sys/arch/xen/include/xen3-public/arch-ia64.h

   1 /* $NetBSD: arch-ia64.h,v 1.6 2008/05/04 19:56:28 cegger Exp $ */
   2 /******************************************************************************
   3  * arch-ia64/hypervisor-if.h
   4  *
   5  * Guest OS interface to IA64 Xen.
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a copy
   8  * of this software and associated documentation files (the "Software"), to
   9  * deal in the Software without restriction, including without limitation the
  10  * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
  11  * sell copies of the Software, and to permit persons to whom the Software is
  12  * furnished to do so, subject to the following conditions:
  13  *
  14  * The above copyright notice and this permission notice shall be included in
  15  * all copies or substantial portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  20  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  22  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  23  * DEALINGS IN THE SOFTWARE.
  24  *
  25  */
  26
  27 #include "xen.h"
  28
  29 #ifndef __HYPERVISOR_IF_IA64_H__
  30 #define __HYPERVISOR_IF_IA64_H__
  31
  32 #if !defined(__GNUC__) || defined(__STRICT_ANSI__)
  33 #error "Anonymous structs/unions are a GNU extension."
  34 #endif
  35
  36 /* Structural guest handles introduced in 0x00030201. */
  37 #if __XEN_INTERFACE_VERSION__ >= 0x00030201
  38 #define ___DEFINE_XEN_GUEST_HANDLE(name, type) \
  39     typedef struct { type *p; } __guest_handle_ ## name
  40 #else
  41 #define ___DEFINE_XEN_GUEST_HANDLE(name, type) \
  42     typedef type * __guest_handle_ ## name
  43 #endif
  44
  45 #define __DEFINE_XEN_GUEST_HANDLE(name, type) \
  46     ___DEFINE_XEN_GUEST_HANDLE(name, type);   \
  47     ___DEFINE_XEN_GUEST_HANDLE(const_##name, const type)
  48
  49 #define DEFINE_XEN_GUEST_HANDLE(name)   __DEFINE_XEN_GUEST_HANDLE(name, name)
  50 #define XEN_GUEST_HANDLE(name)          __guest_handle_ ## name
  51 #define XEN_GUEST_HANDLE_64(name)       XEN_GUEST_HANDLE(name)
  52 #define uint64_aligned_t                uint64_t
  53 #define set_xen_guest_handle(hnd, val)  do { (hnd).p = val; } while (0)
  54 #ifdef __XEN_TOOLS__
  55 #define get_xen_guest_handle(val, hnd)  do { val = (hnd).p; } while (0)
  56 #endif
  57
  58 #ifndef __ASSEMBLY__
  59 typedef unsigned long xen_pfn_t;
  60 #define PRI_xen_pfn "lx"
  61 #endif
  62
  63 /* Arch specific VIRQs definition */
  64 #define VIRQ_ITC        VIRQ_ARCH_0 /* V. Virtual itc timer */
  65 #define VIRQ_MCA_CMC    VIRQ_ARCH_1 /* MCA cmc interrupt */
  66 #define VIRQ_MCA_CPE    VIRQ_ARCH_2 /* MCA cpe interrupt */
  67
  68 /* Maximum number of virtual CPUs in multi-processor guests. */
  69 /* WARNING: before changing this, check that shared_info fits on a page */
  70 #define MAX_VIRT_CPUS 64
  71
  72 /* IO ports location for PV.  */
  73 #define IO_PORTS_PADDR          0x00000ffffc000000UL
  74 #define IO_PORTS_SIZE           0x0000000004000000UL
  75
  76 #ifndef __ASSEMBLY__
  77
  78 typedef unsigned long xen_ulong_t;
  79
  80 #ifdef __XEN_TOOLS__
  81 #define XEN_PAGE_SIZE XC_PAGE_SIZE
  82 #else
  83 #define XEN_PAGE_SIZE PAGE_SIZE
  84 #endif
  85
  86 #define INVALID_MFN       (~0UL)
  87
  88 struct pt_fpreg {
  89     union {
  90         unsigned long bits[2];
  91         long double __dummy;    /* force 16-byte alignment */
  92     } u;
  93 };
  94
  95 union vac {
  96     unsigned long value;
  97     struct {
  98         int a_int:1;
  99         int a_from_int_cr:1;
 100         int a_to_int_cr:1;
 101         int a_from_psr:1;
 102         int a_from_cpuid:1;
 103         int a_cover:1;
 104         int a_bsw:1;
 105         long reserved:57;
 106     };
 107 };
 108 typedef union vac vac_t;
 109
 110 union vdc {
 111     unsigned long value;
 112     struct {
 113         int d_vmsw:1;
 114         int d_extint:1;
 115         int d_ibr_dbr:1;
 116         int d_pmc:1;
 117         int d_to_pmd:1;
 118         int d_itm:1;
 119         long reserved:58;
 120     };
 121 };
 122 typedef union vdc vdc_t;
 123
 124 struct mapped_regs {
 125     union vac   vac;
 126     union vdc   vdc;
 127     unsigned long  virt_env_vaddr;
 128     unsigned long  reserved1[29];
 129     unsigned long  vhpi;
 130     unsigned long  reserved2[95];
 131     union {
 132         unsigned long  vgr[16];
 133         unsigned long bank1_regs[16]; // bank1 regs (r16-r31) when bank0 active
 134     };
 135     union {
 136         unsigned long  vbgr[16];
 137         unsigned long bank0_regs[16]; // bank0 regs (r16-r31) when bank1 active
 138     };
 139     unsigned long  vnat;
 140     unsigned long  vbnat;
 141     unsigned long  vcpuid[5];
 142     unsigned long  reserved3[11];
 143     unsigned long  vpsr;
 144     unsigned long  vpr;
 145     unsigned long  reserved4[76];
 146     union {
 147         unsigned long  vcr[128];
 148         struct {
 149             unsigned long dcr;  // CR0
 150             unsigned long itm;
 151             unsigned long iva;
 152             unsigned long rsv1[5];
 153             unsigned long pta;  // CR8
 154             unsigned long rsv2[7];
 155             unsigned long ipsr;  // CR16
 156             unsigned long isr;
 157             unsigned long rsv3;
 158             unsigned long iip;
 159             unsigned long ifa;
 160             unsigned long itir;
 161             unsigned long iipa;
 162             unsigned long ifs;
 163             unsigned long iim;  // CR24
 164             unsigned long iha;
 165             unsigned long rsv4[38];
 166             unsigned long lid;  // CR64
 167             unsigned long ivr;
 168             unsigned long tpr;
 169             unsigned long eoi;
 170             unsigned long irr[4];
 171             unsigned long itv;  // CR72
 172             unsigned long pmv;
 173             unsigned long cmcv;
 174             unsigned long rsv5[5];
 175             unsigned long lrr0;  // CR80
 176             unsigned long lrr1;
 177             unsigned long rsv6[46];
 178         };
 179     };
 180     union {
 181         unsigned long  reserved5[128];
 182         struct {
 183             unsigned long precover_ifs;
 184             unsigned long unat;  // not sure if this is needed until NaT arch is done
 185             int interrupt_collection_enabled; // virtual psr.ic
 186             /* virtual interrupt deliverable flag is evtchn_upcall_mask in
 187              * shared info area now. interrupt_mask_addr is the address
 188              * of evtchn_upcall_mask for current vcpu
 189              */
 190             unsigned char *interrupt_mask_addr;
 191             int pending_interruption;
 192             unsigned char vpsr_pp;
 193             unsigned char vpsr_dfh;
 194             unsigned char hpsr_dfh;
 195             unsigned char hpsr_mfh;
 196             unsigned long reserved5_1[4];
 197             int metaphysical_mode; // 1 = use metaphys mapping, 0 = use virtual
 198             int banknum; // 0 or 1, which virtual register bank is active
 199             unsigned long rrs[8]; // region registers
 200             unsigned long krs[8]; // kernel registers
 201             unsigned long tmp[16]; // temp registers (e.g. for hyperprivops)
 202         };
 203     };
 204 };
 205 typedef struct mapped_regs mapped_regs_t;
 206
 207 struct vpd {
 208     struct mapped_regs vpd_low;
 209     unsigned long  reserved6[3456];
 210     unsigned long  vmm_avail[128];
 211     unsigned long  reserved7[4096];
 212 };
 213 typedef struct vpd vpd_t;
 214
 215 struct arch_vcpu_info {
 216 };
 217 typedef struct arch_vcpu_info arch_vcpu_info_t;
 218
 219 /*
 220  * This structure is used for magic page in domain pseudo physical address
 221  * space and the result of XENMEM_machine_memory_map.
 222  * As the XENMEM_machine_memory_map result,
 223  * xen_memory_map::nr_entries indicates the size in bytes
 224  * including struct xen_ia64_memmap_info. Not the number of entries.
 225  */
 226 struct xen_ia64_memmap_info {
 227     uint64_t efi_memmap_size;       /* size of EFI memory map */
 228     uint64_t efi_memdesc_size;      /* size of an EFI memory map descriptor */
 229     uint32_t efi_memdesc_version;   /* memory descriptor version */
 230     void *memdesc[0];               /* array of efi_memory_desc_t */
 231 };
 232 typedef struct xen_ia64_memmap_info xen_ia64_memmap_info_t;
 233
 234 struct arch_shared_info {
 235     /* PFN of the start_info page.  */
 236     unsigned long start_info_pfn;
 237
 238     /* Interrupt vector for event channel.  */
 239     int evtchn_vector;
 240
 241     /* PFN of memmap_info page */
 242     unsigned int memmap_info_num_pages;/* currently only = 1 case is
 243                                           supported. */
 244     unsigned long memmap_info_pfn;
 245
 246     uint64_t pad[31];
 247 };
 248 typedef struct arch_shared_info arch_shared_info_t;
 249
 250 typedef unsigned long xen_callback_t;
 251
 252 struct ia64_tr_entry {
 253     unsigned long pte;
 254     unsigned long itir;
 255     unsigned long vadr;
 256     unsigned long rid;
 257 };
 258 typedef struct ia64_tr_entry ia64_tr_entry_t;
 259 DEFINE_XEN_GUEST_HANDLE(ia64_tr_entry_t);
 260
 261 struct vcpu_tr_regs {
 262     struct ia64_tr_entry itrs[12];
 263     struct ia64_tr_entry dtrs[12];
 264 };
 265
 266 union vcpu_ar_regs {
 267     unsigned long ar[128];
 268     struct {
 269         unsigned long kr[8];
 270         unsigned long rsv1[8];
 271         unsigned long rsc;
 272         unsigned long bsp;
 273         unsigned long bspstore;
 274         unsigned long rnat;
 275         unsigned long rsv2;
 276         unsigned long fcr;
 277         unsigned long rsv3[2];
 278         unsigned long eflag;
 279         unsigned long csd;
 280         unsigned long ssd;
 281         unsigned long cflg;
 282         unsigned long fsr;
 283         unsigned long fir;
 284         unsigned long fdr;
 285         unsigned long rsv4;
 286         unsigned long ccv; /* 32 */
 287         unsigned long rsv5[3];
 288         unsigned long unat;
 289         unsigned long rsv6[3];
 290         unsigned long fpsr;
 291         unsigned long rsv7[3];
 292         unsigned long itc;
 293         unsigned long rsv8[3];
 294         unsigned long ign1[16];
 295         unsigned long pfs; /* 64 */
 296         unsigned long lc;
 297         unsigned long ec;
 298         unsigned long rsv9[45];
 299         unsigned long ign2[16];
 300     };
 301 };
 302
 303 union vcpu_cr_regs {
 304     unsigned long cr[128];
 305     struct {
 306         unsigned long dcr;  // CR0
 307         unsigned long itm;
 308         unsigned long iva;
 309         unsigned long rsv1[5];
 310         unsigned long pta;  // CR8
 311         unsigned long rsv2[7];
 312         unsigned long ipsr;  // CR16
 313         unsigned long isr;
 314         unsigned long rsv3;
 315         unsigned long iip;
 316         unsigned long ifa;
 317         unsigned long itir;
 318         unsigned long iipa;
 319         unsigned long ifs;
 320         unsigned long iim;  // CR24
 321         unsigned long iha;
 322         unsigned long rsv4[38];
 323         unsigned long lid;  // CR64
 324         unsigned long ivr;
 325         unsigned long tpr;
 326         unsigned long eoi;
 327         unsigned long irr[4];
 328         unsigned long itv;  // CR72
 329         unsigned long pmv;
 330         unsigned long cmcv;
 331         unsigned long rsv5[5];
 332         unsigned long lrr0;  // CR80
 333         unsigned long lrr1;
 334         unsigned long rsv6[46];
 335     };
 336 };
 337
 338 struct vcpu_guest_context_regs {
 339         unsigned long r[32];
 340         unsigned long b[8];
 341         unsigned long bank[16];
 342         unsigned long ip;
 343         unsigned long psr;
 344         unsigned long cfm;
 345         unsigned long pr;
 346         unsigned int nats; /* NaT bits for r1-r31.  */
 347         unsigned int bnats; /* Nat bits for banked registers.  */
 348         union vcpu_ar_regs ar;
 349         union vcpu_cr_regs cr;
 350         struct pt_fpreg f[128];
 351         unsigned long dbr[8];
 352         unsigned long ibr[8];
 353         unsigned long rr[8];
 354         unsigned long pkr[16];
 355
 356         /* FIXME: cpuid,pmd,pmc */
 357
 358         unsigned long xip;
 359         unsigned long xpsr;
 360         unsigned long xfs;
 361         unsigned long xr[4];
 362
 363         struct vcpu_tr_regs tr;
 364
 365         /* Physical registers in case of debug event.  */
 366         unsigned long excp_iipa;
 367         unsigned long excp_ifa;
 368         unsigned long excp_isr;
 369         unsigned int excp_vector;
 370
 371         /*
 372          * The rbs is intended to be the image of the stacked registers still
 373          * in the cpu (not yet stored in memory).  It is laid out as if it
 374          * were written in memory at a 512 (64*8) aligned address + offset.
 375          * rbs_voff is (offset / 8).  rbs_nat contains NaT bits for the
 376          * remaining rbs registers.  rbs_rnat contains NaT bits for in memory
 377          * rbs registers.
 378          * Note: loadrs is 2**14 bytes == 2**11 slots.
 379          */
 380         unsigned int rbs_voff;
 381         unsigned long rbs[2048];
 382         unsigned long rbs_rnat;
 383
 384         /*
 385          * RSE.N_STACKED_PHYS via PAL_RSE_INFO
 386          * Strictly this isn't cpu context, but this value is necessary
 387          * for domain save/restore. So is here.
 388          */
 389         unsigned long num_phys_stacked;
 390 };
 391
 392 struct vcpu_guest_context {
 393 #define VGCF_EXTRA_REGS (1UL << 1)      /* Set extra regs.  */
 394 #define VGCF_SET_CR_IRR (1UL << 2)      /* Set cr_irr[0:3]. */
 395 #define VGCF_online     (1UL << 3)  /* make this vcpu online */
 396     unsigned long flags;       /* VGCF_* flags */
 397
 398     struct vcpu_guest_context_regs regs;
 399
 400     unsigned long event_callback_ip;
 401
 402     /* xen doesn't share privregs pages with hvm domain so that this member
 403      * doesn't make sense for hvm domain.
 404      * ~0UL is already used for INVALID_P2M_ENTRY. */
 405 #define VGC_PRIVREGS_HVM       (~(-2UL))
 406     unsigned long privregs_pfn;
 407 };
 408 typedef struct vcpu_guest_context vcpu_guest_context_t;
 409 DEFINE_XEN_GUEST_HANDLE(vcpu_guest_context_t);
 410
 411 /* dom0 vp op */
 412 #define __HYPERVISOR_ia64_dom0vp_op     __HYPERVISOR_arch_0
 413 /*  Map io space in machine address to dom0 physical address space.
 414     Currently physical assigned address equals to machine address.  */
 415 #define IA64_DOM0VP_ioremap             0
 416
 417 /* Convert a pseudo physical page frame number to the corresponding
 418    machine page frame number. If no page is assigned, INVALID_MFN or
 419    GPFN_INV_MASK is returned depending on domain's non-vti/vti mode.  */
 420 #define IA64_DOM0VP_phystomach          1
 421
 422 /* Convert a machine page frame number to the corresponding pseudo physical
 423    page frame number of the caller domain.  */
 424 #define IA64_DOM0VP_machtophys          3
 425
 426 /* Reserved for future use.  */
 427 #define IA64_DOM0VP_iounmap             4
 428
 429 /* Unmap and free pages contained in the specified pseudo physical region.  */
 430 #define IA64_DOM0VP_zap_physmap         5
 431
 432 /* Assign machine page frame to dom0's pseudo physical address space.  */
 433 #define IA64_DOM0VP_add_physmap         6
 434
 435 /* expose the p2m table into domain */
 436 #define IA64_DOM0VP_expose_p2m          7
 437
 438 /* xen perfmon */
 439 #define IA64_DOM0VP_perfmon             8
 440
 441 /* gmfn version of IA64_DOM0VP_add_physmap */
 442 #define IA64_DOM0VP_add_physmap_with_gmfn       9
 443
 444 /* get fpswa revision */
 445 #define IA64_DOM0VP_fpswa_revision      10
 446
 447 /* Add an I/O port space range */
 448 #define IA64_DOM0VP_add_io_space        11
 449
 450 /* expose the foreign domain's p2m table into privileged domain */
 451 #define IA64_DOM0VP_expose_foreign_p2m  12
 452 #define         IA64_DOM0VP_EFP_ALLOC_PTE       0x1 /* allocate p2m table */
 453
 454 /* unexpose the foreign domain's p2m table into privileged domain */
 455 #define IA64_DOM0VP_unexpose_foreign_p2m        13
 456
 457 // flags for page assignement to pseudo physical address space
 458 #define _ASSIGN_readonly                0
 459 #define ASSIGN_readonly                 (1UL << _ASSIGN_readonly)
 460 #define ASSIGN_writable                 (0UL << _ASSIGN_readonly) // dummy flag
 461 /* Internal only: memory attribute must be WC/UC/UCE.  */
 462 #define _ASSIGN_nocache                 1
 463 #define ASSIGN_nocache                  (1UL << _ASSIGN_nocache)
 464 // tlb tracking
 465 #define _ASSIGN_tlb_track               2
 466 #define ASSIGN_tlb_track                (1UL << _ASSIGN_tlb_track)
 467 /* Internal only: associated with PGC_allocated bit */
 468 #define _ASSIGN_pgc_allocated           3
 469 #define ASSIGN_pgc_allocated            (1UL << _ASSIGN_pgc_allocated)
 470 /* Page is an IO page.  */
 471 #define _ASSIGN_io                      4
 472 #define ASSIGN_io                       (1UL << _ASSIGN_io)
 473
 474 /* This structure has the same layout of struct ia64_boot_param, defined in
 475    <asm/system.h>.  It is redefined here to ease use.  */
 476 struct xen_ia64_boot_param {
 477         unsigned long command_line;     /* physical address of cmd line args */
 478         unsigned long efi_systab;       /* physical address of EFI system table */
 479         unsigned long efi_memmap;       /* physical address of EFI memory map */
 480         unsigned long efi_memmap_size;  /* size of EFI memory map */
 481         unsigned long efi_memdesc_size; /* size of an EFI memory map descriptor */
 482         unsigned int  efi_memdesc_version;      /* memory descriptor version */
 483         struct {
 484                 unsigned short num_cols;        /* number of columns on console.  */
 485                 unsigned short num_rows;        /* number of rows on console.  */
 486                 unsigned short orig_x;  /* cursor's x position */
 487                 unsigned short orig_y;  /* cursor's y position */
 488         } console_info;
 489         unsigned long fpswa;            /* physical address of the fpswa interface */
 490         unsigned long initrd_start;
 491         unsigned long initrd_size;
 492         unsigned long domain_start;     /* va where the boot time domain begins */
 493         unsigned long domain_size;      /* how big is the boot domain */
 494 };
 495
 496 #endif /* !__ASSEMBLY__ */
 497
 498 /* Size of the shared_info area (this is not related to page size).  */
 499 #define XSI_SHIFT                       14
 500 #define XSI_SIZE                        (1 << XSI_SHIFT)
 501 /* Log size of mapped_regs area (64 KB - only 4KB is used).  */
 502 #define XMAPPEDREGS_SHIFT               12
 503 #define XMAPPEDREGS_SIZE                (1 << XMAPPEDREGS_SHIFT)
 504 /* Offset of XASI (Xen arch shared info) wrt XSI_BASE.  */
 505 #define XMAPPEDREGS_OFS                 XSI_SIZE
 506
 507 /* Hyperprivops.  */
 508 #define HYPERPRIVOP_START               0x1
 509 #define HYPERPRIVOP_RFI                 (HYPERPRIVOP_START + 0x0)
 510 #define HYPERPRIVOP_RSM_DT              (HYPERPRIVOP_START + 0x1)
 511 #define HYPERPRIVOP_SSM_DT              (HYPERPRIVOP_START + 0x2)
 512 #define HYPERPRIVOP_COVER               (HYPERPRIVOP_START + 0x3)
 513 #define HYPERPRIVOP_ITC_D               (HYPERPRIVOP_START + 0x4)
 514 #define HYPERPRIVOP_ITC_I               (HYPERPRIVOP_START + 0x5)
 515 #define HYPERPRIVOP_SSM_I               (HYPERPRIVOP_START + 0x6)
 516 #define HYPERPRIVOP_GET_IVR             (HYPERPRIVOP_START + 0x7)
 517 #define HYPERPRIVOP_GET_TPR             (HYPERPRIVOP_START + 0x8)
 518 #define HYPERPRIVOP_SET_TPR             (HYPERPRIVOP_START + 0x9)
 519 #define HYPERPRIVOP_EOI                 (HYPERPRIVOP_START + 0xa)
 520 #define HYPERPRIVOP_SET_ITM             (HYPERPRIVOP_START + 0xb)
 521 #define HYPERPRIVOP_THASH               (HYPERPRIVOP_START + 0xc)
 522 #define HYPERPRIVOP_PTC_GA              (HYPERPRIVOP_START + 0xd)
 523 #define HYPERPRIVOP_ITR_D               (HYPERPRIVOP_START + 0xe)
 524 #define HYPERPRIVOP_GET_RR              (HYPERPRIVOP_START + 0xf)
 525 #define HYPERPRIVOP_SET_RR              (HYPERPRIVOP_START + 0x10)
 526 #define HYPERPRIVOP_SET_KR              (HYPERPRIVOP_START + 0x11)
 527 #define HYPERPRIVOP_FC                  (HYPERPRIVOP_START + 0x12)
 528 #define HYPERPRIVOP_GET_CPUID           (HYPERPRIVOP_START + 0x13)
 529 #define HYPERPRIVOP_GET_PMD             (HYPERPRIVOP_START + 0x14)
 530 #define HYPERPRIVOP_GET_EFLAG           (HYPERPRIVOP_START + 0x15)
 531 #define HYPERPRIVOP_SET_EFLAG           (HYPERPRIVOP_START + 0x16)
 532 #define HYPERPRIVOP_RSM_BE              (HYPERPRIVOP_START + 0x17)
 533 #define HYPERPRIVOP_GET_PSR             (HYPERPRIVOP_START + 0x18)
 534 #define HYPERPRIVOP_SET_RR0_TO_RR4      (HYPERPRIVOP_START + 0x19)
 535 #define HYPERPRIVOP_MAX                 (0x1a)
 536
 537 /* Fast and light hypercalls.  */
 538 #define __HYPERVISOR_ia64_fast_eoi      __HYPERVISOR_arch_1
 539
 540 /* Extra debug features.  */
 541 #define __HYPERVISOR_ia64_debug_op  __HYPERVISOR_arch_2
 542
 543 /* Xencomm macros.  */
 544 #define XENCOMM_INLINE_MASK 0xf800000000000000UL
 545 #define XENCOMM_INLINE_FLAG 0x8000000000000000UL
 546
 547 #ifndef __ASSEMBLY__
 548
 549 /*
 550  * Optimization features.
 551  * The hypervisor may do some special optimizations for guests. This hypercall
 552  * can be used to switch on/of these special optimizations.
 553  */
 554 #define __HYPERVISOR_opt_feature        0x700UL
 555
 556 #define XEN_IA64_OPTF_OFF       0x0
 557 #define XEN_IA64_OPTF_ON        0x1
 558
 559 /*
 560  * If this feature is switched on, the hypervisor inserts the
 561  * tlb entries without calling the guests traphandler.
 562  * This is useful in guests using region 7 for identity mapping
 563  * like the linux kernel does.
 564  */
 565 #define XEN_IA64_OPTF_IDENT_MAP_REG7    1
 566
 567 /* Identity mapping of region 4 addresses in HVM. */
 568 #define XEN_IA64_OPTF_IDENT_MAP_REG4    2
 569
 570 /* Identity mapping of region 5 addresses in HVM. */
 571 #define XEN_IA64_OPTF_IDENT_MAP_REG5    3
 572
 573 #define XEN_IA64_OPTF_IDENT_MAP_NOT_SET  (0)
 574
 575 struct xen_ia64_opt_feature {
 576         unsigned long cmd;              /* Which feature */
 577         unsigned char on;               /* Switch feature on/off */
 578         union {
 579                 struct {
 580                                 /* The page protection bit mask of the pte.
 581                                  * This will be or'ed with the pte. */
 582                         unsigned long pgprot;
 583                         unsigned long key;      /* A protection key for itir. */
 584                 };
 585         };
 586 };
 587
 588 #endif /* __ASSEMBLY__ */
 589
 590 /* xen perfmon */
 591 #ifdef XEN
 592 #ifndef __ASSEMBLY__
 593 #ifndef _ASM_IA64_PERFMON_H
 594
 595 #include <xen/list.h>   // asm/perfmon.h requires struct list_head
 596 #include <asm/perfmon.h>
 597 // for PFM_xxx and pfarg_features_t, pfarg_context_t, pfarg_reg_t, pfarg_load_t
 598
 599 #endif /* _ASM_IA64_PERFMON_H */
 600
 601 DEFINE_XEN_GUEST_HANDLE(pfarg_features_t);
 602 DEFINE_XEN_GUEST_HANDLE(pfarg_context_t);
 603 DEFINE_XEN_GUEST_HANDLE(pfarg_reg_t);
 604 DEFINE_XEN_GUEST_HANDLE(pfarg_load_t);
 605 #endif /* __ASSEMBLY__ */
 606 #endif /* XEN */
 607
 608 #ifndef __ASSEMBLY__
 609 #include "arch-ia64/hvm/memmap.h"
 610 #endif
 611
 612 #endif /* __HYPERVISOR_IF_IA64_H__ */
 613
 614 /*
 615  * Local variables:
 616  * mode: C
 617  * c-set-style: "BSD"
 618  * c-basic-offset: 4
 619  * tab-width: 4
 620  * indent-tabs-mode: nil
 621  * End:
 622  */