drivers/kvm/kvm.h

   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>
  13 #include <linux/mm.h>
  14
  15 #include "vmx.h"
  16 #include <linux/kvm.h>
  17
  18 #define CR0_PE_MASK (1ULL << 0)
  19 #define CR0_TS_MASK (1ULL << 3)
  20 #define CR0_NE_MASK (1ULL << 5)
  21 #define CR0_WP_MASK (1ULL << 16)
  22 #define CR0_NW_MASK (1ULL << 29)
  23 #define CR0_CD_MASK (1ULL << 30)
  24 #define CR0_PG_MASK (1ULL << 31)
  25
  26 #define CR3_WPT_MASK (1ULL << 3)
  27 #define CR3_PCD_MASK (1ULL << 4)
  28
  29 #define CR3_RESEVED_BITS 0x07ULL
  30 #define CR3_L_MODE_RESEVED_BITS (~((1ULL << 40) - 1) | 0x0fe7ULL)
  31 #define CR3_FLAGS_MASK ((1ULL << 5) - 1)
  32
  33 #define CR4_VME_MASK (1ULL << 0)
  34 #define CR4_PSE_MASK (1ULL << 4)
  35 #define CR4_PAE_MASK (1ULL << 5)
  36 #define CR4_PGE_MASK (1ULL << 7)
  37 #define CR4_VMXE_MASK (1ULL << 13)
  38
  39 #define KVM_GUEST_CR0_MASK \
  40         (CR0_PG_MASK | CR0_PE_MASK | CR0_WP_MASK | CR0_NE_MASK \
  41          | CR0_NW_MASK | CR0_CD_MASK)
  42 #define KVM_VM_CR0_ALWAYS_ON \
  43         (CR0_PG_MASK | CR0_PE_MASK | CR0_WP_MASK | CR0_NE_MASK)
  44 #define KVM_GUEST_CR4_MASK \
  45         (CR4_PSE_MASK | CR4_PAE_MASK | CR4_PGE_MASK | CR4_VMXE_MASK | CR4_VME_MASK)
  46 #define KVM_PMODE_VM_CR4_ALWAYS_ON (CR4_VMXE_MASK | CR4_PAE_MASK)
  47 #define KVM_RMODE_VM_CR4_ALWAYS_ON (CR4_VMXE_MASK | CR4_PAE_MASK | CR4_VME_MASK)
  48
  49 #define INVALID_PAGE (~(hpa_t)0)
  50 #define UNMAPPED_GVA (~(gpa_t)0)
  51
  52 #define KVM_MAX_VCPUS 1
  53 #define KVM_MEMORY_SLOTS 4
  54 #define KVM_NUM_MMU_PAGES 256
  55
  56 #define FX_IMAGE_SIZE 512
  57 #define FX_IMAGE_ALIGN 16
  58 #define FX_BUF_SIZE (2 * FX_IMAGE_SIZE + FX_IMAGE_ALIGN)
  59
  60 #define DE_VECTOR 0
  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
  67
  68 #define SELECTOR_TI_MASK (1 << 2)
  69 #define SELECTOR_RPL_MASK 0x03
  70
  71 #define IOPL_SHIFT 12
  72
  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
  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)
 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;
 115         };
 116 };
 117
 118 struct kvm_mmu_page {
 119         struct list_head link;
 120         struct hlist_node hash_link;
 121
 122         /*
 123          * The following two entries are used to key the shadow page in the
 124          * hash table.
 125          */
 126         gfn_t gfn;
 127         union kvm_mmu_page_role role;
 128
 129         hpa_t page_hpa;
 130         unsigned long slot_bitmap; /* One bit set per slot which has memory
 131                                     * in this shadow page.
 132                                     */
 133         int global;              /* Set if all ptes in this page are global */
 134         int multimapped;         /* More than one parent_pte? */
 135         union {
 136                 u64 *parent_pte;               /* !multimapped */
 137                 struct hlist_head parent_ptes; /* multimapped, kvm_pte_chain */
 138         };
 139 };
 140
 141 struct vmcs {
 142         u32 revision_id;
 143         u32 abort;
 144         char data[0];
 145 };
 146
 147 #define vmx_msr_entry kvm_msr_entry
 148
 149 struct kvm_vcpu;
 150
 151 /*
 152  * x86 supports 3 paging modes (4-level 64-bit, 3-level 64-bit, and 2-level
 153  * 32-bit).  The kvm_mmu structure abstracts the details of the current mmu
 154  * mode.
 155  */
 156 struct kvm_mmu {
 157         void (*new_cr3)(struct kvm_vcpu *vcpu);
 158         int (*page_fault)(struct kvm_vcpu *vcpu, gva_t gva, u32 err);
 159         void (*inval_page)(struct kvm_vcpu *vcpu, gva_t gva);
 160         void (*free)(struct kvm_vcpu *vcpu);
 161         gpa_t (*gva_to_gpa)(struct kvm_vcpu *vcpu, gva_t gva);
 162         hpa_t root_hpa;
 163         int root_level;
 164         int shadow_root_level;
 165
 166         u64 *pae_root;
 167 };
 168
 169 struct kvm_guest_debug {
 170         int enabled;
 171         unsigned long bp[4];
 172         int singlestep;
 173 };
 174
 175 enum {
 176         VCPU_REGS_RAX = 0,
 177         VCPU_REGS_RCX = 1,
 178         VCPU_REGS_RDX = 2,
 179         VCPU_REGS_RBX = 3,
 180         VCPU_REGS_RSP = 4,
 181         VCPU_REGS_RBP = 5,
 182         VCPU_REGS_RSI = 6,
 183         VCPU_REGS_RDI = 7,
 184 #ifdef CONFIG_X86_64
 185         VCPU_REGS_R8 = 8,
 186         VCPU_REGS_R9 = 9,
 187         VCPU_REGS_R10 = 10,
 188         VCPU_REGS_R11 = 11,
 189         VCPU_REGS_R12 = 12,
 190         VCPU_REGS_R13 = 13,
 191         VCPU_REGS_R14 = 14,
 192         VCPU_REGS_R15 = 15,
 193 #endif
 194         NR_VCPU_REGS
 195 };
 196
 197 enum {
 198         VCPU_SREG_CS,
 199         VCPU_SREG_DS,
 200         VCPU_SREG_ES,
 201         VCPU_SREG_FS,
 202         VCPU_SREG_GS,
 203         VCPU_SREG_SS,
 204         VCPU_SREG_TR,
 205         VCPU_SREG_LDTR,
 206 };
 207
 208 struct kvm_vcpu {
 209         struct kvm *kvm;
 210         union {
 211                 struct vmcs *vmcs;
 212                 struct vcpu_svm *svm;
 213         };
 214         struct mutex mutex;
 215         int   cpu;
 216         int   launched;
 217         int interrupt_window_open;
 218         unsigned long irq_summary; /* bit vector: 1 per word in irq_pending */
 219 #define NR_IRQ_WORDS KVM_IRQ_BITMAP_SIZE(unsigned long)
 220         unsigned long irq_pending[NR_IRQ_WORDS];
 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         int nmsrs;
 233         struct vmx_msr_entry *guest_msrs;
 234         struct vmx_msr_entry *host_msrs;
 235
 236         struct list_head free_pages;
 237         struct kvm_mmu_page page_header_buf[KVM_NUM_MMU_PAGES];
 238         struct kvm_mmu mmu;
 239
 240         struct kvm_guest_debug guest_debug;
 241
 242         char fx_buf[FX_BUF_SIZE];
 243         char *host_fx_image;
 244         char *guest_fx_image;
 245
 246         int mmio_needed;
 247         int mmio_read_completed;
 248         int mmio_is_write;
 249         int mmio_size;
 250         unsigned char mmio_data[8];
 251         gpa_t mmio_phys_addr;
 252
 253         struct {
 254                 int active;
 255                 u8 save_iopl;
 256                 struct kvm_save_segment {
 257                         u16 selector;
 258                         unsigned long base;
 259                         u32 limit;
 260                         u32 ar;
 261                 } tr, es, ds, fs, gs;
 262         } rmode;
 263 };
 264
 265 struct kvm_memory_slot {
 266         gfn_t base_gfn;
 267         unsigned long npages;
 268         unsigned long flags;
 269         struct page **phys_mem;
 270         unsigned long *dirty_bitmap;
 271 };
 272
 273 struct kvm {
 274         spinlock_t lock; /* protects everything except vcpus */
 275         int nmemslots;
 276         struct kvm_memory_slot memslots[KVM_MEMORY_SLOTS];
 277         /*
 278          * Hash table of struct kvm_mmu_page.
 279          */
 280         struct list_head active_mmu_pages;
 281         struct hlist_head mmu_page_hash[KVM_NUM_MMU_PAGES];
 282         struct kvm_vcpu vcpus[KVM_MAX_VCPUS];
 283         int memory_config_version;
 284         int busy;
 285         unsigned long rmap_overflow;
 286 };
 287
 288 struct kvm_stat {
 289         u32 pf_fixed;
 290         u32 pf_guest;
 291         u32 tlb_flush;
 292         u32 invlpg;
 293
 294         u32 exits;
 295         u32 io_exits;
 296         u32 mmio_exits;
 297         u32 signal_exits;
 298         u32 irq_window_exits;
 299         u32 halt_exits;
 300         u32 request_irq_exits;
 301         u32 irq_exits;
 302 };
 303
 304 struct descriptor_table {
 305         u16 limit;
 306         unsigned long base;
 307 } __attribute__((packed));
 308
 309 struct kvm_arch_ops {
 310         int (*cpu_has_kvm_support)(void);          /* __init */
 311         int (*disabled_by_bios)(void);             /* __init */
 312         void (*hardware_enable)(void *dummy);      /* __init */
 313         void (*hardware_disable)(void *dummy);
 314         int (*hardware_setup)(void);               /* __init */
 315         void (*hardware_unsetup)(void);            /* __exit */
 316
 317         int (*vcpu_create)(struct kvm_vcpu *vcpu);
 318         void (*vcpu_free)(struct kvm_vcpu *vcpu);
 319
 320         struct kvm_vcpu *(*vcpu_load)(struct kvm_vcpu *vcpu);
 321         void (*vcpu_put)(struct kvm_vcpu *vcpu);
 322
 323         int (*set_guest_debug)(struct kvm_vcpu *vcpu,
 324                                struct kvm_debug_guest *dbg);
 325         int (*get_msr)(struct kvm_vcpu *vcpu, u32 msr_index, u64 *pdata);
 326         int (*set_msr)(struct kvm_vcpu *vcpu, u32 msr_index, u64 data);
 327         u64 (*get_segment_base)(struct kvm_vcpu *vcpu, int seg);
 328         void (*get_segment)(struct kvm_vcpu *vcpu,
 329                             struct kvm_segment *var, int seg);
 330         void (*set_segment)(struct kvm_vcpu *vcpu,
 331                             struct kvm_segment *var, int seg);
 332         void (*get_cs_db_l_bits)(struct kvm_vcpu *vcpu, int *db, int *l);
 333         void (*decache_cr0_cr4_guest_bits)(struct kvm_vcpu *vcpu);
 334         void (*set_cr0)(struct kvm_vcpu *vcpu, unsigned long cr0);
 335         void (*set_cr0_no_modeswitch)(struct kvm_vcpu *vcpu,
 336                                       unsigned long cr0);
 337         void (*set_cr3)(struct kvm_vcpu *vcpu, unsigned long cr3);
 338         void (*set_cr4)(struct kvm_vcpu *vcpu, unsigned long cr4);
 339         void (*set_efer)(struct kvm_vcpu *vcpu, u64 efer);
 340         void (*get_idt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt);
 341         void (*set_idt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt);
 342         void (*get_gdt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt);
 343         void (*set_gdt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt);
 344         unsigned long (*get_dr)(struct kvm_vcpu *vcpu, int dr);
 345         void (*set_dr)(struct kvm_vcpu *vcpu, int dr, unsigned long value,
 346                        int *exception);
 347         void (*cache_regs)(struct kvm_vcpu *vcpu);
 348         void (*decache_regs)(struct kvm_vcpu *vcpu);
 349         unsigned long (*get_rflags)(struct kvm_vcpu *vcpu);
 350         void (*set_rflags)(struct kvm_vcpu *vcpu, unsigned long rflags);
 351
 352         void (*invlpg)(struct kvm_vcpu *vcpu, gva_t addr);
 353         void (*tlb_flush)(struct kvm_vcpu *vcpu);
 354         void (*inject_page_fault)(struct kvm_vcpu *vcpu,
 355                                   unsigned long addr, u32 err_code);
 356
 357         void (*inject_gp)(struct kvm_vcpu *vcpu, unsigned err_code);
 358
 359         int (*run)(struct kvm_vcpu *vcpu, struct kvm_run *run);
 360         int (*vcpu_setup)(struct kvm_vcpu *vcpu);
 361         void (*skip_emulated_instruction)(struct kvm_vcpu *vcpu);
 362 };
 363
 364 extern struct kvm_stat kvm_stat;
 365 extern struct kvm_arch_ops *kvm_arch_ops;
 366
 367 #define kvm_printf(kvm, fmt ...) printk(KERN_DEBUG fmt)
 368 #define vcpu_printf(vcpu, fmt...) kvm_printf(vcpu->kvm, fmt)
 369
 370 int kvm_init_arch(struct kvm_arch_ops *ops, struct module *module);
 371 void kvm_exit_arch(void);
 372
 373 void kvm_mmu_destroy(struct kvm_vcpu *vcpu);
 374 int kvm_mmu_create(struct kvm_vcpu *vcpu);
 375 int kvm_mmu_setup(struct kvm_vcpu *vcpu);
 376
 377 int kvm_mmu_reset_context(struct kvm_vcpu *vcpu);
 378 void kvm_mmu_slot_remove_write_access(struct kvm *kvm, int slot);
 379
 380 hpa_t gpa_to_hpa(struct kvm_vcpu *vcpu, gpa_t gpa);
 381 #define HPA_MSB ((sizeof(hpa_t) * 8) - 1)
 382 #define HPA_ERR_MASK ((hpa_t)1 << HPA_MSB)
 383 static inline int is_error_hpa(hpa_t hpa) { return hpa >> HPA_MSB; }
 384 hpa_t gva_to_hpa(struct kvm_vcpu *vcpu, gva_t gva);
 385
 386 void kvm_emulator_want_group7_invlpg(void);
 387
 388 extern hpa_t bad_page_address;
 389
 390 static inline struct page *gfn_to_page(struct kvm_memory_slot *slot, gfn_t gfn)
 391 {
 392         return slot->phys_mem[gfn - slot->base_gfn];
 393 }
 394
 395 struct kvm_memory_slot *gfn_to_memslot(struct kvm *kvm, gfn_t gfn);
 396 void mark_page_dirty(struct kvm *kvm, gfn_t gfn);
 397
 398 enum emulation_result {
 399         EMULATE_DONE,       /* no further processing */
 400         EMULATE_DO_MMIO,      /* kvm_run filled with mmio request */
 401         EMULATE_FAIL,         /* can't emulate this instruction */
 402 };
 403
 404 int emulate_instruction(struct kvm_vcpu *vcpu, struct kvm_run *run,
 405                         unsigned long cr2, u16 error_code);
 406 void realmode_lgdt(struct kvm_vcpu *vcpu, u16 size, unsigned long address);
 407 void realmode_lidt(struct kvm_vcpu *vcpu, u16 size, unsigned long address);
 408 void realmode_lmsw(struct kvm_vcpu *vcpu, unsigned long msw,
 409                    unsigned long *rflags);
 410
 411 unsigned long realmode_get_cr(struct kvm_vcpu *vcpu, int cr);
 412 void realmode_set_cr(struct kvm_vcpu *vcpu, int cr, unsigned long value,
 413                      unsigned long *rflags);
 414
 415 struct x86_emulate_ctxt;
 416
 417 int emulate_invlpg(struct kvm_vcpu *vcpu, gva_t address);
 418 int emulate_clts(struct kvm_vcpu *vcpu);
 419 int emulator_get_dr(struct x86_emulate_ctxt* ctxt, int dr,
 420                     unsigned long *dest);
 421 int emulator_set_dr(struct x86_emulate_ctxt *ctxt, int dr,
 422                     unsigned long value);
 423
 424 void set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0);
 425 void set_cr3(struct kvm_vcpu *vcpu, unsigned long cr0);
 426 void set_cr4(struct kvm_vcpu *vcpu, unsigned long cr0);
 427 void set_cr8(struct kvm_vcpu *vcpu, unsigned long cr0);
 428 void lmsw(struct kvm_vcpu *vcpu, unsigned long msw);
 429
 430 int kvm_get_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata);
 431 int kvm_set_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 data);
 432
 433 void fx_init(struct kvm_vcpu *vcpu);
 434
 435 void load_msrs(struct vmx_msr_entry *e, int n);
 436 void save_msrs(struct vmx_msr_entry *e, int n);
 437 void kvm_resched(struct kvm_vcpu *vcpu);
 438
 439 int kvm_read_guest(struct kvm_vcpu *vcpu,
 440                gva_t addr,
 441                unsigned long size,
 442                void *dest);
 443
 444 int kvm_write_guest(struct kvm_vcpu *vcpu,
 445                 gva_t addr,
 446                 unsigned long size,
 447                 void *data);
 448
 449 unsigned long segment_base(u16 selector);
 450
 451 void kvm_mmu_pre_write(struct kvm_vcpu *vcpu, gpa_t gpa, int bytes);
 452 void kvm_mmu_post_write(struct kvm_vcpu *vcpu, gpa_t gpa, int bytes);
 453 int kvm_mmu_unprotect_page_virt(struct kvm_vcpu *vcpu, gva_t gva);
 454
 455 static inline struct page *_gfn_to_page(struct kvm *kvm, gfn_t gfn)
 456 {
 457         struct kvm_memory_slot *slot = gfn_to_memslot(kvm, gfn);
 458         return (slot) ? slot->phys_mem[gfn - slot->base_gfn] : NULL;
 459 }
 460
 461 static inline int is_long_mode(struct kvm_vcpu *vcpu)
 462 {
 463 #ifdef CONFIG_X86_64
 464         return vcpu->shadow_efer & EFER_LME;
 465 #else
 466         return 0;
 467 #endif
 468 }
 469
 470 static inline int is_pae(struct kvm_vcpu *vcpu)
 471 {
 472         return vcpu->cr4 & CR4_PAE_MASK;
 473 }
 474
 475 static inline int is_pse(struct kvm_vcpu *vcpu)
 476 {
 477         return vcpu->cr4 & CR4_PSE_MASK;
 478 }
 479
 480 static inline int is_paging(struct kvm_vcpu *vcpu)
 481 {
 482         return vcpu->cr0 & CR0_PG_MASK;
 483 }
 484
 485 static inline int memslot_id(struct kvm *kvm, struct kvm_memory_slot *slot)
 486 {
 487         return slot - kvm->memslots;
 488 }
 489
 490 static inline struct kvm_mmu_page *page_header(hpa_t shadow_page)
 491 {
 492         struct page *page = pfn_to_page(shadow_page >> PAGE_SHIFT);
 493
 494         return (struct kvm_mmu_page *)page->private;
 495 }
 496
 497 static inline u16 read_fs(void)
 498 {
 499         u16 seg;
 500         asm ("mov %%fs, %0" : "=g"(seg));
 501         return seg;
 502 }
 503
 504 static inline u16 read_gs(void)
 505 {
 506         u16 seg;
 507         asm ("mov %%gs, %0" : "=g"(seg));
 508         return seg;
 509 }
 510
 511 static inline u16 read_ldt(void)
 512 {
 513         u16 ldt;
 514         asm ("sldt %0" : "=g"(ldt));
 515         return ldt;
 516 }
 517
 518 static inline void load_fs(u16 sel)
 519 {
 520         asm ("mov %0, %%fs" : : "rm"(sel));
 521 }
 522
 523 static inline void load_gs(u16 sel)
 524 {
 525         asm ("mov %0, %%gs" : : "rm"(sel));
 526 }
 527
 528 #ifndef load_ldt
 529 static inline void load_ldt(u16 sel)
 530 {
 531         asm ("lldt %0" : : "g"(sel));
 532 }
 533 #endif
 534
 535 static inline void get_idt(struct descriptor_table *table)
 536 {
 537         asm ("sidt %0" : "=m"(*table));
 538 }
 539
 540 static inline void get_gdt(struct descriptor_table *table)
 541 {
 542         asm ("sgdt %0" : "=m"(*table));
 543 }
 544
 545 static inline unsigned long read_tr_base(void)
 546 {
 547         u16 tr;
 548         asm ("str %0" : "=g"(tr));
 549         return segment_base(tr);
 550 }
 551
 552 #ifdef CONFIG_X86_64
 553 static inline unsigned long read_msr(unsigned long msr)
 554 {
 555         u64 value;
 556
 557         rdmsrl(msr, value);
 558         return value;
 559 }
 560 #endif
 561
 562 static inline void fx_save(void *image)
 563 {
 564         asm ("fxsave (%0)":: "r" (image));
 565 }
 566
 567 static inline void fx_restore(void *image)
 568 {
 569         asm ("fxrstor (%0)":: "r" (image));
 570 }
 571
 572 static inline void fpu_init(void)
 573 {
 574         asm ("finit");
 575 }
 576
 577 static inline u32 get_rdx_init_val(void)
 578 {
 579         return 0x600; /* P6 family */
 580 }
 581
 582 #define ASM_VMX_VMCLEAR_RAX       ".byte 0x66, 0x0f, 0xc7, 0x30"
 583 #define ASM_VMX_VMLAUNCH          ".byte 0x0f, 0x01, 0xc2"
 584 #define ASM_VMX_VMRESUME          ".byte 0x0f, 0x01, 0xc3"
 585 #define ASM_VMX_VMPTRLD_RAX       ".byte 0x0f, 0xc7, 0x30"
 586 #define ASM_VMX_VMREAD_RDX_RAX    ".byte 0x0f, 0x78, 0xd0"
 587 #define ASM_VMX_VMWRITE_RAX_RDX   ".byte 0x0f, 0x79, 0xd0"
 588 #define ASM_VMX_VMWRITE_RSP_RDX   ".byte 0x0f, 0x79, 0xd4"
 589 #define ASM_VMX_VMXOFF            ".byte 0x0f, 0x01, 0xc4"
 590 #define ASM_VMX_VMXON_RAX         ".byte 0xf3, 0x0f, 0xc7, 0x30"
 591
 592 #define MSR_IA32_TIME_STAMP_COUNTER             0x010
 593
 594 #define TSS_IOPB_BASE_OFFSET 0x66
 595 #define TSS_BASE_SIZE 0x68
 596 #define TSS_IOPB_SIZE (65536 / 8)
 597 #define TSS_REDIRECTION_SIZE (256 / 8)
 598 #define RMODE_TSS_SIZE (TSS_BASE_SIZE + TSS_REDIRECTION_SIZE + TSS_IOPB_SIZE + 1)
 599
 600 #endif