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 struct kvm;
 238 struct kvm_vcpu;
 239
 240 struct kvm_mmio_req {
 241         uint64_t addr;          /*  physical address            */
 242         uint64_t size;          /*  size in bytes               */
 243         uint64_t data;          /*  data (or paddr of data)     */
 244         uint8_t state:4;
 245         uint8_t dir:1;          /*  1=read, 0=write             */
 246 };
 247
 248 /*Pal data struct */
 249 struct kvm_pal_call{
 250         /*In area*/
 251         uint64_t gr28;
 252         uint64_t gr29;
 253         uint64_t gr30;
 254         uint64_t gr31;
 255         /*Out area*/
 256         struct ia64_pal_retval ret;
 257 };
 258
 259 /* Sal data structure */
 260 struct kvm_sal_call{
 261         /*In area*/
 262         uint64_t in0;
 263         uint64_t in1;
 264         uint64_t in2;
 265         uint64_t in3;
 266         uint64_t in4;
 267         uint64_t in5;
 268         uint64_t in6;
 269         uint64_t in7;
 270         struct sal_ret_values ret;
 271 };
 272
 273 /*Guest change rr6*/
 274 struct kvm_switch_rr6 {
 275         uint64_t old_rr;
 276         uint64_t new_rr;
 277 };
 278
 279 union ia64_ipi_a{
 280         unsigned long val;
 281         struct {
 282                 unsigned long rv  : 3;
 283                 unsigned long ir  : 1;
 284                 unsigned long eid : 8;
 285                 unsigned long id  : 8;
 286                 unsigned long ib_base : 44;
 287         };
 288 };
 289
 290 union ia64_ipi_d {
 291         unsigned long val;
 292         struct {
 293                 unsigned long vector : 8;
 294                 unsigned long dm  : 3;
 295                 unsigned long ig  : 53;
 296         };
 297 };
 298
 299 /*ipi check exit data*/
 300 struct kvm_ipi_data{
 301         union ia64_ipi_a addr;
 302         union ia64_ipi_d data;
 303 };
 304
 305 /*global purge data*/
 306 struct kvm_ptc_g {
 307         unsigned long vaddr;
 308         unsigned long rr;
 309         unsigned long ps;
 310         struct kvm_vcpu *vcpu;
 311 };
 312
 313 /*Exit control data */
 314 struct exit_ctl_data{
 315         uint32_t exit_reason;
 316         uint32_t vm_status;
 317         union {
 318                 struct kvm_mmio_req     ioreq;
 319                 struct kvm_pal_call     pal_data;
 320                 struct kvm_sal_call     sal_data;
 321                 struct kvm_switch_rr6   rr_data;
 322                 struct kvm_ipi_data     ipi_data;
 323                 struct kvm_ptc_g        ptc_g_data;
 324         } u;
 325 };
 326
 327 union pte_flags {
 328         unsigned long val;
 329         struct {
 330                 unsigned long p    :  1; /*0      */
 331                 unsigned long      :  1; /* 1     */
 332                 unsigned long ma   :  3; /* 2-4   */
 333                 unsigned long a    :  1; /* 5     */
 334                 unsigned long d    :  1; /* 6     */
 335                 unsigned long pl   :  2; /* 7-8   */
 336                 unsigned long ar   :  3; /* 9-11  */
 337                 unsigned long ppn  : 38; /* 12-49 */
 338                 unsigned long      :  2; /* 50-51 */
 339                 unsigned long ed   :  1; /* 52    */
 340         };
 341 };
 342
 343 union ia64_pta {
 344         unsigned long val;
 345         struct {
 346                 unsigned long ve : 1;
 347                 unsigned long reserved0 : 1;
 348                 unsigned long size : 6;
 349                 unsigned long vf : 1;
 350                 unsigned long reserved1 : 6;
 351                 unsigned long base : 49;
 352         };
 353 };
 354
 355 struct thash_cb {
 356         /* THASH base information */
 357         struct thash_data       *hash; /* hash table pointer */
 358         union ia64_pta          pta;
 359         int           num;
 360 };
 361
 362 struct kvm_vcpu_stat {
 363         u32 halt_wakeup;
 364 };
 365
 366 struct kvm_vcpu_arch {
 367         int launched;
 368         int last_exit;
 369         int last_run_cpu;
 370         int vmm_tr_slot;
 371         int vm_tr_slot;
 372         int sn_rtc_tr_slot;
 373
 374 #define KVM_MP_STATE_RUNNABLE          0
 375 #define KVM_MP_STATE_UNINITIALIZED     1
 376 #define KVM_MP_STATE_INIT_RECEIVED     2
 377 #define KVM_MP_STATE_HALTED            3
 378         int mp_state;
 379
 380 #define MAX_PTC_G_NUM                   3
 381         int ptc_g_count;
 382         struct kvm_ptc_g ptc_g_data[MAX_PTC_G_NUM];
 383
 384         /*halt timer to wake up sleepy vcpus*/
 385         struct hrtimer hlt_timer;
 386         long ht_active;
 387
 388         struct kvm_lapic *apic;    /* kernel irqchip context */
 389         struct vpd *vpd;
 390
 391         /* Exit data for vmm_transition*/
 392         struct exit_ctl_data exit_data;
 393
 394         cpumask_t cache_coherent_map;
 395
 396         unsigned long vmm_rr;
 397         unsigned long host_rr6;
 398         unsigned long psbits[8];
 399         unsigned long cr_iipa;
 400         unsigned long cr_isr;
 401         unsigned long vsa_base;
 402         unsigned long dirty_log_lock_pa;
 403         unsigned long __gp;
 404         /* TR and TC.  */
 405         struct thash_data itrs[NITRS];
 406         struct thash_data dtrs[NDTRS];
 407         /* Bit is set if there is a tr/tc for the region.  */
 408         unsigned char itr_regions;
 409         unsigned char dtr_regions;
 410         unsigned char tc_regions;
 411         /* purge all */
 412         unsigned long ptce_base;
 413         unsigned long ptce_count[2];
 414         unsigned long ptce_stride[2];
 415         /* itc/itm */
 416         unsigned long last_itc;
 417         long itc_offset;
 418         unsigned long itc_check;
 419         unsigned long timer_check;
 420         unsigned int timer_pending;
 421         unsigned int timer_fired;
 422
 423         unsigned long vrr[8];
 424         unsigned long ibr[8];
 425         unsigned long dbr[8];
 426         unsigned long insvc[4];         /* Interrupt in service.  */
 427         unsigned long xtp;
 428
 429         unsigned long metaphysical_rr0; /* from kvm_arch (so is pinned) */
 430         unsigned long metaphysical_rr4; /* from kvm_arch (so is pinned) */
 431         unsigned long metaphysical_saved_rr0; /* from kvm_arch          */
 432         unsigned long metaphysical_saved_rr4; /* from kvm_arch          */
 433         unsigned long fp_psr;       /*used for lazy float register */
 434         unsigned long saved_gp;
 435         /*for phycial  emulation */
 436         int mode_flags;
 437         struct thash_cb vtlb;
 438         struct thash_cb vhpt;
 439         char irq_check;
 440         char irq_new_pending;
 441
 442         unsigned long opcode;
 443         unsigned long cause;
 444         char log_buf[VMM_LOG_LEN];
 445         union context host;
 446         union context guest;
 447
 448         char mmio_data[8];
 449 };
 450
 451 struct kvm_vm_stat {
 452         u64 remote_tlb_flush;
 453 };
 454
 455 struct kvm_sal_data {
 456         unsigned long boot_ip;
 457         unsigned long boot_gp;
 458 };
 459
 460 struct kvm_arch_memory_slot {
 461 };
 462
 463 struct kvm_arch {
 464         spinlock_t dirty_log_lock;
 465
 466         unsigned long   vm_base;
 467         unsigned long   metaphysical_rr0;
 468         unsigned long   metaphysical_rr4;
 469         unsigned long   vmm_init_rr;
 470
 471         int             is_sn2;
 472
 473         struct kvm_ioapic *vioapic;
 474         struct kvm_vm_stat stat;
 475         struct kvm_sal_data rdv_sal_data;
 476
 477         struct list_head assigned_dev_head;
 478         struct iommu_domain *iommu_domain;
 479         bool iommu_noncoherent;
 480
 481         unsigned long irq_sources_bitmap;
 482         unsigned long irq_states[KVM_IOAPIC_NUM_PINS];
 483 };
 484
 485 union cpuid3_t {
 486         u64 value;
 487         struct {
 488                 u64 number : 8;
 489                 u64 revision : 8;
 490                 u64 model : 8;
 491                 u64 family : 8;
 492                 u64 archrev : 8;
 493                 u64 rv : 24;
 494         };
 495 };
 496
 497 struct kvm_pt_regs {
 498         /* The following registers are saved by SAVE_MIN: */
 499         unsigned long b6;  /* scratch */
 500         unsigned long b7;  /* scratch */
 501
 502         unsigned long ar_csd; /* used by cmp8xchg16 (scratch) */
 503         unsigned long ar_ssd; /* reserved for future use (scratch) */
 504
 505         unsigned long r8;  /* scratch (return value register 0) */
 506         unsigned long r9;  /* scratch (return value register 1) */
 507         unsigned long r10; /* scratch (return value register 2) */
 508         unsigned long r11; /* scratch (return value register 3) */
 509
 510         unsigned long cr_ipsr; /* interrupted task's psr */
 511         unsigned long cr_iip;  /* interrupted task's instruction pointer */
 512         unsigned long cr_ifs;  /* interrupted task's function state */
 513
 514         unsigned long ar_unat; /* interrupted task's NaT register (preserved) */
 515         unsigned long ar_pfs;  /* prev function state  */
 516         unsigned long ar_rsc;  /* RSE configuration */
 517         /* The following two are valid only if cr_ipsr.cpl > 0: */
 518         unsigned long ar_rnat;  /* RSE NaT */
 519         unsigned long ar_bspstore; /* RSE bspstore */
 520
 521         unsigned long pr;  /* 64 predicate registers (1 bit each) */
 522         unsigned long b0;  /* return pointer (bp) */
 523         unsigned long loadrs;  /* size of dirty partition << 16 */
 524
 525         unsigned long r1;  /* the gp pointer */
 526         unsigned long r12; /* interrupted task's memory stack pointer */
 527         unsigned long r13; /* thread pointer */
 528
 529         unsigned long ar_fpsr;  /* floating point status (preserved) */
 530         unsigned long r15;  /* scratch */
 531
 532         /* The remaining registers are NOT saved for system calls.  */
 533         unsigned long r14;  /* scratch */
 534         unsigned long r2;  /* scratch */
 535         unsigned long r3;  /* scratch */
 536         unsigned long r16;  /* scratch */
 537         unsigned long r17;  /* scratch */
 538         unsigned long r18;  /* scratch */
 539         unsigned long r19;  /* scratch */
 540         unsigned long r20;  /* scratch */
 541         unsigned long r21;  /* scratch */
 542         unsigned long r22;  /* scratch */
 543         unsigned long r23;  /* scratch */
 544         unsigned long r24;  /* scratch */
 545         unsigned long r25;  /* scratch */
 546         unsigned long r26;  /* scratch */
 547         unsigned long r27;  /* scratch */
 548         unsigned long r28;  /* scratch */
 549         unsigned long r29;  /* scratch */
 550         unsigned long r30;  /* scratch */
 551         unsigned long r31;  /* scratch */
 552         unsigned long ar_ccv;  /* compare/exchange value (scratch) */
 553
 554         /*
 555          * Floating point registers that the kernel considers scratch:
 556          */
 557         struct ia64_fpreg f6;  /* scratch */
 558         struct ia64_fpreg f7;  /* scratch */
 559         struct ia64_fpreg f8;  /* scratch */
 560         struct ia64_fpreg f9;  /* scratch */
 561         struct ia64_fpreg f10;  /* scratch */
 562         struct ia64_fpreg f11;  /* scratch */
 563
 564         unsigned long r4;  /* preserved */
 565         unsigned long r5;  /* preserved */
 566         unsigned long r6;  /* preserved */
 567         unsigned long r7;  /* preserved */
 568         unsigned long eml_unat;    /* used for emulating instruction */
 569         unsigned long pad0;     /* alignment pad */
 570 };
 571
 572 static inline struct kvm_pt_regs *vcpu_regs(struct kvm_vcpu *v)
 573 {
 574         return (struct kvm_pt_regs *) ((unsigned long) v + KVM_STK_OFFSET) - 1;
 575 }
 576
 577 typedef int kvm_vmm_entry(void);
 578 typedef void kvm_tramp_entry(union context *host, union context *guest);
 579
 580 struct kvm_vmm_info{
 581         struct module   *module;
 582         kvm_vmm_entry   *vmm_entry;
 583         kvm_tramp_entry *tramp_entry;
 584         unsigned long   vmm_ivt;
 585         unsigned long   patch_mov_ar;
 586         unsigned long   patch_mov_ar_sn2;
 587 };
 588
 589 int kvm_highest_pending_irq(struct kvm_vcpu *vcpu);
 590 int kvm_emulate_halt(struct kvm_vcpu *vcpu);
 591 int kvm_pal_emul(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run);
 592 void kvm_sal_emul(struct kvm_vcpu *vcpu);
 593
 594 #define __KVM_HAVE_ARCH_VM_ALLOC 1
 595 struct kvm *kvm_arch_alloc_vm(void);
 596 void kvm_arch_free_vm(struct kvm *kvm);
 597
 598 #endif /* __ASSEMBLY__*/
 599
 600 #endif