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 struct vlapic *vm_lapic(struct vm *vm, int cpu); 199 struct vioapic *vm_ioapic(struct vm *vm); 200 struct vhpet *vm_hpet(struct vm *vm); 201 int vm_get_capability(struct vm *vm, int vcpu, int type, int *val); 202 int vm_set_capability(struct vm *vm, int vcpu, int type, int val); 203 int vm_get_x2apic_state(struct vm *vm, int vcpu, enum x2apic_state *state); 204 int vm_set_x2apic_state(struct vm *vm, int vcpu, enum x2apic_state state); 205 int vm_apicid2vcpuid(struct vm *vm, int apicid); 206 int vm_activate_cpu(struct vm *vm, int vcpu); 207 cpuset_t vm_active_cpus(struct vm *vm); 208 cpuset_t vm_suspended_cpus(struct vm *vm); 209 struct vm_exit *vm_exitinfo(struct vm *vm, int vcpuid); 210 void vm_exit_suspended(struct vm *vm, int vcpuid, uint64_t rip); 211 void vm_exit_rendezvous(struct vm *vm, int vcpuid, uint64_t rip); 212 void vm_exit_astpending(struct vm *vm, int vcpuid, uint64_t rip); 213 214 /* 215 * Rendezvous all vcpus specified in 'dest' and execute 'func(arg)'. 216 * The rendezvous 'func(arg)' is not allowed to do anything that will 217 * cause the thread to be put to sleep. 218 * 219 * If the rendezvous is being initiated from a vcpu context then the 220 * 'vcpuid' must refer to that vcpu, otherwise it should be set to -1. 221 * 222 * The caller cannot hold any locks when initiating the rendezvous. 223 * 224 * The implementation of this API may cause vcpus other than those specified 225 * by 'dest' to be stalled. The caller should not rely on any vcpus making 226 * forward progress when the rendezvous is in progress. 227 */ 228 typedef void (*vm_rendezvous_func_t)(struct vm *vm, int vcpuid, void *arg); 229 void vm_smp_rendezvous(struct vm *vm, int vcpuid, cpuset_t dest, 230 vm_rendezvous_func_t func, void *arg); 231 232 static __inline int 233 vcpu_rendezvous_pending(void *rendezvous_cookie) 234 { 235 236 return (*(uintptr_t *)rendezvous_cookie != 0); 237 } 238 239 static __inline int 240 vcpu_suspended(void *suspend_cookie) 241 { 242 243 return (*(int *)suspend_cookie); 244 } 245 246 /* 247 * Return 1 if device indicated by bus/slot/func is supposed to be a 248 * pci passthrough device. 249 * 250 * Return 0 otherwise. 251 */ 252 int vmm_is_pptdev(int bus, int slot, int func); 253 254 void *vm_iommu_domain(struct vm *vm); 255 256 enum vcpu_state { 257 VCPU_IDLE, 258 VCPU_FROZEN, 259 VCPU_RUNNING, 260 VCPU_SLEEPING, 261 }; 262 263 int vcpu_set_state(struct vm *vm, int vcpu, enum vcpu_state state, 264 bool from_idle); 265 enum vcpu_state vcpu_get_state(struct vm *vm, int vcpu, int *hostcpu); 266 267 static int __inline 268 vcpu_is_running(struct vm *vm, int vcpu, int *hostcpu) 269 { 270 return (vcpu_get_state(vm, vcpu, hostcpu) == VCPU_RUNNING); 271 } 272 273 #ifdef _SYS_PROC_H_ 274 static int __inline 275 vcpu_should_yield(struct vm *vm, int vcpu) 276 { 277 return (curthread->td_flags & (TDF_ASTPENDING | TDF_NEEDRESCHED)); 278 } 279 #endif 280 281 void *vcpu_stats(struct vm *vm, int vcpu); 282 void vcpu_notify_event(struct vm *vm, int vcpuid, bool lapic_intr); 283 struct vmspace *vm_get_vmspace(struct vm *vm); 284 int vm_assign_pptdev(struct vm *vm, int bus, int slot, int func); 285 int vm_unassign_pptdev(struct vm *vm, int bus, int slot, int func); 286 struct vatpic *vm_atpic(struct vm *vm); 287 struct vatpit *vm_atpit(struct vm *vm); 288 289 /* 290 * Inject exception 'vme' into the guest vcpu. This function returns 0 on 291 * success and non-zero on failure. 292 * 293 * Wrapper functions like 'vm_inject_gp()' should be preferred to calling 294 * this function directly because they enforce the trap-like or fault-like 295 * behavior of an exception. 296 * 297 * This function should only be called in the context of the thread that is 298 * executing this vcpu. 299 */ 300 int vm_inject_exception(struct vm *vm, int vcpuid, struct vm_exception *vme); 301 302 /* 303 * This function is called after a VM-exit that occurred during exception or 304 * interrupt delivery through the IDT. The format of 'intinfo' is described 305 * in Figure 15-1, "EXITINTINFO for All Intercepts", APM, Vol 2. 306 * 307 * If a VM-exit handler completes the event delivery successfully then it 308 * should call vm_exit_intinfo() to extinguish the pending event. For e.g., 309 * if the task switch emulation is triggered via a task gate then it should 310 * call this function with 'intinfo=0' to indicate that the external event 311 * is not pending anymore. 312 * 313 * Return value is 0 on success and non-zero on failure. 314 */ 315 int vm_exit_intinfo(struct vm *vm, int vcpuid, uint64_t intinfo); 316 317 /* 318 * This function is called before every VM-entry to retrieve a pending 319 * event that should be injected into the guest. This function combines 320 * nested events into a double or triple fault. 321 * 322 * Returns 0 if there are no events that need to be injected into the guest 323 * and non-zero otherwise. 324 */ 325 int vm_entry_intinfo(struct vm *vm, int vcpuid, uint64_t *info); 326 327 int vm_get_intinfo(struct vm *vm, int vcpuid, uint64_t *info1, uint64_t *info2); 328 329 enum vm_reg_name vm_segment_name(int seg_encoding); 330 331 struct vm_copyinfo { 332 uint64_t gpa; 333 size_t len; 334 void *hva; 335 void *cookie; 336 }; 337 338 /* 339 * Set up 'copyinfo[]' to copy to/from guest linear address space starting 340 * at 'gla' and 'len' bytes long. The 'prot' should be set to PROT_READ for 341 * a copyin or PROT_WRITE for a copyout. 342 * 343 * Returns 0 on success. 344 * Returns 1 if an exception was injected into the guest. 345 * Returns -1 otherwise. 346 * 347 * The 'copyinfo[]' can be passed to 'vm_copyin()' or 'vm_copyout()' only if 348 * the return value is 0. The 'copyinfo[]' resources should be freed by calling 349 * 'vm_copy_teardown()' after the copy is done. 350 */ 351 int vm_copy_setup(struct vm *vm, int vcpuid, struct vm_guest_paging *paging, 352 uint64_t gla, size_t len, int prot, struct vm_copyinfo *copyinfo, 353 int num_copyinfo); 354 void vm_copy_teardown(struct vm *vm, int vcpuid, struct vm_copyinfo *copyinfo, 355 int num_copyinfo); 356 void vm_copyin(struct vm *vm, int vcpuid, struct vm_copyinfo *copyinfo, 357 void *kaddr, size_t len); 358 void vm_copyout(struct vm *vm, int vcpuid, const void *kaddr, 359 struct vm_copyinfo *copyinfo, size_t len); 360 #endif /* KERNEL */ 361 362 #define VM_MAXCPU 16 /* maximum virtual cpus */ 363 364 /* 365 * Identifiers for optional vmm capabilities 366 */ 367 enum vm_cap_type { 368 VM_CAP_HALT_EXIT, 369 VM_CAP_MTRAP_EXIT, 370 VM_CAP_PAUSE_EXIT, 371 VM_CAP_UNRESTRICTED_GUEST, 372 VM_CAP_ENABLE_INVPCID, 373 VM_CAP_MAX 374 }; 375 376 enum vm_intr_trigger { 377 EDGE_TRIGGER, 378 LEVEL_TRIGGER 379 }; 380 381 /* 382 * The 'access' field has the format specified in Table 21-2 of the Intel 383 * Architecture Manual vol 3b. 384 * 385 * XXX The contents of the 'access' field are architecturally defined except 386 * bit 16 - Segment Unusable. 387 */ 388 struct seg_desc { 389 uint64_t base; 390 uint32_t limit; 391 uint32_t access; 392 }; 393 #define SEG_DESC_TYPE(access) ((access) & 0x001f) 394 #define SEG_DESC_DPL(access) (((access) >> 5) & 0x3) 395 #define SEG_DESC_PRESENT(access) (((access) & 0x0080) ? 1 : 0) 396 #define SEG_DESC_DEF32(access) (((access) & 0x4000) ? 1 : 0) 397 #define SEG_DESC_GRANULARITY(access) (((access) & 0x8000) ? 1 : 0) 398 #define SEG_DESC_UNUSABLE(access) (((access) & 0x10000) ? 1 : 0) 399 400 enum vm_cpu_mode { 401 CPU_MODE_REAL, 402 CPU_MODE_PROTECTED, 403 CPU_MODE_COMPATIBILITY, /* IA-32E mode (CS.L = 0) */ 404 CPU_MODE_64BIT, /* IA-32E mode (CS.L = 1) */ 405 }; 406 407 enum vm_paging_mode { 408 PAGING_MODE_FLAT, 409 PAGING_MODE_32, 410 PAGING_MODE_PAE, 411 PAGING_MODE_64, 412 }; 413 414 struct vm_guest_paging { 415 uint64_t cr3; 416 int cpl; 417 enum vm_cpu_mode cpu_mode; 418 enum vm_paging_mode paging_mode; 419 }; 420 421 /* 422 * The data structures 'vie' and 'vie_op' are meant to be opaque to the 423 * consumers of instruction decoding. The only reason why their contents 424 * need to be exposed is because they are part of the 'vm_exit' structure. 425 */ 426 struct vie_op { 427 uint8_t op_byte; /* actual opcode byte */ 428 uint8_t op_type; /* type of operation (e.g. MOV) */ 429 uint16_t op_flags; 430 }; 431 432 #define VIE_INST_SIZE 15 433 struct vie { 434 uint8_t inst[VIE_INST_SIZE]; /* instruction bytes */ 435 uint8_t num_valid; /* size of the instruction */ 436 uint8_t num_processed; 437 438 uint8_t addrsize:4, opsize:4; /* address and operand sizes */ 439 uint8_t rex_w:1, /* REX prefix */ 440 rex_r:1, 441 rex_x:1, 442 rex_b:1, 443 rex_present:1, 444 opsize_override:1, /* Operand size override */ 445 addrsize_override:1; /* Address size override */ 446 447 uint8_t mod:2, /* ModRM byte */ 448 reg:4, 449 rm:4; 450 451 uint8_t ss:2, /* SIB byte */ 452 index:4, 453 base:4; 454 455 uint8_t disp_bytes; 456 uint8_t imm_bytes; 457 458 uint8_t scale; 459 int base_register; /* VM_REG_GUEST_xyz */ 460 int index_register; /* VM_REG_GUEST_xyz */ 461 462 int64_t displacement; /* optional addr displacement */ 463 int64_t immediate; /* optional immediate operand */ 464 465 uint8_t decoded; /* set to 1 if successfully decoded */ 466 467 struct vie_op op; /* opcode description */ 468 }; 469 470 enum vm_exitcode { 471 VM_EXITCODE_INOUT, 472 VM_EXITCODE_VMX, 473 VM_EXITCODE_BOGUS, 474 VM_EXITCODE_RDMSR, 475 VM_EXITCODE_WRMSR, 476 VM_EXITCODE_HLT, 477 VM_EXITCODE_MTRAP, 478 VM_EXITCODE_PAUSE, 479 VM_EXITCODE_PAGING, 480 VM_EXITCODE_INST_EMUL, 481 VM_EXITCODE_SPINUP_AP, 482 VM_EXITCODE_DEPRECATED1, /* used to be SPINDOWN_CPU */ 483 VM_EXITCODE_RENDEZVOUS, 484 VM_EXITCODE_IOAPIC_EOI, 485 VM_EXITCODE_SUSPENDED, 486 VM_EXITCODE_INOUT_STR, 487 VM_EXITCODE_TASK_SWITCH, 488 VM_EXITCODE_MONITOR, 489 VM_EXITCODE_MWAIT, 490 VM_EXITCODE_MAX 491 }; 492 493 struct vm_inout { 494 uint16_t bytes:3; /* 1 or 2 or 4 */ 495 uint16_t in:1; 496 uint16_t string:1; 497 uint16_t rep:1; 498 uint16_t port; 499 uint32_t eax; /* valid for out */ 500 }; 501 502 struct vm_inout_str { 503 struct vm_inout inout; /* must be the first element */ 504 struct vm_guest_paging paging; 505 uint64_t rflags; 506 uint64_t cr0; 507 uint64_t index; 508 uint64_t count; /* rep=1 (%rcx), rep=0 (1) */ 509 int addrsize; 510 enum vm_reg_name seg_name; 511 struct seg_desc seg_desc; 512 }; 513 514 enum task_switch_reason { 515 TSR_CALL, 516 TSR_IRET, 517 TSR_JMP, 518 TSR_IDT_GATE, /* task gate in IDT */ 519 }; 520 521 struct vm_task_switch { 522 uint16_t tsssel; /* new TSS selector */ 523 int ext; /* task switch due to external event */ 524 uint32_t errcode; 525 int errcode_valid; /* push 'errcode' on the new stack */ 526 enum task_switch_reason reason; 527 struct vm_guest_paging paging; 528 }; 529 530 struct vm_exit { 531 enum vm_exitcode exitcode; 532 int inst_length; /* 0 means unknown */ 533 uint64_t rip; 534 union { 535 struct vm_inout inout; 536 struct vm_inout_str inout_str; 537 struct { 538 uint64_t gpa; 539 int fault_type; 540 } paging; 541 struct { 542 uint64_t gpa; 543 uint64_t gla; 544 int cs_d; /* CS.D */ 545 struct vm_guest_paging paging; 546 struct vie vie; 547 } inst_emul; 548 /* 549 * VMX specific payload. Used when there is no "better" 550 * exitcode to represent the VM-exit. 551 */ 552 struct { 553 int status; /* vmx inst status */ 554 /* 555 * 'exit_reason' and 'exit_qualification' are valid 556 * only if 'status' is zero. 557 */ 558 uint32_t exit_reason; 559 uint64_t exit_qualification; 560 /* 561 * 'inst_error' and 'inst_type' are valid 562 * only if 'status' is non-zero. 563 */ 564 int inst_type; 565 int inst_error; 566 } vmx; 567 struct { 568 uint32_t code; /* ecx value */ 569 uint64_t wval; 570 } msr; 571 struct { 572 int vcpu; 573 uint64_t rip; 574 } spinup_ap; 575 struct { 576 uint64_t rflags; 577 } hlt; 578 struct { 579 int vector; 580 } ioapic_eoi; 581 struct { 582 enum vm_suspend_how how; 583 } suspended; 584 struct vm_task_switch task_switch; 585 } u; 586 }; 587 588 /* APIs to inject faults into the guest */ 589 void vm_inject_fault(void *vm, int vcpuid, int vector, int errcode_valid, 590 int errcode); 591 592 static __inline void 593 vm_inject_ud(void *vm, int vcpuid) 594 { 595 vm_inject_fault(vm, vcpuid, IDT_UD, 0, 0); 596 } 597 598 static __inline void 599 vm_inject_gp(void *vm, int vcpuid) 600 { 601 vm_inject_fault(vm, vcpuid, IDT_GP, 1, 0); 602 } 603 604 static __inline void 605 vm_inject_ac(void *vm, int vcpuid, int errcode) 606 { 607 vm_inject_fault(vm, vcpuid, IDT_AC, 1, errcode); 608 } 609 610 static __inline void 611 vm_inject_ss(void *vm, int vcpuid, int errcode) 612 { 613 vm_inject_fault(vm, vcpuid, IDT_SS, 1, errcode); 614 } 615 616 void vm_inject_pf(void *vm, int vcpuid, int error_code, uint64_t cr2); 617 618 #endif /* _VMM_H_ */ 619