5 * This work is licensed under the terms of the GNU GPL, version 2. See
6 * the COPYING file in the top-level directory.
9 #include <linux/types.h>
10 #include <linux/list.h>
11 #include <linux/mutex.h>
12 #include <linux/spinlock.h>
13 #include <linux/signal.h>
14 #include <linux/sched.h>
16 #include <linux/preempt.h>
17 #include <asm/signal.h>
19 #include <linux/kvm.h>
20 #include <linux/kvm_para.h>
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)
26 #define KVM_GUEST_CR0_MASK \
27 (X86_CR0_PG | X86_CR0_PE | X86_CR0_WP | X86_CR0_NE \
28 | X86_CR0_NW | X86_CR0_CD)
29 #define KVM_VM_CR0_ALWAYS_ON \
30 (X86_CR0_PG | X86_CR0_PE | X86_CR0_WP | X86_CR0_NE | X86_CR0_TS \
32 #define KVM_GUEST_CR4_MASK \
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)
37 #define INVALID_PAGE (~(hpa_t)0)
38 #define UNMAPPED_GVA (~(gpa_t)0)
40 #define KVM_MAX_VCPUS 4
41 #define KVM_ALIAS_SLOTS 4
42 #define KVM_MEMORY_SLOTS 8
43 #define KVM_NUM_MMU_PAGES 1024
44 #define KVM_MIN_FREE_MMU_PAGES 5
45 #define KVM_REFILL_PAGES 25
46 #define KVM_MAX_CPUID_ENTRIES 40
58 #define SELECTOR_TI_MASK (1 << 2)
59 #define SELECTOR_RPL_MASK 0x03
63 #define KVM_PIO_PAGE_OFFSET 1
66 * vcpu->requests bit members
68 #define KVM_TLB_FLUSH 0
73 * gva - guest virtual address
74 * gpa - guest physical address
75 * gfn - guest frame number
76 * hva - host virtual address
77 * hpa - host physical address
78 * hfn - host frame number
81 typedef unsigned long gva_t;
83 typedef unsigned long gfn_t;
85 typedef unsigned long hva_t;
87 typedef unsigned long hfn_t;
89 #define NR_PTE_CHAIN_ENTRIES 5
91 struct kvm_pte_chain {
92 u64 *parent_ptes[NR_PTE_CHAIN_ENTRIES];
93 struct hlist_node link;
97 * kvm_mmu_page_role, below, is defined as:
99 * bits 0:3 - total guest paging levels (2-4, or zero for real mode)
100 * bits 4:7 - page table level for this shadow (1-4)
101 * bits 8:9 - page table quadrant for 2-level guests
102 * bit 16 - "metaphysical" - gfn is not a real page (huge page/real mode)
103 * bits 17:19 - "access" - the user, writable, and nx bits of a huge page pde
105 union kvm_mmu_page_role {
108 unsigned glevels : 4;
110 unsigned quadrant : 2;
111 unsigned pad_for_nice_hex_output : 6;
112 unsigned metaphysical : 1;
113 unsigned hugepage_access : 3;
117 struct kvm_mmu_page {
118 struct list_head link;
119 struct hlist_node hash_link;
122 * The following two entries are used to key the shadow page in the
126 union kvm_mmu_page_role role;
129 unsigned long slot_bitmap; /* One bit set per slot which has memory
130 * in this shadow page.
132 int multimapped; /* More than one parent_pte? */
133 int root_count; /* Currently serving as active root */
135 u64 *parent_pte; /* !multimapped */
136 struct hlist_head parent_ptes; /* multimapped, kvm_pte_chain */
141 extern struct kmem_cache *kvm_vcpu_cache;
144 * x86 supports 3 paging modes (4-level 64-bit, 3-level 64-bit, and 2-level
145 * 32-bit). The kvm_mmu structure abstracts the details of the current mmu
149 void (*new_cr3)(struct kvm_vcpu *vcpu);
150 int (*page_fault)(struct kvm_vcpu *vcpu, gva_t gva, u32 err);
151 void (*free)(struct kvm_vcpu *vcpu);
152 gpa_t (*gva_to_gpa)(struct kvm_vcpu *vcpu, gva_t gva);
153 void (*prefetch_page)(struct kvm_vcpu *vcpu,
154 struct kvm_mmu_page *page);
157 int shadow_root_level;
162 #define KVM_NR_MEM_OBJS 20
164 struct kvm_mmu_memory_cache {
166 void *objects[KVM_NR_MEM_OBJS];
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.
173 struct kvm_guest_debug {
212 #include "x86_emulate.h"
214 struct kvm_pio_request {
217 struct page *guest_pages[2];
218 unsigned guest_page_offset;
237 u32 irq_window_exits;
240 u32 request_irq_exits;
246 struct kvm_io_device {
247 void (*read)(struct kvm_io_device *this,
251 void (*write)(struct kvm_io_device *this,
255 int (*in_range)(struct kvm_io_device *this, gpa_t addr);
256 void (*destructor)(struct kvm_io_device *this);
261 static inline void kvm_iodevice_read(struct kvm_io_device *dev,
266 dev->read(dev, addr, len, val);
269 static inline void kvm_iodevice_write(struct kvm_io_device *dev,
274 dev->write(dev, addr, len, val);
277 static inline int kvm_iodevice_inrange(struct kvm_io_device *dev, gpa_t addr)
279 return dev->in_range(dev, addr);
282 static inline void kvm_iodevice_destructor(struct kvm_io_device *dev)
285 dev->destructor(dev);
289 * It would be nice to use something smarter than a linear search, TBD...
290 * Thankfully we dont expect many devices to register (famous last words :),
291 * so until then it will suffice. At least its abstracted so we can change
296 #define NR_IOBUS_DEVS 6
297 struct kvm_io_device *devs[NR_IOBUS_DEVS];
300 void kvm_io_bus_init(struct kvm_io_bus *bus);
301 void kvm_io_bus_destroy(struct kvm_io_bus *bus);
302 struct kvm_io_device *kvm_io_bus_find_dev(struct kvm_io_bus *bus, gpa_t addr);
303 void kvm_io_bus_register_dev(struct kvm_io_bus *bus,
304 struct kvm_io_device *dev);
308 struct preempt_notifier preempt_notifier;
314 int interrupt_window_open;
316 unsigned long requests;
317 unsigned long irq_summary; /* bit vector: 1 per word in irq_pending */
318 DECLARE_BITMAP(irq_pending, KVM_NR_INTERRUPTS);
319 unsigned long regs[NR_VCPU_REGS]; /* for rsp: vcpu_load_rsp_rip() */
320 unsigned long rip; /* needs vcpu_load_rsp_rip() */
327 u64 pdptrs[4]; /* pae */
330 struct kvm_lapic *apic; /* kernel irqchip context */
331 #define VCPU_MP_STATE_RUNNABLE 0
332 #define VCPU_MP_STATE_UNINITIALIZED 1
333 #define VCPU_MP_STATE_INIT_RECEIVED 2
334 #define VCPU_MP_STATE_SIPI_RECEIVED 3
335 #define VCPU_MP_STATE_HALTED 4
338 u64 ia32_misc_enable_msr;
342 struct kvm_mmu_memory_cache mmu_pte_chain_cache;
343 struct kvm_mmu_memory_cache mmu_rmap_desc_cache;
344 struct kvm_mmu_memory_cache mmu_page_cache;
345 struct kvm_mmu_memory_cache mmu_page_header_cache;
347 gfn_t last_pt_write_gfn;
348 int last_pt_write_count;
349 u64 *last_pte_updated;
351 struct kvm_guest_debug guest_debug;
353 struct i387_fxsave_struct host_fx_image;
354 struct i387_fxsave_struct guest_fx_image;
356 int guest_fpu_loaded;
359 int mmio_read_completed;
362 unsigned char mmio_data[8];
363 gpa_t mmio_phys_addr;
364 gva_t mmio_fault_cr2;
365 struct kvm_pio_request pio;
367 wait_queue_head_t wq;
372 struct kvm_stat stat;
377 struct kvm_save_segment {
382 } tr, es, ds, fs, gs;
384 int halt_request; /* real mode on Intel only */
387 struct kvm_cpuid_entry cpuid_entries[KVM_MAX_CPUID_ENTRIES];
389 /* emulate context */
391 struct x86_emulate_ctxt emulate_ctxt;
394 struct kvm_mem_alias {
396 unsigned long npages;
400 struct kvm_memory_slot {
402 unsigned long npages;
404 struct page **phys_mem;
405 unsigned long *dirty_bitmap;
409 struct mutex lock; /* protects everything except vcpus */
411 struct kvm_mem_alias aliases[KVM_ALIAS_SLOTS];
413 struct kvm_memory_slot memslots[KVM_MEMORY_SLOTS];
415 * Hash table of struct kvm_mmu_page.
417 struct list_head active_mmu_pages;
418 int n_free_mmu_pages;
419 struct hlist_head mmu_page_hash[KVM_NUM_MMU_PAGES];
420 struct kvm_vcpu *vcpus[KVM_MAX_VCPUS];
421 unsigned long rmap_overflow;
422 struct list_head vm_list;
424 struct kvm_io_bus mmio_bus;
425 struct kvm_io_bus pio_bus;
426 struct kvm_pic *vpic;
427 struct kvm_ioapic *vioapic;
428 int round_robin_prev_vcpu;
431 static inline struct kvm_pic *pic_irqchip(struct kvm *kvm)
436 static inline struct kvm_ioapic *ioapic_irqchip(struct kvm *kvm)
441 static inline int irqchip_in_kernel(struct kvm *kvm)
443 return pic_irqchip(kvm) != 0;
446 struct descriptor_table {
449 } __attribute__((packed));
452 int (*cpu_has_kvm_support)(void); /* __init */
453 int (*disabled_by_bios)(void); /* __init */
454 void (*hardware_enable)(void *dummy); /* __init */
455 void (*hardware_disable)(void *dummy);
456 void (*check_processor_compatibility)(void *rtn);
457 int (*hardware_setup)(void); /* __init */
458 void (*hardware_unsetup)(void); /* __exit */
460 /* Create, but do not attach this VCPU */
461 struct kvm_vcpu *(*vcpu_create)(struct kvm *kvm, unsigned id);
462 void (*vcpu_free)(struct kvm_vcpu *vcpu);
463 void (*vcpu_reset)(struct kvm_vcpu *vcpu);
465 void (*prepare_guest_switch)(struct kvm_vcpu *vcpu);
466 void (*vcpu_load)(struct kvm_vcpu *vcpu, int cpu);
467 void (*vcpu_put)(struct kvm_vcpu *vcpu);
468 void (*vcpu_decache)(struct kvm_vcpu *vcpu);
470 int (*set_guest_debug)(struct kvm_vcpu *vcpu,
471 struct kvm_debug_guest *dbg);
472 void (*guest_debug_pre)(struct kvm_vcpu *vcpu);
473 int (*get_msr)(struct kvm_vcpu *vcpu, u32 msr_index, u64 *pdata);
474 int (*set_msr)(struct kvm_vcpu *vcpu, u32 msr_index, u64 data);
475 u64 (*get_segment_base)(struct kvm_vcpu *vcpu, int seg);
476 void (*get_segment)(struct kvm_vcpu *vcpu,
477 struct kvm_segment *var, int seg);
478 void (*set_segment)(struct kvm_vcpu *vcpu,
479 struct kvm_segment *var, int seg);
480 void (*get_cs_db_l_bits)(struct kvm_vcpu *vcpu, int *db, int *l);
481 void (*decache_cr4_guest_bits)(struct kvm_vcpu *vcpu);
482 void (*set_cr0)(struct kvm_vcpu *vcpu, unsigned long cr0);
483 void (*set_cr3)(struct kvm_vcpu *vcpu, unsigned long cr3);
484 void (*set_cr4)(struct kvm_vcpu *vcpu, unsigned long cr4);
485 void (*set_efer)(struct kvm_vcpu *vcpu, u64 efer);
486 void (*get_idt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt);
487 void (*set_idt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt);
488 void (*get_gdt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt);
489 void (*set_gdt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt);
490 unsigned long (*get_dr)(struct kvm_vcpu *vcpu, int dr);
491 void (*set_dr)(struct kvm_vcpu *vcpu, int dr, unsigned long value,
493 void (*cache_regs)(struct kvm_vcpu *vcpu);
494 void (*decache_regs)(struct kvm_vcpu *vcpu);
495 unsigned long (*get_rflags)(struct kvm_vcpu *vcpu);
496 void (*set_rflags)(struct kvm_vcpu *vcpu, unsigned long rflags);
498 void (*tlb_flush)(struct kvm_vcpu *vcpu);
499 void (*inject_page_fault)(struct kvm_vcpu *vcpu,
500 unsigned long addr, u32 err_code);
502 void (*inject_gp)(struct kvm_vcpu *vcpu, unsigned err_code);
504 void (*run)(struct kvm_vcpu *vcpu, struct kvm_run *run);
505 int (*handle_exit)(struct kvm_run *run, struct kvm_vcpu *vcpu);
506 void (*skip_emulated_instruction)(struct kvm_vcpu *vcpu);
507 void (*patch_hypercall)(struct kvm_vcpu *vcpu,
508 unsigned char *hypercall_addr);
509 int (*get_irq)(struct kvm_vcpu *vcpu);
510 void (*set_irq)(struct kvm_vcpu *vcpu, int vec);
511 void (*inject_pending_irq)(struct kvm_vcpu *vcpu);
512 void (*inject_pending_vectors)(struct kvm_vcpu *vcpu,
513 struct kvm_run *run);
516 extern struct kvm_x86_ops *kvm_x86_ops;
518 /* The guest did something we don't support. */
519 #define pr_unimpl(vcpu, fmt, ...) \
521 if (printk_ratelimit()) \
522 printk(KERN_ERR "kvm: %i: cpu%i " fmt, \
523 current->tgid, (vcpu)->vcpu_id , ## __VA_ARGS__); \
526 #define kvm_printf(kvm, fmt ...) printk(KERN_DEBUG fmt)
527 #define vcpu_printf(vcpu, fmt...) kvm_printf(vcpu->kvm, fmt)
529 int kvm_vcpu_init(struct kvm_vcpu *vcpu, struct kvm *kvm, unsigned id);
530 void kvm_vcpu_uninit(struct kvm_vcpu *vcpu);
532 int kvm_init_x86(struct kvm_x86_ops *ops, unsigned int vcpu_size,
533 struct module *module);
534 void kvm_exit_x86(void);
536 int kvm_mmu_module_init(void);
537 void kvm_mmu_module_exit(void);
539 void kvm_mmu_destroy(struct kvm_vcpu *vcpu);
540 int kvm_mmu_create(struct kvm_vcpu *vcpu);
541 int kvm_mmu_setup(struct kvm_vcpu *vcpu);
542 void kvm_mmu_set_nonpresent_ptes(u64 trap_pte, u64 notrap_pte);
544 int kvm_mmu_reset_context(struct kvm_vcpu *vcpu);
545 void kvm_mmu_slot_remove_write_access(struct kvm *kvm, int slot);
546 void kvm_mmu_zap_all(struct kvm *kvm);
548 hpa_t gpa_to_hpa(struct kvm_vcpu *vcpu, gpa_t gpa);
549 #define HPA_MSB ((sizeof(hpa_t) * 8) - 1)
550 #define HPA_ERR_MASK ((hpa_t)1 << HPA_MSB)
551 static inline int is_error_hpa(hpa_t hpa) { return hpa >> HPA_MSB; }
552 hpa_t gva_to_hpa(struct kvm_vcpu *vcpu, gva_t gva);
553 struct page *gva_to_page(struct kvm_vcpu *vcpu, gva_t gva);
555 extern hpa_t bad_page_address;
557 struct page *gfn_to_page(struct kvm *kvm, gfn_t gfn);
558 struct kvm_memory_slot *gfn_to_memslot(struct kvm *kvm, gfn_t gfn);
559 void mark_page_dirty(struct kvm *kvm, gfn_t gfn);
561 enum emulation_result {
562 EMULATE_DONE, /* no further processing */
563 EMULATE_DO_MMIO, /* kvm_run filled with mmio request */
564 EMULATE_FAIL, /* can't emulate this instruction */
567 int emulate_instruction(struct kvm_vcpu *vcpu, struct kvm_run *run,
568 unsigned long cr2, u16 error_code, int no_decode);
569 void kvm_report_emulation_failure(struct kvm_vcpu *cvpu, const char *context);
570 void realmode_lgdt(struct kvm_vcpu *vcpu, u16 size, unsigned long address);
571 void realmode_lidt(struct kvm_vcpu *vcpu, u16 size, unsigned long address);
572 void realmode_lmsw(struct kvm_vcpu *vcpu, unsigned long msw,
573 unsigned long *rflags);
575 unsigned long realmode_get_cr(struct kvm_vcpu *vcpu, int cr);
576 void realmode_set_cr(struct kvm_vcpu *vcpu, int cr, unsigned long value,
577 unsigned long *rflags);
578 int kvm_get_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 *data);
579 int kvm_set_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 data);
581 struct x86_emulate_ctxt;
583 int kvm_emulate_pio (struct kvm_vcpu *vcpu, struct kvm_run *run, int in,
584 int size, unsigned port);
585 int kvm_emulate_pio_string(struct kvm_vcpu *vcpu, struct kvm_run *run, int in,
586 int size, unsigned long count, int down,
587 gva_t address, int rep, unsigned port);
588 void kvm_emulate_cpuid(struct kvm_vcpu *vcpu);
589 int kvm_emulate_halt(struct kvm_vcpu *vcpu);
590 int emulate_invlpg(struct kvm_vcpu *vcpu, gva_t address);
591 int emulate_clts(struct kvm_vcpu *vcpu);
592 int emulator_get_dr(struct x86_emulate_ctxt* ctxt, int dr,
593 unsigned long *dest);
594 int emulator_set_dr(struct x86_emulate_ctxt *ctxt, int dr,
595 unsigned long value);
597 void set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0);
598 void set_cr3(struct kvm_vcpu *vcpu, unsigned long cr0);
599 void set_cr4(struct kvm_vcpu *vcpu, unsigned long cr0);
600 void set_cr8(struct kvm_vcpu *vcpu, unsigned long cr0);
601 unsigned long get_cr8(struct kvm_vcpu *vcpu);
602 void lmsw(struct kvm_vcpu *vcpu, unsigned long msw);
603 void kvm_get_cs_db_l_bits(struct kvm_vcpu *vcpu, int *db, int *l);
605 int kvm_get_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata);
606 int kvm_set_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 data);
608 void fx_init(struct kvm_vcpu *vcpu);
610 void kvm_resched(struct kvm_vcpu *vcpu);
611 void kvm_load_guest_fpu(struct kvm_vcpu *vcpu);
612 void kvm_put_guest_fpu(struct kvm_vcpu *vcpu);
613 void kvm_flush_remote_tlbs(struct kvm *kvm);
615 int emulator_read_std(unsigned long addr,
618 struct kvm_vcpu *vcpu);
619 int emulator_write_emulated(unsigned long addr,
622 struct kvm_vcpu *vcpu);
624 unsigned long segment_base(u16 selector);
626 void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa,
627 const u8 *new, int bytes);
628 int kvm_mmu_unprotect_page_virt(struct kvm_vcpu *vcpu, gva_t gva);
629 void __kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu);
630 int kvm_mmu_load(struct kvm_vcpu *vcpu);
631 void kvm_mmu_unload(struct kvm_vcpu *vcpu);
633 int kvm_emulate_hypercall(struct kvm_vcpu *vcpu);
635 int kvm_fix_hypercall(struct kvm_vcpu *vcpu);
637 static inline void kvm_guest_enter(void)
639 current->flags |= PF_VCPU;
642 static inline void kvm_guest_exit(void)
644 current->flags &= ~PF_VCPU;
647 static inline int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t gva,
650 return vcpu->mmu.page_fault(vcpu, gva, error_code);
653 static inline void kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu)
655 if (unlikely(vcpu->kvm->n_free_mmu_pages < KVM_MIN_FREE_MMU_PAGES))
656 __kvm_mmu_free_some_pages(vcpu);
659 static inline int kvm_mmu_reload(struct kvm_vcpu *vcpu)
661 if (likely(vcpu->mmu.root_hpa != INVALID_PAGE))
664 return kvm_mmu_load(vcpu);
667 static inline int is_long_mode(struct kvm_vcpu *vcpu)
670 return vcpu->shadow_efer & EFER_LME;
676 static inline int is_pae(struct kvm_vcpu *vcpu)
678 return vcpu->cr4 & X86_CR4_PAE;
681 static inline int is_pse(struct kvm_vcpu *vcpu)
683 return vcpu->cr4 & X86_CR4_PSE;
686 static inline int is_paging(struct kvm_vcpu *vcpu)
688 return vcpu->cr0 & X86_CR0_PG;
691 static inline int memslot_id(struct kvm *kvm, struct kvm_memory_slot *slot)
693 return slot - kvm->memslots;
696 static inline struct kvm_mmu_page *page_header(hpa_t shadow_page)
698 struct page *page = pfn_to_page(shadow_page >> PAGE_SHIFT);
700 return (struct kvm_mmu_page *)page_private(page);
703 static inline u16 read_fs(void)
706 asm ("mov %%fs, %0" : "=g"(seg));
710 static inline u16 read_gs(void)
713 asm ("mov %%gs, %0" : "=g"(seg));
717 static inline u16 read_ldt(void)
720 asm ("sldt %0" : "=g"(ldt));
724 static inline void load_fs(u16 sel)
726 asm ("mov %0, %%fs" : : "rm"(sel));
729 static inline void load_gs(u16 sel)
731 asm ("mov %0, %%gs" : : "rm"(sel));
735 static inline void load_ldt(u16 sel)
737 asm ("lldt %0" : : "rm"(sel));
741 static inline void get_idt(struct descriptor_table *table)
743 asm ("sidt %0" : "=m"(*table));
746 static inline void get_gdt(struct descriptor_table *table)
748 asm ("sgdt %0" : "=m"(*table));
751 static inline unsigned long read_tr_base(void)
754 asm ("str %0" : "=g"(tr));
755 return segment_base(tr);
759 static inline unsigned long read_msr(unsigned long msr)
768 static inline void fx_save(struct i387_fxsave_struct *image)
770 asm ("fxsave (%0)":: "r" (image));
773 static inline void fx_restore(struct i387_fxsave_struct *image)
775 asm ("fxrstor (%0)":: "r" (image));
778 static inline void fpu_init(void)
783 static inline u32 get_rdx_init_val(void)
785 return 0x600; /* P6 family */
788 #define ASM_VMX_VMCLEAR_RAX ".byte 0x66, 0x0f, 0xc7, 0x30"
789 #define ASM_VMX_VMLAUNCH ".byte 0x0f, 0x01, 0xc2"
790 #define ASM_VMX_VMRESUME ".byte 0x0f, 0x01, 0xc3"
791 #define ASM_VMX_VMPTRLD_RAX ".byte 0x0f, 0xc7, 0x30"
792 #define ASM_VMX_VMREAD_RDX_RAX ".byte 0x0f, 0x78, 0xd0"
793 #define ASM_VMX_VMWRITE_RAX_RDX ".byte 0x0f, 0x79, 0xd0"
794 #define ASM_VMX_VMWRITE_RSP_RDX ".byte 0x0f, 0x79, 0xd4"
795 #define ASM_VMX_VMXOFF ".byte 0x0f, 0x01, 0xc4"
796 #define ASM_VMX_VMXON_RAX ".byte 0xf3, 0x0f, 0xc7, 0x30"
798 #define MSR_IA32_TIME_STAMP_COUNTER 0x010
800 #define TSS_IOPB_BASE_OFFSET 0x66
801 #define TSS_BASE_SIZE 0x68
802 #define TSS_IOPB_SIZE (65536 / 8)
803 #define TSS_REDIRECTION_SIZE (256 / 8)
804 #define RMODE_TSS_SIZE (TSS_BASE_SIZE + TSS_REDIRECTION_SIZE + TSS_IOPB_SIZE + 1)