projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
KVM: Remove kvm_{read,write}_guest()
[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
6aa8b732 42#define KVM_MEMORY_SLOTS 4
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
AK		 47
48#define FX_IMAGE_SIZE 512
49#define FX_IMAGE_ALIGN 16
50#define FX_BUF_SIZE (2 * FX_IMAGE_SIZE + FX_IMAGE_ALIGN)
51
52#define DE_VECTOR 0
7807fa6c 53#define NM_VECTOR 7
6aa8b732
AK		 54#define DF_VECTOR 8
55#define TS_VECTOR 10
56#define NP_VECTOR 11
57#define SS_VECTOR 12
58#define GP_VECTOR 13
59#define PF_VECTOR 14
60
61#define SELECTOR_TI_MASK (1 << 2)
62#define SELECTOR_RPL_MASK 0x03
63
64#define IOPL_SHIFT 12
65
039576c0
AK		 66#define KVM_PIO_PAGE_OFFSET 1
67
d9e368d6
AK		 68/*
69 * vcpu->requests bit members
70 */
71#define KVM_TLB_FLUSH 0
72
6aa8b732
AK		 73/*
74 * Address types:
75 *
76 * gva - guest virtual address
77 * gpa - guest physical address
78 * gfn - guest frame number
79 * hva - host virtual address
80 * hpa - host physical address
81 * hfn - host frame number
82 */
83
84typedef unsigned long gva_t;
85typedef u64 gpa_t;
86typedef unsigned long gfn_t;
87
88typedef unsigned long hva_t;
89typedef u64 hpa_t;
90typedef unsigned long hfn_t;
91
cea0f0e7
AK		 92#define NR_PTE_CHAIN_ENTRIES 5
93
94struct kvm_pte_chain {
95 u64 *parent_ptes[NR_PTE_CHAIN_ENTRIES];
96 struct hlist_node link;
97};
98
99/*
100 * kvm_mmu_page_role, below, is defined as:
101 *
102 * bits 0:3 - total guest paging levels (2-4, or zero for real mode)
103 * bits 4:7 - page table level for this shadow (1-4)
104 * bits 8:9 - page table quadrant for 2-level guests
105 * bit 16 - "metaphysical" - gfn is not a real page (huge page/real mode)
d55e2cb2 106 * bits 17:19 - "access" - the user, writable, and nx bits of a huge page pde
cea0f0e7
AK		 107 */
108union kvm_mmu_page_role {
109 unsigned word;
110 struct {
111 unsigned glevels : 4;
112 unsigned level : 4;
113 unsigned quadrant : 2;
114 unsigned pad_for_nice_hex_output : 6;
115 unsigned metaphysical : 1;
d55e2cb2 116 unsigned hugepage_access : 3;
cea0f0e7
AK		 117 };
118};
119
6aa8b732
AK		 120struct kvm_mmu_page {
121 struct list_head link;
cea0f0e7
AK		 122 struct hlist_node hash_link;
123
124 /*
125 * The following two entries are used to key the shadow page in the
126 * hash table.
127 */
128 gfn_t gfn;
129 union kvm_mmu_page_role role;
130
47ad8e68 131 u64 *spt;
6aa8b732
AK		 132 unsigned long slot_bitmap; /* One bit set per slot which has memory
133 * in this shadow page.
134 */
cea0f0e7 135 int multimapped; /* More than one parent_pte? */
3bb65a22 136 int root_count; /* Currently serving as active root */
cea0f0e7
AK		 137 union {
138 u64 *parent_pte; /* !multimapped */
139 struct hlist_head parent_ptes; /* multimapped, kvm_pte_chain */
140 };
6aa8b732
AK		 141};
142
6aa8b732
AK		 143struct kvm_vcpu;
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);
155 hpa_t root_hpa;
156 int root_level;
157 int shadow_root_level;
17ac10ad
AK		 158
159 u64 *pae_root;
6aa8b732
AK		 160};
161
714b93da
AK		 162#define KVM_NR_MEM_OBJS 20
163
164struct kvm_mmu_memory_cache {
165 int nobjs;
166 void *objects[KVM_NR_MEM_OBJS];
167};
168
169/*
170 * We don't want allocation failures within the mmu code, so we preallocate
171 * enough memory for a single page fault in a cache.
172 */
6aa8b732
AK		 173struct kvm_guest_debug {
174 int enabled;
175 unsigned long bp[4];
176 int singlestep;
177};
178
179enum {
180 VCPU_REGS_RAX = 0,
181 VCPU_REGS_RCX = 1,
182 VCPU_REGS_RDX = 2,
183 VCPU_REGS_RBX = 3,
184 VCPU_REGS_RSP = 4,
185 VCPU_REGS_RBP = 5,
186 VCPU_REGS_RSI = 6,
187 VCPU_REGS_RDI = 7,
05b3e0c2 188#ifdef CONFIG_X86_64
6aa8b732
AK		 189 VCPU_REGS_R8 = 8,
190 VCPU_REGS_R9 = 9,
191 VCPU_REGS_R10 = 10,
192 VCPU_REGS_R11 = 11,
193 VCPU_REGS_R12 = 12,
194 VCPU_REGS_R13 = 13,
195 VCPU_REGS_R14 = 14,
196 VCPU_REGS_R15 = 15,
197#endif
198 NR_VCPU_REGS
199};
200
201enum {
202 VCPU_SREG_CS,
203 VCPU_SREG_DS,
204 VCPU_SREG_ES,
205 VCPU_SREG_FS,
206 VCPU_SREG_GS,
207 VCPU_SREG_SS,
208 VCPU_SREG_TR,
209 VCPU_SREG_LDTR,
210};
211
039576c0
AK		 212struct kvm_pio_request {
213 unsigned long count;
214 int cur_count;
215 struct page *guest_pages[2];
216 unsigned guest_page_offset;
217 int in;
74906345 218 int port;
039576c0
AK		 219 int size;
220 int string;
221 int down;
222 int rep;
223};
224
1165f5fe
AK		 225struct kvm_stat {
226 u32 pf_fixed;
227 u32 pf_guest;
228 u32 tlb_flush;
229 u32 invlpg;
230
231 u32 exits;
232 u32 io_exits;
233 u32 mmio_exits;
234 u32 signal_exits;
235 u32 irq_window_exits;
236 u32 halt_exits;
237 u32 request_irq_exits;
238 u32 irq_exits;
e6adf283 239 u32 light_exits;
2cc51560 240 u32 efer_reload;
1165f5fe
AK		 241};
242
2eeb2e94
GH		 243struct kvm_io_device {
244 void (*read)(struct kvm_io_device *this,
245 gpa_t addr,
246 int len,
247 void *val);
248 void (*write)(struct kvm_io_device *this,
249 gpa_t addr,
250 int len,
251 const void *val);
252 int (*in_range)(struct kvm_io_device *this, gpa_t addr);
253 void (*destructor)(struct kvm_io_device *this);
254
255 void *private;
256};
257
258static inline void kvm_iodevice_read(struct kvm_io_device *dev,
259 gpa_t addr,
260 int len,
261 void *val)
262{
263 dev->read(dev, addr, len, val);
264}
265
266static inline void kvm_iodevice_write(struct kvm_io_device *dev,
267 gpa_t addr,
268 int len,
269 const void *val)
270{
271 dev->write(dev, addr, len, val);
272}
273
274static inline int kvm_iodevice_inrange(struct kvm_io_device *dev, gpa_t addr)
275{
276 return dev->in_range(dev, addr);
277}
278
279static inline void kvm_iodevice_destructor(struct kvm_io_device *dev)
280{
74906345
ED		 281 if (dev->destructor)
282 dev->destructor(dev);
2eeb2e94
GH		 283}
284
285/*
286 * It would be nice to use something smarter than a linear search, TBD...
287 * Thankfully we dont expect many devices to register (famous last words :),
288 * so until then it will suffice. At least its abstracted so we can change
289 * in one place.
290 */
291struct kvm_io_bus {
292 int dev_count;
293#define NR_IOBUS_DEVS 6
294 struct kvm_io_device *devs[NR_IOBUS_DEVS];
295};
296
297void kvm_io_bus_init(struct kvm_io_bus *bus);
298void kvm_io_bus_destroy(struct kvm_io_bus *bus);
299struct kvm_io_device *kvm_io_bus_find_dev(struct kvm_io_bus *bus, gpa_t addr);
300void kvm_io_bus_register_dev(struct kvm_io_bus *bus,
301 struct kvm_io_device *dev);
302
6aa8b732
AK		 303struct kvm_vcpu {
304 struct kvm *kvm;
15ad7146 305 struct preempt_notifier preempt_notifier;
dad3795d 306 int vcpu_id;
6aa8b732
AK		 307 struct mutex mutex;
308 int cpu;
0cc5064d 309 u64 host_tsc;
9a2bb7f4 310 struct kvm_run *run;
c1150d8c 311 int interrupt_window_open;
d9e368d6
AK		 312 int guest_mode;
313 unsigned long requests;
6aa8b732 314 unsigned long irq_summary; /* bit vector: 1 per word in irq_pending */
9eb829ce 315 DECLARE_BITMAP(irq_pending, KVM_NR_INTERRUPTS);
6aa8b732
AK		 316 unsigned long regs[NR_VCPU_REGS]; /* for rsp: vcpu_load_rsp_rip() */
317 unsigned long rip; /* needs vcpu_load_rsp_rip() */
318
319 unsigned long cr0;
320 unsigned long cr2;
321 unsigned long cr3;
102d8325
IM		 322 gpa_t para_state_gpa;
323 struct page *para_state_page;
324 gpa_t hypercall_gpa;
6aa8b732
AK		 325 unsigned long cr4;
326 unsigned long cr8;
1342d353 327 u64 pdptrs[4]; /* pae */
6aa8b732
AK		 328 u64 shadow_efer;
329 u64 apic_base;
6f00e68f 330 u64 ia32_misc_enable_msr;
6aa8b732 331
6aa8b732
AK		 332 struct kvm_mmu mmu;
333
714b93da
AK		 334 struct kvm_mmu_memory_cache mmu_pte_chain_cache;
335 struct kvm_mmu_memory_cache mmu_rmap_desc_cache;
d3d25b04
AK		 336 struct kvm_mmu_memory_cache mmu_page_cache;
337 struct kvm_mmu_memory_cache mmu_page_header_cache;
714b93da 338
86a5ba02
AK		 339 gfn_t last_pt_write_gfn;
340 int last_pt_write_count;
341
6aa8b732
AK		 342 struct kvm_guest_debug guest_debug;
343
344 char fx_buf[FX_BUF_SIZE];
345 char *host_fx_image;
346 char *guest_fx_image;
7807fa6c 347 int fpu_active;
7702fd1f 348 int guest_fpu_loaded;
6aa8b732
AK		 349
350 int mmio_needed;
351 int mmio_read_completed;
352 int mmio_is_write;
353 int mmio_size;
354 unsigned char mmio_data[8];
355 gpa_t mmio_phys_addr;
e7df56e4 356 gva_t mmio_fault_cr2;
039576c0
AK		 357 struct kvm_pio_request pio;
358 void *pio_data;
6aa8b732 359
1961d276
AK		 360 int sigset_active;
361 sigset_t sigset;
362
1165f5fe
AK		 363 struct kvm_stat stat;
364
6aa8b732
AK		 365 struct {
366 int active;
367 u8 save_iopl;
368 struct kvm_save_segment {
369 u16 selector;
370 unsigned long base;
371 u32 limit;
372 u32 ar;
373 } tr, es, ds, fs, gs;
374 } rmode;
72d6e5a0 375 int halt_request; /* real mode on Intel only */
06465c5a
AK		 376
377 int cpuid_nent;
378 struct kvm_cpuid_entry cpuid_entries[KVM_MAX_CPUID_ENTRIES];
6aa8b732
AK		 379};
380
e8207547
AK		 381struct kvm_mem_alias {
382 gfn_t base_gfn;
383 unsigned long npages;
384 gfn_t target_gfn;
385};
386
6aa8b732
AK		 387struct kvm_memory_slot {
388 gfn_t base_gfn;
389 unsigned long npages;
390 unsigned long flags;
391 struct page **phys_mem;
392 unsigned long *dirty_bitmap;
393};
394
395struct kvm {
11ec2804 396 struct mutex lock; /* protects everything except vcpus */
e8207547
AK		 397 int naliases;
398 struct kvm_mem_alias aliases[KVM_ALIAS_SLOTS];
6aa8b732
AK		 399 int nmemslots;
400 struct kvm_memory_slot memslots[KVM_MEMORY_SLOTS];
cea0f0e7
AK		 401 /*
402 * Hash table of struct kvm_mmu_page.
403 */
6aa8b732 404 struct list_head active_mmu_pages;
ebeace86 405 int n_free_mmu_pages;
cea0f0e7 406 struct hlist_head mmu_page_hash[KVM_NUM_MMU_PAGES];
fb3f0f51 407 struct kvm_vcpu *vcpus[KVM_MAX_VCPUS];
6aa8b732
AK		 408 int memory_config_version;
409 int busy;
cd4a4e53 410 unsigned long rmap_overflow;
133de902 411 struct list_head vm_list;
bccf2150 412 struct file *filp;
2eeb2e94 413 struct kvm_io_bus mmio_bus;
74906345 414 struct kvm_io_bus pio_bus;
6aa8b732
AK		 415};
416
6aa8b732
AK		 417struct descriptor_table {
418 u16 limit;
419 unsigned long base;
420} __attribute__((packed));
421
422struct kvm_arch_ops {
423 int (*cpu_has_kvm_support)(void); /* __init */
424 int (*disabled_by_bios)(void); /* __init */
425 void (*hardware_enable)(void *dummy); /* __init */
426 void (*hardware_disable)(void *dummy);
427 int (*hardware_setup)(void); /* __init */
428 void (*hardware_unsetup)(void); /* __exit */
429
fb3f0f51
RR		 430 /* Create, but do not attach this VCPU */
431 struct kvm_vcpu *(*vcpu_create)(struct kvm *kvm, unsigned id);
6aa8b732
AK		 432 void (*vcpu_free)(struct kvm_vcpu *vcpu);
433
15ad7146 434 void (*vcpu_load)(struct kvm_vcpu *vcpu, int cpu);
6aa8b732 435 void (*vcpu_put)(struct kvm_vcpu *vcpu);
774c47f1 436 void (*vcpu_decache)(struct kvm_vcpu *vcpu);
6aa8b732
AK		 437
438 int (*set_guest_debug)(struct kvm_vcpu *vcpu,
439 struct kvm_debug_guest *dbg);
440 int (*get_msr)(struct kvm_vcpu *vcpu, u32 msr_index, u64 *pdata);
441 int (*set_msr)(struct kvm_vcpu *vcpu, u32 msr_index, u64 data);
442 u64 (*get_segment_base)(struct kvm_vcpu *vcpu, int seg);
443 void (*get_segment)(struct kvm_vcpu *vcpu,
444 struct kvm_segment *var, int seg);
445 void (*set_segment)(struct kvm_vcpu *vcpu,
446 struct kvm_segment *var, int seg);
6aa8b732 447 void (*get_cs_db_l_bits)(struct kvm_vcpu *vcpu, int *db, int *l);
25c4c276 448 void (*decache_cr4_guest_bits)(struct kvm_vcpu *vcpu);
6aa8b732 449 void (*set_cr0)(struct kvm_vcpu *vcpu, unsigned long cr0);
6aa8b732
AK		 450 void (*set_cr3)(struct kvm_vcpu *vcpu, unsigned long cr3);
451 void (*set_cr4)(struct kvm_vcpu *vcpu, unsigned long cr4);
452 void (*set_efer)(struct kvm_vcpu *vcpu, u64 efer);
453 void (*get_idt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt);
454 void (*set_idt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt);
455 void (*get_gdt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt);
456 void (*set_gdt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt);
457 unsigned long (*get_dr)(struct kvm_vcpu *vcpu, int dr);
458 void (*set_dr)(struct kvm_vcpu *vcpu, int dr, unsigned long value,
459 int *exception);
460 void (*cache_regs)(struct kvm_vcpu *vcpu);
461 void (*decache_regs)(struct kvm_vcpu *vcpu);
462 unsigned long (*get_rflags)(struct kvm_vcpu *vcpu);
463 void (*set_rflags)(struct kvm_vcpu *vcpu, unsigned long rflags);
464
465 void (*invlpg)(struct kvm_vcpu *vcpu, gva_t addr);
466 void (*tlb_flush)(struct kvm_vcpu *vcpu);
467 void (*inject_page_fault)(struct kvm_vcpu *vcpu,
468 unsigned long addr, u32 err_code);
469
470 void (*inject_gp)(struct kvm_vcpu *vcpu, unsigned err_code);
471
472 int (*run)(struct kvm_vcpu *vcpu, struct kvm_run *run);
6aa8b732 473 void (*skip_emulated_instruction)(struct kvm_vcpu *vcpu);
102d8325
IM		 474 void (*patch_hypercall)(struct kvm_vcpu *vcpu,
475 unsigned char *hypercall_addr);
6aa8b732
AK		 476};
477
6aa8b732
AK		 478extern struct kvm_arch_ops *kvm_arch_ops;
479
480#define kvm_printf(kvm, fmt ...) printk(KERN_DEBUG fmt)
481#define vcpu_printf(vcpu, fmt...) kvm_printf(vcpu->kvm, fmt)
482
fb3f0f51
RR		 483int kvm_vcpu_init(struct kvm_vcpu *vcpu, struct kvm *kvm, unsigned id);
484void kvm_vcpu_uninit(struct kvm_vcpu *vcpu);
485
6aa8b732
AK		 486int kvm_init_arch(struct kvm_arch_ops *ops, struct module *module);
487void kvm_exit_arch(void);
488
b5a33a75
AK		 489int kvm_mmu_module_init(void);
490void kvm_mmu_module_exit(void);
491
6aa8b732 492void kvm_mmu_destroy(struct kvm_vcpu *vcpu);
8018c27b
IM		 493int kvm_mmu_create(struct kvm_vcpu *vcpu);
494int kvm_mmu_setup(struct kvm_vcpu *vcpu);
6aa8b732
AK		 495
496int kvm_mmu_reset_context(struct kvm_vcpu *vcpu);
90cb0529
AK		 497void kvm_mmu_slot_remove_write_access(struct kvm *kvm, int slot);
498void kvm_mmu_zap_all(struct kvm *kvm);
6aa8b732
AK		 499
500hpa_t gpa_to_hpa(struct kvm_vcpu *vcpu, gpa_t gpa);
501#define HPA_MSB ((sizeof(hpa_t) * 8) - 1)
502#define HPA_ERR_MASK ((hpa_t)1 << HPA_MSB)
503static inline int is_error_hpa(hpa_t hpa) { return hpa >> HPA_MSB; }
504hpa_t gva_to_hpa(struct kvm_vcpu *vcpu, gva_t gva);
039576c0 505struct page *gva_to_page(struct kvm_vcpu *vcpu, gva_t gva);
6aa8b732
AK		 506
507void kvm_emulator_want_group7_invlpg(void);
508
509extern hpa_t bad_page_address;
510
954bbbc2 511struct page *gfn_to_page(struct kvm *kvm, gfn_t gfn);
6aa8b732
AK		 512struct kvm_memory_slot *gfn_to_memslot(struct kvm *kvm, gfn_t gfn);
513void mark_page_dirty(struct kvm *kvm, gfn_t gfn);
514
515enum emulation_result {
516 EMULATE_DONE, /* no further processing */
517 EMULATE_DO_MMIO, /* kvm_run filled with mmio request */
518 EMULATE_FAIL, /* can't emulate this instruction */
519};
520
521int emulate_instruction(struct kvm_vcpu *vcpu, struct kvm_run *run,
522 unsigned long cr2, u16 error_code);
523void realmode_lgdt(struct kvm_vcpu *vcpu, u16 size, unsigned long address);
524void realmode_lidt(struct kvm_vcpu *vcpu, u16 size, unsigned long address);
525void realmode_lmsw(struct kvm_vcpu *vcpu, unsigned long msw,
526 unsigned long *rflags);
527
528unsigned long realmode_get_cr(struct kvm_vcpu *vcpu, int cr);
529void realmode_set_cr(struct kvm_vcpu *vcpu, int cr, unsigned long value,
530 unsigned long *rflags);
35f3f286
AK		 531int kvm_get_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 *data);
532int kvm_set_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 data);
6aa8b732
AK		 533
534struct x86_emulate_ctxt;
535
039576c0
AK		 536int kvm_setup_pio(struct kvm_vcpu *vcpu, struct kvm_run *run, int in,
537 int size, unsigned long count, int string, int down,
538 gva_t address, int rep, unsigned port);
06465c5a 539void kvm_emulate_cpuid(struct kvm_vcpu *vcpu);
d3bef15f 540int kvm_emulate_halt(struct kvm_vcpu *vcpu);
6aa8b732
AK		 541int emulate_invlpg(struct kvm_vcpu *vcpu, gva_t address);
542int emulate_clts(struct kvm_vcpu *vcpu);
543int emulator_get_dr(struct x86_emulate_ctxt* ctxt, int dr,
544 unsigned long *dest);
545int emulator_set_dr(struct x86_emulate_ctxt *ctxt, int dr,
546 unsigned long value);
547
548void set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0);
549void set_cr3(struct kvm_vcpu *vcpu, unsigned long cr0);
550void set_cr4(struct kvm_vcpu *vcpu, unsigned long cr0);
551void set_cr8(struct kvm_vcpu *vcpu, unsigned long cr0);
552void lmsw(struct kvm_vcpu *vcpu, unsigned long msw);
553
3bab1f5d
AK		 554int kvm_get_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata);
555int kvm_set_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 data);
6aa8b732
AK		 556
557void fx_init(struct kvm_vcpu *vcpu);
558
6aa8b732 559void kvm_resched(struct kvm_vcpu *vcpu);
7702fd1f
AK		 560void kvm_load_guest_fpu(struct kvm_vcpu *vcpu);
561void kvm_put_guest_fpu(struct kvm_vcpu *vcpu);
d9e368d6 562void kvm_flush_remote_tlbs(struct kvm *kvm);
6aa8b732 563
e7d5d76c
LV		 564int emulator_read_std(unsigned long addr,
565 void *val,
566 unsigned int bytes,
567 struct kvm_vcpu *vcpu);
568int emulator_write_emulated(unsigned long addr,
569 const void *val,
570 unsigned int bytes,
571 struct kvm_vcpu *vcpu);
6aa8b732
AK		 572
573unsigned long segment_base(u16 selector);
574
09072daf 575void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa,
fe551881 576 const u8 *new, int bytes);
a436036b 577int kvm_mmu_unprotect_page_virt(struct kvm_vcpu *vcpu, gva_t gva);
22d95b12 578void __kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu);
17c3ba9d
AK		 579int kvm_mmu_load(struct kvm_vcpu *vcpu);
580void kvm_mmu_unload(struct kvm_vcpu *vcpu);
ebeace86 581
270fd9b9
AK		 582int kvm_hypercall(struct kvm_vcpu *vcpu, struct kvm_run *run);
583
ebeace86
AK		 584static inline int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t gva,
585 u32 error_code)
586{
ebeace86
AK		 587 return vcpu->mmu.page_fault(vcpu, gva, error_code);
588}
da4a00f0 589
22d95b12
AK		 590static inline void kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu)
591{
592 if (unlikely(vcpu->kvm->n_free_mmu_pages < KVM_MIN_FREE_MMU_PAGES))
593 __kvm_mmu_free_some_pages(vcpu);
594}
595
17c3ba9d
AK		 596static inline int kvm_mmu_reload(struct kvm_vcpu *vcpu)
597{
598 if (likely(vcpu->mmu.root_hpa != INVALID_PAGE))
599 return 0;
600
601 return kvm_mmu_load(vcpu);
602}
603
a9058ecd
AK		 604static inline int is_long_mode(struct kvm_vcpu *vcpu)
605{
606#ifdef CONFIG_X86_64
607 return vcpu->shadow_efer & EFER_LME;
608#else
609 return 0;
610#endif
611}
612
6aa8b732
AK		 613static inline int is_pae(struct kvm_vcpu *vcpu)
614{
66aee91a 615 return vcpu->cr4 & X86_CR4_PAE;
6aa8b732
AK		 616}
617
618static inline int is_pse(struct kvm_vcpu *vcpu)
619{
66aee91a 620 return vcpu->cr4 & X86_CR4_PSE;
6aa8b732
AK		 621}
622
623static inline int is_paging(struct kvm_vcpu *vcpu)
624{
707d92fa 625 return vcpu->cr0 & X86_CR0_PG;
6aa8b732
AK		 626}
627
628static inline int memslot_id(struct kvm *kvm, struct kvm_memory_slot *slot)
629{
630 return slot - kvm->memslots;
631}
632
633static inline struct kvm_mmu_page *page_header(hpa_t shadow_page)
634{
635 struct page *page = pfn_to_page(shadow_page >> PAGE_SHIFT);
636
5972e953 637 return (struct kvm_mmu_page *)page_private(page);
6aa8b732
AK		 638}
639
640static inline u16 read_fs(void)
641{
642 u16 seg;
643 asm ("mov %%fs, %0" : "=g"(seg));
644 return seg;
645}
646
647static inline u16 read_gs(void)
648{
649 u16 seg;
650 asm ("mov %%gs, %0" : "=g"(seg));
651 return seg;
652}
653
654static inline u16 read_ldt(void)
655{
656 u16 ldt;
657 asm ("sldt %0" : "=g"(ldt));
658 return ldt;
659}
660
661static inline void load_fs(u16 sel)
662{
663 asm ("mov %0, %%fs" : : "rm"(sel));
664}
665
666static inline void load_gs(u16 sel)
667{
668 asm ("mov %0, %%gs" : : "rm"(sel));
669}
670
671#ifndef load_ldt
672static inline void load_ldt(u16 sel)
673{
a0610ddf 674 asm ("lldt %0" : : "rm"(sel));
6aa8b732
AK		 675}
676#endif
677
678static inline void get_idt(struct descriptor_table *table)
679{
680 asm ("sidt %0" : "=m"(*table));
681}
682
683static inline void get_gdt(struct descriptor_table *table)
684{
685 asm ("sgdt %0" : "=m"(*table));
686}
687
688static inline unsigned long read_tr_base(void)
689{
690 u16 tr;
691 asm ("str %0" : "=g"(tr));
692 return segment_base(tr);
693}
694
05b3e0c2 695#ifdef CONFIG_X86_64
6aa8b732
AK		 696static inline unsigned long read_msr(unsigned long msr)
697{
698 u64 value;
699
700 rdmsrl(msr, value);
701 return value;
702}
703#endif
704
705static inline void fx_save(void *image)
706{
707 asm ("fxsave (%0)":: "r" (image));
708}
709
710static inline void fx_restore(void *image)
711{
712 asm ("fxrstor (%0)":: "r" (image));
713}
714
715static inline void fpu_init(void)
716{
717 asm ("finit");
718}
719
720static inline u32 get_rdx_init_val(void)
721{
722 return 0x600; /* P6 family */
723}
724
725#define ASM_VMX_VMCLEAR_RAX ".byte 0x66, 0x0f, 0xc7, 0x30"
726#define ASM_VMX_VMLAUNCH ".byte 0x0f, 0x01, 0xc2"
727#define ASM_VMX_VMRESUME ".byte 0x0f, 0x01, 0xc3"
728#define ASM_VMX_VMPTRLD_RAX ".byte 0x0f, 0xc7, 0x30"
729#define ASM_VMX_VMREAD_RDX_RAX ".byte 0x0f, 0x78, 0xd0"
730#define ASM_VMX_VMWRITE_RAX_RDX ".byte 0x0f, 0x79, 0xd0"
731#define ASM_VMX_VMWRITE_RSP_RDX ".byte 0x0f, 0x79, 0xd4"
732#define ASM_VMX_VMXOFF ".byte 0x0f, 0x01, 0xc4"
733#define ASM_VMX_VMXON_RAX ".byte 0xf3, 0x0f, 0xc7, 0x30"
734
735#define MSR_IA32_TIME_STAMP_COUNTER 0x010
736
737#define TSS_IOPB_BASE_OFFSET 0x66
738#define TSS_BASE_SIZE 0x68
739#define TSS_IOPB_SIZE (65536 / 8)
740#define TSS_REDIRECTION_SIZE (256 / 8)
741#define RMODE_TSS_SIZE (TSS_BASE_SIZE + TSS_REDIRECTION_SIZE + TSS_IOPB_SIZE + 1)
742
6aa8b732 743#endif
kernel source for telekom puls (alcatel/mediatek)