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taskstats: remove initialization of static per-cpu variable
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / include / asm-x86 / kvm_host.h
CommitLineData
043405e1
CO		 1#/*
2 * Kernel-based Virtual Machine driver for Linux
3 *
4 * This header defines architecture specific interfaces, x86 version
5 *
6 * This work is licensed under the terms of the GNU GPL, version 2. See
7 * the COPYING file in the top-level directory.
8 *
9 */
10
edf88417
AK		 11#ifndef ASM_KVM_HOST_H
12#define ASM_KVM_HOST_H
043405e1 13
34c16eec
ZX		 14#include <linux/types.h>
15#include <linux/mm.h>
16
17#include <linux/kvm.h>
18#include <linux/kvm_para.h>
edf88417 19#include <linux/kvm_types.h>
34c16eec 20
50d0a0f9 21#include <asm/pvclock-abi.h>
e01a1b57
HB		 22#include <asm/desc.h>
23
69a9f69b
AK		 24#define KVM_MAX_VCPUS 16
25#define KVM_MEMORY_SLOTS 32
26/* memory slots that does not exposed to userspace */
27#define KVM_PRIVATE_MEM_SLOTS 4
28
29#define KVM_PIO_PAGE_OFFSET 1
542472b5 30#define KVM_COALESCED_MMIO_PAGE_OFFSET 2
69a9f69b 31
cd6e8f87
ZX		 32#define CR3_PAE_RESERVED_BITS ((X86_CR3_PWT | X86_CR3_PCD) - 1)
33#define CR3_NONPAE_RESERVED_BITS ((PAGE_SIZE-1) & ~(X86_CR3_PWT | X86_CR3_PCD))
7d76b4d3
JP		 34#define CR3_L_MODE_RESERVED_BITS (CR3_NONPAE_RESERVED_BITS | \
35 0xFFFFFF0000000000ULL)
cd6e8f87 36
7d76b4d3 37#define KVM_GUEST_CR0_MASK \
cd6e8f87
ZX		 38 (X86_CR0_PG | X86_CR0_PE | X86_CR0_WP | X86_CR0_NE \
39 | X86_CR0_NW | X86_CR0_CD)
7d76b4d3 40#define KVM_VM_CR0_ALWAYS_ON \
cd6e8f87
ZX		 41 (X86_CR0_PG | X86_CR0_PE | X86_CR0_WP | X86_CR0_NE | X86_CR0_TS \
42 | X86_CR0_MP)
7d76b4d3 43#define KVM_GUEST_CR4_MASK \
cd6e8f87
ZX		 44 (X86_CR4_VME | X86_CR4_PSE | X86_CR4_PAE | X86_CR4_PGE | X86_CR4_VMXE)
45#define KVM_PMODE_VM_CR4_ALWAYS_ON (X86_CR4_PAE | X86_CR4_VMXE)
46#define KVM_RMODE_VM_CR4_ALWAYS_ON (X86_CR4_VME | X86_CR4_PAE | X86_CR4_VMXE)
47
48#define INVALID_PAGE (~(hpa_t)0)
49#define UNMAPPED_GVA (~(gpa_t)0)
50
05da4558
MT		 51/* shadow tables are PAE even on non-PAE hosts */
52#define KVM_HPAGE_SHIFT 21
53#define KVM_HPAGE_SIZE (1UL << KVM_HPAGE_SHIFT)
54#define KVM_HPAGE_MASK (~(KVM_HPAGE_SIZE - 1))
55
56#define KVM_PAGES_PER_HPAGE (KVM_HPAGE_SIZE / PAGE_SIZE)
57
cd6e8f87
ZX		 58#define DE_VECTOR 0
59#define UD_VECTOR 6
60#define NM_VECTOR 7
61#define DF_VECTOR 8
62#define TS_VECTOR 10
63#define NP_VECTOR 11
64#define SS_VECTOR 12
65#define GP_VECTOR 13
66#define PF_VECTOR 14
53371b50 67#define MC_VECTOR 18
cd6e8f87
ZX		 68
69#define SELECTOR_TI_MASK (1 << 2)
70#define SELECTOR_RPL_MASK 0x03
71
72#define IOPL_SHIFT 12
73
d69fb81f
ZX		 74#define KVM_ALIAS_SLOTS 4
75
d657a98e
ZX		 76#define KVM_PERMILLE_MMU_PAGES 20
77#define KVM_MIN_ALLOC_MMU_PAGES 64
1ae0a13d
DE		 78#define KVM_MMU_HASH_SHIFT 10
79#define KVM_NUM_MMU_PAGES (1 << KVM_MMU_HASH_SHIFT)
d657a98e
ZX		 80#define KVM_MIN_FREE_MMU_PAGES 5
81#define KVM_REFILL_PAGES 25
82#define KVM_MAX_CPUID_ENTRIES 40
9ba075a6 83#define KVM_NR_VAR_MTRR 8
d657a98e 84
e9b11c17
ZX		 85extern spinlock_t kvm_lock;
86extern struct list_head vm_list;
87
d657a98e
ZX		 88struct kvm_vcpu;
89struct kvm;
90
2b3ccfa0
ZX		 91enum {
92 VCPU_REGS_RAX = 0,
93 VCPU_REGS_RCX = 1,
94 VCPU_REGS_RDX = 2,
95 VCPU_REGS_RBX = 3,
96 VCPU_REGS_RSP = 4,
97 VCPU_REGS_RBP = 5,
98 VCPU_REGS_RSI = 6,
99 VCPU_REGS_RDI = 7,
100#ifdef CONFIG_X86_64
101 VCPU_REGS_R8 = 8,
102 VCPU_REGS_R9 = 9,
103 VCPU_REGS_R10 = 10,
104 VCPU_REGS_R11 = 11,
105 VCPU_REGS_R12 = 12,
106 VCPU_REGS_R13 = 13,
107 VCPU_REGS_R14 = 14,
108 VCPU_REGS_R15 = 15,
109#endif
110 NR_VCPU_REGS
111};
112
113enum {
81609e3e 114 VCPU_SREG_ES,
2b3ccfa0 115 VCPU_SREG_CS,
81609e3e 116 VCPU_SREG_SS,
2b3ccfa0 117 VCPU_SREG_DS,
2b3ccfa0
ZX		 118 VCPU_SREG_FS,
119 VCPU_SREG_GS,
2b3ccfa0
ZX		 120 VCPU_SREG_TR,
121 VCPU_SREG_LDTR,
122};
123
edf88417 124#include <asm/kvm_x86_emulate.h>
2b3ccfa0 125
d657a98e
ZX		 126#define KVM_NR_MEM_OBJS 40
127
69a9f69b
AK		 128struct kvm_guest_debug {
129 int enabled;
130 unsigned long bp[4];
131 int singlestep;
132};
133
d657a98e
ZX		 134/*
135 * We don't want allocation failures within the mmu code, so we preallocate
136 * enough memory for a single page fault in a cache.
137 */
138struct kvm_mmu_memory_cache {
139 int nobjs;
140 void *objects[KVM_NR_MEM_OBJS];
141};
142
143#define NR_PTE_CHAIN_ENTRIES 5
144
145struct kvm_pte_chain {
146 u64 *parent_ptes[NR_PTE_CHAIN_ENTRIES];
147 struct hlist_node link;
148};
149
150/*
151 * kvm_mmu_page_role, below, is defined as:
152 *
153 * bits 0:3 - total guest paging levels (2-4, or zero for real mode)
154 * bits 4:7 - page table level for this shadow (1-4)
155 * bits 8:9 - page table quadrant for 2-level guests
156 * bit 16 - "metaphysical" - gfn is not a real page (huge page/real mode)
157 * bits 17:19 - common access permissions for all ptes in this shadow page
158 */
159union kvm_mmu_page_role {
160 unsigned word;
161 struct {
7d76b4d3
JP		 162 unsigned glevels:4;
163 unsigned level:4;
164 unsigned quadrant:2;
165 unsigned pad_for_nice_hex_output:6;
166 unsigned metaphysical:1;
167 unsigned access:3;
2e53d63a 168 unsigned invalid:1;
d657a98e
ZX		 169 };
170};
171
172struct kvm_mmu_page {
173 struct list_head link;
174 struct hlist_node hash_link;
175
176 /*
177 * The following two entries are used to key the shadow page in the
178 * hash table.
179 */
180 gfn_t gfn;
181 union kvm_mmu_page_role role;
182
183 u64 *spt;
184 /* hold the gfn of each spte inside spt */
185 gfn_t *gfns;
186 unsigned long slot_bitmap; /* One bit set per slot which has memory
187 * in this shadow page.
188 */
189 int multimapped; /* More than one parent_pte? */
190 int root_count; /* Currently serving as active root */
191 union {
192 u64 *parent_pte; /* !multimapped */
193 struct hlist_head parent_ptes; /* multimapped, kvm_pte_chain */
194 };
195};
196
197/*
198 * x86 supports 3 paging modes (4-level 64-bit, 3-level 64-bit, and 2-level
199 * 32-bit). The kvm_mmu structure abstracts the details of the current mmu
200 * mode.
201 */
202struct kvm_mmu {
203 void (*new_cr3)(struct kvm_vcpu *vcpu);
204 int (*page_fault)(struct kvm_vcpu *vcpu, gva_t gva, u32 err);
205 void (*free)(struct kvm_vcpu *vcpu);
206 gpa_t (*gva_to_gpa)(struct kvm_vcpu *vcpu, gva_t gva);
207 void (*prefetch_page)(struct kvm_vcpu *vcpu,
208 struct kvm_mmu_page *page);
209 hpa_t root_hpa;
210 int root_level;
211 int shadow_root_level;
212
213 u64 *pae_root;
214};
215
ad312c7c 216struct kvm_vcpu_arch {
34c16eec
ZX		 217 u64 host_tsc;
218 int interrupt_window_open;
219 unsigned long irq_summary; /* bit vector: 1 per word in irq_pending */
220 DECLARE_BITMAP(irq_pending, KVM_NR_INTERRUPTS);
221 unsigned long regs[NR_VCPU_REGS]; /* for rsp: vcpu_load_rsp_rip() */
222 unsigned long rip; /* needs vcpu_load_rsp_rip() */
223
224 unsigned long cr0;
225 unsigned long cr2;
226 unsigned long cr3;
227 unsigned long cr4;
228 unsigned long cr8;
229 u64 pdptrs[4]; /* pae */
230 u64 shadow_efer;
231 u64 apic_base;
232 struct kvm_lapic *apic; /* kernel irqchip context */
34c16eec
ZX		 233 int mp_state;
234 int sipi_vector;
235 u64 ia32_misc_enable_msr;
b209749f 236 bool tpr_access_reporting;
34c16eec
ZX		 237
238 struct kvm_mmu mmu;
239
240 struct kvm_mmu_memory_cache mmu_pte_chain_cache;
241 struct kvm_mmu_memory_cache mmu_rmap_desc_cache;
242 struct kvm_mmu_memory_cache mmu_page_cache;
243 struct kvm_mmu_memory_cache mmu_page_header_cache;
244
245 gfn_t last_pt_write_gfn;
246 int last_pt_write_count;
247 u64 *last_pte_updated;
1b7fcd32 248 gfn_t last_pte_gfn;
34c16eec 249
d7824fff 250 struct {
35149e21
AL		 251 gfn_t gfn; /* presumed gfn during guest pte update */
252 pfn_t pfn; /* pfn corresponding to that gfn */
05da4558 253 int largepage;
d7824fff
AK		 254 } update_pte;
255
34c16eec
ZX		 256 struct i387_fxsave_struct host_fx_image;
257 struct i387_fxsave_struct guest_fx_image;
258
259 gva_t mmio_fault_cr2;
260 struct kvm_pio_request pio;
261 void *pio_data;
262
298101da
AK		 263 struct kvm_queued_exception {
264 bool pending;
265 bool has_error_code;
266 u8 nr;
267 u32 error_code;
268 } exception;
269
34c16eec
ZX		 270 struct {
271 int active;
272 u8 save_iopl;
273 struct kvm_save_segment {
274 u16 selector;
275 unsigned long base;
276 u32 limit;
277 u32 ar;
278 } tr, es, ds, fs, gs;
279 } rmode;
280 int halt_request; /* real mode on Intel only */
281
282 int cpuid_nent;
07716717 283 struct kvm_cpuid_entry2 cpuid_entries[KVM_MAX_CPUID_ENTRIES];
34c16eec
ZX		 284 /* emulate context */
285
286 struct x86_emulate_ctxt emulate_ctxt;
18068523
GOC		 287
288 gpa_t time;
50d0a0f9
GH		 289 struct pvclock_vcpu_time_info hv_clock;
290 unsigned int hv_clock_tsc_khz;
18068523
GOC		 291 unsigned int time_offset;
292 struct page *time_page;
3419ffc8
SY		 293
294 bool nmi_pending;
9ba075a6
AK		 295
296 u64 mtrr[0x100];
34c16eec
ZX		 297};
298
d69fb81f
ZX		 299struct kvm_mem_alias {
300 gfn_t base_gfn;
301 unsigned long npages;
302 gfn_t target_gfn;
303};
304
305struct kvm_arch{
306 int naliases;
307 struct kvm_mem_alias aliases[KVM_ALIAS_SLOTS];
f05e70ac
ZX		 308
309 unsigned int n_free_mmu_pages;
310 unsigned int n_requested_mmu_pages;
311 unsigned int n_alloc_mmu_pages;
312 struct hlist_head mmu_page_hash[KVM_NUM_MMU_PAGES];
313 /*
314 * Hash table of struct kvm_mmu_page.
315 */
316 struct list_head active_mmu_pages;
d7deeeb0
ZX		 317 struct kvm_pic *vpic;
318 struct kvm_ioapic *vioapic;
7837699f 319 struct kvm_pit *vpit;
bfc6d222
ZX		 320
321 int round_robin_prev_vcpu;
322 unsigned int tss_addr;
323 struct page *apic_access_page;
18068523
GOC		 324
325 gpa_t wall_clock;
b7ebfb05
SY		 326
327 struct page *ept_identity_pagetable;
328 bool ept_identity_pagetable_done;
d69fb81f
ZX		 329};
330
0711456c
ZX		 331struct kvm_vm_stat {
332 u32 mmu_shadow_zapped;
333 u32 mmu_pte_write;
334 u32 mmu_pte_updated;
335 u32 mmu_pde_zapped;
336 u32 mmu_flooded;
337 u32 mmu_recycled;
dfc5aa00 338 u32 mmu_cache_miss;
0711456c 339 u32 remote_tlb_flush;
05da4558 340 u32 lpages;
0711456c
ZX		 341};
342
77b4c255
ZX		 343struct kvm_vcpu_stat {
344 u32 pf_fixed;
345 u32 pf_guest;
346 u32 tlb_flush;
347 u32 invlpg;
348
349 u32 exits;
350 u32 io_exits;
351 u32 mmio_exits;
352 u32 signal_exits;
353 u32 irq_window_exits;
f08864b4 354 u32 nmi_window_exits;
77b4c255
ZX		 355 u32 halt_exits;
356 u32 halt_wakeup;
357 u32 request_irq_exits;
358 u32 irq_exits;
359 u32 host_state_reload;
360 u32 efer_reload;
361 u32 fpu_reload;
362 u32 insn_emulation;
363 u32 insn_emulation_fail;
f11c3a8d 364 u32 hypercalls;
77b4c255 365};
ad312c7c 366
e01a1b57
HB		 367struct descriptor_table {
368 u16 limit;
369 unsigned long base;
370} __attribute__((packed));
371
ea4a5ff8
ZX		 372struct kvm_x86_ops {
373 int (*cpu_has_kvm_support)(void); /* __init */
374 int (*disabled_by_bios)(void); /* __init */
375 void (*hardware_enable)(void *dummy); /* __init */
376 void (*hardware_disable)(void *dummy);
377 void (*check_processor_compatibility)(void *rtn);
378 int (*hardware_setup)(void); /* __init */
379 void (*hardware_unsetup)(void); /* __exit */
774ead3a 380 bool (*cpu_has_accelerated_tpr)(void);
ea4a5ff8
ZX		 381
382 /* Create, but do not attach this VCPU */
383 struct kvm_vcpu *(*vcpu_create)(struct kvm *kvm, unsigned id);
384 void (*vcpu_free)(struct kvm_vcpu *vcpu);
385 int (*vcpu_reset)(struct kvm_vcpu *vcpu);
386
387 void (*prepare_guest_switch)(struct kvm_vcpu *vcpu);
388 void (*vcpu_load)(struct kvm_vcpu *vcpu, int cpu);
389 void (*vcpu_put)(struct kvm_vcpu *vcpu);
ea4a5ff8
ZX		 390
391 int (*set_guest_debug)(struct kvm_vcpu *vcpu,
392 struct kvm_debug_guest *dbg);
393 void (*guest_debug_pre)(struct kvm_vcpu *vcpu);
394 int (*get_msr)(struct kvm_vcpu *vcpu, u32 msr_index, u64 *pdata);
395 int (*set_msr)(struct kvm_vcpu *vcpu, u32 msr_index, u64 data);
396 u64 (*get_segment_base)(struct kvm_vcpu *vcpu, int seg);
397 void (*get_segment)(struct kvm_vcpu *vcpu,
398 struct kvm_segment *var, int seg);
2e4d2653 399 int (*get_cpl)(struct kvm_vcpu *vcpu);
ea4a5ff8
ZX		 400 void (*set_segment)(struct kvm_vcpu *vcpu,
401 struct kvm_segment *var, int seg);
402 void (*get_cs_db_l_bits)(struct kvm_vcpu *vcpu, int *db, int *l);
403 void (*decache_cr4_guest_bits)(struct kvm_vcpu *vcpu);
404 void (*set_cr0)(struct kvm_vcpu *vcpu, unsigned long cr0);
405 void (*set_cr3)(struct kvm_vcpu *vcpu, unsigned long cr3);
406 void (*set_cr4)(struct kvm_vcpu *vcpu, unsigned long cr4);
407 void (*set_efer)(struct kvm_vcpu *vcpu, u64 efer);
408 void (*get_idt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt);
409 void (*set_idt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt);
410 void (*get_gdt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt);
411 void (*set_gdt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt);
412 unsigned long (*get_dr)(struct kvm_vcpu *vcpu, int dr);
413 void (*set_dr)(struct kvm_vcpu *vcpu, int dr, unsigned long value,
414 int *exception);
415 void (*cache_regs)(struct kvm_vcpu *vcpu);
416 void (*decache_regs)(struct kvm_vcpu *vcpu);
417 unsigned long (*get_rflags)(struct kvm_vcpu *vcpu);
418 void (*set_rflags)(struct kvm_vcpu *vcpu, unsigned long rflags);
419
420 void (*tlb_flush)(struct kvm_vcpu *vcpu);
ea4a5ff8 421
ea4a5ff8
ZX		 422 void (*run)(struct kvm_vcpu *vcpu, struct kvm_run *run);
423 int (*handle_exit)(struct kvm_run *run, struct kvm_vcpu *vcpu);
424 void (*skip_emulated_instruction)(struct kvm_vcpu *vcpu);
425 void (*patch_hypercall)(struct kvm_vcpu *vcpu,
426 unsigned char *hypercall_addr);
427 int (*get_irq)(struct kvm_vcpu *vcpu);
428 void (*set_irq)(struct kvm_vcpu *vcpu, int vec);
298101da
AK		 429 void (*queue_exception)(struct kvm_vcpu *vcpu, unsigned nr,
430 bool has_error_code, u32 error_code);
431 bool (*exception_injected)(struct kvm_vcpu *vcpu);
ea4a5ff8
ZX		 432 void (*inject_pending_irq)(struct kvm_vcpu *vcpu);
433 void (*inject_pending_vectors)(struct kvm_vcpu *vcpu,
434 struct kvm_run *run);
435
436 int (*set_tss_addr)(struct kvm *kvm, unsigned int addr);
67253af5 437 int (*get_tdp_level)(void);
ea4a5ff8
ZX		 438};
439
97896d04
ZX		 440extern struct kvm_x86_ops *kvm_x86_ops;
441
54f1585a
ZX		 442int kvm_mmu_module_init(void);
443void kvm_mmu_module_exit(void);
444
445void kvm_mmu_destroy(struct kvm_vcpu *vcpu);
446int kvm_mmu_create(struct kvm_vcpu *vcpu);
447int kvm_mmu_setup(struct kvm_vcpu *vcpu);
448void kvm_mmu_set_nonpresent_ptes(u64 trap_pte, u64 notrap_pte);
7b52345e
SY		 449void kvm_mmu_set_base_ptes(u64 base_pte);
450void kvm_mmu_set_mask_ptes(u64 user_mask, u64 accessed_mask,
451 u64 dirty_mask, u64 nx_mask, u64 x_mask);
54f1585a
ZX		 452
453int kvm_mmu_reset_context(struct kvm_vcpu *vcpu);
454void kvm_mmu_slot_remove_write_access(struct kvm *kvm, int slot);
455void kvm_mmu_zap_all(struct kvm *kvm);
3ad82a7e 456unsigned int kvm_mmu_calculate_mmu_pages(struct kvm *kvm);
54f1585a
ZX		 457void kvm_mmu_change_mmu_pages(struct kvm *kvm, unsigned int kvm_nr_mmu_pages);
458
cc4b6871
JR		 459int load_pdptrs(struct kvm_vcpu *vcpu, unsigned long cr3);
460
3200f405 461int emulator_write_phys(struct kvm_vcpu *vcpu, gpa_t gpa,
9f811285 462 const void *val, int bytes);
2f333bcb
MT		 463int kvm_pv_mmu_op(struct kvm_vcpu *vcpu, unsigned long bytes,
464 gpa_t addr, unsigned long *ret);
465
466extern bool tdp_enabled;
9f811285 467
54f1585a
ZX		 468enum emulation_result {
469 EMULATE_DONE, /* no further processing */
470 EMULATE_DO_MMIO, /* kvm_run filled with mmio request */
471 EMULATE_FAIL, /* can't emulate this instruction */
472};
473
571008da
SY		 474#define EMULTYPE_NO_DECODE (1 << 0)
475#define EMULTYPE_TRAP_UD (1 << 1)
54f1585a 476int emulate_instruction(struct kvm_vcpu *vcpu, struct kvm_run *run,
571008da 477 unsigned long cr2, u16 error_code, int emulation_type);
54f1585a
ZX		 478void kvm_report_emulation_failure(struct kvm_vcpu *cvpu, const char *context);
479void realmode_lgdt(struct kvm_vcpu *vcpu, u16 size, unsigned long address);
480void realmode_lidt(struct kvm_vcpu *vcpu, u16 size, unsigned long address);
481void realmode_lmsw(struct kvm_vcpu *vcpu, unsigned long msw,
482 unsigned long *rflags);
483
484unsigned long realmode_get_cr(struct kvm_vcpu *vcpu, int cr);
485void realmode_set_cr(struct kvm_vcpu *vcpu, int cr, unsigned long value,
486 unsigned long *rflags);
f2b4b7dd 487void kvm_enable_efer_bits(u64);
54f1585a
ZX		 488int kvm_get_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 *data);
489int kvm_set_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 data);
490
491struct x86_emulate_ctxt;
492
493int kvm_emulate_pio(struct kvm_vcpu *vcpu, struct kvm_run *run, int in,
494 int size, unsigned port);
495int kvm_emulate_pio_string(struct kvm_vcpu *vcpu, struct kvm_run *run, int in,
496 int size, unsigned long count, int down,
497 gva_t address, int rep, unsigned port);
498void kvm_emulate_cpuid(struct kvm_vcpu *vcpu);
499int kvm_emulate_halt(struct kvm_vcpu *vcpu);
500int emulate_invlpg(struct kvm_vcpu *vcpu, gva_t address);
501int emulate_clts(struct kvm_vcpu *vcpu);
502int emulator_get_dr(struct x86_emulate_ctxt *ctxt, int dr,
503 unsigned long *dest);
504int emulator_set_dr(struct x86_emulate_ctxt *ctxt, int dr,
505 unsigned long value);
506
3e6e0aab
GT		 507void kvm_get_segment(struct kvm_vcpu *vcpu, struct kvm_segment *var, int seg);
508int kvm_load_segment_descriptor(struct kvm_vcpu *vcpu, u16 selector,
509 int type_bits, int seg);
510
37817f29
IE		 511int kvm_task_switch(struct kvm_vcpu *vcpu, u16 tss_selector, int reason);
512
2d3ad1f4 513void kvm_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0);
9c20456a
JR		 514void kvm_set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3);
515void kvm_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4);
516void kvm_set_cr8(struct kvm_vcpu *vcpu, unsigned long cr8);
2d3ad1f4
AK		 517unsigned long kvm_get_cr8(struct kvm_vcpu *vcpu);
518void kvm_lmsw(struct kvm_vcpu *vcpu, unsigned long msw);
54f1585a
ZX		 519void kvm_get_cs_db_l_bits(struct kvm_vcpu *vcpu, int *db, int *l);
520
521int kvm_get_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata);
522int kvm_set_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 data);
523
298101da
AK		 524void kvm_queue_exception(struct kvm_vcpu *vcpu, unsigned nr);
525void kvm_queue_exception_e(struct kvm_vcpu *vcpu, unsigned nr, u32 error_code);
c3c91fee
AK		 526void kvm_inject_page_fault(struct kvm_vcpu *vcpu, unsigned long cr2,
527 u32 error_code);
298101da 528
3419ffc8
SY		 529void kvm_inject_nmi(struct kvm_vcpu *vcpu);
530
54f1585a
ZX		 531void fx_init(struct kvm_vcpu *vcpu);
532
533int emulator_read_std(unsigned long addr,
534 void *val,
535 unsigned int bytes,
536 struct kvm_vcpu *vcpu);
537int emulator_write_emulated(unsigned long addr,
538 const void *val,
539 unsigned int bytes,
540 struct kvm_vcpu *vcpu);
541
542unsigned long segment_base(u16 selector);
543
d835dfec 544void kvm_mmu_flush_tlb(struct kvm_vcpu *vcpu);
54f1585a
ZX		 545void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa,
546 const u8 *new, int bytes);
547int kvm_mmu_unprotect_page_virt(struct kvm_vcpu *vcpu, gva_t gva);
548void __kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu);
549int kvm_mmu_load(struct kvm_vcpu *vcpu);
550void kvm_mmu_unload(struct kvm_vcpu *vcpu);
551
552int kvm_emulate_hypercall(struct kvm_vcpu *vcpu);
553
554int kvm_fix_hypercall(struct kvm_vcpu *vcpu);
555
3067714c 556int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t gva, u32 error_code);
34c16eec 557
18552672
JR		 558void kvm_enable_tdp(void);
559
a03490ed 560int load_pdptrs(struct kvm_vcpu *vcpu, unsigned long cr3);
de7d789a 561int complete_pio(struct kvm_vcpu *vcpu);
ec6d273d
ZX		 562
563static inline struct kvm_mmu_page *page_header(hpa_t shadow_page)
564{
565 struct page *page = pfn_to_page(shadow_page >> PAGE_SHIFT);
566
567 return (struct kvm_mmu_page *)page_private(page);
568}
569
d6e88aec 570static inline u16 kvm_read_fs(void)
ec6d273d
ZX		 571{
572 u16 seg;
573 asm("mov %%fs, %0" : "=g"(seg));
574 return seg;
575}
576
d6e88aec 577static inline u16 kvm_read_gs(void)
ec6d273d
ZX		 578{
579 u16 seg;
580 asm("mov %%gs, %0" : "=g"(seg));
581 return seg;
582}
583
d6e88aec 584static inline u16 kvm_read_ldt(void)
ec6d273d
ZX		 585{
586 u16 ldt;
587 asm("sldt %0" : "=g"(ldt));
588 return ldt;
589}
590
d6e88aec 591static inline void kvm_load_fs(u16 sel)
ec6d273d
ZX		 592{
593 asm("mov %0, %%fs" : : "rm"(sel));
594}
595
d6e88aec 596static inline void kvm_load_gs(u16 sel)
ec6d273d
ZX		 597{
598 asm("mov %0, %%gs" : : "rm"(sel));
599}
600
d6e88aec 601static inline void kvm_load_ldt(u16 sel)
ec6d273d
ZX		 602{
603 asm("lldt %0" : : "rm"(sel));
604}
ec6d273d 605
d6e88aec 606static inline void kvm_get_idt(struct descriptor_table *table)
ec6d273d
ZX		 607{
608 asm("sidt %0" : "=m"(*table));
609}
610
d6e88aec 611static inline void kvm_get_gdt(struct descriptor_table *table)
ec6d273d
ZX		 612{
613 asm("sgdt %0" : "=m"(*table));
614}
615
d6e88aec 616static inline unsigned long kvm_read_tr_base(void)
ec6d273d
ZX		 617{
618 u16 tr;
619 asm("str %0" : "=g"(tr));
620 return segment_base(tr);
621}
622
623#ifdef CONFIG_X86_64
624static inline unsigned long read_msr(unsigned long msr)
625{
626 u64 value;
627
628 rdmsrl(msr, value);
629 return value;
630}
631#endif
632
d6e88aec 633static inline void kvm_fx_save(struct i387_fxsave_struct *image)
ec6d273d
ZX		 634{
635 asm("fxsave (%0)":: "r" (image));
636}
637
d6e88aec 638static inline void kvm_fx_restore(struct i387_fxsave_struct *image)
ec6d273d
ZX		 639{
640 asm("fxrstor (%0)":: "r" (image));
641}
642
d6e88aec 643static inline void kvm_fx_finit(void)
ec6d273d
ZX		 644{
645 asm("finit");
646}
647
648static inline u32 get_rdx_init_val(void)
649{
650 return 0x600; /* P6 family */
651}
652
c1a5d4f9
AK		 653static inline void kvm_inject_gp(struct kvm_vcpu *vcpu, u32 error_code)
654{
655 kvm_queue_exception_e(vcpu, GP_VECTOR, error_code);
656}
657
ec6d273d
ZX		 658#define ASM_VMX_VMCLEAR_RAX ".byte 0x66, 0x0f, 0xc7, 0x30"
659#define ASM_VMX_VMLAUNCH ".byte 0x0f, 0x01, 0xc2"
660#define ASM_VMX_VMRESUME ".byte 0x0f, 0x01, 0xc3"
661#define ASM_VMX_VMPTRLD_RAX ".byte 0x0f, 0xc7, 0x30"
662#define ASM_VMX_VMREAD_RDX_RAX ".byte 0x0f, 0x78, 0xd0"
663#define ASM_VMX_VMWRITE_RAX_RDX ".byte 0x0f, 0x79, 0xd0"
664#define ASM_VMX_VMWRITE_RSP_RDX ".byte 0x0f, 0x79, 0xd4"
665#define ASM_VMX_VMXOFF ".byte 0x0f, 0x01, 0xc4"
666#define ASM_VMX_VMXON_RAX ".byte 0xf3, 0x0f, 0xc7, 0x30"
1439442c 667#define ASM_VMX_INVEPT ".byte 0x66, 0x0f, 0x38, 0x80, 0x08"
2384d2b3 668#define ASM_VMX_INVVPID ".byte 0x66, 0x0f, 0x38, 0x81, 0x08"
ec6d273d
ZX		 669
670#define MSR_IA32_TIME_STAMP_COUNTER 0x010
671
672#define TSS_IOPB_BASE_OFFSET 0x66
673#define TSS_BASE_SIZE 0x68
674#define TSS_IOPB_SIZE (65536 / 8)
675#define TSS_REDIRECTION_SIZE (256 / 8)
7d76b4d3
JP		 676#define RMODE_TSS_SIZE \
677 (TSS_BASE_SIZE + TSS_REDIRECTION_SIZE + TSS_IOPB_SIZE + 1)
53e0aa7b 678
37817f29
IE		 679enum {
680 TASK_SWITCH_CALL = 0,
681 TASK_SWITCH_IRET = 1,
682 TASK_SWITCH_JMP = 2,
683 TASK_SWITCH_GATE = 3,
684};
685
2714d1d3
FEL		 686#define KVMTRACE_5D(evt, vcpu, d1, d2, d3, d4, d5, name) \
687 trace_mark(kvm_trace_##name, "%u %p %u %u %u %u %u %u", KVM_TRC_##evt, \
688 vcpu, 5, d1, d2, d3, d4, d5)
689#define KVMTRACE_4D(evt, vcpu, d1, d2, d3, d4, name) \
690 trace_mark(kvm_trace_##name, "%u %p %u %u %u %u %u %u", KVM_TRC_##evt, \
691 vcpu, 4, d1, d2, d3, d4, 0)
692#define KVMTRACE_3D(evt, vcpu, d1, d2, d3, name) \
693 trace_mark(kvm_trace_##name, "%u %p %u %u %u %u %u %u", KVM_TRC_##evt, \
694 vcpu, 3, d1, d2, d3, 0, 0)
695#define KVMTRACE_2D(evt, vcpu, d1, d2, name) \
696 trace_mark(kvm_trace_##name, "%u %p %u %u %u %u %u %u", KVM_TRC_##evt, \
697 vcpu, 2, d1, d2, 0, 0, 0)
698#define KVMTRACE_1D(evt, vcpu, d1, name) \
699 trace_mark(kvm_trace_##name, "%u %p %u %u %u %u %u %u", KVM_TRC_##evt, \
700 vcpu, 1, d1, 0, 0, 0, 0)
701#define KVMTRACE_0D(evt, vcpu, name) \
702 trace_mark(kvm_trace_##name, "%u %p %u %u %u %u %u %u", KVM_TRC_##evt, \
703 vcpu, 0, 0, 0, 0, 0, 0)
704
4ecac3fd 705#ifdef CONFIG_64BIT
33a37eb4
IM		 706# define KVM_EX_ENTRY ".quad"
707# define KVM_EX_PUSH "pushq"
4ecac3fd 708#else
33a37eb4
IM		 709# define KVM_EX_ENTRY ".long"
710# define KVM_EX_PUSH "pushl"
4ecac3fd
AK		 711#endif
712
713/*
714 * Hardware virtualization extension instructions may fault if a
715 * reboot turns off virtualization while processes are running.
716 * Trap the fault and ignore the instruction if that happens.
717 */
718asmlinkage void kvm_handle_fault_on_reboot(void);
719
720#define __kvm_handle_fault_on_reboot(insn) \
721 "666: " insn "\n\t" \
722 ".pushsection .text.fixup, \"ax\" \n" \
723 "667: \n\t" \
33a37eb4 724 KVM_EX_PUSH " $666b \n\t" \
4ecac3fd
AK		 725 "jmp kvm_handle_fault_on_reboot \n\t" \
726 ".popsection \n\t" \
727 ".pushsection __ex_table, \"a\" \n\t" \
728 KVM_EX_ENTRY " 666b, 667b \n\t" \
729 ".popsection"
730
043405e1 731#endif
kernel source for telekom puls (alcatel/mediatek)