sys/arch/xen/include/amd64/hypercalls.h

   1 /* $NetBSD: hypercalls.h,v 1.4 2008/10/24 22:06:06 jym Exp $ */
   2 /******************************************************************************
   3  * hypercall.h
   4  *
   5  * Linux-specific hypervisor handling.
   6  *
   7  * Copyright (c) 2002-2004, K A Fraser
   8  *
   9  * 64-bit updates:
  10  *   Benjamin Liu <benjamin.liu@intel.com>
  11  *   Jun Nakajima <jun.nakajima@intel.com>
  12  *
  13  * This program is free software; you can redistribute it and/or
  14  * modify it under the terms of the GNU General Public License version 2
  15  * as published by the Free Software Foundation; or, when distributed
  16  * separately from the Linux kernel or incorporated into other
  17  * software packages, subject to the following license:
  18  *
  19  * Permission is hereby granted, free of charge, to any person obtaining a copy
  20  * of this source file (the "Software"), to deal in the Software without
  21  * restriction, including without limitation the rights to use, copy, modify,
  22  * merge, publish, distribute, sublicense, and/or sell copies of the Software,
  23  * and to permit persons to whom the Software is furnished to do so, subject to
  24  * the following conditions:
  25  *
  26  * The above copyright notice and this permission notice shall be included in
  27  * all copies or substantial portions of the Software.
  28  *
  29  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  30  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  31  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  32  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  33  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  34  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  35  * IN THE SOFTWARE.
  36  */
  37
  38 #ifndef __HYPERCALL_H__
  39 #define __HYPERCALL_H__
  40
  41 #define __STR(x) #x
  42 #define STR(x) __STR(x)
  43
  44 #define HYPERCALL_STR(name)                                     \
  45         "call hypercall_page + ("STR(__HYPERVISOR_##name)" * 32)"
  46
  47 #define _hypercall0(type, name)                 \
  48 ({                                              \
  49         long __res;                             \
  50         asm volatile (                          \
  51                 HYPERCALL_STR(name)             \
  52                 : "=a" (__res)                  \
  53                 :                               \
  54                 : "memory" );                   \
  55         (type)__res;                            \
  56 })
  57
  58 #define _hypercall1(type, name, a1)                             \
  59 ({                                                              \
  60         long __res, __ign1;                                     \
  61         asm volatile (                                          \
  62                 HYPERCALL_STR(name)                             \
  63                 : "=a" (__res), "=D" (__ign1)                   \
  64                 : "1" ((long)(a1))                              \
  65                 : "memory" );                                   \
  66         (type)__res;                                            \
  67 })
  68
  69 #define _hypercall2(type, name, a1, a2)                         \
  70 ({                                                              \
  71         long __res, __ign1, __ign2;                             \
  72         asm volatile (                                          \
  73                 HYPERCALL_STR(name)                             \
  74                 : "=a" (__res), "=D" (__ign1), "=S" (__ign2)    \
  75                 : "1" ((long)(a1)), "2" ((long)(a2))            \
  76                 : "memory" );                                   \
  77         (type)__res;                                            \
  78 })
  79
  80 #define _hypercall3(type, name, a1, a2, a3)                     \
  81 ({                                                              \
  82         long __res, __ign1, __ign2, __ign3;                     \
  83         asm volatile (                                          \
  84                 HYPERCALL_STR(name)                             \
  85                 : "=a" (__res), "=D" (__ign1), "=S" (__ign2),   \
  86                 "=d" (__ign3)                                   \
  87                 : "1" ((long)(a1)), "2" ((long)(a2)),           \
  88                 "3" ((long)(a3))                                \
  89                 : "memory" );                                   \
  90         (type)__res;                                            \
  91 })
  92
  93 #define _hypercall4(type, name, a1, a2, a3, a4)                 \
  94 ({                                                              \
  95         long __res, __ign1, __ign2, __ign3;                     \
  96         asm volatile (                                          \
  97                 "movq %7,%%r10; "                               \
  98                 HYPERCALL_STR(name)                             \
  99                 : "=a" (__res), "=D" (__ign1), "=S" (__ign2),   \
 100                 "=d" (__ign3)                                   \
 101                 : "1" ((long)(a1)), "2" ((long)(a2)),           \
 102                 "3" ((long)(a3)), "g" ((long)(a4))              \
 103                 : "memory", "r10" );                            \
 104         (type)__res;                                            \
 105 })
 106
 107 #define _hypercall5(type, name, a1, a2, a3, a4, a5)             \
 108 ({                                                              \
 109         long __res, __ign1, __ign2, __ign3;                     \
 110         asm volatile (                                          \
 111                 "movq %7,%%r10; movq %8,%%r8; "                 \
 112                 HYPERCALL_STR(name)                             \
 113                 : "=a" (__res), "=D" (__ign1), "=S" (__ign2),   \
 114                 "=d" (__ign3)                                   \
 115                 : "1" ((long)(a1)), "2" ((long)(a2)),           \
 116                 "3" ((long)(a3)), "g" ((long)(a4)),             \
 117                 "g" ((long)(a5))                                \
 118                 : "memory", "r10", "r8" );                      \
 119         (type)__res;                                            \
 120 })
 121
 122 static inline int
 123 HYPERVISOR_set_trap_table(
 124         trap_info_t *table)
 125 {
 126         return _hypercall1(int, set_trap_table, table);
 127 }
 128
 129 static inline int
 130 HYPERVISOR_mmu_update(
 131         mmu_update_t *req, int count, int *success_count, domid_t domid)
 132 {
 133         return _hypercall4(int, mmu_update, req, count, success_count, domid);
 134 }
 135
 136 static inline int
 137 HYPERVISOR_mmuext_op(
 138         struct mmuext_op *op, int count, int *success_count, domid_t domid)
 139 {
 140         return _hypercall4(int, mmuext_op, op, count, success_count, domid);
 141 }
 142
 143 static inline int
 144 HYPERVISOR_set_gdt(
 145         unsigned long *frame_list, int entries)
 146 {
 147         return _hypercall2(int, set_gdt, frame_list, entries);
 148 }
 149
 150 static inline int
 151 HYPERVISOR_stack_switch(
 152         unsigned long ss, unsigned long esp)
 153 {
 154         return _hypercall2(int, stack_switch, ss, esp);
 155 }
 156
 157 static inline int
 158 HYPERVISOR_set_callbacks(
 159         unsigned long event_address, unsigned long failsafe_address,
 160         unsigned long syscall_address)
 161 {
 162         return _hypercall3(int, set_callbacks,
 163                            event_address, failsafe_address, syscall_address);
 164 }
 165
 166 static inline int
 167 HYPERVISOR_fpu_taskswitch(
 168         int set)
 169 {
 170         return _hypercall1(int, fpu_taskswitch, set);
 171 }
 172
 173 static inline int
 174 HYPERVISOR_sched_op_compat(
 175         int cmd, unsigned long arg)
 176 {
 177         return _hypercall2(int, sched_op_compat, cmd, arg);
 178 }
 179
 180 static inline int
 181 HYPERVISOR_sched_op(
 182         int cmd, void *arg)
 183 {
 184         return _hypercall2(int, sched_op, cmd, arg);
 185 }
 186
 187 static inline long
 188 HYPERVISOR_set_timer_op(
 189         u64 timeout)
 190 {
 191         return _hypercall1(long, set_timer_op, timeout);
 192 }
 193
 194 static inline int
 195 HYPERVISOR_platform_op(
 196         struct xen_platform_op *platform_op)
 197 {
 198         platform_op->interface_version = XENPF_INTERFACE_VERSION;
 199         return _hypercall1(int, platform_op, platform_op);
 200 }
 201
 202 static inline int
 203 HYPERVISOR_set_debugreg(
 204         int reg, unsigned long value)
 205 {
 206         return _hypercall2(int, set_debugreg, reg, value);
 207 }
 208
 209 static inline unsigned long
 210 HYPERVISOR_get_debugreg(
 211         int reg)
 212 {
 213         return _hypercall1(unsigned long, get_debugreg, reg);
 214 }
 215
 216 static inline int
 217 HYPERVISOR_update_descriptor(
 218         unsigned long ma, unsigned long word)
 219 {
 220         return _hypercall2(int, update_descriptor, ma, word);
 221 }
 222
 223 static inline int
 224 HYPERVISOR_memory_op(
 225         unsigned int cmd, void *arg)
 226 {
 227         return _hypercall2(int, memory_op, cmd, arg);
 228 }
 229
 230 static inline int
 231 HYPERVISOR_multicall(
 232         multicall_entry_t *call_list, int nr_calls)
 233 {
 234         return _hypercall2(int, multicall, call_list, nr_calls);
 235 }
 236
 237 static inline int
 238 HYPERVISOR_update_va_mapping(
 239         unsigned long va, unsigned long new_val, unsigned long flags)
 240 {
 241         return _hypercall3(int, update_va_mapping, va, new_val, flags);
 242 }
 243
 244 static inline int
 245 HYPERVISOR_event_channel_op(void *op)
 246 {
 247         return _hypercall1(int, event_channel_op, op);
 248 }
 249
 250 static inline int
 251 HYPERVISOR_acm_op(
 252         int cmd, void *arg)
 253 {
 254         return _hypercall2(int, acm_op, cmd, arg);
 255 }
 256
 257 static inline int
 258 HYPERVISOR_xen_version(
 259         int cmd, void *arg)
 260 {
 261         return _hypercall2(int, xen_version, cmd, arg);
 262 }
 263
 264 static inline int
 265 HYPERVISOR_console_io(
 266         int cmd, int count, char *str)
 267 {
 268         return _hypercall3(int, console_io, cmd, count, str);
 269 }
 270
 271 static inline int
 272 HYPERVISOR_physdev_op(void *op)
 273 {
 274         return _hypercall1(int, physdev_op_compat, op);
 275 }
 276
 277 static inline int
 278 HYPERVISOR_grant_table_op(
 279         unsigned int cmd, void *uop, unsigned int count)
 280 {
 281         return _hypercall3(int, grant_table_op, cmd, uop, count);
 282 }
 283
 284 static inline int
 285 HYPERVISOR_update_va_mapping_otherdomain(
 286         unsigned long va, unsigned long new_val, unsigned long flags,
 287         domid_t domid)
 288 {
 289         return _hypercall4(int, update_va_mapping_otherdomain, va,
 290                            new_val, flags, domid);
 291 }
 292
 293 static inline int
 294 HYPERVISOR_vm_assist(
 295         unsigned int cmd, unsigned int type)
 296 {
 297         return _hypercall2(int, vm_assist, cmd, type);
 298 }
 299
 300 static inline int
 301 HYPERVISOR_vcpu_op(
 302         int cmd, int vcpuid, void *extra_args)
 303 {
 304         return _hypercall3(int, vcpu_op, cmd, vcpuid, extra_args);
 305 }
 306
 307 static inline int
 308 HYPERVISOR_set_segment_base(
 309         int reg, unsigned long value)
 310 {
 311         return _hypercall2(int, set_segment_base, reg, value);
 312 }
 313
 314 static inline int
 315 HYPERVISOR_suspend(
 316         unsigned long srec)
 317 {
 318         return _hypercall3(int, sched_op, SCHEDOP_shutdown,
 319                                  SHUTDOWN_suspend, srec);
 320 }
 321
 322 static inline long
 323 HYPERVISOR_yield(
 324         void)
 325 {
 326         return _hypercall2(int, sched_op, SCHEDOP_yield, 0);
 327 }
 328
 329 static inline long
 330 HYPERVISOR_block(
 331         void)
 332 {
 333         return _hypercall2(int, sched_op, SCHEDOP_block, 0);
 334 }
 335
 336 static inline long
 337 HYPERVISOR_shutdown(
 338         void)
 339 {
 340         return _hypercall2(int, sched_op, SCHEDOP_shutdown, SHUTDOWN_poweroff);
 341 }
 342
 343 static inline long
 344 HYPERVISOR_crash(
 345         void)
 346 {
 347         return _hypercall2(int, sched_op, SCHEDOP_shutdown, SHUTDOWN_crash);
 348 }
 349
 350 static inline long
 351 HYPERVISOR_reboot(
 352         void)
 353 {
 354         return _hypercall2(int, sched_op, SCHEDOP_shutdown, SHUTDOWN_reboot);
 355 }
 356
 357 static inline int
 358 HYPERVISOR_nmi_op(
 359         unsigned long op, void *arg)
 360 {
 361         return _hypercall2(int, nmi_op, op, arg);
 362 }
 363
 364 static inline unsigned long
 365 HYPERVISOR_hvm_op(
 366     int op, void *arg)
 367 {
 368     return _hypercall2(unsigned long, hvm_op, op, arg);
 369 }
 370
 371 static inline int
 372 HYPERVISOR_callback_op(
 373         int cmd, void *arg)
 374 {
 375         return _hypercall2(int, callback_op, cmd, arg);
 376 }
 377
 378 static inline int
 379 HYPERVISOR_xenoprof_op(
 380         int op, void *arg)
 381 {
 382         return _hypercall2(int, xenoprof_op, op, arg);
 383 }
 384
 385 static inline int
 386 HYPERVISOR_kexec_op(
 387         unsigned long op, void *args)
 388 {
 389         return _hypercall2(int, kexec_op, op, args);
 390 }
 391
 392 #if __XEN_INTERFACE_VERSION__ < 0x00030204
 393 static inline int
 394 HYPERVISOR_dom0_op(
 395         dom0_op_t *dom0_op)
 396 {
 397         dom0_op->interface_version = DOM0_INTERFACE_VERSION;
 398         return _hypercall1(int, dom0_op, dom0_op);
 399 }
 400 #endif  /* __XEN_INTERFACE_VERSION__ */
 401
 402 static inline int
 403 HYPERVISOR_machine_check(struct xen_mc *mc)
 404 {
 405         mc->interface_version = XEN_MCA_INTERFACE_VERSION;
 406         return _hypercall1(int, mca, mc);
 407 }
 408
 409 #endif /* __HYPERCALL_H__ */