xen-vtx-unstable

annotate linux-2.6-xen-sparse/include/asm-xen/asm-i386/hypercall.h @ 6568:dd668f7527cb

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author cl349@firebug.cl.cam.ac.uk
date Thu Sep 01 10:16:14 2005 +0000 (2005-09-01)
parents 38312fe7ec38 f0dc15fd3c1b
children 939fd35d58da f752e0c873a6 4d899a738d59 e7c7196fa329
rev   line source
cl349@4492 1 /******************************************************************************
cl349@4492 2 * hypercall.h
cl349@4492 3 *
cl349@4492 4 * Linux-specific hypervisor handling.
cl349@4492 5 *
cl349@4492 6 * Copyright (c) 2002-2004, K A Fraser
cl349@4492 7 *
cl349@4492 8 * This file may be distributed separately from the Linux kernel, or
cl349@4492 9 * incorporated into other software packages, subject to the following license:
cl349@4492 10 *
cl349@4492 11 * Permission is hereby granted, free of charge, to any person obtaining a copy
cl349@4492 12 * of this source file (the "Software"), to deal in the Software without
cl349@4492 13 * restriction, including without limitation the rights to use, copy, modify,
cl349@4492 14 * merge, publish, distribute, sublicense, and/or sell copies of the Software,
cl349@4492 15 * and to permit persons to whom the Software is furnished to do so, subject to
cl349@4492 16 * the following conditions:
cl349@4492 17 *
cl349@4492 18 * The above copyright notice and this permission notice shall be included in
cl349@4492 19 * all copies or substantial portions of the Software.
cl349@4492 20 *
cl349@4492 21 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
cl349@4492 22 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
cl349@4492 23 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
cl349@4492 24 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
cl349@4492 25 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
cl349@4492 26 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
cl349@4492 27 * IN THE SOFTWARE.
cl349@4492 28 */
cl349@4492 29
cl349@4492 30 #ifndef __HYPERCALL_H__
cl349@4492 31 #define __HYPERCALL_H__
kaf24@6452 32
cl349@4492 33 #include <asm-xen/xen-public/xen.h>
cl349@4492 34
kaf24@6452 35 #define _hypercall0(type, name) \
kaf24@6452 36 ({ \
kaf24@6452 37 long __res; \
kaf24@6452 38 asm volatile ( \
kaf24@6452 39 TRAP_INSTR \
kaf24@6452 40 : "=a" (__res) \
kaf24@6452 41 : "0" (__HYPERVISOR_##name) \
kaf24@6452 42 : "memory" ); \
kaf24@6452 43 (type)__res; \
kaf24@6452 44 })
kaf24@6452 45
kaf24@6452 46 #define _hypercall1(type, name, a1) \
kaf24@6452 47 ({ \
kaf24@6452 48 long __res, __ign1; \
kaf24@6452 49 asm volatile ( \
kaf24@6452 50 TRAP_INSTR \
kaf24@6452 51 : "=a" (__res), "=b" (__ign1) \
kaf24@6452 52 : "0" (__HYPERVISOR_##name), "1" ((long)(a1)) \
kaf24@6452 53 : "memory" ); \
kaf24@6452 54 (type)__res; \
kaf24@6452 55 })
kaf24@6452 56
kaf24@6452 57 #define _hypercall2(type, name, a1, a2) \
kaf24@6452 58 ({ \
kaf24@6452 59 long __res, __ign1, __ign2; \
kaf24@6452 60 asm volatile ( \
kaf24@6452 61 TRAP_INSTR \
kaf24@6452 62 : "=a" (__res), "=b" (__ign1), "=c" (__ign2) \
kaf24@6452 63 : "0" (__HYPERVISOR_##name), "1" ((long)(a1)), \
kaf24@6452 64 "2" ((long)(a2)) \
kaf24@6452 65 : "memory" ); \
kaf24@6452 66 (type)__res; \
kaf24@6452 67 })
kaf24@6452 68
kaf24@6452 69 #define _hypercall3(type, name, a1, a2, a3) \
kaf24@6452 70 ({ \
kaf24@6452 71 long __res, __ign1, __ign2, __ign3; \
kaf24@6452 72 asm volatile ( \
kaf24@6452 73 TRAP_INSTR \
kaf24@6452 74 : "=a" (__res), "=b" (__ign1), "=c" (__ign2), \
kaf24@6452 75 "=d" (__ign3) \
kaf24@6452 76 : "0" (__HYPERVISOR_##name), "1" ((long)(a1)), \
kaf24@6452 77 "2" ((long)(a2)), "3" ((long)(a3)) \
kaf24@6452 78 : "memory" ); \
kaf24@6452 79 (type)__res; \
kaf24@6452 80 })
kaf24@6452 81
kaf24@6452 82 #define _hypercall4(type, name, a1, a2, a3, a4) \
kaf24@6452 83 ({ \
kaf24@6452 84 long __res, __ign1, __ign2, __ign3, __ign4; \
kaf24@6452 85 asm volatile ( \
kaf24@6452 86 TRAP_INSTR \
kaf24@6452 87 : "=a" (__res), "=b" (__ign1), "=c" (__ign2), \
kaf24@6452 88 "=d" (__ign3), "=S" (__ign4) \
kaf24@6452 89 : "0" (__HYPERVISOR_##name), "1" ((long)(a1)), \
kaf24@6452 90 "2" ((long)(a2)), "3" ((long)(a3)), \
kaf24@6452 91 "4" ((long)(a4)) \
kaf24@6452 92 : "memory" ); \
kaf24@6452 93 (type)__res; \
kaf24@6452 94 })
kaf24@6452 95
kaf24@6452 96 #define _hypercall5(type, name, a1, a2, a3, a4, a5) \
kaf24@6452 97 ({ \
kaf24@6452 98 long __res, __ign1, __ign2, __ign3, __ign4, __ign5; \
kaf24@6452 99 asm volatile ( \
kaf24@6452 100 TRAP_INSTR \
kaf24@6452 101 : "=a" (__res), "=b" (__ign1), "=c" (__ign2), \
kaf24@6452 102 "=d" (__ign3), "=S" (__ign4), "=D" (__ign5) \
kaf24@6452 103 : "0" (__HYPERVISOR_##name), "1" ((long)(a1)), \
kaf24@6452 104 "2" ((long)(a2)), "3" ((long)(a3)), \
kaf24@6452 105 "4" ((long)(a4)), "5" ((long)(a5)) \
kaf24@6452 106 : "memory" ); \
kaf24@6452 107 (type)__res; \
kaf24@6452 108 })
cl349@4492 109
cl349@4492 110 static inline int
cl349@4492 111 HYPERVISOR_set_trap_table(
kaf24@6452 112 trap_info_t *table)
cl349@4492 113 {
kaf24@6452 114 return _hypercall1(int, set_trap_table, table);
cl349@4492 115 }
cl349@4492 116
cl349@4492 117 static inline int
cl349@4492 118 HYPERVISOR_mmu_update(
kaf24@6452 119 mmu_update_t *req, int count, int *success_count, domid_t domid)
cl349@4492 120 {
kaf24@6452 121 return _hypercall4(int, mmu_update, req, count, success_count, domid);
cl349@4492 122 }
cl349@4492 123
cl349@4492 124 static inline int
cl349@4492 125 HYPERVISOR_mmuext_op(
kaf24@6452 126 struct mmuext_op *op, int count, int *success_count, domid_t domid)
cl349@4492 127 {
kaf24@6452 128 return _hypercall4(int, mmuext_op, op, count, success_count, domid);
cl349@4492 129 }
cl349@4492 130
cl349@4492 131 static inline int
cl349@4492 132 HYPERVISOR_set_gdt(
kaf24@6452 133 unsigned long *frame_list, int entries)
cl349@4492 134 {
kaf24@6452 135 return _hypercall2(int, set_gdt, frame_list, entries);
cl349@4492 136 }
cl349@4492 137
cl349@4492 138 static inline int
cl349@4492 139 HYPERVISOR_stack_switch(
kaf24@6452 140 unsigned long ss, unsigned long esp)
cl349@4492 141 {
kaf24@6452 142 return _hypercall2(int, stack_switch, ss, esp);
cl349@4492 143 }
cl349@4492 144
cl349@4492 145 static inline int
cl349@4492 146 HYPERVISOR_set_callbacks(
kaf24@6452 147 unsigned long event_selector, unsigned long event_address,
kaf24@6452 148 unsigned long failsafe_selector, unsigned long failsafe_address)
cl349@4492 149 {
kaf24@6452 150 return _hypercall4(int, set_callbacks,
kaf24@6452 151 event_selector, event_address,
kaf24@6452 152 failsafe_selector, failsafe_address);
cl349@4492 153 }
cl349@4492 154
cl349@4492 155 static inline int
cl349@4492 156 HYPERVISOR_fpu_taskswitch(
kaf24@6452 157 int set)
cl349@4492 158 {
kaf24@6452 159 return _hypercall1(int, fpu_taskswitch, set);
cl349@4492 160 }
cl349@4492 161
cl349@4492 162 static inline int
cl349@4492 163 HYPERVISOR_yield(
kaf24@6452 164 void)
cl349@4492 165 {
kaf24@6452 166 return _hypercall2(int, sched_op, SCHEDOP_yield, 0);
cl349@4492 167 }
cl349@4492 168
cl349@4492 169 static inline int
cl349@4492 170 HYPERVISOR_block(
kaf24@6452 171 void)
cl349@4492 172 {
kaf24@6452 173 return _hypercall2(int, sched_op, SCHEDOP_block, 0);
cl349@4492 174 }
cl349@4492 175
cl349@4492 176 static inline int
cl349@4492 177 HYPERVISOR_shutdown(
kaf24@6452 178 void)
cl349@4492 179 {
kaf24@6452 180 return _hypercall2(int, sched_op, SCHEDOP_shutdown |
kaf24@6452 181 (SHUTDOWN_poweroff << SCHEDOP_reasonshift), 0);
cl349@4492 182 }
cl349@4492 183
cl349@4492 184 static inline int
cl349@4492 185 HYPERVISOR_reboot(
kaf24@6452 186 void)
cl349@4492 187 {
kaf24@6452 188 return _hypercall2(int, sched_op, SCHEDOP_shutdown |
kaf24@6452 189 (SHUTDOWN_reboot << SCHEDOP_reasonshift), 0);
cl349@4492 190 }
cl349@4492 191
cl349@4492 192 static inline int
cl349@4492 193 HYPERVISOR_crash(
kaf24@6452 194 void)
cl349@4492 195 {
kaf24@6452 196 return _hypercall2(int, sched_op, SCHEDOP_shutdown |
kaf24@6452 197 (SHUTDOWN_crash << SCHEDOP_reasonshift), 0);
cl349@4492 198 }
cl349@4492 199
cl349@4492 200 static inline long
cl349@4492 201 HYPERVISOR_set_timer_op(
kaf24@6452 202 u64 timeout)
cl349@4492 203 {
kaf24@6452 204 unsigned long timeout_hi = (unsigned long)(timeout>>32);
kaf24@6452 205 unsigned long timeout_lo = (unsigned long)timeout;
kaf24@6452 206 return _hypercall2(long, set_timer_op, timeout_lo, timeout_hi);
cl349@4492 207 }
cl349@4492 208
cl349@4492 209 static inline int
cl349@4492 210 HYPERVISOR_dom0_op(
kaf24@6452 211 dom0_op_t *dom0_op)
cl349@4492 212 {
kaf24@6452 213 dom0_op->interface_version = DOM0_INTERFACE_VERSION;
kaf24@6452 214 return _hypercall1(int, dom0_op, dom0_op);
cl349@4492 215 }
cl349@4492 216
cl349@4492 217 static inline int
cl349@4492 218 HYPERVISOR_set_debugreg(
kaf24@6452 219 int reg, unsigned long value)
cl349@4492 220 {
kaf24@6452 221 return _hypercall2(int, set_debugreg, reg, value);
cl349@4492 222 }
cl349@4492 223
cl349@4492 224 static inline unsigned long
cl349@4492 225 HYPERVISOR_get_debugreg(
kaf24@6452 226 int reg)
cl349@4492 227 {
kaf24@6452 228 return _hypercall1(unsigned long, get_debugreg, reg);
cl349@4492 229 }
cl349@4492 230
cl349@4492 231 static inline int
cl349@4492 232 HYPERVISOR_update_descriptor(
kaf24@6452 233 u64 ma, u64 desc)
cl349@4492 234 {
kaf24@6452 235 return _hypercall4(int, update_descriptor, ma, ma>>32, desc, desc>>32);
cl349@4492 236 }
cl349@4492 237
cl349@4492 238 static inline int
kaf24@6468 239 HYPERVISOR_memory_op(
kaf24@6468 240 unsigned int cmd, void *arg)
cl349@4492 241 {
kaf24@6468 242 return _hypercall2(int, memory_op, cmd, arg);
cl349@4492 243 }
cl349@4492 244
cl349@4492 245 static inline int
cl349@4492 246 HYPERVISOR_multicall(
kaf24@6452 247 void *call_list, int nr_calls)
cl349@4492 248 {
kaf24@6452 249 return _hypercall2(int, multicall, call_list, nr_calls);
cl349@4492 250 }
cl349@4492 251
cl349@4492 252 static inline int
cl349@4492 253 HYPERVISOR_update_va_mapping(
kaf24@6452 254 unsigned long va, pte_t new_val, unsigned long flags)
cl349@4492 255 {
kaf24@6452 256 unsigned long pte_hi = 0;
kaf24@5671 257 #ifdef CONFIG_X86_PAE
kaf24@6452 258 pte_hi = new_val.pte_high;
kaf24@5671 259 #endif
kaf24@6452 260 return _hypercall4(int, update_va_mapping, va,
kaf24@6452 261 new_val.pte_low, pte_hi, flags);
cl349@4492 262 }
cl349@4492 263
cl349@4492 264 static inline int
cl349@4492 265 HYPERVISOR_event_channel_op(
kaf24@6452 266 void *op)
cl349@4492 267 {
kaf24@6452 268 return _hypercall1(int, event_channel_op, op);
cl349@4492 269 }
cl349@4492 270
cl349@4492 271 static inline int
cl349@4492 272 HYPERVISOR_xen_version(
kaf24@6452 273 int cmd)
cl349@4492 274 {
kaf24@6452 275 return _hypercall1(int, xen_version, cmd);
cl349@4492 276 }
cl349@4492 277
cl349@4492 278 static inline int
cl349@4492 279 HYPERVISOR_console_io(
kaf24@6452 280 int cmd, int count, char *str)
cl349@4492 281 {
kaf24@6452 282 return _hypercall3(int, console_io, cmd, count, str);
cl349@4492 283 }
cl349@4492 284
cl349@4492 285 static inline int
cl349@4492 286 HYPERVISOR_physdev_op(
kaf24@6452 287 void *physdev_op)
cl349@4492 288 {
kaf24@6452 289 return _hypercall1(int, physdev_op, physdev_op);
cl349@4492 290 }
cl349@4492 291
cl349@4492 292 static inline int
cl349@4492 293 HYPERVISOR_grant_table_op(
kaf24@6452 294 unsigned int cmd, void *uop, unsigned int count)
cl349@4492 295 {
kaf24@6452 296 return _hypercall3(int, grant_table_op, cmd, uop, count);
cl349@4492 297 }
cl349@4492 298
cl349@4492 299 static inline int
cl349@4492 300 HYPERVISOR_update_va_mapping_otherdomain(
kaf24@6452 301 unsigned long va, pte_t new_val, unsigned long flags, domid_t domid)
cl349@4492 302 {
kaf24@6452 303 unsigned long pte_hi = 0;
kaf24@5671 304 #ifdef CONFIG_X86_PAE
kaf24@6452 305 pte_hi = new_val.pte_high;
kaf24@5671 306 #endif
kaf24@6452 307 return _hypercall5(int, update_va_mapping_otherdomain, va,
kaf24@6452 308 new_val.pte_low, pte_hi, flags, domid);
cl349@4492 309 }
cl349@4492 310
cl349@4492 311 static inline int
cl349@4492 312 HYPERVISOR_vm_assist(
kaf24@6452 313 unsigned int cmd, unsigned int type)
cl349@4492 314 {
kaf24@6452 315 return _hypercall2(int, vm_assist, cmd, type);
cl349@4492 316 }
cl349@4492 317
cl349@4492 318 static inline int
cl349@4492 319 HYPERVISOR_boot_vcpu(
kaf24@6452 320 unsigned long vcpu, vcpu_guest_context_t *ctxt)
cl349@4492 321 {
kaf24@6452 322 return _hypercall2(int, boot_vcpu, vcpu, ctxt);
kaf24@6452 323 }
kaf24@6452 324
kaf24@6452 325 static inline int
kaf24@6452 326 HYPERVISOR_vcpu_up(
kaf24@6452 327 int vcpu)
kaf24@6452 328 {
kaf24@6452 329 return _hypercall2(int, sched_op, SCHEDOP_vcpu_up |
kaf24@6452 330 (vcpu << SCHEDOP_vcpushift), 0);
kaf24@6452 331 }
cl349@4492 332
kaf24@6452 333 static inline int
kaf24@6452 334 HYPERVISOR_vcpu_pickle(
kaf24@6452 335 int vcpu, vcpu_guest_context_t *ctxt)
kaf24@6452 336 {
kaf24@6452 337 return _hypercall2(int, sched_op, SCHEDOP_vcpu_pickle |
kaf24@6452 338 (vcpu << SCHEDOP_vcpushift), ctxt);
kaf24@6452 339 }
cl349@4492 340
kaf24@6452 341 static inline int
kaf24@6452 342 HYPERVISOR_suspend(
kaf24@6452 343 unsigned long srec)
kaf24@6452 344 {
kaf24@6452 345 int ret;
kaf24@6452 346 unsigned long ign1, ign2;
kaf24@6452 347
kaf24@6452 348 /* On suspend, control software expects a suspend record in %esi. */
kaf24@6452 349 __asm__ __volatile__ (
kaf24@6452 350 TRAP_INSTR
kaf24@6452 351 : "=a" (ret), "=b" (ign1), "=S" (ign2)
kaf24@6452 352 : "0" (__HYPERVISOR_sched_op),
kaf24@6452 353 "1" (SCHEDOP_shutdown | (SHUTDOWN_suspend <<
kaf24@6452 354 SCHEDOP_reasonshift)),
kaf24@6452 355 "2" (srec) : "memory", "ecx");
kaf24@6452 356
kaf24@6452 357 return ret;
cl349@4492 358 }
cl349@4492 359
cl349@5523 360 static inline int
cl349@5523 361 HYPERVISOR_vcpu_down(
kaf24@6452 362 int vcpu)
cl349@5523 363 {
kaf24@6452 364 int ret;
kaf24@6452 365 unsigned long ign1;
kaf24@6452 366 /* Yes, I really do want to clobber edx here: when we resume a
kaf24@6452 367 vcpu after unpickling a multi-processor domain, it returns
kaf24@6452 368 here, but clobbers all of the call clobbered registers. */
kaf24@6452 369 __asm__ __volatile__ (
kaf24@6452 370 TRAP_INSTR
kaf24@6452 371 : "=a" (ret), "=b" (ign1)
kaf24@6452 372 : "0" (__HYPERVISOR_sched_op),
kaf24@6452 373 "1" (SCHEDOP_vcpu_down | (vcpu << SCHEDOP_vcpushift))
kaf24@6452 374 : "memory", "ecx", "edx" );
kaf24@6452 375 return ret;
cl349@5523 376 }
sos22@6268 377
cl349@4492 378 #endif /* __HYPERCALL_H__ */
kaf24@6452 379
kaf24@6452 380 /*
kaf24@6452 381 * Local variables:
kaf24@6452 382 * c-file-style: "linux"
kaf24@6452 383 * indent-tabs-mode: t
kaf24@6452 384 * c-indent-level: 8
kaf24@6452 385 * c-basic-offset: 8
kaf24@6452 386 * tab-width: 8
kaf24@6452 387 * End:
kaf24@6452 388 */