]>
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> | |
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> |
e8edc6e0 | 16 | #include <asm/signal.h> |
6aa8b732 | 17 | |
6aa8b732 | 18 | #include <linux/kvm.h> |
102d8325 | 19 | #include <linux/kvm_para.h> |
6aa8b732 | 20 | |
f802a307 RR |
21 | #define CR3_PAE_RESERVED_BITS ((X86_CR3_PWT | X86_CR3_PCD) - 1) |
22 | #define CR3_NONPAE_RESERVED_BITS ((PAGE_SIZE-1) & ~(X86_CR3_PWT | X86_CR3_PCD)) | |
23 | #define CR3_L_MODE_RESERVED_BITS (CR3_NONPAE_RESERVED_BITS|0xFFFFFF0000000000ULL) | |
6aa8b732 | 24 | |
6aa8b732 | 25 | #define KVM_GUEST_CR0_MASK \ |
707d92fa RR |
26 | (X86_CR0_PG | X86_CR0_PE | X86_CR0_WP | X86_CR0_NE \ |
27 | | X86_CR0_NW | X86_CR0_CD) | |
6aa8b732 | 28 | #define KVM_VM_CR0_ALWAYS_ON \ |
707d92fa RR |
29 | (X86_CR0_PG | X86_CR0_PE | X86_CR0_WP | X86_CR0_NE | X86_CR0_TS \ |
30 | | X86_CR0_MP) | |
6aa8b732 | 31 | #define KVM_GUEST_CR4_MASK \ |
66aee91a RR |
32 | (X86_CR4_VME | X86_CR4_PSE | X86_CR4_PAE | X86_CR4_PGE | X86_CR4_VMXE) |
33 | #define KVM_PMODE_VM_CR4_ALWAYS_ON (X86_CR4_PAE | X86_CR4_VMXE) | |
34 | #define KVM_RMODE_VM_CR4_ALWAYS_ON (X86_CR4_VME | X86_CR4_PAE | X86_CR4_VMXE) | |
6aa8b732 AK |
35 | |
36 | #define INVALID_PAGE (~(hpa_t)0) | |
37 | #define UNMAPPED_GVA (~(gpa_t)0) | |
38 | ||
ef9254df | 39 | #define KVM_MAX_VCPUS 4 |
e8207547 | 40 | #define KVM_ALIAS_SLOTS 4 |
6aa8b732 | 41 | #define KVM_MEMORY_SLOTS 4 |
7494c0cc | 42 | #define KVM_NUM_MMU_PAGES 1024 |
ebeace86 AK |
43 | #define KVM_MIN_FREE_MMU_PAGES 5 |
44 | #define KVM_REFILL_PAGES 25 | |
06465c5a | 45 | #define KVM_MAX_CPUID_ENTRIES 40 |
6aa8b732 AK |
46 | |
47 | #define FX_IMAGE_SIZE 512 | |
48 | #define FX_IMAGE_ALIGN 16 | |
49 | #define FX_BUF_SIZE (2 * FX_IMAGE_SIZE + FX_IMAGE_ALIGN) | |
50 | ||
51 | #define DE_VECTOR 0 | |
7807fa6c | 52 | #define NM_VECTOR 7 |
6aa8b732 AK |
53 | #define DF_VECTOR 8 |
54 | #define TS_VECTOR 10 | |
55 | #define NP_VECTOR 11 | |
56 | #define SS_VECTOR 12 | |
57 | #define GP_VECTOR 13 | |
58 | #define PF_VECTOR 14 | |
59 | ||
60 | #define SELECTOR_TI_MASK (1 << 2) | |
61 | #define SELECTOR_RPL_MASK 0x03 | |
62 | ||
63 | #define IOPL_SHIFT 12 | |
64 | ||
039576c0 AK |
65 | #define KVM_PIO_PAGE_OFFSET 1 |
66 | ||
d9e368d6 AK |
67 | /* |
68 | * vcpu->requests bit members | |
69 | */ | |
70 | #define KVM_TLB_FLUSH 0 | |
71 | ||
6aa8b732 AK |
72 | /* |
73 | * Address types: | |
74 | * | |
75 | * gva - guest virtual address | |
76 | * gpa - guest physical address | |
77 | * gfn - guest frame number | |
78 | * hva - host virtual address | |
79 | * hpa - host physical address | |
80 | * hfn - host frame number | |
81 | */ | |
82 | ||
83 | typedef unsigned long gva_t; | |
84 | typedef u64 gpa_t; | |
85 | typedef unsigned long gfn_t; | |
86 | ||
87 | typedef unsigned long hva_t; | |
88 | typedef u64 hpa_t; | |
89 | typedef unsigned long hfn_t; | |
90 | ||
cea0f0e7 AK |
91 | #define NR_PTE_CHAIN_ENTRIES 5 |
92 | ||
93 | struct kvm_pte_chain { | |
94 | u64 *parent_ptes[NR_PTE_CHAIN_ENTRIES]; | |
95 | struct hlist_node link; | |
96 | }; | |
97 | ||
98 | /* | |
99 | * kvm_mmu_page_role, below, is defined as: | |
100 | * | |
101 | * bits 0:3 - total guest paging levels (2-4, or zero for real mode) | |
102 | * bits 4:7 - page table level for this shadow (1-4) | |
103 | * bits 8:9 - page table quadrant for 2-level guests | |
104 | * bit 16 - "metaphysical" - gfn is not a real page (huge page/real mode) | |
d55e2cb2 | 105 | * bits 17:19 - "access" - the user, writable, and nx bits of a huge page pde |
cea0f0e7 AK |
106 | */ |
107 | union kvm_mmu_page_role { | |
108 | unsigned word; | |
109 | struct { | |
110 | unsigned glevels : 4; | |
111 | unsigned level : 4; | |
112 | unsigned quadrant : 2; | |
113 | unsigned pad_for_nice_hex_output : 6; | |
114 | unsigned metaphysical : 1; | |
d55e2cb2 | 115 | unsigned hugepage_access : 3; |
cea0f0e7 AK |
116 | }; |
117 | }; | |
118 | ||
6aa8b732 AK |
119 | struct kvm_mmu_page { |
120 | struct list_head link; | |
cea0f0e7 AK |
121 | struct hlist_node hash_link; |
122 | ||
123 | /* | |
124 | * The following two entries are used to key the shadow page in the | |
125 | * hash table. | |
126 | */ | |
127 | gfn_t gfn; | |
128 | union kvm_mmu_page_role role; | |
129 | ||
47ad8e68 | 130 | u64 *spt; |
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 AK |
142 | struct kvm_vcpu; |
143 | ||
144 | /* | |
145 | * x86 supports 3 paging modes (4-level 64-bit, 3-level 64-bit, and 2-level | |
146 | * 32-bit). The kvm_mmu structure abstracts the details of the current mmu | |
147 | * mode. | |
148 | */ | |
149 | struct kvm_mmu { | |
150 | void (*new_cr3)(struct kvm_vcpu *vcpu); | |
151 | int (*page_fault)(struct kvm_vcpu *vcpu, gva_t gva, u32 err); | |
6aa8b732 AK |
152 | void (*free)(struct kvm_vcpu *vcpu); |
153 | gpa_t (*gva_to_gpa)(struct kvm_vcpu *vcpu, gva_t gva); | |
154 | hpa_t root_hpa; | |
155 | int root_level; | |
156 | int shadow_root_level; | |
17ac10ad AK |
157 | |
158 | u64 *pae_root; | |
6aa8b732 AK |
159 | }; |
160 | ||
714b93da AK |
161 | #define KVM_NR_MEM_OBJS 20 |
162 | ||
163 | struct kvm_mmu_memory_cache { | |
164 | int nobjs; | |
165 | void *objects[KVM_NR_MEM_OBJS]; | |
166 | }; | |
167 | ||
168 | /* | |
169 | * We don't want allocation failures within the mmu code, so we preallocate | |
170 | * enough memory for a single page fault in a cache. | |
171 | */ | |
6aa8b732 AK |
172 | struct kvm_guest_debug { |
173 | int enabled; | |
174 | unsigned long bp[4]; | |
175 | int singlestep; | |
176 | }; | |
177 | ||
178 | enum { | |
179 | VCPU_REGS_RAX = 0, | |
180 | VCPU_REGS_RCX = 1, | |
181 | VCPU_REGS_RDX = 2, | |
182 | VCPU_REGS_RBX = 3, | |
183 | VCPU_REGS_RSP = 4, | |
184 | VCPU_REGS_RBP = 5, | |
185 | VCPU_REGS_RSI = 6, | |
186 | VCPU_REGS_RDI = 7, | |
05b3e0c2 | 187 | #ifdef CONFIG_X86_64 |
6aa8b732 AK |
188 | VCPU_REGS_R8 = 8, |
189 | VCPU_REGS_R9 = 9, | |
190 | VCPU_REGS_R10 = 10, | |
191 | VCPU_REGS_R11 = 11, | |
192 | VCPU_REGS_R12 = 12, | |
193 | VCPU_REGS_R13 = 13, | |
194 | VCPU_REGS_R14 = 14, | |
195 | VCPU_REGS_R15 = 15, | |
196 | #endif | |
197 | NR_VCPU_REGS | |
198 | }; | |
199 | ||
200 | enum { | |
201 | VCPU_SREG_CS, | |
202 | VCPU_SREG_DS, | |
203 | VCPU_SREG_ES, | |
204 | VCPU_SREG_FS, | |
205 | VCPU_SREG_GS, | |
206 | VCPU_SREG_SS, | |
207 | VCPU_SREG_TR, | |
208 | VCPU_SREG_LDTR, | |
209 | }; | |
210 | ||
039576c0 AK |
211 | struct kvm_pio_request { |
212 | unsigned long count; | |
213 | int cur_count; | |
214 | struct page *guest_pages[2]; | |
215 | unsigned guest_page_offset; | |
216 | int in; | |
74906345 | 217 | int port; |
039576c0 AK |
218 | int size; |
219 | int string; | |
220 | int down; | |
221 | int rep; | |
222 | }; | |
223 | ||
1165f5fe AK |
224 | struct kvm_stat { |
225 | u32 pf_fixed; | |
226 | u32 pf_guest; | |
227 | u32 tlb_flush; | |
228 | u32 invlpg; | |
229 | ||
230 | u32 exits; | |
231 | u32 io_exits; | |
232 | u32 mmio_exits; | |
233 | u32 signal_exits; | |
234 | u32 irq_window_exits; | |
235 | u32 halt_exits; | |
236 | u32 request_irq_exits; | |
237 | u32 irq_exits; | |
e6adf283 | 238 | u32 light_exits; |
2cc51560 | 239 | u32 efer_reload; |
1165f5fe AK |
240 | }; |
241 | ||
2eeb2e94 GH |
242 | struct kvm_io_device { |
243 | void (*read)(struct kvm_io_device *this, | |
244 | gpa_t addr, | |
245 | int len, | |
246 | void *val); | |
247 | void (*write)(struct kvm_io_device *this, | |
248 | gpa_t addr, | |
249 | int len, | |
250 | const void *val); | |
251 | int (*in_range)(struct kvm_io_device *this, gpa_t addr); | |
252 | void (*destructor)(struct kvm_io_device *this); | |
253 | ||
254 | void *private; | |
255 | }; | |
256 | ||
257 | static inline void kvm_iodevice_read(struct kvm_io_device *dev, | |
258 | gpa_t addr, | |
259 | int len, | |
260 | void *val) | |
261 | { | |
262 | dev->read(dev, addr, len, val); | |
263 | } | |
264 | ||
265 | static inline void kvm_iodevice_write(struct kvm_io_device *dev, | |
266 | gpa_t addr, | |
267 | int len, | |
268 | const void *val) | |
269 | { | |
270 | dev->write(dev, addr, len, val); | |
271 | } | |
272 | ||
273 | static inline int kvm_iodevice_inrange(struct kvm_io_device *dev, gpa_t addr) | |
274 | { | |
275 | return dev->in_range(dev, addr); | |
276 | } | |
277 | ||
278 | static inline void kvm_iodevice_destructor(struct kvm_io_device *dev) | |
279 | { | |
74906345 ED |
280 | if (dev->destructor) |
281 | dev->destructor(dev); | |
2eeb2e94 GH |
282 | } |
283 | ||
284 | /* | |
285 | * It would be nice to use something smarter than a linear search, TBD... | |
286 | * Thankfully we dont expect many devices to register (famous last words :), | |
287 | * so until then it will suffice. At least its abstracted so we can change | |
288 | * in one place. | |
289 | */ | |
290 | struct kvm_io_bus { | |
291 | int dev_count; | |
292 | #define NR_IOBUS_DEVS 6 | |
293 | struct kvm_io_device *devs[NR_IOBUS_DEVS]; | |
294 | }; | |
295 | ||
296 | void kvm_io_bus_init(struct kvm_io_bus *bus); | |
297 | void kvm_io_bus_destroy(struct kvm_io_bus *bus); | |
298 | struct kvm_io_device *kvm_io_bus_find_dev(struct kvm_io_bus *bus, gpa_t addr); | |
299 | void kvm_io_bus_register_dev(struct kvm_io_bus *bus, | |
300 | struct kvm_io_device *dev); | |
301 | ||
6aa8b732 | 302 | struct kvm_vcpu { |
a2fa3e9f | 303 | int valid; |
6aa8b732 | 304 | struct kvm *kvm; |
dad3795d | 305 | int vcpu_id; |
a2fa3e9f | 306 | void *_priv; |
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 |
381 | struct kvm_mem_alias { |
382 | gfn_t base_gfn; | |
383 | unsigned long npages; | |
384 | gfn_t target_gfn; | |
385 | }; | |
386 | ||
6aa8b732 AK |
387 | struct 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 | ||
395 | struct kvm { | |
396 | spinlock_t 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]; |
39c3b86e | 407 | int nvcpus; |
6aa8b732 AK |
408 | struct kvm_vcpu vcpus[KVM_MAX_VCPUS]; |
409 | int memory_config_version; | |
410 | int busy; | |
cd4a4e53 | 411 | unsigned long rmap_overflow; |
133de902 | 412 | struct list_head vm_list; |
bccf2150 | 413 | struct file *filp; |
2eeb2e94 | 414 | struct kvm_io_bus mmio_bus; |
74906345 | 415 | struct kvm_io_bus pio_bus; |
6aa8b732 AK |
416 | }; |
417 | ||
6aa8b732 AK |
418 | struct descriptor_table { |
419 | u16 limit; | |
420 | unsigned long base; | |
421 | } __attribute__((packed)); | |
422 | ||
423 | struct kvm_arch_ops { | |
424 | int (*cpu_has_kvm_support)(void); /* __init */ | |
425 | int (*disabled_by_bios)(void); /* __init */ | |
426 | void (*hardware_enable)(void *dummy); /* __init */ | |
427 | void (*hardware_disable)(void *dummy); | |
428 | int (*hardware_setup)(void); /* __init */ | |
429 | void (*hardware_unsetup)(void); /* __exit */ | |
430 | ||
431 | int (*vcpu_create)(struct kvm_vcpu *vcpu); | |
432 | void (*vcpu_free)(struct kvm_vcpu *vcpu); | |
433 | ||
bccf2150 | 434 | void (*vcpu_load)(struct kvm_vcpu *vcpu); |
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); | |
473 | int (*vcpu_setup)(struct kvm_vcpu *vcpu); | |
474 | void (*skip_emulated_instruction)(struct kvm_vcpu *vcpu); | |
102d8325 IM |
475 | void (*patch_hypercall)(struct kvm_vcpu *vcpu, |
476 | unsigned char *hypercall_addr); | |
6aa8b732 AK |
477 | }; |
478 | ||
6aa8b732 AK |
479 | extern struct kvm_arch_ops *kvm_arch_ops; |
480 | ||
481 | #define kvm_printf(kvm, fmt ...) printk(KERN_DEBUG fmt) | |
482 | #define vcpu_printf(vcpu, fmt...) kvm_printf(vcpu->kvm, fmt) | |
483 | ||
484 | int kvm_init_arch(struct kvm_arch_ops *ops, struct module *module); | |
485 | void kvm_exit_arch(void); | |
486 | ||
b5a33a75 AK |
487 | int kvm_mmu_module_init(void); |
488 | void kvm_mmu_module_exit(void); | |
489 | ||
6aa8b732 | 490 | void kvm_mmu_destroy(struct kvm_vcpu *vcpu); |
8018c27b IM |
491 | int kvm_mmu_create(struct kvm_vcpu *vcpu); |
492 | int kvm_mmu_setup(struct kvm_vcpu *vcpu); | |
6aa8b732 AK |
493 | |
494 | int kvm_mmu_reset_context(struct kvm_vcpu *vcpu); | |
90cb0529 AK |
495 | void kvm_mmu_slot_remove_write_access(struct kvm *kvm, int slot); |
496 | void kvm_mmu_zap_all(struct kvm *kvm); | |
6aa8b732 AK |
497 | |
498 | hpa_t gpa_to_hpa(struct kvm_vcpu *vcpu, gpa_t gpa); | |
499 | #define HPA_MSB ((sizeof(hpa_t) * 8) - 1) | |
500 | #define HPA_ERR_MASK ((hpa_t)1 << HPA_MSB) | |
501 | static inline int is_error_hpa(hpa_t hpa) { return hpa >> HPA_MSB; } | |
502 | hpa_t gva_to_hpa(struct kvm_vcpu *vcpu, gva_t gva); | |
039576c0 | 503 | struct page *gva_to_page(struct kvm_vcpu *vcpu, gva_t gva); |
6aa8b732 AK |
504 | |
505 | void kvm_emulator_want_group7_invlpg(void); | |
506 | ||
507 | extern hpa_t bad_page_address; | |
508 | ||
954bbbc2 | 509 | struct page *gfn_to_page(struct kvm *kvm, gfn_t gfn); |
6aa8b732 AK |
510 | struct kvm_memory_slot *gfn_to_memslot(struct kvm *kvm, gfn_t gfn); |
511 | void mark_page_dirty(struct kvm *kvm, gfn_t gfn); | |
512 | ||
513 | enum emulation_result { | |
514 | EMULATE_DONE, /* no further processing */ | |
515 | EMULATE_DO_MMIO, /* kvm_run filled with mmio request */ | |
516 | EMULATE_FAIL, /* can't emulate this instruction */ | |
517 | }; | |
518 | ||
519 | int emulate_instruction(struct kvm_vcpu *vcpu, struct kvm_run *run, | |
520 | unsigned long cr2, u16 error_code); | |
521 | void realmode_lgdt(struct kvm_vcpu *vcpu, u16 size, unsigned long address); | |
522 | void realmode_lidt(struct kvm_vcpu *vcpu, u16 size, unsigned long address); | |
523 | void realmode_lmsw(struct kvm_vcpu *vcpu, unsigned long msw, | |
524 | unsigned long *rflags); | |
525 | ||
526 | unsigned long realmode_get_cr(struct kvm_vcpu *vcpu, int cr); | |
527 | void realmode_set_cr(struct kvm_vcpu *vcpu, int cr, unsigned long value, | |
528 | unsigned long *rflags); | |
35f3f286 AK |
529 | int kvm_get_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 *data); |
530 | int kvm_set_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 data); | |
6aa8b732 AK |
531 | |
532 | struct x86_emulate_ctxt; | |
533 | ||
039576c0 AK |
534 | int kvm_setup_pio(struct kvm_vcpu *vcpu, struct kvm_run *run, int in, |
535 | int size, unsigned long count, int string, int down, | |
536 | gva_t address, int rep, unsigned port); | |
06465c5a | 537 | void kvm_emulate_cpuid(struct kvm_vcpu *vcpu); |
d3bef15f | 538 | int kvm_emulate_halt(struct kvm_vcpu *vcpu); |
6aa8b732 AK |
539 | int emulate_invlpg(struct kvm_vcpu *vcpu, gva_t address); |
540 | int emulate_clts(struct kvm_vcpu *vcpu); | |
541 | int emulator_get_dr(struct x86_emulate_ctxt* ctxt, int dr, | |
542 | unsigned long *dest); | |
543 | int emulator_set_dr(struct x86_emulate_ctxt *ctxt, int dr, | |
544 | unsigned long value); | |
545 | ||
546 | void set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0); | |
547 | void set_cr3(struct kvm_vcpu *vcpu, unsigned long cr0); | |
548 | void set_cr4(struct kvm_vcpu *vcpu, unsigned long cr0); | |
549 | void set_cr8(struct kvm_vcpu *vcpu, unsigned long cr0); | |
550 | void lmsw(struct kvm_vcpu *vcpu, unsigned long msw); | |
551 | ||
3bab1f5d AK |
552 | int kvm_get_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata); |
553 | int kvm_set_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 data); | |
6aa8b732 AK |
554 | |
555 | void fx_init(struct kvm_vcpu *vcpu); | |
556 | ||
6aa8b732 | 557 | void kvm_resched(struct kvm_vcpu *vcpu); |
7702fd1f AK |
558 | void kvm_load_guest_fpu(struct kvm_vcpu *vcpu); |
559 | void kvm_put_guest_fpu(struct kvm_vcpu *vcpu); | |
d9e368d6 | 560 | void kvm_flush_remote_tlbs(struct kvm *kvm); |
6aa8b732 AK |
561 | |
562 | int kvm_read_guest(struct kvm_vcpu *vcpu, | |
563 | gva_t addr, | |
564 | unsigned long size, | |
565 | void *dest); | |
566 | ||
567 | int kvm_write_guest(struct kvm_vcpu *vcpu, | |
568 | gva_t addr, | |
569 | unsigned long size, | |
570 | void *data); | |
571 | ||
572 | unsigned long segment_base(u16 selector); | |
573 | ||
09072daf | 574 | void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa, |
fe551881 | 575 | const u8 *new, int bytes); |
a436036b | 576 | int kvm_mmu_unprotect_page_virt(struct kvm_vcpu *vcpu, gva_t gva); |
22d95b12 | 577 | void __kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu); |
17c3ba9d AK |
578 | int kvm_mmu_load(struct kvm_vcpu *vcpu); |
579 | void kvm_mmu_unload(struct kvm_vcpu *vcpu); | |
ebeace86 | 580 | |
270fd9b9 AK |
581 | int kvm_hypercall(struct kvm_vcpu *vcpu, struct kvm_run *run); |
582 | ||
ebeace86 AK |
583 | static inline int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t gva, |
584 | u32 error_code) | |
585 | { | |
ebeace86 AK |
586 | return vcpu->mmu.page_fault(vcpu, gva, error_code); |
587 | } | |
da4a00f0 | 588 | |
22d95b12 AK |
589 | static inline void kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu) |
590 | { | |
591 | if (unlikely(vcpu->kvm->n_free_mmu_pages < KVM_MIN_FREE_MMU_PAGES)) | |
592 | __kvm_mmu_free_some_pages(vcpu); | |
593 | } | |
594 | ||
17c3ba9d AK |
595 | static inline int kvm_mmu_reload(struct kvm_vcpu *vcpu) |
596 | { | |
597 | if (likely(vcpu->mmu.root_hpa != INVALID_PAGE)) | |
598 | return 0; | |
599 | ||
600 | return kvm_mmu_load(vcpu); | |
601 | } | |
602 | ||
a9058ecd AK |
603 | static inline int is_long_mode(struct kvm_vcpu *vcpu) |
604 | { | |
605 | #ifdef CONFIG_X86_64 | |
606 | return vcpu->shadow_efer & EFER_LME; | |
607 | #else | |
608 | return 0; | |
609 | #endif | |
610 | } | |
611 | ||
6aa8b732 AK |
612 | static inline int is_pae(struct kvm_vcpu *vcpu) |
613 | { | |
66aee91a | 614 | return vcpu->cr4 & X86_CR4_PAE; |
6aa8b732 AK |
615 | } |
616 | ||
617 | static inline int is_pse(struct kvm_vcpu *vcpu) | |
618 | { | |
66aee91a | 619 | return vcpu->cr4 & X86_CR4_PSE; |
6aa8b732 AK |
620 | } |
621 | ||
622 | static inline int is_paging(struct kvm_vcpu *vcpu) | |
623 | { | |
707d92fa | 624 | return vcpu->cr0 & X86_CR0_PG; |
6aa8b732 AK |
625 | } |
626 | ||
627 | static inline int memslot_id(struct kvm *kvm, struct kvm_memory_slot *slot) | |
628 | { | |
629 | return slot - kvm->memslots; | |
630 | } | |
631 | ||
632 | static inline struct kvm_mmu_page *page_header(hpa_t shadow_page) | |
633 | { | |
634 | struct page *page = pfn_to_page(shadow_page >> PAGE_SHIFT); | |
635 | ||
5972e953 | 636 | return (struct kvm_mmu_page *)page_private(page); |
6aa8b732 AK |
637 | } |
638 | ||
639 | static inline u16 read_fs(void) | |
640 | { | |
641 | u16 seg; | |
642 | asm ("mov %%fs, %0" : "=g"(seg)); | |
643 | return seg; | |
644 | } | |
645 | ||
646 | static inline u16 read_gs(void) | |
647 | { | |
648 | u16 seg; | |
649 | asm ("mov %%gs, %0" : "=g"(seg)); | |
650 | return seg; | |
651 | } | |
652 | ||
653 | static inline u16 read_ldt(void) | |
654 | { | |
655 | u16 ldt; | |
656 | asm ("sldt %0" : "=g"(ldt)); | |
657 | return ldt; | |
658 | } | |
659 | ||
660 | static inline void load_fs(u16 sel) | |
661 | { | |
662 | asm ("mov %0, %%fs" : : "rm"(sel)); | |
663 | } | |
664 | ||
665 | static inline void load_gs(u16 sel) | |
666 | { | |
667 | asm ("mov %0, %%gs" : : "rm"(sel)); | |
668 | } | |
669 | ||
670 | #ifndef load_ldt | |
671 | static inline void load_ldt(u16 sel) | |
672 | { | |
a0610ddf | 673 | asm ("lldt %0" : : "rm"(sel)); |
6aa8b732 AK |
674 | } |
675 | #endif | |
676 | ||
677 | static inline void get_idt(struct descriptor_table *table) | |
678 | { | |
679 | asm ("sidt %0" : "=m"(*table)); | |
680 | } | |
681 | ||
682 | static inline void get_gdt(struct descriptor_table *table) | |
683 | { | |
684 | asm ("sgdt %0" : "=m"(*table)); | |
685 | } | |
686 | ||
687 | static inline unsigned long read_tr_base(void) | |
688 | { | |
689 | u16 tr; | |
690 | asm ("str %0" : "=g"(tr)); | |
691 | return segment_base(tr); | |
692 | } | |
693 | ||
05b3e0c2 | 694 | #ifdef CONFIG_X86_64 |
6aa8b732 AK |
695 | static inline unsigned long read_msr(unsigned long msr) |
696 | { | |
697 | u64 value; | |
698 | ||
699 | rdmsrl(msr, value); | |
700 | return value; | |
701 | } | |
702 | #endif | |
703 | ||
704 | static inline void fx_save(void *image) | |
705 | { | |
706 | asm ("fxsave (%0)":: "r" (image)); | |
707 | } | |
708 | ||
709 | static inline void fx_restore(void *image) | |
710 | { | |
711 | asm ("fxrstor (%0)":: "r" (image)); | |
712 | } | |
713 | ||
714 | static inline void fpu_init(void) | |
715 | { | |
716 | asm ("finit"); | |
717 | } | |
718 | ||
719 | static inline u32 get_rdx_init_val(void) | |
720 | { | |
721 | return 0x600; /* P6 family */ | |
722 | } | |
723 | ||
724 | #define ASM_VMX_VMCLEAR_RAX ".byte 0x66, 0x0f, 0xc7, 0x30" | |
725 | #define ASM_VMX_VMLAUNCH ".byte 0x0f, 0x01, 0xc2" | |
726 | #define ASM_VMX_VMRESUME ".byte 0x0f, 0x01, 0xc3" | |
727 | #define ASM_VMX_VMPTRLD_RAX ".byte 0x0f, 0xc7, 0x30" | |
728 | #define ASM_VMX_VMREAD_RDX_RAX ".byte 0x0f, 0x78, 0xd0" | |
729 | #define ASM_VMX_VMWRITE_RAX_RDX ".byte 0x0f, 0x79, 0xd0" | |
730 | #define ASM_VMX_VMWRITE_RSP_RDX ".byte 0x0f, 0x79, 0xd4" | |
731 | #define ASM_VMX_VMXOFF ".byte 0x0f, 0x01, 0xc4" | |
732 | #define ASM_VMX_VMXON_RAX ".byte 0xf3, 0x0f, 0xc7, 0x30" | |
733 | ||
734 | #define MSR_IA32_TIME_STAMP_COUNTER 0x010 | |
735 | ||
736 | #define TSS_IOPB_BASE_OFFSET 0x66 | |
737 | #define TSS_BASE_SIZE 0x68 | |
738 | #define TSS_IOPB_SIZE (65536 / 8) | |
739 | #define TSS_REDIRECTION_SIZE (256 / 8) | |
740 | #define RMODE_TSS_SIZE (TSS_BASE_SIZE + TSS_REDIRECTION_SIZE + TSS_IOPB_SIZE + 1) | |
741 | ||
6aa8b732 | 742 | #endif |