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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 | ||
84 | typedef unsigned long gva_t; | |
85 | typedef u64 gpa_t; | |
86 | typedef unsigned long gfn_t; | |
87 | ||
88 | typedef unsigned long hva_t; | |
89 | typedef u64 hpa_t; | |
90 | typedef unsigned long hfn_t; | |
91 | ||
cea0f0e7 AK |
92 | #define NR_PTE_CHAIN_ENTRIES 5 |
93 | ||
94 | struct 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 | */ |
108 | union 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 |
120 | struct 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 |
143 | struct 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 | */ | |
150 | struct 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 | ||
164 | struct 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 |
173 | struct kvm_guest_debug { |
174 | int enabled; | |
175 | unsigned long bp[4]; | |
176 | int singlestep; | |
177 | }; | |
178 | ||
179 | enum { | |
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 | ||
201 | enum { | |
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 |
212 | struct 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 |
225 | struct 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 |
243 | struct 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 | ||
258 | static 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 | ||
266 | static 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 | ||
274 | static inline int kvm_iodevice_inrange(struct kvm_io_device *dev, gpa_t addr) | |
275 | { | |
276 | return dev->in_range(dev, addr); | |
277 | } | |
278 | ||
279 | static 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 | */ | |
291 | struct kvm_io_bus { | |
292 | int dev_count; | |
293 | #define NR_IOBUS_DEVS 6 | |
294 | struct kvm_io_device *devs[NR_IOBUS_DEVS]; | |
295 | }; | |
296 | ||
297 | void kvm_io_bus_init(struct kvm_io_bus *bus); | |
298 | void kvm_io_bus_destroy(struct kvm_io_bus *bus); | |
299 | struct kvm_io_device *kvm_io_bus_find_dev(struct kvm_io_bus *bus, gpa_t addr); | |
300 | void kvm_io_bus_register_dev(struct kvm_io_bus *bus, | |
301 | struct kvm_io_device *dev); | |
302 | ||
6aa8b732 AK |
303 | struct 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 |
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 { | |
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 |
417 | struct descriptor_table { |
418 | u16 limit; | |
419 | unsigned long base; | |
420 | } __attribute__((packed)); | |
421 | ||
422 | struct 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 |
478 | extern 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 |
483 | int kvm_vcpu_init(struct kvm_vcpu *vcpu, struct kvm *kvm, unsigned id); |
484 | void kvm_vcpu_uninit(struct kvm_vcpu *vcpu); | |
485 | ||
6aa8b732 AK |
486 | int kvm_init_arch(struct kvm_arch_ops *ops, struct module *module); |
487 | void kvm_exit_arch(void); | |
488 | ||
b5a33a75 AK |
489 | int kvm_mmu_module_init(void); |
490 | void kvm_mmu_module_exit(void); | |
491 | ||
6aa8b732 | 492 | void kvm_mmu_destroy(struct kvm_vcpu *vcpu); |
8018c27b IM |
493 | int kvm_mmu_create(struct kvm_vcpu *vcpu); |
494 | int kvm_mmu_setup(struct kvm_vcpu *vcpu); | |
6aa8b732 AK |
495 | |
496 | int kvm_mmu_reset_context(struct kvm_vcpu *vcpu); | |
90cb0529 AK |
497 | void kvm_mmu_slot_remove_write_access(struct kvm *kvm, int slot); |
498 | void kvm_mmu_zap_all(struct kvm *kvm); | |
6aa8b732 AK |
499 | |
500 | hpa_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) | |
503 | static inline int is_error_hpa(hpa_t hpa) { return hpa >> HPA_MSB; } | |
504 | hpa_t gva_to_hpa(struct kvm_vcpu *vcpu, gva_t gva); | |
039576c0 | 505 | struct page *gva_to_page(struct kvm_vcpu *vcpu, gva_t gva); |
6aa8b732 AK |
506 | |
507 | void kvm_emulator_want_group7_invlpg(void); | |
508 | ||
509 | extern hpa_t bad_page_address; | |
510 | ||
954bbbc2 | 511 | struct page *gfn_to_page(struct kvm *kvm, gfn_t gfn); |
6aa8b732 AK |
512 | struct kvm_memory_slot *gfn_to_memslot(struct kvm *kvm, gfn_t gfn); |
513 | void mark_page_dirty(struct kvm *kvm, gfn_t gfn); | |
514 | ||
515 | enum 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 | ||
521 | int emulate_instruction(struct kvm_vcpu *vcpu, struct kvm_run *run, | |
522 | unsigned long cr2, u16 error_code); | |
523 | void realmode_lgdt(struct kvm_vcpu *vcpu, u16 size, unsigned long address); | |
524 | void realmode_lidt(struct kvm_vcpu *vcpu, u16 size, unsigned long address); | |
525 | void realmode_lmsw(struct kvm_vcpu *vcpu, unsigned long msw, | |
526 | unsigned long *rflags); | |
527 | ||
528 | unsigned long realmode_get_cr(struct kvm_vcpu *vcpu, int cr); | |
529 | void realmode_set_cr(struct kvm_vcpu *vcpu, int cr, unsigned long value, | |
530 | unsigned long *rflags); | |
35f3f286 AK |
531 | int kvm_get_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 *data); |
532 | int kvm_set_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 data); | |
6aa8b732 AK |
533 | |
534 | struct x86_emulate_ctxt; | |
535 | ||
039576c0 AK |
536 | int 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 | 539 | void kvm_emulate_cpuid(struct kvm_vcpu *vcpu); |
d3bef15f | 540 | int kvm_emulate_halt(struct kvm_vcpu *vcpu); |
6aa8b732 AK |
541 | int emulate_invlpg(struct kvm_vcpu *vcpu, gva_t address); |
542 | int emulate_clts(struct kvm_vcpu *vcpu); | |
543 | int emulator_get_dr(struct x86_emulate_ctxt* ctxt, int dr, | |
544 | unsigned long *dest); | |
545 | int emulator_set_dr(struct x86_emulate_ctxt *ctxt, int dr, | |
546 | unsigned long value); | |
547 | ||
548 | void set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0); | |
549 | void set_cr3(struct kvm_vcpu *vcpu, unsigned long cr0); | |
550 | void set_cr4(struct kvm_vcpu *vcpu, unsigned long cr0); | |
551 | void set_cr8(struct kvm_vcpu *vcpu, unsigned long cr0); | |
552 | void lmsw(struct kvm_vcpu *vcpu, unsigned long msw); | |
553 | ||
3bab1f5d AK |
554 | int kvm_get_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata); |
555 | int kvm_set_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 data); | |
6aa8b732 AK |
556 | |
557 | void fx_init(struct kvm_vcpu *vcpu); | |
558 | ||
6aa8b732 | 559 | void kvm_resched(struct kvm_vcpu *vcpu); |
7702fd1f AK |
560 | void kvm_load_guest_fpu(struct kvm_vcpu *vcpu); |
561 | void kvm_put_guest_fpu(struct kvm_vcpu *vcpu); | |
d9e368d6 | 562 | void kvm_flush_remote_tlbs(struct kvm *kvm); |
6aa8b732 | 563 | |
e7d5d76c LV |
564 | int emulator_read_std(unsigned long addr, |
565 | void *val, | |
566 | unsigned int bytes, | |
567 | struct kvm_vcpu *vcpu); | |
568 | int emulator_write_emulated(unsigned long addr, | |
569 | const void *val, | |
570 | unsigned int bytes, | |
571 | struct kvm_vcpu *vcpu); | |
6aa8b732 AK |
572 | |
573 | unsigned long segment_base(u16 selector); | |
574 | ||
09072daf | 575 | void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa, |
fe551881 | 576 | const u8 *new, int bytes); |
a436036b | 577 | int kvm_mmu_unprotect_page_virt(struct kvm_vcpu *vcpu, gva_t gva); |
22d95b12 | 578 | void __kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu); |
17c3ba9d AK |
579 | int kvm_mmu_load(struct kvm_vcpu *vcpu); |
580 | void kvm_mmu_unload(struct kvm_vcpu *vcpu); | |
ebeace86 | 581 | |
270fd9b9 AK |
582 | int kvm_hypercall(struct kvm_vcpu *vcpu, struct kvm_run *run); |
583 | ||
ebeace86 AK |
584 | static 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 |
590 | static 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 |
596 | static 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 |
604 | static 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 |
613 | static inline int is_pae(struct kvm_vcpu *vcpu) |
614 | { | |
66aee91a | 615 | return vcpu->cr4 & X86_CR4_PAE; |
6aa8b732 AK |
616 | } |
617 | ||
618 | static inline int is_pse(struct kvm_vcpu *vcpu) | |
619 | { | |
66aee91a | 620 | return vcpu->cr4 & X86_CR4_PSE; |
6aa8b732 AK |
621 | } |
622 | ||
623 | static inline int is_paging(struct kvm_vcpu *vcpu) | |
624 | { | |
707d92fa | 625 | return vcpu->cr0 & X86_CR0_PG; |
6aa8b732 AK |
626 | } |
627 | ||
628 | static inline int memslot_id(struct kvm *kvm, struct kvm_memory_slot *slot) | |
629 | { | |
630 | return slot - kvm->memslots; | |
631 | } | |
632 | ||
633 | static 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 | ||
640 | static inline u16 read_fs(void) | |
641 | { | |
642 | u16 seg; | |
643 | asm ("mov %%fs, %0" : "=g"(seg)); | |
644 | return seg; | |
645 | } | |
646 | ||
647 | static inline u16 read_gs(void) | |
648 | { | |
649 | u16 seg; | |
650 | asm ("mov %%gs, %0" : "=g"(seg)); | |
651 | return seg; | |
652 | } | |
653 | ||
654 | static inline u16 read_ldt(void) | |
655 | { | |
656 | u16 ldt; | |
657 | asm ("sldt %0" : "=g"(ldt)); | |
658 | return ldt; | |
659 | } | |
660 | ||
661 | static inline void load_fs(u16 sel) | |
662 | { | |
663 | asm ("mov %0, %%fs" : : "rm"(sel)); | |
664 | } | |
665 | ||
666 | static inline void load_gs(u16 sel) | |
667 | { | |
668 | asm ("mov %0, %%gs" : : "rm"(sel)); | |
669 | } | |
670 | ||
671 | #ifndef load_ldt | |
672 | static inline void load_ldt(u16 sel) | |
673 | { | |
a0610ddf | 674 | asm ("lldt %0" : : "rm"(sel)); |
6aa8b732 AK |
675 | } |
676 | #endif | |
677 | ||
678 | static inline void get_idt(struct descriptor_table *table) | |
679 | { | |
680 | asm ("sidt %0" : "=m"(*table)); | |
681 | } | |
682 | ||
683 | static inline void get_gdt(struct descriptor_table *table) | |
684 | { | |
685 | asm ("sgdt %0" : "=m"(*table)); | |
686 | } | |
687 | ||
688 | static 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 |
696 | static inline unsigned long read_msr(unsigned long msr) |
697 | { | |
698 | u64 value; | |
699 | ||
700 | rdmsrl(msr, value); | |
701 | return value; | |
702 | } | |
703 | #endif | |
704 | ||
705 | static inline void fx_save(void *image) | |
706 | { | |
707 | asm ("fxsave (%0)":: "r" (image)); | |
708 | } | |
709 | ||
710 | static inline void fx_restore(void *image) | |
711 | { | |
712 | asm ("fxrstor (%0)":: "r" (image)); | |
713 | } | |
714 | ||
715 | static inline void fpu_init(void) | |
716 | { | |
717 | asm ("finit"); | |
718 | } | |
719 | ||
720 | static 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 |