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_USER_MEM_SLOTS 32
  27
  28 #define KVM_COALESCED_MMIO_PAGE_OFFSET 1
  29 #define KVM_IRQCHIP_NUM_PINS  KVM_IOAPIC_NUM_PINS
  30
  31 /* define exit reasons from vmm to kvm*/
  32 #define EXIT_REASON_VM_PANIC            0
  33 #define EXIT_REASON_MMIO_INSTRUCTION    1
  34 #define EXIT_REASON_PAL_CALL            2
  35 #define EXIT_REASON_SAL_CALL            3
  36 #define EXIT_REASON_SWITCH_RR6          4
  37 #define EXIT_REASON_VM_DESTROY          5
  38 #define EXIT_REASON_EXTERNAL_INTERRUPT  6
  39 #define EXIT_REASON_IPI                 7
  40 #define EXIT_REASON_PTC_G               8
  41 #define EXIT_REASON_DEBUG               20
  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 /*
 115  * This must match KVM_IA64_VCPU_STACK_{SHIFT,SIZE} arch/ia64/include/asm/kvm.h
 116  */
 117 #define KVM_STK_SHIFT           16
 118 #define KVM_STK_OFFSET          (__IA64_UL_CONST(1)<< KVM_STK_SHIFT)
 119
 120 #define KVM_VM_STRUCT_SHIFT     19
 121 #define KVM_VM_STRUCT_SIZE      (__IA64_UL_CONST(1) << KVM_VM_STRUCT_SHIFT)
 122
 123 #define KVM_MEM_DIRY_LOG_SHIFT  19
 124 #define KVM_MEM_DIRTY_LOG_SIZE (__IA64_UL_CONST(1) << KVM_MEM_DIRY_LOG_SHIFT)
 125
 126 #ifndef __ASSEMBLY__
 127
 128 /*Define the max vcpus and memory for Guests.*/
 129 #define KVM_MAX_VCPUS   (KVM_VM_DATA_SIZE - KVM_P2M_SIZE - KVM_VM_STRUCT_SIZE -\
 130                         KVM_MEM_DIRTY_LOG_SIZE) / sizeof(struct kvm_vcpu_data)
 131 #define KVM_MAX_MEM_SIZE (KVM_P2M_SIZE >> 3 << PAGE_SHIFT)
 132
 133 #define VMM_LOG_LEN 256
 134
 135 #include <linux/types.h>
 136 #include <linux/mm.h>
 137 #include <linux/kvm.h>
 138 #include <linux/kvm_para.h>
 139 #include <linux/kvm_types.h>
 140
 141 #include <asm/pal.h>
 142 #include <asm/sal.h>
 143 #include <asm/page.h>
 144
 145 struct kvm_vcpu_data {
 146         char vcpu_vhpt[VHPT_SIZE];
 147         char vcpu_vtlb[VTLB_SIZE];
 148         char vcpu_vpd[VPD_SIZE];
 149         char vcpu_struct[VCPU_STRUCT_SIZE];
 150 };
 151
 152 struct kvm_vm_data {
 153         char kvm_p2m[KVM_P2M_SIZE];
 154         char kvm_vm_struct[KVM_VM_STRUCT_SIZE];
 155         char kvm_mem_dirty_log[KVM_MEM_DIRTY_LOG_SIZE];
 156         struct kvm_vcpu_data vcpu_data[KVM_MAX_VCPUS];
 157 };
 158
 159 #define VCPU_BASE(n)    (KVM_VM_DATA_BASE + \
 160                                 offsetof(struct kvm_vm_data, vcpu_data[n]))
 161 #define KVM_VM_BASE     (KVM_VM_DATA_BASE + \
 162                                 offsetof(struct kvm_vm_data, kvm_vm_struct))
 163 #define KVM_MEM_DIRTY_LOG_BASE  KVM_VM_DATA_BASE + \
 164                                 offsetof(struct kvm_vm_data, kvm_mem_dirty_log)
 165
 166 #define VHPT_BASE(n) (VCPU_BASE(n) + offsetof(struct kvm_vcpu_data, vcpu_vhpt))
 167 #define VTLB_BASE(n) (VCPU_BASE(n) + offsetof(struct kvm_vcpu_data, vcpu_vtlb))
 168 #define VPD_BASE(n)  (VCPU_BASE(n) + offsetof(struct kvm_vcpu_data, vcpu_vpd))
 169 #define VCPU_STRUCT_BASE(n)     (VCPU_BASE(n) + \
 170                                 offsetof(struct kvm_vcpu_data, vcpu_struct))
 171
 172 /*IO section definitions*/
 173 #define IOREQ_READ      1
 174 #define IOREQ_WRITE     0
 175
 176 #define STATE_IOREQ_NONE        0
 177 #define STATE_IOREQ_READY       1
 178 #define STATE_IOREQ_INPROCESS   2
 179 #define STATE_IORESP_READY      3
 180
 181 /*Guest Physical address layout.*/
 182 #define GPFN_MEM        (0UL << 60) /* Guest pfn is normal mem */
 183 #define GPFN_FRAME_BUFFER   (1UL << 60) /* VGA framebuffer */
 184 #define GPFN_LOW_MMIO       (2UL << 60) /* Low MMIO range */
 185 #define GPFN_PIB        (3UL << 60) /* PIB base */
 186 #define GPFN_IOSAPIC        (4UL << 60) /* IOSAPIC base */
 187 #define GPFN_LEGACY_IO      (5UL << 60) /* Legacy I/O base */
 188 #define GPFN_GFW        (6UL << 60) /* Guest Firmware */
 189 #define GPFN_PHYS_MMIO      (7UL << 60) /* Directed MMIO Range */
 190
 191 #define GPFN_IO_MASK        (7UL << 60) /* Guest pfn is I/O type */
 192 #define GPFN_INV_MASK       (1UL << 63) /* Guest pfn is invalid */
 193 #define INVALID_MFN       (~0UL)
 194 #define MEM_G   (1UL << 30)
 195 #define MEM_M   (1UL << 20)
 196 #define MMIO_START       (3 * MEM_G)
 197 #define MMIO_SIZE        (512 * MEM_M)
 198 #define VGA_IO_START     0xA0000UL
 199 #define VGA_IO_SIZE      0x20000
 200 #define LEGACY_IO_START  (MMIO_START + MMIO_SIZE)
 201 #define LEGACY_IO_SIZE   (64 * MEM_M)
 202 #define IO_SAPIC_START   0xfec00000UL
 203 #define IO_SAPIC_SIZE    0x100000
 204 #define PIB_START 0xfee00000UL
 205 #define PIB_SIZE 0x200000
 206 #define GFW_START        (4 * MEM_G - 16 * MEM_M)
 207 #define GFW_SIZE         (16 * MEM_M)
 208
 209 /*Deliver mode, defined for ioapic.c*/
 210 #define dest_Fixed IOSAPIC_FIXED
 211 #define dest_LowestPrio IOSAPIC_LOWEST_PRIORITY
 212
 213 #define NMI_VECTOR                      2
 214 #define ExtINT_VECTOR                   0
 215 #define NULL_VECTOR                     (-1)
 216 #define IA64_SPURIOUS_INT_VECTOR        0x0f
 217
 218 #define VCPU_LID(v) (((u64)(v)->vcpu_id) << 24)
 219
 220 /*
 221  *Delivery mode
 222  */
 223 #define SAPIC_DELIV_SHIFT      8
 224 #define SAPIC_FIXED            0x0
 225 #define SAPIC_LOWEST_PRIORITY  0x1
 226 #define SAPIC_PMI              0x2
 227 #define SAPIC_NMI              0x4
 228 #define SAPIC_INIT             0x5
 229 #define SAPIC_EXTINT           0x7
 230
 231 /*
 232  * vcpu->requests bit members for arch
 233  */
 234 #define KVM_REQ_PTC_G           32
 235 #define KVM_REQ_RESUME          33
 236
 237 #define KVM_HPAGE_GFN_SHIFT(x)  0
 238 #define KVM_NR_PAGE_SIZES       1
 239 #define KVM_PAGES_PER_HPAGE(x)  1
 240
 241 struct kvm;
 242 struct kvm_vcpu;
 243
 244 struct kvm_mmio_req {
 245         uint64_t addr;          /*  physical address            */
 246         uint64_t size;          /*  size in bytes               */
 247         uint64_t data;          /*  data (or paddr of data)     */
 248         uint8_t state:4;
 249         uint8_t dir:1;          /*  1=read, 0=write             */
 250 };
 251
 252 /*Pal data struct */
 253 struct kvm_pal_call{
 254         /*In area*/
 255         uint64_t gr28;
 256         uint64_t gr29;
 257         uint64_t gr30;
 258         uint64_t gr31;
 259         /*Out area*/
 260         struct ia64_pal_retval ret;
 261 };
 262
 263 /* Sal data structure */
 264 struct kvm_sal_call{
 265         /*In area*/
 266         uint64_t in0;
 267         uint64_t in1;
 268         uint64_t in2;
 269         uint64_t in3;
 270         uint64_t in4;
 271         uint64_t in5;
 272         uint64_t in6;
 273         uint64_t in7;
 274         struct sal_ret_values ret;
 275 };
 276
 277 /*Guest change rr6*/
 278 struct kvm_switch_rr6 {
 279         uint64_t old_rr;
 280         uint64_t new_rr;
 281 };
 282
 283 union ia64_ipi_a{
 284         unsigned long val;
 285         struct {
 286                 unsigned long rv  : 3;
 287                 unsigned long ir  : 1;
 288                 unsigned long eid : 8;
 289                 unsigned long id  : 8;
 290                 unsigned long ib_base : 44;
 291         };
 292 };
 293
 294 union ia64_ipi_d {
 295         unsigned long val;
 296         struct {
 297                 unsigned long vector : 8;
 298                 unsigned long dm  : 3;
 299                 unsigned long ig  : 53;
 300         };
 301 };
 302
 303 /*ipi check exit data*/
 304 struct kvm_ipi_data{
 305         union ia64_ipi_a addr;
 306         union ia64_ipi_d data;
 307 };
 308
 309 /*global purge data*/
 310 struct kvm_ptc_g {
 311         unsigned long vaddr;
 312         unsigned long rr;
 313         unsigned long ps;
 314         struct kvm_vcpu *vcpu;
 315 };
 316
 317 /*Exit control data */
 318 struct exit_ctl_data{
 319         uint32_t exit_reason;
 320         uint32_t vm_status;
 321         union {
 322                 struct kvm_mmio_req     ioreq;
 323                 struct kvm_pal_call     pal_data;
 324                 struct kvm_sal_call     sal_data;
 325                 struct kvm_switch_rr6   rr_data;
 326                 struct kvm_ipi_data     ipi_data;
 327                 struct kvm_ptc_g        ptc_g_data;
 328         } u;
 329 };
 330
 331 union pte_flags {
 332         unsigned long val;
 333         struct {
 334                 unsigned long p    :  1; /*0      */
 335                 unsigned long      :  1; /* 1     */
 336                 unsigned long ma   :  3; /* 2-4   */
 337                 unsigned long a    :  1; /* 5     */
 338                 unsigned long d    :  1; /* 6     */
 339                 unsigned long pl   :  2; /* 7-8   */
 340                 unsigned long ar   :  3; /* 9-11  */
 341                 unsigned long ppn  : 38; /* 12-49 */
 342                 unsigned long      :  2; /* 50-51 */
 343                 unsigned long ed   :  1; /* 52    */
 344         };
 345 };
 346
 347 union ia64_pta {
 348         unsigned long val;
 349         struct {
 350                 unsigned long ve : 1;
 351                 unsigned long reserved0 : 1;
 352                 unsigned long size : 6;
 353                 unsigned long vf : 1;
 354                 unsigned long reserved1 : 6;
 355                 unsigned long base : 49;
 356         };
 357 };
 358
 359 struct thash_cb {
 360         /* THASH base information */
 361         struct thash_data       *hash; /* hash table pointer */
 362         union ia64_pta          pta;
 363         int           num;
 364 };
 365
 366 struct kvm_vcpu_stat {
 367         u32 halt_wakeup;
 368 };
 369
 370 struct kvm_vcpu_arch {
 371         int launched;
 372         int last_exit;
 373         int last_run_cpu;
 374         int vmm_tr_slot;
 375         int vm_tr_slot;
 376         int sn_rtc_tr_slot;
 377
 378 #define KVM_MP_STATE_RUNNABLE          0
 379 #define KVM_MP_STATE_UNINITIALIZED     1
 380 #define KVM_MP_STATE_INIT_RECEIVED     2
 381 #define KVM_MP_STATE_HALTED            3
 382         int mp_state;
 383
 384 #define MAX_PTC_G_NUM                   3
 385         int ptc_g_count;
 386         struct kvm_ptc_g ptc_g_data[MAX_PTC_G_NUM];
 387
 388         /*halt timer to wake up sleepy vcpus*/
 389         struct hrtimer hlt_timer;
 390         long ht_active;
 391
 392         struct kvm_lapic *apic;    /* kernel irqchip context */
 393         struct vpd *vpd;
 394
 395         /* Exit data for vmm_transition*/
 396         struct exit_ctl_data exit_data;
 397
 398         cpumask_t cache_coherent_map;
 399
 400         unsigned long vmm_rr;
 401         unsigned long host_rr6;
 402         unsigned long psbits[8];
 403         unsigned long cr_iipa;
 404         unsigned long cr_isr;
 405         unsigned long vsa_base;
 406         unsigned long dirty_log_lock_pa;
 407         unsigned long __gp;
 408         /* TR and TC.  */
 409         struct thash_data itrs[NITRS];
 410         struct thash_data dtrs[NDTRS];
 411         /* Bit is set if there is a tr/tc for the region.  */
 412         unsigned char itr_regions;
 413         unsigned char dtr_regions;
 414         unsigned char tc_regions;
 415         /* purge all */
 416         unsigned long ptce_base;
 417         unsigned long ptce_count[2];
 418         unsigned long ptce_stride[2];
 419         /* itc/itm */
 420         unsigned long last_itc;
 421         long itc_offset;
 422         unsigned long itc_check;
 423         unsigned long timer_check;
 424         unsigned int timer_pending;
 425         unsigned int timer_fired;
 426
 427         unsigned long vrr[8];
 428         unsigned long ibr[8];
 429         unsigned long dbr[8];
 430         unsigned long insvc[4];         /* Interrupt in service.  */
 431         unsigned long xtp;
 432
 433         unsigned long metaphysical_rr0; /* from kvm_arch (so is pinned) */
 434         unsigned long metaphysical_rr4; /* from kvm_arch (so is pinned) */
 435         unsigned long metaphysical_saved_rr0; /* from kvm_arch          */
 436         unsigned long metaphysical_saved_rr4; /* from kvm_arch          */
 437         unsigned long fp_psr;       /*used for lazy float register */
 438         unsigned long saved_gp;
 439         /*for phycial  emulation */
 440         int mode_flags;
 441         struct thash_cb vtlb;
 442         struct thash_cb vhpt;
 443         char irq_check;
 444         char irq_new_pending;
 445
 446         unsigned long opcode;
 447         unsigned long cause;
 448         char log_buf[VMM_LOG_LEN];
 449         union context host;
 450         union context guest;
 451
 452         char mmio_data[8];
 453 };
 454
 455 struct kvm_vm_stat {
 456         u64 remote_tlb_flush;
 457 };
 458
 459 struct kvm_sal_data {
 460         unsigned long boot_ip;
 461         unsigned long boot_gp;
 462 };
 463
 464 struct kvm_arch_memory_slot {
 465 };
 466
 467 struct kvm_arch {
 468         spinlock_t dirty_log_lock;
 469
 470         unsigned long   vm_base;
 471         unsigned long   metaphysical_rr0;
 472         unsigned long   metaphysical_rr4;
 473         unsigned long   vmm_init_rr;
 474
 475         int             is_sn2;
 476
 477         struct kvm_ioapic *vioapic;
 478         struct kvm_vm_stat stat;
 479         struct kvm_sal_data rdv_sal_data;
 480
 481         struct list_head assigned_dev_head;
 482         struct iommu_domain *iommu_domain;
 483         int iommu_flags;
 484
 485         unsigned long irq_sources_bitmap;
 486         unsigned long irq_states[KVM_IOAPIC_NUM_PINS];
 487 };
 488
 489 union cpuid3_t {
 490         u64 value;
 491         struct {
 492                 u64 number : 8;
 493                 u64 revision : 8;
 494                 u64 model : 8;
 495                 u64 family : 8;
 496                 u64 archrev : 8;
 497                 u64 rv : 24;
 498         };
 499 };
 500
 501 struct kvm_pt_regs {
 502         /* The following registers are saved by SAVE_MIN: */
 503         unsigned long b6;  /* scratch */
 504         unsigned long b7;  /* scratch */
 505
 506         unsigned long ar_csd; /* used by cmp8xchg16 (scratch) */
 507         unsigned long ar_ssd; /* reserved for future use (scratch) */
 508
 509         unsigned long r8;  /* scratch (return value register 0) */
 510         unsigned long r9;  /* scratch (return value register 1) */
 511         unsigned long r10; /* scratch (return value register 2) */
 512         unsigned long r11; /* scratch (return value register 3) */
 513
 514         unsigned long cr_ipsr; /* interrupted task's psr */
 515         unsigned long cr_iip;  /* interrupted task's instruction pointer */
 516         unsigned long cr_ifs;  /* interrupted task's function state */
 517
 518         unsigned long ar_unat; /* interrupted task's NaT register (preserved) */
 519         unsigned long ar_pfs;  /* prev function state  */
 520         unsigned long ar_rsc;  /* RSE configuration */
 521         /* The following two are valid only if cr_ipsr.cpl > 0: */
 522         unsigned long ar_rnat;  /* RSE NaT */
 523         unsigned long ar_bspstore; /* RSE bspstore */
 524
 525         unsigned long pr;  /* 64 predicate registers (1 bit each) */
 526         unsigned long b0;  /* return pointer (bp) */
 527         unsigned long loadrs;  /* size of dirty partition << 16 */
 528
 529         unsigned long r1;  /* the gp pointer */
 530         unsigned long r12; /* interrupted task's memory stack pointer */
 531         unsigned long r13; /* thread pointer */
 532
 533         unsigned long ar_fpsr;  /* floating point status (preserved) */
 534         unsigned long r15;  /* scratch */
 535
 536         /* The remaining registers are NOT saved for system calls.  */
 537         unsigned long r14;  /* scratch */
 538         unsigned long r2;  /* scratch */
 539         unsigned long r3;  /* scratch */
 540         unsigned long r16;  /* scratch */
 541         unsigned long r17;  /* scratch */
 542         unsigned long r18;  /* scratch */
 543         unsigned long r19;  /* scratch */
 544         unsigned long r20;  /* scratch */
 545         unsigned long r21;  /* scratch */
 546         unsigned long r22;  /* scratch */
 547         unsigned long r23;  /* scratch */
 548         unsigned long r24;  /* scratch */
 549         unsigned long r25;  /* scratch */
 550         unsigned long r26;  /* scratch */
 551         unsigned long r27;  /* scratch */
 552         unsigned long r28;  /* scratch */
 553         unsigned long r29;  /* scratch */
 554         unsigned long r30;  /* scratch */
 555         unsigned long r31;  /* scratch */
 556         unsigned long ar_ccv;  /* compare/exchange value (scratch) */
 557
 558         /*
 559          * Floating point registers that the kernel considers scratch:
 560          */
 561         struct ia64_fpreg f6;  /* scratch */
 562         struct ia64_fpreg f7;  /* scratch */
 563         struct ia64_fpreg f8;  /* scratch */
 564         struct ia64_fpreg f9;  /* scratch */
 565         struct ia64_fpreg f10;  /* scratch */
 566         struct ia64_fpreg f11;  /* scratch */
 567
 568         unsigned long r4;  /* preserved */
 569         unsigned long r5;  /* preserved */
 570         unsigned long r6;  /* preserved */
 571         unsigned long r7;  /* preserved */
 572         unsigned long eml_unat;    /* used for emulating instruction */
 573         unsigned long pad0;     /* alignment pad */
 574 };
 575
 576 static inline struct kvm_pt_regs *vcpu_regs(struct kvm_vcpu *v)
 577 {
 578         return (struct kvm_pt_regs *) ((unsigned long) v + KVM_STK_OFFSET) - 1;
 579 }
 580
 581 typedef int kvm_vmm_entry(void);
 582 typedef void kvm_tramp_entry(union context *host, union context *guest);
 583
 584 struct kvm_vmm_info{
 585         struct module   *module;
 586         kvm_vmm_entry   *vmm_entry;
 587         kvm_tramp_entry *tramp_entry;
 588         unsigned long   vmm_ivt;
 589         unsigned long   patch_mov_ar;
 590         unsigned long   patch_mov_ar_sn2;
 591 };
 592
 593 int kvm_highest_pending_irq(struct kvm_vcpu *vcpu);
 594 int kvm_emulate_halt(struct kvm_vcpu *vcpu);
 595 int kvm_pal_emul(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run);
 596 void kvm_sal_emul(struct kvm_vcpu *vcpu);
 597
 598 #define __KVM_HAVE_ARCH_VM_ALLOC 1
 599 struct kvm *kvm_arch_alloc_vm(void);
 600 void kvm_arch_free_vm(struct kvm *kvm);
 601
 602 #endif /* __ASSEMBLY__*/
 603
 604 #endif