kvm/kernel/arch/ia64/include/asm/kvm_host.h

   1 #ifndef KVM_UNIFDEF_H
   2 #define KVM_UNIFDEF_H
   3
   4 #ifdef __i386__
   5 #ifndef CONFIG_X86_32
   6 #define CONFIG_X86_32 1
   7 #endif
   8 #endif
   9
  10 #ifdef __x86_64__
  11 #ifndef CONFIG_X86_64
  12 #define CONFIG_X86_64 1
  13 #endif
  14 #endif
  15
  16 #if defined(__i386__) || defined (__x86_64__)
  17 #ifndef CONFIG_X86
  18 #define CONFIG_X86 1
  19 #endif
  20 #endif
  21
  22 #ifdef __ia64__
  23 #ifndef CONFIG_IA64
  24 #define CONFIG_IA64 1
  25 #endif
  26 #endif
  27
  28 #ifdef __PPC__
  29 #ifndef CONFIG_PPC
  30 #define CONFIG_PPC 1
  31 #endif
  32 #endif
  33
  34 #ifdef __s390__
  35 #ifndef CONFIG_S390
  36 #define CONFIG_S390 1
  37 #endif
  38 #endif
  39
  40 #endif
  41 /*
  42  * kvm_host.h: used for kvm module, and hold ia64-specific sections.
  43  *
  44  * Copyright (C) 2007, Intel Corporation.
  45  *
  46  * Xiantao Zhang <xiantao.zhang@intel.com>
  47  *
  48  * This program is free software; you can redistribute it and/or modify it
  49  * under the terms and conditions of the GNU General Public License,
  50  * version 2, as published by the Free Software Foundation.
  51  *
  52  * This program is distributed in the hope it will be useful, but WITHOUT
  53  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  54  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  55  * more details.
  56  *
  57  * You should have received a copy of the GNU General Public License along with
  58  * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
  59  * Place - Suite 330, Boston, MA 02111-1307 USA.
  60  *
  61  */
  62
  63 #ifndef __ASM_KVM_HOST_H
  64 #define __ASM_KVM_HOST_H
  65
  66 #define KVM_MEMORY_SLOTS 32
  67 /* memory slots that does not exposed to userspace */
  68 #define KVM_PRIVATE_MEM_SLOTS 4
  69
  70 #define KVM_COALESCED_MMIO_PAGE_OFFSET 1
  71
  72 /* define exit reasons from vmm to kvm*/
  73 #define EXIT_REASON_VM_PANIC            0
  74 #define EXIT_REASON_MMIO_INSTRUCTION    1
  75 #define EXIT_REASON_PAL_CALL            2
  76 #define EXIT_REASON_SAL_CALL            3
  77 #define EXIT_REASON_SWITCH_RR6          4
  78 #define EXIT_REASON_VM_DESTROY          5
  79 #define EXIT_REASON_EXTERNAL_INTERRUPT  6
  80 #define EXIT_REASON_IPI                 7
  81 #define EXIT_REASON_PTC_G               8
  82 #define EXIT_REASON_DEBUG               20
  83
  84 /*Define vmm address space and vm data space.*/
  85 #define KVM_VMM_SIZE (__IA64_UL_CONST(16)<<20)
  86 #define KVM_VMM_SHIFT 24
  87 #define KVM_VMM_BASE 0xD000000000000000
  88 #define VMM_SIZE (__IA64_UL_CONST(8)<<20)
  89
  90 /*
  91  * Define vm_buffer, used by PAL Services, base address.
  92  * Note: vm_buffer is in the VMM-BLOCK, the size must be < 8M
  93  */
  94 #define KVM_VM_BUFFER_BASE (KVM_VMM_BASE + VMM_SIZE)
  95 #define KVM_VM_BUFFER_SIZE (__IA64_UL_CONST(8)<<20)
  96
  97 /*
  98  * kvm guest's data area looks as follow:
  99  *
 100  *            +----------------------+  ------- KVM_VM_DATA_SIZE
 101  *            |     vcpu[n]'s data   |   |     ___________________KVM_STK_OFFSET
 102  *            |                      |   |    /                   |
 103  *            |        ..........    |   |   /vcpu's struct&stack |
 104  *            |        ..........    |   |  /---------------------|---- 0
 105  *            |     vcpu[5]'s data   |   | /       vpd            |
 106  *            |     vcpu[4]'s data   |   |/-----------------------|
 107  *            |     vcpu[3]'s data   |   /         vtlb           |
 108  *            |     vcpu[2]'s data   |  /|------------------------|
 109  *            |     vcpu[1]'s data   |/  |         vhpt           |
 110  *            |     vcpu[0]'s data   |____________________________|
 111  *            +----------------------+   |
 112  *            |    memory dirty log  |   |
 113  *            +----------------------+   |
 114  *            |    vm's data struct  |   |
 115  *            +----------------------+   |
 116  *            |                      |   |
 117  *            |                      |   |
 118  *            |                      |   |
 119  *            |                      |   |
 120  *            |                      |   |
 121  *            |                      |   |
 122  *            |                      |   |
 123  *            |   vm's p2m table  |      |
 124  *            |                      |   |
 125  *            |                      |   |
 126  *            |                      |   |  |
 127  * vm's data->|                      |   |  |
 128  *            +----------------------+ ------- 0
 129  * To support large memory, needs to increase the size of p2m.
 130  * To support more vcpus, needs to ensure it has enough space to
 131  * hold vcpus' data.
 132  */
 133
 134 #define KVM_VM_DATA_SHIFT       26
 135 #define KVM_VM_DATA_SIZE        (__IA64_UL_CONST(1) << KVM_VM_DATA_SHIFT)
 136 #define KVM_VM_DATA_BASE        (KVM_VMM_BASE + KVM_VM_DATA_SIZE)
 137
 138 #define KVM_P2M_BASE            KVM_VM_DATA_BASE
 139 #define KVM_P2M_SIZE            (__IA64_UL_CONST(24) << 20)
 140
 141 #define VHPT_SHIFT              16
 142 #define VHPT_SIZE               (__IA64_UL_CONST(1) << VHPT_SHIFT)
 143 #define VHPT_NUM_ENTRIES        (__IA64_UL_CONST(1) << (VHPT_SHIFT-5))
 144
 145 #define VTLB_SHIFT              16
 146 #define VTLB_SIZE               (__IA64_UL_CONST(1) << VTLB_SHIFT)
 147 #define VTLB_NUM_ENTRIES        (1UL << (VHPT_SHIFT-5))
 148
 149 #define VPD_SHIFT               16
 150 #define VPD_SIZE                (__IA64_UL_CONST(1) << VPD_SHIFT)
 151
 152 #define VCPU_STRUCT_SHIFT       16
 153 #define VCPU_STRUCT_SIZE        (__IA64_UL_CONST(1) << VCPU_STRUCT_SHIFT)
 154
 155 /*
 156  * This must match KVM_IA64_VCPU_STACK_{SHIFT,SIZE} arch/ia64/include/asm/kvm.h
 157  */
 158 #define KVM_STK_SHIFT           16
 159 #define KVM_STK_OFFSET          (__IA64_UL_CONST(1)<< KVM_STK_SHIFT)
 160
 161 #define KVM_VM_STRUCT_SHIFT     19
 162 #define KVM_VM_STRUCT_SIZE      (__IA64_UL_CONST(1) << KVM_VM_STRUCT_SHIFT)
 163
 164 #define KVM_MEM_DIRY_LOG_SHIFT  19
 165 #define KVM_MEM_DIRTY_LOG_SIZE (__IA64_UL_CONST(1) << KVM_MEM_DIRY_LOG_SHIFT)
 166
 167 #ifndef __ASSEMBLY__
 168
 169 /*Define the max vcpus and memory for Guests.*/
 170 #define KVM_MAX_VCPUS   (KVM_VM_DATA_SIZE - KVM_P2M_SIZE - KVM_VM_STRUCT_SIZE -\
 171                         KVM_MEM_DIRTY_LOG_SIZE) / sizeof(struct kvm_vcpu_data)
 172 #define KVM_MAX_MEM_SIZE (KVM_P2M_SIZE >> 3 << PAGE_SHIFT)
 173
 174 #define VMM_LOG_LEN 256
 175
 176 #include <linux/types.h>
 177 #include <linux/mm.h>
 178 #include <linux/kvm.h>
 179 #include <linux/kvm_para.h>
 180 #include <linux/kvm_types.h>
 181
 182 #include <asm/pal.h>
 183 #include <asm/sal.h>
 184 #include <asm/page.h>
 185
 186 struct kvm_vcpu_data {
 187         char vcpu_vhpt[VHPT_SIZE];
 188         char vcpu_vtlb[VTLB_SIZE];
 189         char vcpu_vpd[VPD_SIZE];
 190         char vcpu_struct[VCPU_STRUCT_SIZE];
 191 };
 192
 193 struct kvm_vm_data {
 194         char kvm_p2m[KVM_P2M_SIZE];
 195         char kvm_vm_struct[KVM_VM_STRUCT_SIZE];
 196         char kvm_mem_dirty_log[KVM_MEM_DIRTY_LOG_SIZE];
 197         struct kvm_vcpu_data vcpu_data[KVM_MAX_VCPUS];
 198 };
 199
 200 #define VCPU_BASE(n)    (KVM_VM_DATA_BASE + \
 201                                 offsetof(struct kvm_vm_data, vcpu_data[n]))
 202 #define KVM_VM_BASE     (KVM_VM_DATA_BASE + \
 203                                 offsetof(struct kvm_vm_data, kvm_vm_struct))
 204 #define KVM_MEM_DIRTY_LOG_BASE  KVM_VM_DATA_BASE + \
 205                                 offsetof(struct kvm_vm_data, kvm_mem_dirty_log)
 206
 207 #define VHPT_BASE(n) (VCPU_BASE(n) + offsetof(struct kvm_vcpu_data, vcpu_vhpt))
 208 #define VTLB_BASE(n) (VCPU_BASE(n) + offsetof(struct kvm_vcpu_data, vcpu_vtlb))
 209 #define VPD_BASE(n)  (VCPU_BASE(n) + offsetof(struct kvm_vcpu_data, vcpu_vpd))
 210 #define VCPU_STRUCT_BASE(n)     (VCPU_BASE(n) + \
 211                                 offsetof(struct kvm_vcpu_data, vcpu_struct))
 212
 213 /*IO section definitions*/
 214 #define IOREQ_READ      1
 215 #define IOREQ_WRITE     0
 216
 217 #define STATE_IOREQ_NONE        0
 218 #define STATE_IOREQ_READY       1
 219 #define STATE_IOREQ_INPROCESS   2
 220 #define STATE_IORESP_READY      3
 221
 222 /*Guest Physical address layout.*/
 223 #define GPFN_MEM        (0UL << 60) /* Guest pfn is normal mem */
 224 #define GPFN_FRAME_BUFFER   (1UL << 60) /* VGA framebuffer */
 225 #define GPFN_LOW_MMIO       (2UL << 60) /* Low MMIO range */
 226 #define GPFN_PIB        (3UL << 60) /* PIB base */
 227 #define GPFN_IOSAPIC        (4UL << 60) /* IOSAPIC base */
 228 #define GPFN_LEGACY_IO      (5UL << 60) /* Legacy I/O base */
 229 #define GPFN_GFW        (6UL << 60) /* Guest Firmware */
 230 #define GPFN_PHYS_MMIO      (7UL << 60) /* Directed MMIO Range */
 231
 232 #define GPFN_IO_MASK        (7UL << 60) /* Guest pfn is I/O type */
 233 #define GPFN_INV_MASK       (1UL << 63) /* Guest pfn is invalid */
 234 #define INVALID_MFN       (~0UL)
 235 #define MEM_G   (1UL << 30)
 236 #define MEM_M   (1UL << 20)
 237 #define MMIO_START       (3 * MEM_G)
 238 #define MMIO_SIZE        (512 * MEM_M)
 239 #define VGA_IO_START     0xA0000UL
 240 #define VGA_IO_SIZE      0x20000
 241 #define LEGACY_IO_START  (MMIO_START + MMIO_SIZE)
 242 #define LEGACY_IO_SIZE   (64 * MEM_M)
 243 #define IO_SAPIC_START   0xfec00000UL
 244 #define IO_SAPIC_SIZE    0x100000
 245 #define PIB_START 0xfee00000UL
 246 #define PIB_SIZE 0x200000
 247 #define GFW_START        (4 * MEM_G - 16 * MEM_M)
 248 #define GFW_SIZE         (16 * MEM_M)
 249
 250 /*Deliver mode, defined for ioapic.c*/
 251 #define dest_Fixed IOSAPIC_FIXED
 252 #define dest_LowestPrio IOSAPIC_LOWEST_PRIORITY
 253
 254 #define NMI_VECTOR                      2
 255 #define ExtINT_VECTOR                   0
 256 #define NULL_VECTOR                     (-1)
 257 #define IA64_SPURIOUS_INT_VECTOR        0x0f
 258
 259 #define VCPU_LID(v) (((u64)(v)->vcpu_id) << 24)
 260
 261 /*
 262  *Delivery mode
 263  */
 264 #define SAPIC_DELIV_SHIFT      8
 265 #define SAPIC_FIXED            0x0
 266 #define SAPIC_LOWEST_PRIORITY  0x1
 267 #define SAPIC_PMI              0x2
 268 #define SAPIC_NMI              0x4
 269 #define SAPIC_INIT             0x5
 270 #define SAPIC_EXTINT           0x7
 271
 272 /*
 273  * vcpu->requests bit members for arch
 274  */
 275 #define KVM_REQ_PTC_G           32
 276 #define KVM_REQ_RESUME          33
 277
 278 #define KVM_PAGES_PER_HPAGE     1
 279
 280 struct kvm;
 281 struct kvm_vcpu;
 282
 283 struct kvm_mmio_req {
 284         uint64_t addr;          /*  physical address            */
 285         uint64_t size;          /*  size in bytes               */
 286         uint64_t data;          /*  data (or paddr of data)     */
 287         uint8_t state:4;
 288         uint8_t dir:1;          /*  1=read, 0=write             */
 289 };
 290
 291 /*Pal data struct */
 292 struct kvm_pal_call{
 293         /*In area*/
 294         uint64_t gr28;
 295         uint64_t gr29;
 296         uint64_t gr30;
 297         uint64_t gr31;
 298         /*Out area*/
 299         struct ia64_pal_retval ret;
 300 };
 301
 302 /* Sal data structure */
 303 struct kvm_sal_call{
 304         /*In area*/
 305         uint64_t in0;
 306         uint64_t in1;
 307         uint64_t in2;
 308         uint64_t in3;
 309         uint64_t in4;
 310         uint64_t in5;
 311         uint64_t in6;
 312         uint64_t in7;
 313         struct sal_ret_values ret;
 314 };
 315
 316 /*Guest change rr6*/
 317 struct kvm_switch_rr6 {
 318         uint64_t old_rr;
 319         uint64_t new_rr;
 320 };
 321
 322 union ia64_ipi_a{
 323         unsigned long val;
 324         struct {
 325                 unsigned long rv  : 3;
 326                 unsigned long ir  : 1;
 327                 unsigned long eid : 8;
 328                 unsigned long id  : 8;
 329                 unsigned long ib_base : 44;
 330         };
 331 };
 332
 333 union ia64_ipi_d {
 334         unsigned long val;
 335         struct {
 336                 unsigned long vector : 8;
 337                 unsigned long dm  : 3;
 338                 unsigned long ig  : 53;
 339         };
 340 };
 341
 342 /*ipi check exit data*/
 343 struct kvm_ipi_data{
 344         union ia64_ipi_a addr;
 345         union ia64_ipi_d data;
 346 };
 347
 348 /*global purge data*/
 349 struct kvm_ptc_g {
 350         unsigned long vaddr;
 351         unsigned long rr;
 352         unsigned long ps;
 353         struct kvm_vcpu *vcpu;
 354 };
 355
 356 /*Exit control data */
 357 struct exit_ctl_data{
 358         uint32_t exit_reason;
 359         uint32_t vm_status;
 360         union {
 361                 struct kvm_mmio_req     ioreq;
 362                 struct kvm_pal_call     pal_data;
 363                 struct kvm_sal_call     sal_data;
 364                 struct kvm_switch_rr6   rr_data;
 365                 struct kvm_ipi_data     ipi_data;
 366                 struct kvm_ptc_g        ptc_g_data;
 367         } u;
 368 };
 369
 370 union pte_flags {
 371         unsigned long val;
 372         struct {
 373                 unsigned long p    :  1; /*0      */
 374                 unsigned long      :  1; /* 1     */
 375                 unsigned long ma   :  3; /* 2-4   */
 376                 unsigned long a    :  1; /* 5     */
 377                 unsigned long d    :  1; /* 6     */
 378                 unsigned long pl   :  2; /* 7-8   */
 379                 unsigned long ar   :  3; /* 9-11  */
 380                 unsigned long ppn  : 38; /* 12-49 */
 381                 unsigned long      :  2; /* 50-51 */
 382                 unsigned long ed   :  1; /* 52    */
 383         };
 384 };
 385
 386 union ia64_pta {
 387         unsigned long val;
 388         struct {
 389                 unsigned long ve : 1;
 390                 unsigned long reserved0 : 1;
 391                 unsigned long size : 6;
 392                 unsigned long vf : 1;
 393                 unsigned long reserved1 : 6;
 394                 unsigned long base : 49;
 395         };
 396 };
 397
 398 struct thash_cb {
 399         /* THASH base information */
 400         struct thash_data       *hash; /* hash table pointer */
 401         union ia64_pta          pta;
 402         int           num;
 403 };
 404
 405 struct kvm_vcpu_stat {
 406 };
 407
 408 struct kvm_vcpu_arch {
 409         int launched;
 410         int last_exit;
 411         int last_run_cpu;
 412         int vmm_tr_slot;
 413         int vm_tr_slot;
 414         int sn_rtc_tr_slot;
 415
 416 #define KVM_MP_STATE_RUNNABLE          0
 417 #define KVM_MP_STATE_UNINITIALIZED     1
 418 #define KVM_MP_STATE_INIT_RECEIVED     2
 419 #define KVM_MP_STATE_HALTED            3
 420         int mp_state;
 421
 422 #define MAX_PTC_G_NUM                   3
 423         int ptc_g_count;
 424         struct kvm_ptc_g ptc_g_data[MAX_PTC_G_NUM];
 425
 426         /*halt timer to wake up sleepy vcpus*/
 427         struct hrtimer hlt_timer;
 428         long ht_active;
 429
 430         struct kvm_lapic *apic;    /* kernel irqchip context */
 431         struct vpd *vpd;
 432
 433         /* Exit data for vmm_transition*/
 434         struct exit_ctl_data exit_data;
 435
 436         cpumask_t cache_coherent_map;
 437
 438         unsigned long vmm_rr;
 439         unsigned long host_rr6;
 440         unsigned long psbits[8];
 441         unsigned long cr_iipa;
 442         unsigned long cr_isr;
 443         unsigned long vsa_base;
 444         unsigned long dirty_log_lock_pa;
 445         unsigned long __gp;
 446         /* TR and TC.  */
 447         struct thash_data itrs[NITRS];
 448         struct thash_data dtrs[NDTRS];
 449         /* Bit is set if there is a tr/tc for the region.  */
 450         unsigned char itr_regions;
 451         unsigned char dtr_regions;
 452         unsigned char tc_regions;
 453         /* purge all */
 454         unsigned long ptce_base;
 455         unsigned long ptce_count[2];
 456         unsigned long ptce_stride[2];
 457         /* itc/itm */
 458         unsigned long last_itc;
 459         long itc_offset;
 460         unsigned long itc_check;
 461         unsigned long timer_check;
 462         unsigned int timer_pending;
 463         unsigned int timer_fired;
 464
 465         unsigned long vrr[8];
 466         unsigned long ibr[8];
 467         unsigned long dbr[8];
 468         unsigned long insvc[4];         /* Interrupt in service.  */
 469         unsigned long xtp;
 470
 471         unsigned long metaphysical_rr0; /* from kvm_arch (so is pinned) */
 472         unsigned long metaphysical_rr4; /* from kvm_arch (so is pinned) */
 473         unsigned long metaphysical_saved_rr0; /* from kvm_arch          */
 474         unsigned long metaphysical_saved_rr4; /* from kvm_arch          */
 475         unsigned long fp_psr;       /*used for lazy float register */
 476         unsigned long saved_gp;
 477         /*for phycial  emulation */
 478         int mode_flags;
 479         struct thash_cb vtlb;
 480         struct thash_cb vhpt;
 481         char irq_check;
 482         char irq_new_pending;
 483
 484         unsigned long opcode;
 485         unsigned long cause;
 486         char log_buf[VMM_LOG_LEN];
 487         union context host;
 488         union context guest;
 489 };
 490
 491 struct kvm_vm_stat {
 492         u64 remote_tlb_flush;
 493 };
 494
 495 struct kvm_sal_data {
 496         unsigned long boot_ip;
 497         unsigned long boot_gp;
 498 };
 499
 500 struct kvm_arch {
 501         spinlock_t dirty_log_lock;
 502
 503         unsigned long   vm_base;
 504         unsigned long   metaphysical_rr0;
 505         unsigned long   metaphysical_rr4;
 506         unsigned long   vmm_init_rr;
 507
 508         int             online_vcpus;
 509         int             is_sn2;
 510
 511         struct kvm_ioapic *vioapic;
 512         struct kvm_vm_stat stat;
 513         struct kvm_sal_data rdv_sal_data;
 514
 515         struct list_head assigned_dev_head;
 516         struct iommu_domain *iommu_domain;
 517         struct hlist_head irq_ack_notifier_list;
 518
 519         unsigned long irq_sources_bitmap;
 520         unsigned long irq_states[KVM_IOAPIC_NUM_PINS];
 521 };
 522
 523 union cpuid3_t {
 524         u64 value;
 525         struct {
 526                 u64 number : 8;
 527                 u64 revision : 8;
 528                 u64 model : 8;
 529                 u64 family : 8;
 530                 u64 archrev : 8;
 531                 u64 rv : 24;
 532         };
 533 };
 534
 535 struct kvm_pt_regs {
 536         /* The following registers are saved by SAVE_MIN: */
 537         unsigned long b6;  /* scratch */
 538         unsigned long b7;  /* scratch */
 539
 540         unsigned long ar_csd; /* used by cmp8xchg16 (scratch) */
 541         unsigned long ar_ssd; /* reserved for future use (scratch) */
 542
 543         unsigned long r8;  /* scratch (return value register 0) */
 544         unsigned long r9;  /* scratch (return value register 1) */
 545         unsigned long r10; /* scratch (return value register 2) */
 546         unsigned long r11; /* scratch (return value register 3) */
 547
 548         unsigned long cr_ipsr; /* interrupted task's psr */
 549         unsigned long cr_iip;  /* interrupted task's instruction pointer */
 550         unsigned long cr_ifs;  /* interrupted task's function state */
 551
 552         unsigned long ar_unat; /* interrupted task's NaT register (preserved) */
 553         unsigned long ar_pfs;  /* prev function state  */
 554         unsigned long ar_rsc;  /* RSE configuration */
 555         /* The following two are valid only if cr_ipsr.cpl > 0: */
 556         unsigned long ar_rnat;  /* RSE NaT */
 557         unsigned long ar_bspstore; /* RSE bspstore */
 558
 559         unsigned long pr;  /* 64 predicate registers (1 bit each) */
 560         unsigned long b0;  /* return pointer (bp) */
 561         unsigned long loadrs;  /* size of dirty partition << 16 */
 562
 563         unsigned long r1;  /* the gp pointer */
 564         unsigned long r12; /* interrupted task's memory stack pointer */
 565         unsigned long r13; /* thread pointer */
 566
 567         unsigned long ar_fpsr;  /* floating point status (preserved) */
 568         unsigned long r15;  /* scratch */
 569
 570         /* The remaining registers are NOT saved for system calls.  */
 571         unsigned long r14;  /* scratch */
 572         unsigned long r2;  /* scratch */
 573         unsigned long r3;  /* scratch */
 574         unsigned long r16;  /* scratch */
 575         unsigned long r17;  /* scratch */
 576         unsigned long r18;  /* scratch */
 577         unsigned long r19;  /* scratch */
 578         unsigned long r20;  /* scratch */
 579         unsigned long r21;  /* scratch */
 580         unsigned long r22;  /* scratch */
 581         unsigned long r23;  /* scratch */
 582         unsigned long r24;  /* scratch */
 583         unsigned long r25;  /* scratch */
 584         unsigned long r26;  /* scratch */
 585         unsigned long r27;  /* scratch */
 586         unsigned long r28;  /* scratch */
 587         unsigned long r29;  /* scratch */
 588         unsigned long r30;  /* scratch */
 589         unsigned long r31;  /* scratch */
 590         unsigned long ar_ccv;  /* compare/exchange value (scratch) */
 591
 592         /*
 593          * Floating point registers that the kernel considers scratch:
 594          */
 595         struct ia64_fpreg f6;  /* scratch */
 596         struct ia64_fpreg f7;  /* scratch */
 597         struct ia64_fpreg f8;  /* scratch */
 598         struct ia64_fpreg f9;  /* scratch */
 599         struct ia64_fpreg f10;  /* scratch */
 600         struct ia64_fpreg f11;  /* scratch */
 601
 602         unsigned long r4;  /* preserved */
 603         unsigned long r5;  /* preserved */
 604         unsigned long r6;  /* preserved */
 605         unsigned long r7;  /* preserved */
 606         unsigned long eml_unat;    /* used for emulating instruction */
 607         unsigned long pad0;     /* alignment pad */
 608 };
 609
 610 static inline struct kvm_pt_regs *vcpu_regs(struct kvm_vcpu *v)
 611 {
 612         return (struct kvm_pt_regs *) ((unsigned long) v + KVM_STK_OFFSET) - 1;
 613 }
 614
 615 typedef int kvm_vmm_entry(void);
 616 typedef void kvm_tramp_entry(union context *host, union context *guest);
 617
 618 struct kvm_vmm_info{
 619         struct module   *module;
 620         kvm_vmm_entry   *vmm_entry;
 621         kvm_tramp_entry *tramp_entry;
 622         unsigned long   vmm_ivt;
 623         unsigned long   patch_mov_ar;
 624         unsigned long   patch_mov_ar_sn2;
 625 };
 626
 627 int kvm_highest_pending_irq(struct kvm_vcpu *vcpu);
 628 int kvm_emulate_halt(struct kvm_vcpu *vcpu);
 629 int kvm_pal_emul(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run);
 630 void kvm_sal_emul(struct kvm_vcpu *vcpu);
 631
 632 #endif /* __ASSEMBLY__*/
 633
 634 #endif