arch/ia64/include/asm/kvm_host.h

   1 /*
   2  * kvm_host.h: used for kvm module, and hold ia64-specific sections.
   3  *
   4  * Copyright (C) 2007, Intel Corporation.
   5  *
   6  * Xiantao Zhang <xiantao.zhang@intel.com>
   7  *
   8  * This program is free software; you can redistribute it and/or modify it
   9  * under the terms and conditions of the GNU General Public License,
  10  * version 2, as published by the Free Software Foundation.
  11  *
  12  * This program is distributed in the hope it will be useful, but WITHOUT
  13  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  15  * more details.
  16  *
  17  * You should have received a copy of the GNU General Public License along with
  18  * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
  19  * Place - Suite 330, Boston, MA 02111-1307 USA.
  20  *
  21  */
  22
  23 #ifndef __ASM_KVM_HOST_H
  24 #define __ASM_KVM_HOST_H
  25
  26 #define KVM_MEMORY_SLOTS 32
  27 /* memory slots that does not exposed to userspace */
  28 #define KVM_PRIVATE_MEM_SLOTS 4
  29
  30 #define KVM_COALESCED_MMIO_PAGE_OFFSET 1
  31
  32 /* define exit reasons from vmm to kvm*/
  33 #define EXIT_REASON_VM_PANIC            0
  34 #define EXIT_REASON_MMIO_INSTRUCTION    1
  35 #define EXIT_REASON_PAL_CALL            2
  36 #define EXIT_REASON_SAL_CALL            3
  37 #define EXIT_REASON_SWITCH_RR6          4
  38 #define EXIT_REASON_VM_DESTROY          5
  39 #define EXIT_REASON_EXTERNAL_INTERRUPT  6
  40 #define EXIT_REASON_IPI                 7
  41 #define EXIT_REASON_PTC_G               8
  42
  43 /*Define vmm address space and vm data space.*/
  44 #define KVM_VMM_SIZE (__IA64_UL_CONST(16)<<20)
  45 #define KVM_VMM_SHIFT 24
  46 #define KVM_VMM_BASE 0xD000000000000000
  47 #define VMM_SIZE (__IA64_UL_CONST(8)<<20)
  48
  49 /*
  50  * Define vm_buffer, used by PAL Services, base address.
  51  * Note: vm_buffer is in the VMM-BLOCK, the size must be < 8M
  52  */
  53 #define KVM_VM_BUFFER_BASE (KVM_VMM_BASE + VMM_SIZE)
  54 #define KVM_VM_BUFFER_SIZE (__IA64_UL_CONST(8)<<20)
  55
  56 /*
  57  * kvm guest's data area looks as follow:
  58  *
  59  *            +----------------------+  ------- KVM_VM_DATA_SIZE
  60  *            |     vcpu[n]'s data   |   |     ___________________KVM_STK_OFFSET
  61  *            |                      |   |    /                   |
  62  *            |        ..........    |   |   /vcpu's struct&stack |
  63  *            |        ..........    |   |  /---------------------|---- 0
  64  *            |     vcpu[5]'s data   |   | /       vpd            |
  65  *            |     vcpu[4]'s data   |   |/-----------------------|
  66  *            |     vcpu[3]'s data   |   /         vtlb           |
  67  *            |     vcpu[2]'s data   |  /|------------------------|
  68  *            |     vcpu[1]'s data   |/  |         vhpt           |
  69  *            |     vcpu[0]'s data   |____________________________|
  70  *            +----------------------+   |
  71  *            |    memory dirty log  |   |
  72  *            +----------------------+   |
  73  *            |    vm's data struct  |   |
  74  *            +----------------------+   |
  75  *            |                      |   |
  76  *            |                      |   |
  77  *            |                      |   |
  78  *            |                      |   |
  79  *            |                      |   |
  80  *            |                      |   |
  81  *            |                      |   |
  82  *            |   vm's p2m table  |      |
  83  *            |                      |   |
  84  *            |                      |   |
  85  *            |                      |   |  |
  86  * vm's data->|                      |   |  |
  87  *            +----------------------+ ------- 0
  88  * To support large memory, needs to increase the size of p2m.
  89  * To support more vcpus, needs to ensure it has enough space to
  90  * hold vcpus' data.
  91  */
  92
  93 #define KVM_VM_DATA_SHIFT       26
  94 #define KVM_VM_DATA_SIZE        (__IA64_UL_CONST(1) << KVM_VM_DATA_SHIFT)
  95 #define KVM_VM_DATA_BASE        (KVM_VMM_BASE + KVM_VM_DATA_SIZE)
  96
  97 #define KVM_P2M_BASE            KVM_VM_DATA_BASE
  98 #define KVM_P2M_SIZE            (__IA64_UL_CONST(24) << 20)
  99
 100 #define VHPT_SHIFT              16
 101 #define VHPT_SIZE               (__IA64_UL_CONST(1) << VHPT_SHIFT)
 102 #define VHPT_NUM_ENTRIES        (__IA64_UL_CONST(1) << (VHPT_SHIFT-5))
 103
 104 #define VTLB_SHIFT              16
 105 #define VTLB_SIZE               (__IA64_UL_CONST(1) << VTLB_SHIFT)
 106 #define VTLB_NUM_ENTRIES        (1UL << (VHPT_SHIFT-5))
 107
 108 #define VPD_SHIFT               16
 109 #define VPD_SIZE                (__IA64_UL_CONST(1) << VPD_SHIFT)
 110
 111 #define VCPU_STRUCT_SHIFT       16
 112 #define VCPU_STRUCT_SIZE        (__IA64_UL_CONST(1) << VCPU_STRUCT_SHIFT)
 113
 114 #define KVM_STK_OFFSET          VCPU_STRUCT_SIZE
 115
 116 #define KVM_VM_STRUCT_SHIFT     19
 117 #define KVM_VM_STRUCT_SIZE      (__IA64_UL_CONST(1) << KVM_VM_STRUCT_SHIFT)
 118
 119 #define KVM_MEM_DIRY_LOG_SHIFT  19
 120 #define KVM_MEM_DIRTY_LOG_SIZE (__IA64_UL_CONST(1) << KVM_MEM_DIRY_LOG_SHIFT)
 121
 122 #ifndef __ASSEMBLY__
 123
 124 /*Define the max vcpus and memory for Guests.*/
 125 #define KVM_MAX_VCPUS   (KVM_VM_DATA_SIZE - KVM_P2M_SIZE - KVM_VM_STRUCT_SIZE -\
 126                         KVM_MEM_DIRTY_LOG_SIZE) / sizeof(struct kvm_vcpu_data)
 127 #define KVM_MAX_MEM_SIZE (KVM_P2M_SIZE >> 3 << PAGE_SHIFT)
 128
 129 #include <linux/types.h>
 130 #include <linux/mm.h>
 131 #include <linux/kvm.h>
 132 #include <linux/kvm_para.h>
 133 #include <linux/kvm_types.h>
 134
 135 #include <asm/pal.h>
 136 #include <asm/sal.h>
 137 #include <asm/page.h>
 138
 139 struct kvm_vcpu_data {
 140         char vcpu_vhpt[VHPT_SIZE];
 141         char vcpu_vtlb[VTLB_SIZE];
 142         char vcpu_vpd[VPD_SIZE];
 143         char vcpu_struct[VCPU_STRUCT_SIZE];
 144 };
 145
 146 struct kvm_vm_data {
 147         char kvm_p2m[KVM_P2M_SIZE];
 148         char kvm_vm_struct[KVM_VM_STRUCT_SIZE];
 149         char kvm_mem_dirty_log[KVM_MEM_DIRTY_LOG_SIZE];
 150         struct kvm_vcpu_data vcpu_data[KVM_MAX_VCPUS];
 151 };
 152
 153 #define VCPU_BASE(n)    KVM_VM_DATA_BASE + \
 154                                 offsetof(struct kvm_vm_data, vcpu_data[n])
 155 #define VM_BASE         KVM_VM_DATA_BASE + \
 156                                 offsetof(struct kvm_vm_data, kvm_vm_struct)
 157 #define KVM_MEM_DIRTY_LOG_BASE  KVM_VM_DATA_BASE + \
 158                                 offsetof(struct kvm_vm_data, kvm_mem_dirty_log)
 159
 160 #define VHPT_BASE(n) (VCPU_BASE(n) + offsetof(struct kvm_vcpu_data, vcpu_vhpt))
 161 #define VTLB_BASE(n) (VCPU_BASE(n) + offsetof(struct kvm_vcpu_data, vcpu_vtlb))
 162 #define VPD_BASE(n)  (VCPU_BASE(n) + offsetof(struct kvm_vcpu_data, vcpu_vpd))
 163 #define VCPU_STRUCT_BASE(n)     (VCPU_BASE(n) + \
 164                                 offsetof(struct kvm_vcpu_data, vcpu_struct))
 165
 166 /*IO section definitions*/
 167 #define IOREQ_READ      1
 168 #define IOREQ_WRITE     0
 169
 170 #define STATE_IOREQ_NONE        0
 171 #define STATE_IOREQ_READY       1
 172 #define STATE_IOREQ_INPROCESS   2
 173 #define STATE_IORESP_READY      3
 174
 175 /*Guest Physical address layout.*/
 176 #define GPFN_MEM        (0UL << 60) /* Guest pfn is normal mem */
 177 #define GPFN_FRAME_BUFFER   (1UL << 60) /* VGA framebuffer */
 178 #define GPFN_LOW_MMIO       (2UL << 60) /* Low MMIO range */
 179 #define GPFN_PIB        (3UL << 60) /* PIB base */
 180 #define GPFN_IOSAPIC        (4UL << 60) /* IOSAPIC base */
 181 #define GPFN_LEGACY_IO      (5UL << 60) /* Legacy I/O base */
 182 #define GPFN_GFW        (6UL << 60) /* Guest Firmware */
 183 #define GPFN_PHYS_MMIO      (7UL << 60) /* Directed MMIO Range */
 184
 185 #define GPFN_IO_MASK        (7UL << 60) /* Guest pfn is I/O type */
 186 #define GPFN_INV_MASK       (1UL << 63) /* Guest pfn is invalid */
 187 #define INVALID_MFN       (~0UL)
 188 #define MEM_G   (1UL << 30)
 189 #define MEM_M   (1UL << 20)
 190 #define MMIO_START       (3 * MEM_G)
 191 #define MMIO_SIZE        (512 * MEM_M)
 192 #define VGA_IO_START     0xA0000UL
 193 #define VGA_IO_SIZE      0x20000
 194 #define LEGACY_IO_START  (MMIO_START + MMIO_SIZE)
 195 #define LEGACY_IO_SIZE   (64 * MEM_M)
 196 #define IO_SAPIC_START   0xfec00000UL
 197 #define IO_SAPIC_SIZE    0x100000
 198 #define PIB_START 0xfee00000UL
 199 #define PIB_SIZE 0x200000
 200 #define GFW_START        (4 * MEM_G - 16 * MEM_M)
 201 #define GFW_SIZE         (16 * MEM_M)
 202
 203 /*Deliver mode, defined for ioapic.c*/
 204 #define dest_Fixed IOSAPIC_FIXED
 205 #define dest_LowestPrio IOSAPIC_LOWEST_PRIORITY
 206
 207 #define NMI_VECTOR                      2
 208 #define ExtINT_VECTOR                   0
 209 #define NULL_VECTOR                     (-1)
 210 #define IA64_SPURIOUS_INT_VECTOR        0x0f
 211
 212 #define VCPU_LID(v) (((u64)(v)->vcpu_id) << 24)
 213
 214 /*
 215  *Delivery mode
 216  */
 217 #define SAPIC_DELIV_SHIFT      8
 218 #define SAPIC_FIXED            0x0
 219 #define SAPIC_LOWEST_PRIORITY  0x1
 220 #define SAPIC_PMI              0x2
 221 #define SAPIC_NMI              0x4
 222 #define SAPIC_INIT             0x5
 223 #define SAPIC_EXTINT           0x7
 224
 225 /*
 226  * vcpu->requests bit members for arch
 227  */
 228 #define KVM_REQ_PTC_G           32
 229 #define KVM_REQ_RESUME          33
 230
 231 #define KVM_PAGES_PER_HPAGE     1
 232
 233 struct kvm;
 234 struct kvm_vcpu;
 235 struct kvm_guest_debug{
 236 };
 237
 238 struct kvm_mmio_req {
 239         uint64_t addr;          /*  physical address            */
 240         uint64_t size;          /*  size in bytes               */
 241         uint64_t data;          /*  data (or paddr of data)     */
 242         uint8_t state:4;
 243         uint8_t dir:1;          /*  1=read, 0=write             */
 244 };
 245
 246 /*Pal data struct */
 247 struct kvm_pal_call{
 248         /*In area*/
 249         uint64_t gr28;
 250         uint64_t gr29;
 251         uint64_t gr30;
 252         uint64_t gr31;
 253         /*Out area*/
 254         struct ia64_pal_retval ret;
 255 };
 256
 257 /* Sal data structure */
 258 struct kvm_sal_call{
 259         /*In area*/
 260         uint64_t in0;
 261         uint64_t in1;
 262         uint64_t in2;
 263         uint64_t in3;
 264         uint64_t in4;
 265         uint64_t in5;
 266         uint64_t in6;
 267         uint64_t in7;
 268         struct sal_ret_values ret;
 269 };
 270
 271 /*Guest change rr6*/
 272 struct kvm_switch_rr6 {
 273         uint64_t old_rr;
 274         uint64_t new_rr;
 275 };
 276
 277 union ia64_ipi_a{
 278         unsigned long val;
 279         struct {
 280                 unsigned long rv  : 3;
 281                 unsigned long ir  : 1;
 282                 unsigned long eid : 8;
 283                 unsigned long id  : 8;
 284                 unsigned long ib_base : 44;
 285         };
 286 };
 287
 288 union ia64_ipi_d {
 289         unsigned long val;
 290         struct {
 291                 unsigned long vector : 8;
 292                 unsigned long dm  : 3;
 293                 unsigned long ig  : 53;
 294         };
 295 };
 296
 297 /*ipi check exit data*/
 298 struct kvm_ipi_data{
 299         union ia64_ipi_a addr;
 300         union ia64_ipi_d data;
 301 };
 302
 303 /*global purge data*/
 304 struct kvm_ptc_g {
 305         unsigned long vaddr;
 306         unsigned long rr;
 307         unsigned long ps;
 308         struct kvm_vcpu *vcpu;
 309 };
 310
 311 /*Exit control data */
 312 struct exit_ctl_data{
 313         uint32_t exit_reason;
 314         uint32_t vm_status;
 315         union {
 316                 struct kvm_mmio_req     ioreq;
 317                 struct kvm_pal_call     pal_data;
 318                 struct kvm_sal_call     sal_data;
 319                 struct kvm_switch_rr6   rr_data;
 320                 struct kvm_ipi_data     ipi_data;
 321                 struct kvm_ptc_g        ptc_g_data;
 322         } u;
 323 };
 324
 325 union pte_flags {
 326         unsigned long val;
 327         struct {
 328                 unsigned long p    :  1; /*0      */
 329                 unsigned long      :  1; /* 1     */
 330                 unsigned long ma   :  3; /* 2-4   */
 331                 unsigned long a    :  1; /* 5     */
 332                 unsigned long d    :  1; /* 6     */
 333                 unsigned long pl   :  2; /* 7-8   */
 334                 unsigned long ar   :  3; /* 9-11  */
 335                 unsigned long ppn  : 38; /* 12-49 */
 336                 unsigned long      :  2; /* 50-51 */
 337                 unsigned long ed   :  1; /* 52    */
 338         };
 339 };
 340
 341 union ia64_pta {
 342         unsigned long val;
 343         struct {
 344                 unsigned long ve : 1;
 345                 unsigned long reserved0 : 1;
 346                 unsigned long size : 6;
 347                 unsigned long vf : 1;
 348                 unsigned long reserved1 : 6;
 349                 unsigned long base : 49;
 350         };
 351 };
 352
 353 struct thash_cb {
 354         /* THASH base information */
 355         struct thash_data       *hash; /* hash table pointer */
 356         union ia64_pta          pta;
 357         int           num;
 358 };
 359
 360 struct kvm_vcpu_stat {
 361 };
 362
 363 struct kvm_vcpu_arch {
 364         int launched;
 365         int last_exit;
 366         int last_run_cpu;
 367         int vmm_tr_slot;
 368         int vm_tr_slot;
 369
 370 #define KVM_MP_STATE_RUNNABLE          0
 371 #define KVM_MP_STATE_UNINITIALIZED     1
 372 #define KVM_MP_STATE_INIT_RECEIVED     2
 373 #define KVM_MP_STATE_HALTED            3
 374         int mp_state;
 375
 376 #define MAX_PTC_G_NUM                   3
 377         int ptc_g_count;
 378         struct kvm_ptc_g ptc_g_data[MAX_PTC_G_NUM];
 379
 380         /*halt timer to wake up sleepy vcpus*/
 381         struct hrtimer hlt_timer;
 382         long ht_active;
 383
 384         struct kvm_lapic *apic;    /* kernel irqchip context */
 385         struct vpd *vpd;
 386
 387         /* Exit data for vmm_transition*/
 388         struct exit_ctl_data exit_data;
 389
 390         cpumask_t cache_coherent_map;
 391
 392         unsigned long vmm_rr;
 393         unsigned long host_rr6;
 394         unsigned long psbits[8];
 395         unsigned long cr_iipa;
 396         unsigned long cr_isr;
 397         unsigned long vsa_base;
 398         unsigned long dirty_log_lock_pa;
 399         unsigned long __gp;
 400         /* TR and TC.  */
 401         struct thash_data itrs[NITRS];
 402         struct thash_data dtrs[NDTRS];
 403         /* Bit is set if there is a tr/tc for the region.  */
 404         unsigned char itr_regions;
 405         unsigned char dtr_regions;
 406         unsigned char tc_regions;
 407         /* purge all */
 408         unsigned long ptce_base;
 409         unsigned long ptce_count[2];
 410         unsigned long ptce_stride[2];
 411         /* itc/itm */
 412         unsigned long last_itc;
 413         long itc_offset;
 414         unsigned long itc_check;
 415         unsigned long timer_check;
 416         unsigned int timer_pending;
 417         unsigned int timer_fired;
 418
 419         unsigned long vrr[8];
 420         unsigned long ibr[8];
 421         unsigned long dbr[8];
 422         unsigned long insvc[4];         /* Interrupt in service.  */
 423         unsigned long xtp;
 424
 425         unsigned long metaphysical_rr0; /* from kvm_arch (so is pinned) */
 426         unsigned long metaphysical_rr4; /* from kvm_arch (so is pinned) */
 427         unsigned long metaphysical_saved_rr0; /* from kvm_arch          */
 428         unsigned long metaphysical_saved_rr4; /* from kvm_arch          */
 429         unsigned long fp_psr;       /*used for lazy float register */
 430         unsigned long saved_gp;
 431         /*for phycial  emulation */
 432         int mode_flags;
 433         struct thash_cb vtlb;
 434         struct thash_cb vhpt;
 435         char irq_check;
 436         char irq_new_pending;
 437
 438         unsigned long opcode;
 439         unsigned long cause;
 440         union context host;
 441         union context guest;
 442 };
 443
 444 struct kvm_vm_stat {
 445         u64 remote_tlb_flush;
 446 };
 447
 448 struct kvm_sal_data {
 449         unsigned long boot_ip;
 450         unsigned long boot_gp;
 451 };
 452
 453 struct kvm_arch {
 454         spinlock_t dirty_log_lock;
 455
 456         unsigned long   vm_base;
 457         unsigned long   metaphysical_rr0;
 458         unsigned long   metaphysical_rr4;
 459         unsigned long   vmm_init_rr;
 460
 461         struct kvm_ioapic *vioapic;
 462         struct kvm_vm_stat stat;
 463         struct kvm_sal_data rdv_sal_data;
 464
 465         struct list_head assigned_dev_head;
 466         struct dmar_domain *intel_iommu_domain;
 467         struct hlist_head irq_ack_notifier_list;
 468
 469         unsigned long irq_sources_bitmap;
 470         unsigned long irq_states[KVM_IOAPIC_NUM_PINS];
 471 };
 472
 473 union cpuid3_t {
 474         u64 value;
 475         struct {
 476                 u64 number : 8;
 477                 u64 revision : 8;
 478                 u64 model : 8;
 479                 u64 family : 8;
 480                 u64 archrev : 8;
 481                 u64 rv : 24;
 482         };
 483 };
 484
 485 struct kvm_pt_regs {
 486         /* The following registers are saved by SAVE_MIN: */
 487         unsigned long b6;  /* scratch */
 488         unsigned long b7;  /* scratch */
 489
 490         unsigned long ar_csd; /* used by cmp8xchg16 (scratch) */
 491         unsigned long ar_ssd; /* reserved for future use (scratch) */
 492
 493         unsigned long r8;  /* scratch (return value register 0) */
 494         unsigned long r9;  /* scratch (return value register 1) */
 495         unsigned long r10; /* scratch (return value register 2) */
 496         unsigned long r11; /* scratch (return value register 3) */
 497
 498         unsigned long cr_ipsr; /* interrupted task's psr */
 499         unsigned long cr_iip;  /* interrupted task's instruction pointer */
 500         unsigned long cr_ifs;  /* interrupted task's function state */
 501
 502         unsigned long ar_unat; /* interrupted task's NaT register (preserved) */
 503         unsigned long ar_pfs;  /* prev function state  */
 504         unsigned long ar_rsc;  /* RSE configuration */
 505         /* The following two are valid only if cr_ipsr.cpl > 0: */
 506         unsigned long ar_rnat;  /* RSE NaT */
 507         unsigned long ar_bspstore; /* RSE bspstore */
 508
 509         unsigned long pr;  /* 64 predicate registers (1 bit each) */
 510         unsigned long b0;  /* return pointer (bp) */
 511         unsigned long loadrs;  /* size of dirty partition << 16 */
 512
 513         unsigned long r1;  /* the gp pointer */
 514         unsigned long r12; /* interrupted task's memory stack pointer */
 515         unsigned long r13; /* thread pointer */
 516
 517         unsigned long ar_fpsr;  /* floating point status (preserved) */
 518         unsigned long r15;  /* scratch */
 519
 520         /* The remaining registers are NOT saved for system calls.  */
 521         unsigned long r14;  /* scratch */
 522         unsigned long r2;  /* scratch */
 523         unsigned long r3;  /* scratch */
 524         unsigned long r16;  /* scratch */
 525         unsigned long r17;  /* scratch */
 526         unsigned long r18;  /* scratch */
 527         unsigned long r19;  /* scratch */
 528         unsigned long r20;  /* scratch */
 529         unsigned long r21;  /* scratch */
 530         unsigned long r22;  /* scratch */
 531         unsigned long r23;  /* scratch */
 532         unsigned long r24;  /* scratch */
 533         unsigned long r25;  /* scratch */
 534         unsigned long r26;  /* scratch */
 535         unsigned long r27;  /* scratch */
 536         unsigned long r28;  /* scratch */
 537         unsigned long r29;  /* scratch */
 538         unsigned long r30;  /* scratch */
 539         unsigned long r31;  /* scratch */
 540         unsigned long ar_ccv;  /* compare/exchange value (scratch) */
 541
 542         /*
 543          * Floating point registers that the kernel considers scratch:
 544          */
 545         struct ia64_fpreg f6;  /* scratch */
 546         struct ia64_fpreg f7;  /* scratch */
 547         struct ia64_fpreg f8;  /* scratch */
 548         struct ia64_fpreg f9;  /* scratch */
 549         struct ia64_fpreg f10;  /* scratch */
 550         struct ia64_fpreg f11;  /* scratch */
 551
 552         unsigned long r4;  /* preserved */
 553         unsigned long r5;  /* preserved */
 554         unsigned long r6;  /* preserved */
 555         unsigned long r7;  /* preserved */
 556         unsigned long eml_unat;    /* used for emulating instruction */
 557         unsigned long pad0;     /* alignment pad */
 558 };
 559
 560 static inline struct kvm_pt_regs *vcpu_regs(struct kvm_vcpu *v)
 561 {
 562         return (struct kvm_pt_regs *) ((unsigned long) v + KVM_STK_OFFSET) - 1;
 563 }
 564
 565 typedef int kvm_vmm_entry(void);
 566 typedef void kvm_tramp_entry(union context *host, union context *guest);
 567
 568 struct kvm_vmm_info{
 569         struct module   *module;
 570         kvm_vmm_entry   *vmm_entry;
 571         kvm_tramp_entry *tramp_entry;
 572         unsigned long   vmm_ivt;
 573 };
 574
 575 int kvm_highest_pending_irq(struct kvm_vcpu *vcpu);
 576 int kvm_emulate_halt(struct kvm_vcpu *vcpu);
 577 int kvm_pal_emul(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run);
 578 void kvm_sal_emul(struct kvm_vcpu *vcpu);
 579
 580 static inline void kvm_inject_nmi(struct kvm_vcpu *vcpu) {}
 581 #endif /* __ASSEMBLY__*/
 582
 583 #endif