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/hardirq.h>
11 #include <linux/list.h>
12 #include <linux/mutex.h>
13 #include <linux/spinlock.h>
14 #include <linux/signal.h>
15 #include <linux/sched.h>
17 #include <linux/preempt.h>
18 #include <asm/signal.h>
20 #include <linux/kvm.h>
21 #include <linux/kvm_para.h>
23 #define CR3_PAE_RESERVED_BITS ((X86_CR3_PWT | X86_CR3_PCD) - 1)
24 #define CR3_NONPAE_RESERVED_BITS ((PAGE_SIZE-1) & ~(X86_CR3_PWT | X86_CR3_PCD))
25 #define CR3_L_MODE_RESERVED_BITS (CR3_NONPAE_RESERVED_BITS|0xFFFFFF0000000000ULL)
27 #define KVM_GUEST_CR0_MASK \
28 (X86_CR0_PG | X86_CR0_PE | X86_CR0_WP | X86_CR0_NE \
29 | X86_CR0_NW | X86_CR0_CD)
30 #define KVM_VM_CR0_ALWAYS_ON \
31 (X86_CR0_PG | X86_CR0_PE | X86_CR0_WP | X86_CR0_NE | X86_CR0_TS \
33 #define KVM_GUEST_CR4_MASK \
34 (X86_CR4_VME | X86_CR4_PSE | X86_CR4_PAE | X86_CR4_PGE | X86_CR4_VMXE)
35 #define KVM_PMODE_VM_CR4_ALWAYS_ON (X86_CR4_PAE | X86_CR4_VMXE)
36 #define KVM_RMODE_VM_CR4_ALWAYS_ON (X86_CR4_VME | X86_CR4_PAE | X86_CR4_VMXE)
38 #define INVALID_PAGE (~(hpa_t)0)
39 #define UNMAPPED_GVA (~(gpa_t)0)
41 #define KVM_MAX_VCPUS 4
42 #define KVM_ALIAS_SLOTS 4
43 #define KVM_MEMORY_SLOTS 8
44 #define KVM_PERMILLE_MMU_PAGES 20
45 #define KVM_MIN_ALLOC_MMU_PAGES 64
46 #define KVM_NUM_MMU_PAGES 1024
47 #define KVM_MIN_FREE_MMU_PAGES 5
48 #define KVM_REFILL_PAGES 25
49 #define KVM_MAX_CPUID_ENTRIES 40
61 #define SELECTOR_TI_MASK (1 << 2)
62 #define SELECTOR_RPL_MASK 0x03
66 #define KVM_PIO_PAGE_OFFSET 1
69 * vcpu->requests bit members
71 #define KVM_REQ_TLB_FLUSH 0
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
84 typedef unsigned long gva_t
;
86 typedef unsigned long gfn_t
;
88 typedef unsigned long hva_t
;
90 typedef unsigned long hfn_t
;
92 #define NR_PTE_CHAIN_ENTRIES 5
94 struct kvm_pte_chain
{
95 u64
*parent_ptes
[NR_PTE_CHAIN_ENTRIES
];
96 struct hlist_node link
;
100 * kvm_mmu_page_role, below, is defined as:
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 * bits 17:19 - "access" - the user, writable, and nx bits of a huge page pde
108 union kvm_mmu_page_role
{
111 unsigned glevels
: 4;
113 unsigned quadrant
: 2;
114 unsigned pad_for_nice_hex_output
: 6;
115 unsigned metaphysical
: 1;
116 unsigned hugepage_access
: 3;
120 struct kvm_mmu_page
{
121 struct list_head link
;
122 struct hlist_node hash_link
;
125 * The following two entries are used to key the shadow page in the
129 union kvm_mmu_page_role role
;
132 /* hold the gfn of each spte inside spt */
134 unsigned long slot_bitmap
; /* One bit set per slot which has memory
135 * in this shadow page.
137 int multimapped
; /* More than one parent_pte? */
138 int root_count
; /* Currently serving as active root */
140 u64
*parent_pte
; /* !multimapped */
141 struct hlist_head parent_ptes
; /* multimapped, kvm_pte_chain */
146 extern struct kmem_cache
*kvm_vcpu_cache
;
149 * x86 supports 3 paging modes (4-level 64-bit, 3-level 64-bit, and 2-level
150 * 32-bit). The kvm_mmu structure abstracts the details of the current mmu
154 void (*new_cr3
)(struct kvm_vcpu
*vcpu
);
155 int (*page_fault
)(struct kvm_vcpu
*vcpu
, gva_t gva
, u32 err
);
156 void (*free
)(struct kvm_vcpu
*vcpu
);
157 gpa_t (*gva_to_gpa
)(struct kvm_vcpu
*vcpu
, gva_t gva
);
158 void (*prefetch_page
)(struct kvm_vcpu
*vcpu
,
159 struct kvm_mmu_page
*page
);
162 int shadow_root_level
;
167 #define KVM_NR_MEM_OBJS 40
169 struct kvm_mmu_memory_cache
{
171 void *objects
[KVM_NR_MEM_OBJS
];
175 * We don't want allocation failures within the mmu code, so we preallocate
176 * enough memory for a single page fault in a cache.
178 struct kvm_guest_debug
{
217 #include "x86_emulate.h"
219 struct kvm_pio_request
{
222 struct page
*guest_pages
[2];
223 unsigned guest_page_offset
;
242 u32 irq_window_exits
;
245 u32 request_irq_exits
;
251 struct kvm_io_device
{
252 void (*read
)(struct kvm_io_device
*this,
256 void (*write
)(struct kvm_io_device
*this,
260 int (*in_range
)(struct kvm_io_device
*this, gpa_t addr
);
261 void (*destructor
)(struct kvm_io_device
*this);
266 static inline void kvm_iodevice_read(struct kvm_io_device
*dev
,
271 dev
->read(dev
, addr
, len
, val
);
274 static inline void kvm_iodevice_write(struct kvm_io_device
*dev
,
279 dev
->write(dev
, addr
, len
, val
);
282 static inline int kvm_iodevice_inrange(struct kvm_io_device
*dev
, gpa_t addr
)
284 return dev
->in_range(dev
, addr
);
287 static inline void kvm_iodevice_destructor(struct kvm_io_device
*dev
)
290 dev
->destructor(dev
);
294 * It would be nice to use something smarter than a linear search, TBD...
295 * Thankfully we dont expect many devices to register (famous last words :),
296 * so until then it will suffice. At least its abstracted so we can change
301 #define NR_IOBUS_DEVS 6
302 struct kvm_io_device
*devs
[NR_IOBUS_DEVS
];
305 void kvm_io_bus_init(struct kvm_io_bus
*bus
);
306 void kvm_io_bus_destroy(struct kvm_io_bus
*bus
);
307 struct kvm_io_device
*kvm_io_bus_find_dev(struct kvm_io_bus
*bus
, gpa_t addr
);
308 void kvm_io_bus_register_dev(struct kvm_io_bus
*bus
,
309 struct kvm_io_device
*dev
);
311 #ifdef CONFIG_HAS_IOMEM
312 #define KVM_VCPU_MMIO \
314 int mmio_read_completed; \
317 unsigned char mmio_data[8]; \
318 gpa_t mmio_phys_addr;
321 #define KVM_VCPU_MMIO
325 #define KVM_VCPU_COMM \
327 struct preempt_notifier preempt_notifier; \
329 struct mutex mutex; \
331 struct kvm_run *run; \
333 unsigned long requests; \
334 struct kvm_guest_debug guest_debug; \
336 int guest_fpu_loaded; \
337 wait_queue_head_t wq; \
340 struct kvm_stat stat; \
343 struct kvm_mem_alias
{
345 unsigned long npages
;
349 struct kvm_memory_slot
{
351 unsigned long npages
;
354 unsigned long *dirty_bitmap
;
355 unsigned long userspace_addr
;
360 struct mutex lock
; /* protects everything except vcpus */
362 struct kvm_mem_alias aliases
[KVM_ALIAS_SLOTS
];
364 struct kvm_memory_slot memslots
[KVM_MEMORY_SLOTS
];
366 * Hash table of struct kvm_mmu_page.
368 struct list_head active_mmu_pages
;
369 unsigned int n_free_mmu_pages
;
370 unsigned int n_requested_mmu_pages
;
371 unsigned int n_alloc_mmu_pages
;
372 struct hlist_head mmu_page_hash
[KVM_NUM_MMU_PAGES
];
373 struct kvm_vcpu
*vcpus
[KVM_MAX_VCPUS
];
374 unsigned long rmap_overflow
;
375 struct list_head vm_list
;
377 struct kvm_io_bus mmio_bus
;
378 struct kvm_io_bus pio_bus
;
379 struct kvm_pic
*vpic
;
380 struct kvm_ioapic
*vioapic
;
381 int round_robin_prev_vcpu
;
384 static inline struct kvm_pic
*pic_irqchip(struct kvm
*kvm
)
389 static inline struct kvm_ioapic
*ioapic_irqchip(struct kvm
*kvm
)
394 static inline int irqchip_in_kernel(struct kvm
*kvm
)
396 return pic_irqchip(kvm
) != 0;
399 struct descriptor_table
{
402 } __attribute__((packed
));
405 int (*cpu_has_kvm_support
)(void); /* __init */
406 int (*disabled_by_bios
)(void); /* __init */
407 void (*hardware_enable
)(void *dummy
); /* __init */
408 void (*hardware_disable
)(void *dummy
);
409 void (*check_processor_compatibility
)(void *rtn
);
410 int (*hardware_setup
)(void); /* __init */
411 void (*hardware_unsetup
)(void); /* __exit */
413 /* Create, but do not attach this VCPU */
414 struct kvm_vcpu
*(*vcpu_create
)(struct kvm
*kvm
, unsigned id
);
415 void (*vcpu_free
)(struct kvm_vcpu
*vcpu
);
416 int (*vcpu_reset
)(struct kvm_vcpu
*vcpu
);
418 void (*prepare_guest_switch
)(struct kvm_vcpu
*vcpu
);
419 void (*vcpu_load
)(struct kvm_vcpu
*vcpu
, int cpu
);
420 void (*vcpu_put
)(struct kvm_vcpu
*vcpu
);
421 void (*vcpu_decache
)(struct kvm_vcpu
*vcpu
);
423 int (*set_guest_debug
)(struct kvm_vcpu
*vcpu
,
424 struct kvm_debug_guest
*dbg
);
425 void (*guest_debug_pre
)(struct kvm_vcpu
*vcpu
);
426 int (*get_msr
)(struct kvm_vcpu
*vcpu
, u32 msr_index
, u64
*pdata
);
427 int (*set_msr
)(struct kvm_vcpu
*vcpu
, u32 msr_index
, u64 data
);
428 u64 (*get_segment_base
)(struct kvm_vcpu
*vcpu
, int seg
);
429 void (*get_segment
)(struct kvm_vcpu
*vcpu
,
430 struct kvm_segment
*var
, int seg
);
431 void (*set_segment
)(struct kvm_vcpu
*vcpu
,
432 struct kvm_segment
*var
, int seg
);
433 void (*get_cs_db_l_bits
)(struct kvm_vcpu
*vcpu
, int *db
, int *l
);
434 void (*decache_cr4_guest_bits
)(struct kvm_vcpu
*vcpu
);
435 void (*set_cr0
)(struct kvm_vcpu
*vcpu
, unsigned long cr0
);
436 void (*set_cr3
)(struct kvm_vcpu
*vcpu
, unsigned long cr3
);
437 void (*set_cr4
)(struct kvm_vcpu
*vcpu
, unsigned long cr4
);
438 void (*set_efer
)(struct kvm_vcpu
*vcpu
, u64 efer
);
439 void (*get_idt
)(struct kvm_vcpu
*vcpu
, struct descriptor_table
*dt
);
440 void (*set_idt
)(struct kvm_vcpu
*vcpu
, struct descriptor_table
*dt
);
441 void (*get_gdt
)(struct kvm_vcpu
*vcpu
, struct descriptor_table
*dt
);
442 void (*set_gdt
)(struct kvm_vcpu
*vcpu
, struct descriptor_table
*dt
);
443 unsigned long (*get_dr
)(struct kvm_vcpu
*vcpu
, int dr
);
444 void (*set_dr
)(struct kvm_vcpu
*vcpu
, int dr
, unsigned long value
,
446 void (*cache_regs
)(struct kvm_vcpu
*vcpu
);
447 void (*decache_regs
)(struct kvm_vcpu
*vcpu
);
448 unsigned long (*get_rflags
)(struct kvm_vcpu
*vcpu
);
449 void (*set_rflags
)(struct kvm_vcpu
*vcpu
, unsigned long rflags
);
451 void (*tlb_flush
)(struct kvm_vcpu
*vcpu
);
452 void (*inject_page_fault
)(struct kvm_vcpu
*vcpu
,
453 unsigned long addr
, u32 err_code
);
455 void (*inject_gp
)(struct kvm_vcpu
*vcpu
, unsigned err_code
);
457 void (*run
)(struct kvm_vcpu
*vcpu
, struct kvm_run
*run
);
458 int (*handle_exit
)(struct kvm_run
*run
, struct kvm_vcpu
*vcpu
);
459 void (*skip_emulated_instruction
)(struct kvm_vcpu
*vcpu
);
460 void (*patch_hypercall
)(struct kvm_vcpu
*vcpu
,
461 unsigned char *hypercall_addr
);
462 int (*get_irq
)(struct kvm_vcpu
*vcpu
);
463 void (*set_irq
)(struct kvm_vcpu
*vcpu
, int vec
);
464 void (*inject_pending_irq
)(struct kvm_vcpu
*vcpu
);
465 void (*inject_pending_vectors
)(struct kvm_vcpu
*vcpu
,
466 struct kvm_run
*run
);
469 extern struct kvm_x86_ops
*kvm_x86_ops
;
471 /* The guest did something we don't support. */
472 #define pr_unimpl(vcpu, fmt, ...) \
474 if (printk_ratelimit()) \
475 printk(KERN_ERR "kvm: %i: cpu%i " fmt, \
476 current->tgid, (vcpu)->vcpu_id , ## __VA_ARGS__); \
479 #define kvm_printf(kvm, fmt ...) printk(KERN_DEBUG fmt)
480 #define vcpu_printf(vcpu, fmt...) kvm_printf(vcpu->kvm, fmt)
482 int kvm_vcpu_init(struct kvm_vcpu
*vcpu
, struct kvm
*kvm
, unsigned id
);
483 void kvm_vcpu_uninit(struct kvm_vcpu
*vcpu
);
485 void vcpu_load(struct kvm_vcpu
*vcpu
);
486 void vcpu_put(struct kvm_vcpu
*vcpu
);
489 int kvm_init_x86(struct kvm_x86_ops
*ops
, unsigned int vcpu_size
,
490 struct module
*module
);
491 void kvm_exit_x86(void);
493 int kvm_mmu_module_init(void);
494 void kvm_mmu_module_exit(void);
496 void kvm_mmu_destroy(struct kvm_vcpu
*vcpu
);
497 int kvm_mmu_create(struct kvm_vcpu
*vcpu
);
498 int kvm_mmu_setup(struct kvm_vcpu
*vcpu
);
499 void kvm_mmu_set_nonpresent_ptes(u64 trap_pte
, u64 notrap_pte
);
501 int kvm_mmu_reset_context(struct kvm_vcpu
*vcpu
);
502 void kvm_mmu_slot_remove_write_access(struct kvm
*kvm
, int slot
);
503 void kvm_mmu_zap_all(struct kvm
*kvm
);
504 void kvm_mmu_change_mmu_pages(struct kvm
*kvm
, unsigned int kvm_nr_mmu_pages
);
506 hpa_t
gpa_to_hpa(struct kvm
*kvm
, gpa_t gpa
);
507 #define HPA_MSB ((sizeof(hpa_t) * 8) - 1)
508 #define HPA_ERR_MASK ((hpa_t)1 << HPA_MSB)
509 static inline int is_error_hpa(hpa_t hpa
) { return hpa
>> HPA_MSB
; }
510 hpa_t
gva_to_hpa(struct kvm_vcpu
*vcpu
, gva_t gva
);
511 struct page
*gva_to_page(struct kvm_vcpu
*vcpu
, gva_t gva
);
513 extern struct page
*bad_page
;
515 int is_error_page(struct page
*page
);
516 gfn_t
unalias_gfn(struct kvm
*kvm
, gfn_t gfn
);
517 struct page
*gfn_to_page(struct kvm
*kvm
, gfn_t gfn
);
518 void kvm_release_page(struct page
*page
);
519 int kvm_read_guest_page(struct kvm
*kvm
, gfn_t gfn
, void *data
, int offset
,
521 int kvm_read_guest(struct kvm
*kvm
, gpa_t gpa
, void *data
, unsigned long len
);
522 int kvm_write_guest_page(struct kvm
*kvm
, gfn_t gfn
, const void *data
,
523 int offset
, int len
);
524 int kvm_write_guest(struct kvm
*kvm
, gpa_t gpa
, const void *data
,
526 int kvm_clear_guest_page(struct kvm
*kvm
, gfn_t gfn
, int offset
, int len
);
527 int kvm_clear_guest(struct kvm
*kvm
, gpa_t gpa
, unsigned long len
);
528 struct kvm_memory_slot
*gfn_to_memslot(struct kvm
*kvm
, gfn_t gfn
);
529 void mark_page_dirty(struct kvm
*kvm
, gfn_t gfn
);
531 enum emulation_result
{
532 EMULATE_DONE
, /* no further processing */
533 EMULATE_DO_MMIO
, /* kvm_run filled with mmio request */
534 EMULATE_FAIL
, /* can't emulate this instruction */
537 int emulate_instruction(struct kvm_vcpu
*vcpu
, struct kvm_run
*run
,
538 unsigned long cr2
, u16 error_code
, int no_decode
);
539 void kvm_report_emulation_failure(struct kvm_vcpu
*cvpu
, const char *context
);
540 void realmode_lgdt(struct kvm_vcpu
*vcpu
, u16 size
, unsigned long address
);
541 void realmode_lidt(struct kvm_vcpu
*vcpu
, u16 size
, unsigned long address
);
542 void realmode_lmsw(struct kvm_vcpu
*vcpu
, unsigned long msw
,
543 unsigned long *rflags
);
545 unsigned long realmode_get_cr(struct kvm_vcpu
*vcpu
, int cr
);
546 void realmode_set_cr(struct kvm_vcpu
*vcpu
, int cr
, unsigned long value
,
547 unsigned long *rflags
);
548 int kvm_get_msr(struct kvm_vcpu
*vcpu
, u32 msr_index
, u64
*data
);
549 int kvm_set_msr(struct kvm_vcpu
*vcpu
, u32 msr_index
, u64 data
);
551 struct x86_emulate_ctxt
;
553 int kvm_emulate_pio(struct kvm_vcpu
*vcpu
, struct kvm_run
*run
, int in
,
554 int size
, unsigned port
);
555 int kvm_emulate_pio_string(struct kvm_vcpu
*vcpu
, struct kvm_run
*run
, int in
,
556 int size
, unsigned long count
, int down
,
557 gva_t address
, int rep
, unsigned port
);
558 void kvm_emulate_cpuid(struct kvm_vcpu
*vcpu
);
559 int kvm_emulate_halt(struct kvm_vcpu
*vcpu
);
560 int emulate_invlpg(struct kvm_vcpu
*vcpu
, gva_t address
);
561 int emulate_clts(struct kvm_vcpu
*vcpu
);
562 int emulator_get_dr(struct x86_emulate_ctxt
*ctxt
, int dr
,
563 unsigned long *dest
);
564 int emulator_set_dr(struct x86_emulate_ctxt
*ctxt
, int dr
,
565 unsigned long value
);
567 void set_cr0(struct kvm_vcpu
*vcpu
, unsigned long cr0
);
568 void set_cr3(struct kvm_vcpu
*vcpu
, unsigned long cr0
);
569 void set_cr4(struct kvm_vcpu
*vcpu
, unsigned long cr0
);
570 void set_cr8(struct kvm_vcpu
*vcpu
, unsigned long cr0
);
571 unsigned long get_cr8(struct kvm_vcpu
*vcpu
);
572 void lmsw(struct kvm_vcpu
*vcpu
, unsigned long msw
);
573 void kvm_get_cs_db_l_bits(struct kvm_vcpu
*vcpu
, int *db
, int *l
);
575 int kvm_get_msr_common(struct kvm_vcpu
*vcpu
, u32 msr
, u64
*pdata
);
576 int kvm_set_msr_common(struct kvm_vcpu
*vcpu
, u32 msr
, u64 data
);
578 void fx_init(struct kvm_vcpu
*vcpu
);
580 void kvm_resched(struct kvm_vcpu
*vcpu
);
581 void kvm_load_guest_fpu(struct kvm_vcpu
*vcpu
);
582 void kvm_put_guest_fpu(struct kvm_vcpu
*vcpu
);
583 void kvm_flush_remote_tlbs(struct kvm
*kvm
);
585 int emulator_read_std(unsigned long addr
,
588 struct kvm_vcpu
*vcpu
);
589 int emulator_write_emulated(unsigned long addr
,
592 struct kvm_vcpu
*vcpu
);
594 unsigned long segment_base(u16 selector
);
596 void kvm_mmu_pte_write(struct kvm_vcpu
*vcpu
, gpa_t gpa
,
597 const u8
*new, int bytes
);
598 int kvm_mmu_unprotect_page_virt(struct kvm_vcpu
*vcpu
, gva_t gva
);
599 void __kvm_mmu_free_some_pages(struct kvm_vcpu
*vcpu
);
600 int kvm_mmu_load(struct kvm_vcpu
*vcpu
);
601 void kvm_mmu_unload(struct kvm_vcpu
*vcpu
);
603 int kvm_emulate_hypercall(struct kvm_vcpu
*vcpu
);
605 int kvm_fix_hypercall(struct kvm_vcpu
*vcpu
);
607 long kvm_arch_dev_ioctl(struct file
*filp
,
608 unsigned int ioctl
, unsigned long arg
);
609 long kvm_arch_vcpu_ioctl(struct file
*filp
,
610 unsigned int ioctl
, unsigned long arg
);
611 void kvm_arch_vcpu_load(struct kvm_vcpu
*vcpu
, int cpu
);
612 void kvm_arch_vcpu_put(struct kvm_vcpu
*vcpu
);
614 __init
void kvm_arch_init(void);
616 static inline void kvm_guest_enter(void)
618 account_system_vtime(current
);
619 current
->flags
|= PF_VCPU
;
622 static inline void kvm_guest_exit(void)
624 account_system_vtime(current
);
625 current
->flags
&= ~PF_VCPU
;
628 static inline int memslot_id(struct kvm
*kvm
, struct kvm_memory_slot
*slot
)
630 return slot
- kvm
->memslots
;
633 static inline struct kvm_mmu_page
*page_header(hpa_t shadow_page
)
635 struct page
*page
= pfn_to_page(shadow_page
>> PAGE_SHIFT
);
637 return (struct kvm_mmu_page
*)page_private(page
);
640 static inline u16
read_fs(void)
643 asm("mov %%fs, %0" : "=g"(seg
));
647 static inline u16
read_gs(void)
650 asm("mov %%gs, %0" : "=g"(seg
));
654 static inline u16
read_ldt(void)
657 asm("sldt %0" : "=g"(ldt
));
661 static inline void load_fs(u16 sel
)
663 asm("mov %0, %%fs" : : "rm"(sel
));
666 static inline void load_gs(u16 sel
)
668 asm("mov %0, %%gs" : : "rm"(sel
));
672 static inline void load_ldt(u16 sel
)
674 asm("lldt %0" : : "rm"(sel
));
678 static inline void get_idt(struct descriptor_table
*table
)
680 asm("sidt %0" : "=m"(*table
));
683 static inline void get_gdt(struct descriptor_table
*table
)
685 asm("sgdt %0" : "=m"(*table
));
688 static inline unsigned long read_tr_base(void)
691 asm("str %0" : "=g"(tr
));
692 return segment_base(tr
);
696 static inline unsigned long read_msr(unsigned long msr
)
705 static inline void fx_save(struct i387_fxsave_struct
*image
)
707 asm("fxsave (%0)":: "r" (image
));
710 static inline void fx_restore(struct i387_fxsave_struct
*image
)
712 asm("fxrstor (%0)":: "r" (image
));
715 static inline void fpu_init(void)
720 static inline u32
get_rdx_init_val(void)
722 return 0x600; /* P6 family */
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"
735 #define MSR_IA32_TIME_STAMP_COUNTER 0x010
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)