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Carsten Otte043405e2007-10-10 17:16:19 +02001#/*
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
11#ifndef KVM_X86_H
12#define KVM_X86_H
13
Zhang Xiantao34c16ee2007-10-20 15:34:38 +080014#include <linux/types.h>
15#include <linux/mm.h>
16
17#include <linux/kvm.h>
18#include <linux/kvm_para.h>
19
Hollis Blancharde01a1b52007-12-03 15:30:25 -060020#include <asm/desc.h>
21
Zhang Xiantaod657a982007-12-14 09:41:22 +080022#include "types.h"
23
Zhang Xiantaocd6e8f82007-11-19 14:33:37 +080024#define CR3_PAE_RESERVED_BITS ((X86_CR3_PWT | X86_CR3_PCD) - 1)
25#define CR3_NONPAE_RESERVED_BITS ((PAGE_SIZE-1) & ~(X86_CR3_PWT | X86_CR3_PCD))
26#define CR3_L_MODE_RESERVED_BITS (CR3_NONPAE_RESERVED_BITS|0xFFFFFF0000000000ULL)
27
28#define KVM_GUEST_CR0_MASK \
29 (X86_CR0_PG | X86_CR0_PE | X86_CR0_WP | X86_CR0_NE \
30 | X86_CR0_NW | X86_CR0_CD)
31#define KVM_VM_CR0_ALWAYS_ON \
32 (X86_CR0_PG | X86_CR0_PE | X86_CR0_WP | X86_CR0_NE | X86_CR0_TS \
33 | X86_CR0_MP)
34#define KVM_GUEST_CR4_MASK \
35 (X86_CR4_VME | X86_CR4_PSE | X86_CR4_PAE | X86_CR4_PGE | X86_CR4_VMXE)
36#define KVM_PMODE_VM_CR4_ALWAYS_ON (X86_CR4_PAE | X86_CR4_VMXE)
37#define KVM_RMODE_VM_CR4_ALWAYS_ON (X86_CR4_VME | X86_CR4_PAE | X86_CR4_VMXE)
38
39#define INVALID_PAGE (~(hpa_t)0)
40#define UNMAPPED_GVA (~(gpa_t)0)
41
42#define DE_VECTOR 0
43#define UD_VECTOR 6
44#define NM_VECTOR 7
45#define DF_VECTOR 8
46#define TS_VECTOR 10
47#define NP_VECTOR 11
48#define SS_VECTOR 12
49#define GP_VECTOR 13
50#define PF_VECTOR 14
51
52#define SELECTOR_TI_MASK (1 << 2)
53#define SELECTOR_RPL_MASK 0x03
54
55#define IOPL_SHIFT 12
56
Zhang Xiantaod657a982007-12-14 09:41:22 +080057#define KVM_PERMILLE_MMU_PAGES 20
58#define KVM_MIN_ALLOC_MMU_PAGES 64
59#define KVM_NUM_MMU_PAGES 1024
60#define KVM_MIN_FREE_MMU_PAGES 5
61#define KVM_REFILL_PAGES 25
62#define KVM_MAX_CPUID_ENTRIES 40
63
Zhang Xiantaoe9b11c12007-11-14 20:38:21 +080064extern spinlock_t kvm_lock;
65extern struct list_head vm_list;
66
Zhang Xiantaod657a982007-12-14 09:41:22 +080067struct kvm_vcpu;
68struct kvm;
69
Zhang Xiantao2b3ccfa2007-11-19 14:56:05 +080070enum {
71 VCPU_REGS_RAX = 0,
72 VCPU_REGS_RCX = 1,
73 VCPU_REGS_RDX = 2,
74 VCPU_REGS_RBX = 3,
75 VCPU_REGS_RSP = 4,
76 VCPU_REGS_RBP = 5,
77 VCPU_REGS_RSI = 6,
78 VCPU_REGS_RDI = 7,
79#ifdef CONFIG_X86_64
80 VCPU_REGS_R8 = 8,
81 VCPU_REGS_R9 = 9,
82 VCPU_REGS_R10 = 10,
83 VCPU_REGS_R11 = 11,
84 VCPU_REGS_R12 = 12,
85 VCPU_REGS_R13 = 13,
86 VCPU_REGS_R14 = 14,
87 VCPU_REGS_R15 = 15,
88#endif
89 NR_VCPU_REGS
90};
91
92enum {
93 VCPU_SREG_CS,
94 VCPU_SREG_DS,
95 VCPU_SREG_ES,
96 VCPU_SREG_FS,
97 VCPU_SREG_GS,
98 VCPU_SREG_SS,
99 VCPU_SREG_TR,
100 VCPU_SREG_LDTR,
101};
102
103#include "x86_emulate.h"
104
Zhang Xiantaod657a982007-12-14 09:41:22 +0800105#define KVM_NR_MEM_OBJS 40
106
107/*
108 * We don't want allocation failures within the mmu code, so we preallocate
109 * enough memory for a single page fault in a cache.
110 */
111struct kvm_mmu_memory_cache {
112 int nobjs;
113 void *objects[KVM_NR_MEM_OBJS];
114};
115
116#define NR_PTE_CHAIN_ENTRIES 5
117
118struct kvm_pte_chain {
119 u64 *parent_ptes[NR_PTE_CHAIN_ENTRIES];
120 struct hlist_node link;
121};
122
123/*
124 * kvm_mmu_page_role, below, is defined as:
125 *
126 * bits 0:3 - total guest paging levels (2-4, or zero for real mode)
127 * bits 4:7 - page table level for this shadow (1-4)
128 * bits 8:9 - page table quadrant for 2-level guests
129 * bit 16 - "metaphysical" - gfn is not a real page (huge page/real mode)
130 * bits 17:19 - common access permissions for all ptes in this shadow page
131 */
132union kvm_mmu_page_role {
133 unsigned word;
134 struct {
135 unsigned glevels : 4;
136 unsigned level : 4;
137 unsigned quadrant : 2;
138 unsigned pad_for_nice_hex_output : 6;
139 unsigned metaphysical : 1;
140 unsigned access : 3;
141 };
142};
143
144struct kvm_mmu_page {
145 struct list_head link;
146 struct hlist_node hash_link;
147
148 /*
149 * The following two entries are used to key the shadow page in the
150 * hash table.
151 */
152 gfn_t gfn;
153 union kvm_mmu_page_role role;
154
155 u64 *spt;
156 /* hold the gfn of each spte inside spt */
157 gfn_t *gfns;
158 unsigned long slot_bitmap; /* One bit set per slot which has memory
159 * in this shadow page.
160 */
161 int multimapped; /* More than one parent_pte? */
162 int root_count; /* Currently serving as active root */
163 union {
164 u64 *parent_pte; /* !multimapped */
165 struct hlist_head parent_ptes; /* multimapped, kvm_pte_chain */
166 };
167};
168
169/*
170 * x86 supports 3 paging modes (4-level 64-bit, 3-level 64-bit, and 2-level
171 * 32-bit). The kvm_mmu structure abstracts the details of the current mmu
172 * mode.
173 */
174struct kvm_mmu {
175 void (*new_cr3)(struct kvm_vcpu *vcpu);
176 int (*page_fault)(struct kvm_vcpu *vcpu, gva_t gva, u32 err);
177 void (*free)(struct kvm_vcpu *vcpu);
178 gpa_t (*gva_to_gpa)(struct kvm_vcpu *vcpu, gva_t gva);
179 void (*prefetch_page)(struct kvm_vcpu *vcpu,
180 struct kvm_mmu_page *page);
181 hpa_t root_hpa;
182 int root_level;
183 int shadow_root_level;
184
185 u64 *pae_root;
186};
187
Zhang Xiantaoad312c72007-12-13 23:50:52 +0800188struct kvm_vcpu_arch {
Zhang Xiantao34c16ee2007-10-20 15:34:38 +0800189 u64 host_tsc;
190 int interrupt_window_open;
191 unsigned long irq_summary; /* bit vector: 1 per word in irq_pending */
192 DECLARE_BITMAP(irq_pending, KVM_NR_INTERRUPTS);
193 unsigned long regs[NR_VCPU_REGS]; /* for rsp: vcpu_load_rsp_rip() */
194 unsigned long rip; /* needs vcpu_load_rsp_rip() */
195
196 unsigned long cr0;
197 unsigned long cr2;
198 unsigned long cr3;
199 unsigned long cr4;
200 unsigned long cr8;
201 u64 pdptrs[4]; /* pae */
202 u64 shadow_efer;
203 u64 apic_base;
204 struct kvm_lapic *apic; /* kernel irqchip context */
205#define VCPU_MP_STATE_RUNNABLE 0
206#define VCPU_MP_STATE_UNINITIALIZED 1
207#define VCPU_MP_STATE_INIT_RECEIVED 2
208#define VCPU_MP_STATE_SIPI_RECEIVED 3
209#define VCPU_MP_STATE_HALTED 4
210 int mp_state;
211 int sipi_vector;
212 u64 ia32_misc_enable_msr;
213
214 struct kvm_mmu mmu;
215
216 struct kvm_mmu_memory_cache mmu_pte_chain_cache;
217 struct kvm_mmu_memory_cache mmu_rmap_desc_cache;
218 struct kvm_mmu_memory_cache mmu_page_cache;
219 struct kvm_mmu_memory_cache mmu_page_header_cache;
220
221 gfn_t last_pt_write_gfn;
222 int last_pt_write_count;
223 u64 *last_pte_updated;
224
Zhang Xiantao34c16ee2007-10-20 15:34:38 +0800225 struct i387_fxsave_struct host_fx_image;
226 struct i387_fxsave_struct guest_fx_image;
227
228 gva_t mmio_fault_cr2;
229 struct kvm_pio_request pio;
230 void *pio_data;
231
Avi Kivity298101d2007-11-25 13:41:11 +0200232 struct kvm_queued_exception {
233 bool pending;
234 bool has_error_code;
235 u8 nr;
236 u32 error_code;
237 } exception;
238
Zhang Xiantao34c16ee2007-10-20 15:34:38 +0800239 struct {
240 int active;
241 u8 save_iopl;
242 struct kvm_save_segment {
243 u16 selector;
244 unsigned long base;
245 u32 limit;
246 u32 ar;
247 } tr, es, ds, fs, gs;
248 } rmode;
249 int halt_request; /* real mode on Intel only */
250
251 int cpuid_nent;
Dan Kenigsberg07716712007-11-21 17:10:04 +0200252 struct kvm_cpuid_entry2 cpuid_entries[KVM_MAX_CPUID_ENTRIES];
Zhang Xiantao34c16ee2007-10-20 15:34:38 +0800253 /* emulate context */
254
255 struct x86_emulate_ctxt emulate_ctxt;
256};
257
Zhang Xiantao77b4c252007-12-14 09:49:26 +0800258struct kvm_vcpu_stat {
259 u32 pf_fixed;
260 u32 pf_guest;
261 u32 tlb_flush;
262 u32 invlpg;
263
264 u32 exits;
265 u32 io_exits;
266 u32 mmio_exits;
267 u32 signal_exits;
268 u32 irq_window_exits;
269 u32 halt_exits;
270 u32 halt_wakeup;
271 u32 request_irq_exits;
272 u32 irq_exits;
273 u32 host_state_reload;
274 u32 efer_reload;
275 u32 fpu_reload;
276 u32 insn_emulation;
277 u32 insn_emulation_fail;
278};
Zhang Xiantaoad312c72007-12-13 23:50:52 +0800279
Hollis Blancharde01a1b52007-12-03 15:30:25 -0600280struct descriptor_table {
281 u16 limit;
282 unsigned long base;
283} __attribute__((packed));
284
Zhang Xiantaoea4a5ff2007-11-19 14:40:47 +0800285struct kvm_x86_ops {
286 int (*cpu_has_kvm_support)(void); /* __init */
287 int (*disabled_by_bios)(void); /* __init */
288 void (*hardware_enable)(void *dummy); /* __init */
289 void (*hardware_disable)(void *dummy);
290 void (*check_processor_compatibility)(void *rtn);
291 int (*hardware_setup)(void); /* __init */
292 void (*hardware_unsetup)(void); /* __exit */
293
294 /* Create, but do not attach this VCPU */
295 struct kvm_vcpu *(*vcpu_create)(struct kvm *kvm, unsigned id);
296 void (*vcpu_free)(struct kvm_vcpu *vcpu);
297 int (*vcpu_reset)(struct kvm_vcpu *vcpu);
298
299 void (*prepare_guest_switch)(struct kvm_vcpu *vcpu);
300 void (*vcpu_load)(struct kvm_vcpu *vcpu, int cpu);
301 void (*vcpu_put)(struct kvm_vcpu *vcpu);
302 void (*vcpu_decache)(struct kvm_vcpu *vcpu);
303
304 int (*set_guest_debug)(struct kvm_vcpu *vcpu,
305 struct kvm_debug_guest *dbg);
306 void (*guest_debug_pre)(struct kvm_vcpu *vcpu);
307 int (*get_msr)(struct kvm_vcpu *vcpu, u32 msr_index, u64 *pdata);
308 int (*set_msr)(struct kvm_vcpu *vcpu, u32 msr_index, u64 data);
309 u64 (*get_segment_base)(struct kvm_vcpu *vcpu, int seg);
310 void (*get_segment)(struct kvm_vcpu *vcpu,
311 struct kvm_segment *var, int seg);
312 void (*set_segment)(struct kvm_vcpu *vcpu,
313 struct kvm_segment *var, int seg);
314 void (*get_cs_db_l_bits)(struct kvm_vcpu *vcpu, int *db, int *l);
315 void (*decache_cr4_guest_bits)(struct kvm_vcpu *vcpu);
316 void (*set_cr0)(struct kvm_vcpu *vcpu, unsigned long cr0);
317 void (*set_cr3)(struct kvm_vcpu *vcpu, unsigned long cr3);
318 void (*set_cr4)(struct kvm_vcpu *vcpu, unsigned long cr4);
319 void (*set_efer)(struct kvm_vcpu *vcpu, u64 efer);
320 void (*get_idt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt);
321 void (*set_idt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt);
322 void (*get_gdt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt);
323 void (*set_gdt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt);
324 unsigned long (*get_dr)(struct kvm_vcpu *vcpu, int dr);
325 void (*set_dr)(struct kvm_vcpu *vcpu, int dr, unsigned long value,
326 int *exception);
327 void (*cache_regs)(struct kvm_vcpu *vcpu);
328 void (*decache_regs)(struct kvm_vcpu *vcpu);
329 unsigned long (*get_rflags)(struct kvm_vcpu *vcpu);
330 void (*set_rflags)(struct kvm_vcpu *vcpu, unsigned long rflags);
331
332 void (*tlb_flush)(struct kvm_vcpu *vcpu);
Zhang Xiantaoea4a5ff2007-11-19 14:40:47 +0800333
Zhang Xiantaoea4a5ff2007-11-19 14:40:47 +0800334 void (*run)(struct kvm_vcpu *vcpu, struct kvm_run *run);
335 int (*handle_exit)(struct kvm_run *run, struct kvm_vcpu *vcpu);
336 void (*skip_emulated_instruction)(struct kvm_vcpu *vcpu);
337 void (*patch_hypercall)(struct kvm_vcpu *vcpu,
338 unsigned char *hypercall_addr);
339 int (*get_irq)(struct kvm_vcpu *vcpu);
340 void (*set_irq)(struct kvm_vcpu *vcpu, int vec);
Avi Kivity298101d2007-11-25 13:41:11 +0200341 void (*queue_exception)(struct kvm_vcpu *vcpu, unsigned nr,
342 bool has_error_code, u32 error_code);
343 bool (*exception_injected)(struct kvm_vcpu *vcpu);
Zhang Xiantaoea4a5ff2007-11-19 14:40:47 +0800344 void (*inject_pending_irq)(struct kvm_vcpu *vcpu);
345 void (*inject_pending_vectors)(struct kvm_vcpu *vcpu,
346 struct kvm_run *run);
347
348 int (*set_tss_addr)(struct kvm *kvm, unsigned int addr);
349};
350
Zhang Xiantao97896d02007-11-14 20:09:30 +0800351extern struct kvm_x86_ops *kvm_x86_ops;
352
Zhang Xiantao54f15852007-11-19 15:24:28 +0800353int kvm_mmu_module_init(void);
354void kvm_mmu_module_exit(void);
355
356void kvm_mmu_destroy(struct kvm_vcpu *vcpu);
357int kvm_mmu_create(struct kvm_vcpu *vcpu);
358int kvm_mmu_setup(struct kvm_vcpu *vcpu);
359void kvm_mmu_set_nonpresent_ptes(u64 trap_pte, u64 notrap_pte);
360
361int kvm_mmu_reset_context(struct kvm_vcpu *vcpu);
362void kvm_mmu_slot_remove_write_access(struct kvm *kvm, int slot);
363void kvm_mmu_zap_all(struct kvm *kvm);
Zhang Xiantao3ad82a72007-11-20 13:11:38 +0800364unsigned int kvm_mmu_calculate_mmu_pages(struct kvm *kvm);
Zhang Xiantao54f15852007-11-19 15:24:28 +0800365void kvm_mmu_change_mmu_pages(struct kvm *kvm, unsigned int kvm_nr_mmu_pages);
366
367enum emulation_result {
368 EMULATE_DONE, /* no further processing */
369 EMULATE_DO_MMIO, /* kvm_run filled with mmio request */
370 EMULATE_FAIL, /* can't emulate this instruction */
371};
372
373int emulate_instruction(struct kvm_vcpu *vcpu, struct kvm_run *run,
374 unsigned long cr2, u16 error_code, int no_decode);
375void kvm_report_emulation_failure(struct kvm_vcpu *cvpu, const char *context);
376void realmode_lgdt(struct kvm_vcpu *vcpu, u16 size, unsigned long address);
377void realmode_lidt(struct kvm_vcpu *vcpu, u16 size, unsigned long address);
378void realmode_lmsw(struct kvm_vcpu *vcpu, unsigned long msw,
379 unsigned long *rflags);
380
381unsigned long realmode_get_cr(struct kvm_vcpu *vcpu, int cr);
382void realmode_set_cr(struct kvm_vcpu *vcpu, int cr, unsigned long value,
383 unsigned long *rflags);
384int kvm_get_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 *data);
385int kvm_set_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 data);
386
387struct x86_emulate_ctxt;
388
389int kvm_emulate_pio(struct kvm_vcpu *vcpu, struct kvm_run *run, int in,
390 int size, unsigned port);
391int kvm_emulate_pio_string(struct kvm_vcpu *vcpu, struct kvm_run *run, int in,
392 int size, unsigned long count, int down,
393 gva_t address, int rep, unsigned port);
394void kvm_emulate_cpuid(struct kvm_vcpu *vcpu);
395int kvm_emulate_halt(struct kvm_vcpu *vcpu);
396int emulate_invlpg(struct kvm_vcpu *vcpu, gva_t address);
397int emulate_clts(struct kvm_vcpu *vcpu);
398int emulator_get_dr(struct x86_emulate_ctxt *ctxt, int dr,
399 unsigned long *dest);
400int emulator_set_dr(struct x86_emulate_ctxt *ctxt, int dr,
401 unsigned long value);
402
403void set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0);
404void set_cr3(struct kvm_vcpu *vcpu, unsigned long cr0);
405void set_cr4(struct kvm_vcpu *vcpu, unsigned long cr0);
406void set_cr8(struct kvm_vcpu *vcpu, unsigned long cr0);
407unsigned long get_cr8(struct kvm_vcpu *vcpu);
408void lmsw(struct kvm_vcpu *vcpu, unsigned long msw);
409void kvm_get_cs_db_l_bits(struct kvm_vcpu *vcpu, int *db, int *l);
410
411int kvm_get_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata);
412int kvm_set_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 data);
413
Avi Kivity298101d2007-11-25 13:41:11 +0200414void kvm_queue_exception(struct kvm_vcpu *vcpu, unsigned nr);
415void kvm_queue_exception_e(struct kvm_vcpu *vcpu, unsigned nr, u32 error_code);
Avi Kivityc3c91fe2007-11-25 14:04:58 +0200416void kvm_inject_page_fault(struct kvm_vcpu *vcpu, unsigned long cr2,
417 u32 error_code);
Avi Kivity298101d2007-11-25 13:41:11 +0200418
Zhang Xiantao54f15852007-11-19 15:24:28 +0800419void fx_init(struct kvm_vcpu *vcpu);
420
421int emulator_read_std(unsigned long addr,
422 void *val,
423 unsigned int bytes,
424 struct kvm_vcpu *vcpu);
425int emulator_write_emulated(unsigned long addr,
426 const void *val,
427 unsigned int bytes,
428 struct kvm_vcpu *vcpu);
429
430unsigned long segment_base(u16 selector);
431
Avi Kivityd835dfe2007-11-21 02:57:59 +0200432void kvm_mmu_flush_tlb(struct kvm_vcpu *vcpu);
Zhang Xiantao54f15852007-11-19 15:24:28 +0800433void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa,
434 const u8 *new, int bytes);
435int kvm_mmu_unprotect_page_virt(struct kvm_vcpu *vcpu, gva_t gva);
436void __kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu);
437int kvm_mmu_load(struct kvm_vcpu *vcpu);
438void kvm_mmu_unload(struct kvm_vcpu *vcpu);
439
440int kvm_emulate_hypercall(struct kvm_vcpu *vcpu);
441
442int kvm_fix_hypercall(struct kvm_vcpu *vcpu);
443
Avi Kivity30677142007-10-28 18:48:59 +0200444int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t gva, u32 error_code);
Zhang Xiantao34c16ee2007-10-20 15:34:38 +0800445
Carsten Ottea03490e2007-10-29 16:09:35 +0100446int load_pdptrs(struct kvm_vcpu *vcpu, unsigned long cr3);
Carsten Ottede7d7892007-10-30 18:44:25 +0100447int complete_pio(struct kvm_vcpu *vcpu);
Zhang Xiantaoec6d2732007-11-19 15:08:31 +0800448
449static inline struct kvm_mmu_page *page_header(hpa_t shadow_page)
450{
451 struct page *page = pfn_to_page(shadow_page >> PAGE_SHIFT);
452
453 return (struct kvm_mmu_page *)page_private(page);
454}
455
456static inline u16 read_fs(void)
457{
458 u16 seg;
459 asm("mov %%fs, %0" : "=g"(seg));
460 return seg;
461}
462
463static inline u16 read_gs(void)
464{
465 u16 seg;
466 asm("mov %%gs, %0" : "=g"(seg));
467 return seg;
468}
469
470static inline u16 read_ldt(void)
471{
472 u16 ldt;
473 asm("sldt %0" : "=g"(ldt));
474 return ldt;
475}
476
477static inline void load_fs(u16 sel)
478{
479 asm("mov %0, %%fs" : : "rm"(sel));
480}
481
482static inline void load_gs(u16 sel)
483{
484 asm("mov %0, %%gs" : : "rm"(sel));
485}
486
487#ifndef load_ldt
488static inline void load_ldt(u16 sel)
489{
490 asm("lldt %0" : : "rm"(sel));
491}
492#endif
493
494static inline void get_idt(struct descriptor_table *table)
495{
496 asm("sidt %0" : "=m"(*table));
497}
498
499static inline void get_gdt(struct descriptor_table *table)
500{
501 asm("sgdt %0" : "=m"(*table));
502}
503
504static inline unsigned long read_tr_base(void)
505{
506 u16 tr;
507 asm("str %0" : "=g"(tr));
508 return segment_base(tr);
509}
510
511#ifdef CONFIG_X86_64
512static inline unsigned long read_msr(unsigned long msr)
513{
514 u64 value;
515
516 rdmsrl(msr, value);
517 return value;
518}
519#endif
520
521static inline void fx_save(struct i387_fxsave_struct *image)
522{
523 asm("fxsave (%0)":: "r" (image));
524}
525
526static inline void fx_restore(struct i387_fxsave_struct *image)
527{
528 asm("fxrstor (%0)":: "r" (image));
529}
530
531static inline void fpu_init(void)
532{
533 asm("finit");
534}
535
536static inline u32 get_rdx_init_val(void)
537{
538 return 0x600; /* P6 family */
539}
540
Avi Kivityc1a5d4f2007-11-25 14:12:03 +0200541static inline void kvm_inject_gp(struct kvm_vcpu *vcpu, u32 error_code)
542{
543 kvm_queue_exception_e(vcpu, GP_VECTOR, error_code);
544}
545
Zhang Xiantaoec6d2732007-11-19 15:08:31 +0800546#define ASM_VMX_VMCLEAR_RAX ".byte 0x66, 0x0f, 0xc7, 0x30"
547#define ASM_VMX_VMLAUNCH ".byte 0x0f, 0x01, 0xc2"
548#define ASM_VMX_VMRESUME ".byte 0x0f, 0x01, 0xc3"
549#define ASM_VMX_VMPTRLD_RAX ".byte 0x0f, 0xc7, 0x30"
550#define ASM_VMX_VMREAD_RDX_RAX ".byte 0x0f, 0x78, 0xd0"
551#define ASM_VMX_VMWRITE_RAX_RDX ".byte 0x0f, 0x79, 0xd0"
552#define ASM_VMX_VMWRITE_RSP_RDX ".byte 0x0f, 0x79, 0xd4"
553#define ASM_VMX_VMXOFF ".byte 0x0f, 0x01, 0xc4"
554#define ASM_VMX_VMXON_RAX ".byte 0xf3, 0x0f, 0xc7, 0x30"
555
556#define MSR_IA32_TIME_STAMP_COUNTER 0x010
557
558#define TSS_IOPB_BASE_OFFSET 0x66
559#define TSS_BASE_SIZE 0x68
560#define TSS_IOPB_SIZE (65536 / 8)
561#define TSS_REDIRECTION_SIZE (256 / 8)
562#define RMODE_TSS_SIZE (TSS_BASE_SIZE + TSS_REDIRECTION_SIZE + TSS_IOPB_SIZE + 1)
Hollis Blanchard53e0aa72007-12-03 16:15:26 -0600563
Carsten Otte043405e2007-10-10 17:16:19 +0200564#endif