3090dd73
LV		 587int kvm_emulate_pio (struct kvm_vcpu *vcpu, struct kvm_run *run, int in,
588 int size, unsigned port);
589int kvm_emulate_pio_string(struct kvm_vcpu *vcpu, struct kvm_run *run, int in,
590 int size, unsigned long count, int down,
591 gva_t address, int rep, unsigned port);
06465c5a 592void kvm_emulate_cpuid(struct kvm_vcpu *vcpu);
d3bef15f 593int kvm_emulate_halt(struct kvm_vcpu *vcpu);
6aa8b732
AK		 594int emulate_invlpg(struct kvm_vcpu *vcpu, gva_t address);
595int emulate_clts(struct kvm_vcpu *vcpu);
596int emulator_get_dr(struct x86_emulate_ctxt* ctxt, int dr,
597 unsigned long *dest);
598int emulator_set_dr(struct x86_emulate_ctxt *ctxt, int dr,
599 unsigned long value);
600
601void set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0);
602void set_cr3(struct kvm_vcpu *vcpu, unsigned long cr0);
603void set_cr4(struct kvm_vcpu *vcpu, unsigned long cr0);
604void set_cr8(struct kvm_vcpu *vcpu, unsigned long cr0);
7017fc3d 605unsigned long get_cr8(struct kvm_vcpu *vcpu);
6aa8b732 606void lmsw(struct kvm_vcpu *vcpu, unsigned long msw);
1747fb71 607void kvm_get_cs_db_l_bits(struct kvm_vcpu *vcpu, int *db, int *l);
6aa8b732 608
3bab1f5d
AK		 609int kvm_get_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata);
610int kvm_set_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 data);
6aa8b732
AK		 611
612void fx_init(struct kvm_vcpu *vcpu);
613
6aa8b732 614void kvm_resched(struct kvm_vcpu *vcpu);
7702fd1f
AK		 615void kvm_load_guest_fpu(struct kvm_vcpu *vcpu);
616void kvm_put_guest_fpu(struct kvm_vcpu *vcpu);
d9e368d6 617void kvm_flush_remote_tlbs(struct kvm *kvm);
6aa8b732 618
e7d5d76c
LV		 619int emulator_read_std(unsigned long addr,
620 void *val,
621 unsigned int bytes,
622 struct kvm_vcpu *vcpu);
623int emulator_write_emulated(unsigned long addr,
624 const void *val,
625 unsigned int bytes,
626 struct kvm_vcpu *vcpu);
6aa8b732
AK		 627
628unsigned long segment_base(u16 selector);
629
09072daf 630void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa,
fe551881 631 const u8 *new, int bytes);
a436036b 632int kvm_mmu_unprotect_page_virt(struct kvm_vcpu *vcpu, gva_t gva);
22d95b12 633void __kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu);
17c3ba9d
AK		 634int kvm_mmu_load(struct kvm_vcpu *vcpu);
635void kvm_mmu_unload(struct kvm_vcpu *vcpu);
ebeace86 636
7aa81cc0
AL		 637int kvm_emulate_hypercall(struct kvm_vcpu *vcpu);
638
639int kvm_fix_hypercall(struct kvm_vcpu *vcpu);
270fd9b9 640
d172fcd3
LV		 641static inline void kvm_guest_enter(void)
642{
643 current->flags |= PF_VCPU;
644}
645
646static inline void kvm_guest_exit(void)
647{
648 current->flags &= ~PF_VCPU;
649}
650
ebeace86
AK		 651static inline int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t gva,
652 u32 error_code)
653{
ebeace86
AK		 654 return vcpu->mmu.page_fault(vcpu, gva, error_code);
655}
da4a00f0 656
22d95b12
AK		 657static inline void kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu)
658{
659 if (unlikely(vcpu->kvm->n_free_mmu_pages < KVM_MIN_FREE_MMU_PAGES))
660 __kvm_mmu_free_some_pages(vcpu);
661}
662
17c3ba9d
AK		 663static inline int kvm_mmu_reload(struct kvm_vcpu *vcpu)
664{
665 if (likely(vcpu->mmu.root_hpa != INVALID_PAGE))
666 return 0;
667
668 return kvm_mmu_load(vcpu);
669}
670
a9058ecd
AK		 671static inline int is_long_mode(struct kvm_vcpu *vcpu)
672{
673#ifdef CONFIG_X86_64
674 return vcpu->shadow_efer & EFER_LME;
675#else
676 return 0;
677#endif
678}
679
6aa8b732
AK		 680static inline int is_pae(struct kvm_vcpu *vcpu)
681{
66aee91a 682 return vcpu->cr4 & X86_CR4_PAE;
6aa8b732
AK		 683}
684
685static inline int is_pse(struct kvm_vcpu *vcpu)
686{
66aee91a 687 return vcpu->cr4 & X86_CR4_PSE;
6aa8b732
AK		 688}
689
690static inline int is_paging(struct kvm_vcpu *vcpu)
691{
707d92fa 692 return vcpu->cr0 & X86_CR0_PG;
6aa8b732
AK		 693}
694
695static inline int memslot_id(struct kvm *kvm, struct kvm_memory_slot *slot)
696{
697 return slot - kvm->memslots;
698}
699
700static inline struct kvm_mmu_page *page_header(hpa_t shadow_page)
701{
702 struct page *page = pfn_to_page(shadow_page >> PAGE_SHIFT);
703
5972e953 704 return (struct kvm_mmu_page *)page_private(page);
6aa8b732
AK		 705}
706
707static inline u16 read_fs(void)
708{
709 u16 seg;
710 asm ("mov %%fs, %0" : "=g"(seg));
711 return seg;
712}
713
714static inline u16 read_gs(void)
715{
716 u16 seg;
717 asm ("mov %%gs, %0" : "=g"(seg));
718 return seg;
719}
720
721static inline u16 read_ldt(void)
722{
723 u16 ldt;
724 asm ("sldt %0" : "=g"(ldt));
725 return ldt;
726}
727
728static inline void load_fs(u16 sel)
729{
730 asm ("mov %0, %%fs" : : "rm"(sel));
731}
732
733static inline void load_gs(u16 sel)
734{
735 asm ("mov %0, %%gs" : : "rm"(sel));
736}
737
738#ifndef load_ldt
739static inline void load_ldt(u16 sel)
740{
a0610ddf 741 asm ("lldt %0" : : "rm"(sel));
6aa8b732
AK		 742}
743#endif
744
745static inline void get_idt(struct descriptor_table *table)
746{
747 asm ("sidt %0" : "=m"(*table));
748}
749
750static inline void get_gdt(struct descriptor_table *table)
751{
752 asm ("sgdt %0" : "=m"(*table));
753}
754
755static inline unsigned long read_tr_base(void)
756{
757 u16 tr;
758 asm ("str %0" : "=g"(tr));
759 return segment_base(tr);
760}
761
05b3e0c2 762#ifdef CONFIG_X86_64
6aa8b732
AK		 763static inline unsigned long read_msr(unsigned long msr)
764{
765 u64 value;
766
767 rdmsrl(msr, value);
768 return value;
769}
770#endif
771
b114b080 772static inline void fx_save(struct i387_fxsave_struct *image)
6aa8b732
AK		 773{
774 asm ("fxsave (%0)":: "r" (image));
775}
776
b114b080 777static inline void fx_restore(struct i387_fxsave_struct *image)
6aa8b732
AK		 778{
779 asm ("fxrstor (%0)":: "r" (image));
780}
781
782static inline void fpu_init(void)
783{
784 asm ("finit");
785}
786
787static inline u32 get_rdx_init_val(void)
788{
789 return 0x600; /* P6 family */
790}
791
792#define ASM_VMX_VMCLEAR_RAX ".byte 0x66, 0x0f, 0xc7, 0x30"
793#define ASM_VMX_VMLAUNCH ".byte 0x0f, 0x01, 0xc2"
794#define ASM_VMX_VMRESUME ".byte 0x0f, 0x01, 0xc3"
795#define ASM_VMX_VMPTRLD_RAX ".byte 0x0f, 0xc7, 0x30"
796#define ASM_VMX_VMREAD_RDX_RAX ".byte 0x0f, 0x78, 0xd0"
797#define ASM_VMX_VMWRITE_RAX_RDX ".byte 0x0f, 0x79, 0xd0"
798#define ASM_VMX_VMWRITE_RSP_RDX ".byte 0x0f, 0x79, 0xd4"
799#define ASM_VMX_VMXOFF ".byte 0x0f, 0x01, 0xc4"
800#define ASM_VMX_VMXON_RAX ".byte 0xf3, 0x0f, 0xc7, 0x30"
801
802#define MSR_IA32_TIME_STAMP_COUNTER 0x010
803
804#define TSS_IOPB_BASE_OFFSET 0x66
805#define TSS_BASE_SIZE 0x68
806#define TSS_IOPB_SIZE (65536 / 8)
807#define TSS_REDIRECTION_SIZE (256 / 8)
808#define RMODE_TSS_SIZE (TSS_BASE_SIZE + TSS_REDIRECTION_SIZE + TSS_IOPB_SIZE + 1)
809
6aa8b732 810#endif
kernel source for telekom puls (alcatel/mediatek)