1 /*- 2 * Copyright (c) 2011 NetApp, Inc. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 */ 28 29 #ifndef _VMM_H_ 30 #define _VMM_H_ 31 32 #include <x86/segments.h> 33 34 enum vm_suspend_how { 35 VM_SUSPEND_NONE, 36 VM_SUSPEND_RESET, 37 VM_SUSPEND_POWEROFF, 38 VM_SUSPEND_HALT, 39 VM_SUSPEND_TRIPLEFAULT, 40 VM_SUSPEND_LAST 41 }; 42 43 /* 44 * Identifiers for architecturally defined registers. 45 */ 46 enum vm_reg_name { 47 VM_REG_GUEST_RAX, 48 VM_REG_GUEST_RBX, 49 VM_REG_GUEST_RCX, 50 VM_REG_GUEST_RDX, 51 VM_REG_GUEST_RSI, 52 VM_REG_GUEST_RDI, 53 VM_REG_GUEST_RBP, 54 VM_REG_GUEST_R8, 55 VM_REG_GUEST_R9, 56 VM_REG_GUEST_R10, 57 VM_REG_GUEST_R11, 58 VM_REG_GUEST_R12, 59 VM_REG_GUEST_R13, 60 VM_REG_GUEST_R14, 61 VM_REG_GUEST_R15, 62 VM_REG_GUEST_CR0, 63 VM_REG_GUEST_CR3, 64 VM_REG_GUEST_CR4, 65 VM_REG_GUEST_DR7, 66 VM_REG_GUEST_RSP, 67 VM_REG_GUEST_RIP, 68 VM_REG_GUEST_RFLAGS, 69 VM_REG_GUEST_ES, 70 VM_REG_GUEST_CS, 71 VM_REG_GUEST_SS, 72 VM_REG_GUEST_DS, 73 VM_REG_GUEST_FS, 74 VM_REG_GUEST_GS, 75 VM_REG_GUEST_LDTR, 76 VM_REG_GUEST_TR, 77 VM_REG_GUEST_IDTR, 78 VM_REG_GUEST_GDTR, 79 VM_REG_GUEST_EFER, 80 VM_REG_GUEST_CR2, 81 VM_REG_GUEST_PDPTE0, 82 VM_REG_GUEST_PDPTE1, 83 VM_REG_GUEST_PDPTE2, 84 VM_REG_GUEST_PDPTE3, 85 VM_REG_GUEST_INTR_SHADOW, 86 VM_REG_LAST 87 }; 88 89 enum x2apic_state { 90 X2APIC_DISABLED, 91 X2APIC_ENABLED, 92 X2APIC_STATE_LAST 93 }; 94 95 #define VM_INTINFO_VECTOR(info) ((info) & 0xff) 96 #define VM_INTINFO_DEL_ERRCODE 0x800 97 #define VM_INTINFO_RSVD 0x7ffff000 98 #define VM_INTINFO_VALID 0x80000000 99 #define VM_INTINFO_TYPE 0x700 100 #define VM_INTINFO_HWINTR (0 << 8) 101 #define VM_INTINFO_NMI (2 << 8) 102 #define VM_INTINFO_HWEXCEPTION (3 << 8) 103 #define VM_INTINFO_SWINTR (4 << 8) 104 105 #ifdef _KERNEL 106 107 #define VM_MAX_NAMELEN 32 108 109 struct vm; 110 struct vm_exception; 111 struct vm_memory_segment; 112 struct seg_desc; 113 struct vm_exit; 114 struct vm_run; 115 struct vhpet; 116 struct vioapic; 117 struct vlapic; 118 struct vmspace; 119 struct vm_object; 120 struct vm_guest_paging; 121 struct pmap; 122 123 typedef int (*vmm_init_func_t)(int ipinum); 124 typedef int (*vmm_cleanup_func_t)(void); 125 typedef void (*vmm_resume_func_t)(void); 126 typedef void * (*vmi_init_func_t)(struct vm *vm, struct pmap *pmap); 127 typedef int (*vmi_run_func_t)(void *vmi, int vcpu, register_t rip, 128 struct pmap *pmap, void *rendezvous_cookie, 129 void *suspend_cookie); 130 typedef void (*vmi_cleanup_func_t)(void *vmi); 131 typedef int (*vmi_get_register_t)(void *vmi, int vcpu, int num, 132 uint64_t *retval); 133 typedef int (*vmi_set_register_t)(void *vmi, int vcpu, int num, 134 uint64_t val); 135 typedef int (*vmi_get_desc_t)(void *vmi, int vcpu, int num, 136 struct seg_desc *desc); 137 typedef int (*vmi_set_desc_t)(void *vmi, int vcpu, int num, 138 struct seg_desc *desc); 139 typedef int (*vmi_get_cap_t)(void *vmi, int vcpu, int num, int *retval); 140 typedef int (*vmi_set_cap_t)(void *vmi, int vcpu, int num, int val); 141 typedef struct vmspace * (*vmi_vmspace_alloc)(vm_offset_t min, vm_offset_t max); 142 typedef void (*vmi_vmspace_free)(struct vmspace *vmspace); 143 typedef struct vlapic * (*vmi_vlapic_init)(void *vmi, int vcpu); 144 typedef void (*vmi_vlapic_cleanup)(void *vmi, struct vlapic *vlapic); 145 146 struct vmm_ops { 147 vmm_init_func_t init; /* module wide initialization */ 148 vmm_cleanup_func_t cleanup; 149 vmm_resume_func_t resume; 150 151 vmi_init_func_t vminit; /* vm-specific initialization */ 152 vmi_run_func_t vmrun; 153 vmi_cleanup_func_t vmcleanup; 154 vmi_get_register_t vmgetreg; 155 vmi_set_register_t vmsetreg; 156 vmi_get_desc_t vmgetdesc; 157 vmi_set_desc_t vmsetdesc; 158 vmi_get_cap_t vmgetcap; 159 vmi_set_cap_t vmsetcap; 160 vmi_vmspace_alloc vmspace_alloc; 161 vmi_vmspace_free vmspace_free; 162 vmi_vlapic_init vlapic_init; 163 vmi_vlapic_cleanup vlapic_cleanup; 164 }; 165 166 extern struct vmm_ops vmm_ops_intel; 167 extern struct vmm_ops vmm_ops_amd; 168 169 int vm_create(const char *name, struct vm **retvm); 170 void vm_destroy(struct vm *vm); 171 int vm_reinit(struct vm *vm); 172 const char *vm_name(struct vm *vm); 173 int vm_malloc(struct vm *vm, vm_paddr_t gpa, size_t len); 174 int vm_map_mmio(struct vm *vm, vm_paddr_t gpa, size_t len, vm_paddr_t hpa); 175 int vm_unmap_mmio(struct vm *vm, vm_paddr_t gpa, size_t len); 176 void *vm_gpa_hold(struct vm *, vm_paddr_t gpa, size_t len, int prot, 177 void **cookie); 178 void vm_gpa_release(void *cookie); 179 int vm_gpabase2memseg(struct vm *vm, vm_paddr_t gpabase, 180 struct vm_memory_segment *seg); 181 int vm_get_memobj(struct vm *vm, vm_paddr_t gpa, size_t len, 182 vm_offset_t *offset, struct vm_object **object); 183 boolean_t vm_mem_allocated(struct vm *vm, vm_paddr_t gpa); 184 int vm_get_register(struct vm *vm, int vcpu, int reg, uint64_t *retval); 185 int vm_set_register(struct vm *vm, int vcpu, int reg, uint64_t val); 186 int vm_get_seg_desc(struct vm *vm, int vcpu, int reg, 187 struct seg_desc *ret_desc); 188 int vm_set_seg_desc(struct vm *vm, int vcpu, int reg, 189 struct seg_desc *desc); 190 int vm_run(struct vm *vm, struct vm_run *vmrun); 191 int vm_suspend(struct vm *vm, enum vm_suspend_how how); 192 int vm_inject_nmi(struct vm *vm, int vcpu); 193 int vm_nmi_pending(struct vm *vm, int vcpuid); 194 void vm_nmi_clear(struct vm *vm, int vcpuid); 195 int vm_inject_extint(struct vm *vm, int vcpu); 196 int vm_extint_pending(struct vm *vm, int vcpuid); 197 void vm_extint_clear(struct vm *vm, int vcpuid); 198 uint64_t *vm_guest_msrs(struct vm *vm, int cpu); 199 struct vlapic *vm_lapic(struct vm *vm, int cpu); 200 struct vioapic *vm_ioapic(struct vm *vm); 201 struct vhpet *vm_hpet(struct vm *vm); 202 int vm_get_capability(struct vm *vm, int vcpu, int type, int *val); 203 int vm_set_capability(struct vm *vm, int vcpu, int type, int val); 204 int vm_get_x2apic_state(struct vm *vm, int vcpu, enum x2apic_state *state); 205 int vm_set_x2apic_state(struct vm *vm, int vcpu, enum x2apic_state state); 206 int vm_apicid2vcpuid(struct vm *vm, int apicid); 207 int vm_activate_cpu(struct vm *vm, int vcpu); 208 cpuset_t vm_active_cpus(struct vm *vm); 209 cpuset_t vm_suspended_cpus(struct vm *vm); 210 struct vm_exit *vm_exitinfo(struct vm *vm, int vcpuid); 211 void vm_exit_suspended(struct vm *vm, int vcpuid, uint64_t rip); 212 void vm_exit_rendezvous(struct vm *vm, int vcpuid, uint64_t rip); 213 void vm_exit_astpending(struct vm *vm, int vcpuid, uint64_t rip); 214 215 /* 216 * Rendezvous all vcpus specified in 'dest' and execute 'func(arg)'. 217 * The rendezvous 'func(arg)' is not allowed to do anything that will 218 * cause the thread to be put to sleep. 219 * 220 * If the rendezvous is being initiated from a vcpu context then the 221 * 'vcpuid' must refer to that vcpu, otherwise it should be set to -1. 222 * 223 * The caller cannot hold any locks when initiating the rendezvous. 224 * 225 * The implementation of this API may cause vcpus other than those specified 226 * by 'dest' to be stalled. The caller should not rely on any vcpus making 227 * forward progress when the rendezvous is in progress. 228 */ 229 typedef void (*vm_rendezvous_func_t)(struct vm *vm, int vcpuid, void *arg); 230 void vm_smp_rendezvous(struct vm *vm, int vcpuid, cpuset_t dest, 231 vm_rendezvous_func_t func, void *arg); 232 233 static __inline int 234 vcpu_rendezvous_pending(void *rendezvous_cookie) 235 { 236 237 return (*(uintptr_t *)rendezvous_cookie != 0); 238 } 239 240 static __inline int 241 vcpu_suspended(void *suspend_cookie) 242 { 243 244 return (*(int *)suspend_cookie); 245 } 246 247 /* 248 * Return 1 if device indicated by bus/slot/func is supposed to be a 249 * pci passthrough device. 250 * 251 * Return 0 otherwise. 252 */ 253 int vmm_is_pptdev(int bus, int slot, int func); 254 255 void *vm_iommu_domain(struct vm *vm); 256 257 enum vcpu_state { 258 VCPU_IDLE, 259 VCPU_FROZEN, 260 VCPU_RUNNING, 261 VCPU_SLEEPING, 262 }; 263 264 int vcpu_set_state(struct vm *vm, int vcpu, enum vcpu_state state, 265 bool from_idle); 266 enum vcpu_state vcpu_get_state(struct vm *vm, int vcpu, int *hostcpu); 267 268 static int __inline 269 vcpu_is_running(struct vm *vm, int vcpu, int *hostcpu) 270 { 271 return (vcpu_get_state(vm, vcpu, hostcpu) == VCPU_RUNNING); 272 } 273 274 #ifdef _SYS_PROC_H_ 275 static int __inline 276 vcpu_should_yield(struct vm *vm, int vcpu) 277 { 278 return (curthread->td_flags & (TDF_ASTPENDING | TDF_NEEDRESCHED)); 279 } 280 #endif 281 282 void *vcpu_stats(struct vm *vm, int vcpu); 283 void vcpu_notify_event(struct vm *vm, int vcpuid, bool lapic_intr); 284 struct vmspace *vm_get_vmspace(struct vm *vm); 285 int vm_assign_pptdev(struct vm *vm, int bus, int slot, int func); 286 int vm_unassign_pptdev(struct vm *vm, int bus, int slot, int func); 287 struct vatpic *vm_atpic(struct vm *vm); 288 struct vatpit *vm_atpit(struct vm *vm); 289 290 /* 291 * Inject exception 'vme' into the guest vcpu. This function returns 0 on 292 * success and non-zero on failure. 293 * 294 * Wrapper functions like 'vm_inject_gp()' should be preferred to calling 295 * this function directly because they enforce the trap-like or fault-like 296 * behavior of an exception. 297 * 298 * This function should only be called in the context of the thread that is 299 * executing this vcpu. 300 */ 301 int vm_inject_exception(struct vm *vm, int vcpuid, struct vm_exception *vme); 302 303 /* 304 * This function is called after a VM-exit that occurred during exception or 305 * interrupt delivery through the IDT. The format of 'intinfo' is described 306 * in Figure 15-1, "EXITINTINFO for All Intercepts", APM, Vol 2. 307 * 308 * If a VM-exit handler completes the event delivery successfully then it 309 * should call vm_exit_intinfo() to extinguish the pending event. For e.g., 310 * if the task switch emulation is triggered via a task gate then it should 311 * call this function with 'intinfo=0' to indicate that the external event 312 * is not pending anymore. 313 * 314 * Return value is 0 on success and non-zero on failure. 315 */ 316 int vm_exit_intinfo(struct vm *vm, int vcpuid, uint64_t intinfo); 317 318 /* 319 * This function is called before every VM-entry to retrieve a pending 320 * event that should be injected into the guest. This function combines 321 * nested events into a double or triple fault. 322 * 323 * Returns 0 if there are no events that need to be injected into the guest 324 * and non-zero otherwise. 325 */ 326 int vm_entry_intinfo(struct vm *vm, int vcpuid, uint64_t *info); 327 328 int vm_get_intinfo(struct vm *vm, int vcpuid, uint64_t *info1, uint64_t *info2); 329 330 enum vm_reg_name vm_segment_name(int seg_encoding); 331 332 struct vm_copyinfo { 333 uint64_t gpa; 334 size_t len; 335 void *hva; 336 void *cookie; 337 }; 338 339 /* 340 * Set up 'copyinfo[]' to copy to/from guest linear address space starting 341 * at 'gla' and 'len' bytes long. The 'prot' should be set to PROT_READ for 342 * a copyin or PROT_WRITE for a copyout. 343 * 344 * Returns 0 on success. 345 * Returns 1 if an exception was injected into the guest. 346 * Returns -1 otherwise. 347 * 348 * The 'copyinfo[]' can be passed to 'vm_copyin()' or 'vm_copyout()' only if 349 * the return value is 0. The 'copyinfo[]' resources should be freed by calling 350 * 'vm_copy_teardown()' after the copy is done. 351 */ 352 int vm_copy_setup(struct vm *vm, int vcpuid, struct vm_guest_paging *paging, 353 uint64_t gla, size_t len, int prot, struct vm_copyinfo *copyinfo, 354 int num_copyinfo); 355 void vm_copy_teardown(struct vm *vm, int vcpuid, struct vm_copyinfo *copyinfo, 356 int num_copyinfo); 357 void vm_copyin(struct vm *vm, int vcpuid, struct vm_copyinfo *copyinfo, 358 void *kaddr, size_t len); 359 void vm_copyout(struct vm *vm, int vcpuid, const void *kaddr, 360 struct vm_copyinfo *copyinfo, size_t len); 361 #endif /* KERNEL */ 362 363 #define VM_MAXCPU 16 /* maximum virtual cpus */ 364 365 /* 366 * Identifiers for optional vmm capabilities 367 */ 368 enum vm_cap_type { 369 VM_CAP_HALT_EXIT, 370 VM_CAP_MTRAP_EXIT, 371 VM_CAP_PAUSE_EXIT, 372 VM_CAP_UNRESTRICTED_GUEST, 373 VM_CAP_ENABLE_INVPCID, 374 VM_CAP_MAX 375 }; 376 377 enum vm_intr_trigger { 378 EDGE_TRIGGER, 379 LEVEL_TRIGGER 380 }; 381 382 /* 383 * The 'access' field has the format specified in Table 21-2 of the Intel 384 * Architecture Manual vol 3b. 385 * 386 * XXX The contents of the 'access' field are architecturally defined except 387 * bit 16 - Segment Unusable. 388 */ 389 struct seg_desc { 390 uint64_t base; 391 uint32_t limit; 392 uint32_t access; 393 }; 394 #define SEG_DESC_TYPE(access) ((access) & 0x001f) 395 #define SEG_DESC_DPL(access) (((access) >> 5) & 0x3) 396 #define SEG_DESC_PRESENT(access) (((access) & 0x0080) ? 1 : 0) 397 #define SEG_DESC_DEF32(access) (((access) & 0x4000) ? 1 : 0) 398 #define SEG_DESC_GRANULARITY(access) (((access) & 0x8000) ? 1 : 0) 399 #define SEG_DESC_UNUSABLE(access) (((access) & 0x10000) ? 1 : 0) 400 401 enum vm_cpu_mode { 402 CPU_MODE_REAL, 403 CPU_MODE_PROTECTED, 404 CPU_MODE_COMPATIBILITY, /* IA-32E mode (CS.L = 0) */ 405 CPU_MODE_64BIT, /* IA-32E mode (CS.L = 1) */ 406 }; 407 408 enum vm_paging_mode { 409 PAGING_MODE_FLAT, 410 PAGING_MODE_32, 411 PAGING_MODE_PAE, 412 PAGING_MODE_64, 413 }; 414 415 struct vm_guest_paging { 416 uint64_t cr3; 417 int cpl; 418 enum vm_cpu_mode cpu_mode; 419 enum vm_paging_mode paging_mode; 420 }; 421 422 /* 423 * The data structures 'vie' and 'vie_op' are meant to be opaque to the 424 * consumers of instruction decoding. The only reason why their contents 425 * need to be exposed is because they are part of the 'vm_exit' structure. 426 */ 427 struct vie_op { 428 uint8_t op_byte; /* actual opcode byte */ 429 uint8_t op_type; /* type of operation (e.g. MOV) */ 430 uint16_t op_flags; 431 }; 432 433 #define VIE_INST_SIZE 15 434 struct vie { 435 uint8_t inst[VIE_INST_SIZE]; /* instruction bytes */ 436 uint8_t num_valid; /* size of the instruction */ 437 uint8_t num_processed; 438 439 uint8_t addrsize:4, opsize:4; /* address and operand sizes */ 440 uint8_t rex_w:1, /* REX prefix */ 441 rex_r:1, 442 rex_x:1, 443 rex_b:1, 444 rex_present:1, 445 opsize_override:1, /* Operand size override */ 446 addrsize_override:1; /* Address size override */ 447 448 uint8_t mod:2, /* ModRM byte */ 449 reg:4, 450 rm:4; 451 452 uint8_t ss:2, /* SIB byte */ 453 index:4, 454 base:4; 455 456 uint8_t disp_bytes; 457 uint8_t imm_bytes; 458 459 uint8_t scale; 460 int base_register; /* VM_REG_GUEST_xyz */ 461 int index_register; /* VM_REG_GUEST_xyz */ 462 463 int64_t displacement; /* optional addr displacement */ 464 int64_t immediate; /* optional immediate operand */ 465 466 uint8_t decoded; /* set to 1 if successfully decoded */ 467 468 struct vie_op op; /* opcode description */ 469 }; 470 471 enum vm_exitcode { 472 VM_EXITCODE_INOUT, 473 VM_EXITCODE_VMX, 474 VM_EXITCODE_BOGUS, 475 VM_EXITCODE_RDMSR, 476 VM_EXITCODE_WRMSR, 477 VM_EXITCODE_HLT, 478 VM_EXITCODE_MTRAP, 479 VM_EXITCODE_PAUSE, 480 VM_EXITCODE_PAGING, 481 VM_EXITCODE_INST_EMUL, 482 VM_EXITCODE_SPINUP_AP, 483 VM_EXITCODE_DEPRECATED1, /* used to be SPINDOWN_CPU */ 484 VM_EXITCODE_RENDEZVOUS, 485 VM_EXITCODE_IOAPIC_EOI, 486 VM_EXITCODE_SUSPENDED, 487 VM_EXITCODE_INOUT_STR, 488 VM_EXITCODE_TASK_SWITCH, 489 VM_EXITCODE_MAX 490 }; 491 492 struct vm_inout { 493 uint16_t bytes:3; /* 1 or 2 or 4 */ 494 uint16_t in:1; 495 uint16_t string:1; 496 uint16_t rep:1; 497 uint16_t port; 498 uint32_t eax; /* valid for out */ 499 }; 500 501 struct vm_inout_str { 502 struct vm_inout inout; /* must be the first element */ 503 struct vm_guest_paging paging; 504 uint64_t rflags; 505 uint64_t cr0; 506 uint64_t index; 507 uint64_t count; /* rep=1 (%rcx), rep=0 (1) */ 508 int addrsize; 509 enum vm_reg_name seg_name; 510 struct seg_desc seg_desc; 511 }; 512 513 enum task_switch_reason { 514 TSR_CALL, 515 TSR_IRET, 516 TSR_JMP, 517 TSR_IDT_GATE, /* task gate in IDT */ 518 }; 519 520 struct vm_task_switch { 521 uint16_t tsssel; /* new TSS selector */ 522 int ext; /* task switch due to external event */ 523 uint32_t errcode; 524 int errcode_valid; /* push 'errcode' on the new stack */ 525 enum task_switch_reason reason; 526 struct vm_guest_paging paging; 527 }; 528 529 struct vm_exit { 530 enum vm_exitcode exitcode; 531 int inst_length; /* 0 means unknown */ 532 uint64_t rip; 533 union { 534 struct vm_inout inout; 535 struct vm_inout_str inout_str; 536 struct { 537 uint64_t gpa; 538 int fault_type; 539 } paging; 540 struct { 541 uint64_t gpa; 542 uint64_t gla; 543 int cs_d; /* CS.D */ 544 struct vm_guest_paging paging; 545 struct vie vie; 546 } inst_emul; 547 /* 548 * VMX specific payload. Used when there is no "better" 549 * exitcode to represent the VM-exit. 550 */ 551 struct { 552 int status; /* vmx inst status */ 553 /* 554 * 'exit_reason' and 'exit_qualification' are valid 555 * only if 'status' is zero. 556 */ 557 uint32_t exit_reason; 558 uint64_t exit_qualification; 559 /* 560 * 'inst_error' and 'inst_type' are valid 561 * only if 'status' is non-zero. 562 */ 563 int inst_type; 564 int inst_error; 565 } vmx; 566 struct { 567 uint32_t code; /* ecx value */ 568 uint64_t wval; 569 } msr; 570 struct { 571 int vcpu; 572 uint64_t rip; 573 } spinup_ap; 574 struct { 575 uint64_t rflags; 576 } hlt; 577 struct { 578 int vector; 579 } ioapic_eoi; 580 struct { 581 enum vm_suspend_how how; 582 } suspended; 583 struct vm_task_switch task_switch; 584 } u; 585 }; 586 587 /* APIs to inject faults into the guest */ 588 void vm_inject_fault(void *vm, int vcpuid, int vector, int errcode_valid, 589 int errcode); 590 591 static __inline void 592 vm_inject_ud(void *vm, int vcpuid) 593 { 594 vm_inject_fault(vm, vcpuid, IDT_UD, 0, 0); 595 } 596 597 static __inline void 598 vm_inject_gp(void *vm, int vcpuid) 599 { 600 vm_inject_fault(vm, vcpuid, IDT_GP, 1, 0); 601 } 602 603 static __inline void 604 vm_inject_ac(void *vm, int vcpuid, int errcode) 605 { 606 vm_inject_fault(vm, vcpuid, IDT_AC, 1, errcode); 607 } 608 609 static __inline void 610 vm_inject_ss(void *vm, int vcpuid, int errcode) 611 { 612 vm_inject_fault(vm, vcpuid, IDT_SS, 1, errcode); 613 } 614 615 void vm_inject_pf(void *vm, int vcpuid, int error_code, uint64_t cr2); 616 617 #endif /* _VMM_H_ */ 618