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a42089dd JF |
1 | /****************************************************************************** |
2 | * hypercall.h | |
3 | * | |
4 | * Linux-specific hypervisor handling. | |
5 | * | |
6 | * Copyright (c) 2002-2004, K A Fraser | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or | |
9 | * modify it under the terms of the GNU General Public License version 2 | |
10 | * as published by the Free Software Foundation; or, when distributed | |
11 | * separately from the Linux kernel or incorporated into other | |
12 | * software packages, subject to the following license: | |
13 | * | |
14 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
15 | * of this source file (the "Software"), to deal in the Software without | |
16 | * restriction, including without limitation the rights to use, copy, modify, | |
17 | * merge, publish, distribute, sublicense, and/or sell copies of the Software, | |
18 | * and to permit persons to whom the Software is furnished to do so, subject to | |
19 | * the following conditions: | |
20 | * | |
21 | * The above copyright notice and this permission notice shall be included in | |
22 | * all copies or substantial portions of the Software. | |
23 | * | |
24 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
25 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
26 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
27 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
28 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | |
29 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS | |
30 | * IN THE SOFTWARE. | |
31 | */ | |
32 | ||
05e4d316 PA |
33 | #ifndef _ASM_X86_XEN_HYPERCALL_H |
34 | #define _ASM_X86_XEN_HYPERCALL_H | |
a42089dd | 35 | |
ecbf29cd JF |
36 | #include <linux/kernel.h> |
37 | #include <linux/spinlock.h> | |
a42089dd JF |
38 | #include <linux/errno.h> |
39 | #include <linux/string.h> | |
ecbf29cd JF |
40 | #include <linux/types.h> |
41 | ||
c796f213 JF |
42 | #include <trace/events/xen.h> |
43 | ||
ecbf29cd JF |
44 | #include <asm/page.h> |
45 | #include <asm/pgtable.h> | |
a42089dd JF |
46 | |
47 | #include <xen/interface/xen.h> | |
48 | #include <xen/interface/sched.h> | |
49 | #include <xen/interface/physdev.h> | |
eec07a9e | 50 | #include <xen/interface/platform.h> |
cef12ee5 | 51 | #include <xen/interface/xen-mca.h> |
a42089dd | 52 | |
e7435902 JF |
53 | /* |
54 | * The hypercall asms have to meet several constraints: | |
55 | * - Work on 32- and 64-bit. | |
56 | * The two architectures put their arguments in different sets of | |
57 | * registers. | |
58 | * | |
59 | * - Work around asm syntax quirks | |
60 | * It isn't possible to specify one of the rNN registers in a | |
61 | * constraint, so we use explicit register variables to get the | |
62 | * args into the right place. | |
63 | * | |
64 | * - Mark all registers as potentially clobbered | |
65 | * Even unused parameters can be clobbered by the hypervisor, so we | |
66 | * need to make sure gcc knows it. | |
67 | * | |
68 | * - Avoid compiler bugs. | |
69 | * This is the tricky part. Because x86_32 has such a constrained | |
70 | * register set, gcc versions below 4.3 have trouble generating | |
71 | * code when all the arg registers and memory are trashed by the | |
72 | * asm. There are syntactically simpler ways of achieving the | |
73 | * semantics below, but they cause the compiler to crash. | |
74 | * | |
75 | * The only combination I found which works is: | |
76 | * - assign the __argX variables first | |
77 | * - list all actually used parameters as "+r" (__argX) | |
78 | * - clobber the rest | |
79 | * | |
80 | * The result certainly isn't pretty, and it really shows up cpp's | |
81 | * weakness as as macro language. Sorry. (But let's just give thanks | |
82 | * there aren't more than 5 arguments...) | |
83 | */ | |
84 | ||
a42089dd JF |
85 | extern struct { char _entry[32]; } hypercall_page[]; |
86 | ||
e7435902 JF |
87 | #define __HYPERCALL "call hypercall_page+%c[offset]" |
88 | #define __HYPERCALL_ENTRY(x) \ | |
89 | [offset] "i" (__HYPERVISOR_##x * sizeof(hypercall_page[0])) | |
90 | ||
91 | #ifdef CONFIG_X86_32 | |
92 | #define __HYPERCALL_RETREG "eax" | |
93 | #define __HYPERCALL_ARG1REG "ebx" | |
94 | #define __HYPERCALL_ARG2REG "ecx" | |
95 | #define __HYPERCALL_ARG3REG "edx" | |
96 | #define __HYPERCALL_ARG4REG "esi" | |
97 | #define __HYPERCALL_ARG5REG "edi" | |
98 | #else | |
99 | #define __HYPERCALL_RETREG "rax" | |
100 | #define __HYPERCALL_ARG1REG "rdi" | |
101 | #define __HYPERCALL_ARG2REG "rsi" | |
102 | #define __HYPERCALL_ARG3REG "rdx" | |
103 | #define __HYPERCALL_ARG4REG "r10" | |
104 | #define __HYPERCALL_ARG5REG "r8" | |
105 | #endif | |
106 | ||
107 | #define __HYPERCALL_DECLS \ | |
108 | register unsigned long __res asm(__HYPERCALL_RETREG); \ | |
109 | register unsigned long __arg1 asm(__HYPERCALL_ARG1REG) = __arg1; \ | |
110 | register unsigned long __arg2 asm(__HYPERCALL_ARG2REG) = __arg2; \ | |
111 | register unsigned long __arg3 asm(__HYPERCALL_ARG3REG) = __arg3; \ | |
112 | register unsigned long __arg4 asm(__HYPERCALL_ARG4REG) = __arg4; \ | |
113 | register unsigned long __arg5 asm(__HYPERCALL_ARG5REG) = __arg5; | |
114 | ||
115 | #define __HYPERCALL_0PARAM "=r" (__res) | |
116 | #define __HYPERCALL_1PARAM __HYPERCALL_0PARAM, "+r" (__arg1) | |
117 | #define __HYPERCALL_2PARAM __HYPERCALL_1PARAM, "+r" (__arg2) | |
118 | #define __HYPERCALL_3PARAM __HYPERCALL_2PARAM, "+r" (__arg3) | |
119 | #define __HYPERCALL_4PARAM __HYPERCALL_3PARAM, "+r" (__arg4) | |
120 | #define __HYPERCALL_5PARAM __HYPERCALL_4PARAM, "+r" (__arg5) | |
121 | ||
122 | #define __HYPERCALL_0ARG() | |
123 | #define __HYPERCALL_1ARG(a1) \ | |
124 | __HYPERCALL_0ARG() __arg1 = (unsigned long)(a1); | |
125 | #define __HYPERCALL_2ARG(a1,a2) \ | |
126 | __HYPERCALL_1ARG(a1) __arg2 = (unsigned long)(a2); | |
127 | #define __HYPERCALL_3ARG(a1,a2,a3) \ | |
128 | __HYPERCALL_2ARG(a1,a2) __arg3 = (unsigned long)(a3); | |
129 | #define __HYPERCALL_4ARG(a1,a2,a3,a4) \ | |
130 | __HYPERCALL_3ARG(a1,a2,a3) __arg4 = (unsigned long)(a4); | |
131 | #define __HYPERCALL_5ARG(a1,a2,a3,a4,a5) \ | |
132 | __HYPERCALL_4ARG(a1,a2,a3,a4) __arg5 = (unsigned long)(a5); | |
133 | ||
134 | #define __HYPERCALL_CLOBBER5 "memory" | |
135 | #define __HYPERCALL_CLOBBER4 __HYPERCALL_CLOBBER5, __HYPERCALL_ARG5REG | |
136 | #define __HYPERCALL_CLOBBER3 __HYPERCALL_CLOBBER4, __HYPERCALL_ARG4REG | |
137 | #define __HYPERCALL_CLOBBER2 __HYPERCALL_CLOBBER3, __HYPERCALL_ARG3REG | |
138 | #define __HYPERCALL_CLOBBER1 __HYPERCALL_CLOBBER2, __HYPERCALL_ARG2REG | |
139 | #define __HYPERCALL_CLOBBER0 __HYPERCALL_CLOBBER1, __HYPERCALL_ARG1REG | |
140 | ||
a42089dd JF |
141 | #define _hypercall0(type, name) \ |
142 | ({ \ | |
e7435902 JF |
143 | __HYPERCALL_DECLS; \ |
144 | __HYPERCALL_0ARG(); \ | |
145 | asm volatile (__HYPERCALL \ | |
146 | : __HYPERCALL_0PARAM \ | |
147 | : __HYPERCALL_ENTRY(name) \ | |
148 | : __HYPERCALL_CLOBBER0); \ | |
a42089dd JF |
149 | (type)__res; \ |
150 | }) | |
151 | ||
152 | #define _hypercall1(type, name, a1) \ | |
153 | ({ \ | |
e7435902 JF |
154 | __HYPERCALL_DECLS; \ |
155 | __HYPERCALL_1ARG(a1); \ | |
156 | asm volatile (__HYPERCALL \ | |
157 | : __HYPERCALL_1PARAM \ | |
158 | : __HYPERCALL_ENTRY(name) \ | |
159 | : __HYPERCALL_CLOBBER1); \ | |
a42089dd JF |
160 | (type)__res; \ |
161 | }) | |
162 | ||
163 | #define _hypercall2(type, name, a1, a2) \ | |
164 | ({ \ | |
e7435902 JF |
165 | __HYPERCALL_DECLS; \ |
166 | __HYPERCALL_2ARG(a1, a2); \ | |
167 | asm volatile (__HYPERCALL \ | |
168 | : __HYPERCALL_2PARAM \ | |
169 | : __HYPERCALL_ENTRY(name) \ | |
170 | : __HYPERCALL_CLOBBER2); \ | |
a42089dd JF |
171 | (type)__res; \ |
172 | }) | |
173 | ||
174 | #define _hypercall3(type, name, a1, a2, a3) \ | |
175 | ({ \ | |
e7435902 JF |
176 | __HYPERCALL_DECLS; \ |
177 | __HYPERCALL_3ARG(a1, a2, a3); \ | |
178 | asm volatile (__HYPERCALL \ | |
179 | : __HYPERCALL_3PARAM \ | |
180 | : __HYPERCALL_ENTRY(name) \ | |
181 | : __HYPERCALL_CLOBBER3); \ | |
a42089dd JF |
182 | (type)__res; \ |
183 | }) | |
184 | ||
185 | #define _hypercall4(type, name, a1, a2, a3, a4) \ | |
186 | ({ \ | |
e7435902 JF |
187 | __HYPERCALL_DECLS; \ |
188 | __HYPERCALL_4ARG(a1, a2, a3, a4); \ | |
189 | asm volatile (__HYPERCALL \ | |
190 | : __HYPERCALL_4PARAM \ | |
191 | : __HYPERCALL_ENTRY(name) \ | |
192 | : __HYPERCALL_CLOBBER4); \ | |
a42089dd JF |
193 | (type)__res; \ |
194 | }) | |
195 | ||
196 | #define _hypercall5(type, name, a1, a2, a3, a4, a5) \ | |
197 | ({ \ | |
e7435902 JF |
198 | __HYPERCALL_DECLS; \ |
199 | __HYPERCALL_5ARG(a1, a2, a3, a4, a5); \ | |
200 | asm volatile (__HYPERCALL \ | |
201 | : __HYPERCALL_5PARAM \ | |
202 | : __HYPERCALL_ENTRY(name) \ | |
203 | : __HYPERCALL_CLOBBER5); \ | |
a42089dd JF |
204 | (type)__res; \ |
205 | }) | |
206 | ||
1246ae0b JF |
207 | static inline long |
208 | privcmd_call(unsigned call, | |
209 | unsigned long a1, unsigned long a2, | |
210 | unsigned long a3, unsigned long a4, | |
211 | unsigned long a5) | |
212 | { | |
213 | __HYPERCALL_DECLS; | |
214 | __HYPERCALL_5ARG(a1, a2, a3, a4, a5); | |
215 | ||
216 | asm volatile("call *%[call]" | |
217 | : __HYPERCALL_5PARAM | |
218 | : [call] "a" (&hypercall_page[call]) | |
219 | : __HYPERCALL_CLOBBER5); | |
220 | ||
221 | return (long)__res; | |
222 | } | |
223 | ||
a42089dd JF |
224 | static inline int |
225 | HYPERVISOR_set_trap_table(struct trap_info *table) | |
226 | { | |
227 | return _hypercall1(int, set_trap_table, table); | |
228 | } | |
229 | ||
230 | static inline int | |
231 | HYPERVISOR_mmu_update(struct mmu_update *req, int count, | |
232 | int *success_count, domid_t domid) | |
233 | { | |
234 | return _hypercall4(int, mmu_update, req, count, success_count, domid); | |
235 | } | |
236 | ||
237 | static inline int | |
238 | HYPERVISOR_mmuext_op(struct mmuext_op *op, int count, | |
239 | int *success_count, domid_t domid) | |
240 | { | |
241 | return _hypercall4(int, mmuext_op, op, count, success_count, domid); | |
242 | } | |
243 | ||
244 | static inline int | |
245 | HYPERVISOR_set_gdt(unsigned long *frame_list, int entries) | |
246 | { | |
247 | return _hypercall2(int, set_gdt, frame_list, entries); | |
248 | } | |
249 | ||
250 | static inline int | |
251 | HYPERVISOR_stack_switch(unsigned long ss, unsigned long esp) | |
252 | { | |
253 | return _hypercall2(int, stack_switch, ss, esp); | |
254 | } | |
255 | ||
88459d4c | 256 | #ifdef CONFIG_X86_32 |
a42089dd JF |
257 | static inline int |
258 | HYPERVISOR_set_callbacks(unsigned long event_selector, | |
259 | unsigned long event_address, | |
260 | unsigned long failsafe_selector, | |
261 | unsigned long failsafe_address) | |
262 | { | |
263 | return _hypercall4(int, set_callbacks, | |
264 | event_selector, event_address, | |
265 | failsafe_selector, failsafe_address); | |
266 | } | |
88459d4c JF |
267 | #else /* CONFIG_X86_64 */ |
268 | static inline int | |
269 | HYPERVISOR_set_callbacks(unsigned long event_address, | |
270 | unsigned long failsafe_address, | |
271 | unsigned long syscall_address) | |
272 | { | |
273 | return _hypercall3(int, set_callbacks, | |
274 | event_address, failsafe_address, | |
275 | syscall_address); | |
276 | } | |
277 | #endif /* CONFIG_X86_{32,64} */ | |
a42089dd | 278 | |
aa380c82 JF |
279 | static inline int |
280 | HYPERVISOR_callback_op(int cmd, void *arg) | |
281 | { | |
282 | return _hypercall2(int, callback_op, cmd, arg); | |
283 | } | |
284 | ||
a42089dd JF |
285 | static inline int |
286 | HYPERVISOR_fpu_taskswitch(int set) | |
287 | { | |
288 | return _hypercall1(int, fpu_taskswitch, set); | |
289 | } | |
290 | ||
291 | static inline int | |
349c709f | 292 | HYPERVISOR_sched_op(int cmd, void *arg) |
a42089dd | 293 | { |
a8b74583 | 294 | return _hypercall2(int, sched_op, cmd, arg); |
a42089dd JF |
295 | } |
296 | ||
297 | static inline long | |
298 | HYPERVISOR_set_timer_op(u64 timeout) | |
299 | { | |
300 | unsigned long timeout_hi = (unsigned long)(timeout>>32); | |
301 | unsigned long timeout_lo = (unsigned long)timeout; | |
302 | return _hypercall2(long, set_timer_op, timeout_lo, timeout_hi); | |
303 | } | |
304 | ||
cef12ee5 LJ |
305 | static inline int |
306 | HYPERVISOR_mca(struct xen_mc *mc_op) | |
307 | { | |
308 | mc_op->interface_version = XEN_MCA_INTERFACE_VERSION; | |
309 | return _hypercall1(int, mca, mc_op); | |
310 | } | |
311 | ||
eec07a9e JF |
312 | static inline int |
313 | HYPERVISOR_dom0_op(struct xen_platform_op *platform_op) | |
314 | { | |
315 | platform_op->interface_version = XENPF_INTERFACE_VERSION; | |
316 | return _hypercall1(int, dom0_op, platform_op); | |
317 | } | |
318 | ||
a42089dd JF |
319 | static inline int |
320 | HYPERVISOR_set_debugreg(int reg, unsigned long value) | |
321 | { | |
322 | return _hypercall2(int, set_debugreg, reg, value); | |
323 | } | |
324 | ||
325 | static inline unsigned long | |
326 | HYPERVISOR_get_debugreg(int reg) | |
327 | { | |
328 | return _hypercall1(unsigned long, get_debugreg, reg); | |
329 | } | |
330 | ||
331 | static inline int | |
332 | HYPERVISOR_update_descriptor(u64 ma, u64 desc) | |
333 | { | |
6a5c05f0 JB |
334 | if (sizeof(u64) == sizeof(long)) |
335 | return _hypercall2(int, update_descriptor, ma, desc); | |
a42089dd JF |
336 | return _hypercall4(int, update_descriptor, ma, ma>>32, desc, desc>>32); |
337 | } | |
338 | ||
339 | static inline int | |
340 | HYPERVISOR_memory_op(unsigned int cmd, void *arg) | |
341 | { | |
342 | return _hypercall2(int, memory_op, cmd, arg); | |
343 | } | |
344 | ||
345 | static inline int | |
346 | HYPERVISOR_multicall(void *call_list, int nr_calls) | |
347 | { | |
348 | return _hypercall2(int, multicall, call_list, nr_calls); | |
349 | } | |
350 | ||
351 | static inline int | |
352 | HYPERVISOR_update_va_mapping(unsigned long va, pte_t new_val, | |
353 | unsigned long flags) | |
354 | { | |
ca15f20f JF |
355 | if (sizeof(new_val) == sizeof(long)) |
356 | return _hypercall3(int, update_va_mapping, va, | |
357 | new_val.pte, flags); | |
358 | else | |
359 | return _hypercall4(int, update_va_mapping, va, | |
360 | new_val.pte, new_val.pte >> 32, flags); | |
a42089dd | 361 | } |
cf47a83f | 362 | extern int __must_check xen_event_channel_op_compat(int, void *); |
a42089dd JF |
363 | |
364 | static inline int | |
365 | HYPERVISOR_event_channel_op(int cmd, void *arg) | |
366 | { | |
367 | int rc = _hypercall2(int, event_channel_op, cmd, arg); | |
cf47a83f JB |
368 | if (unlikely(rc == -ENOSYS)) |
369 | rc = xen_event_channel_op_compat(cmd, arg); | |
a42089dd JF |
370 | return rc; |
371 | } | |
372 | ||
373 | static inline int | |
374 | HYPERVISOR_xen_version(int cmd, void *arg) | |
375 | { | |
376 | return _hypercall2(int, xen_version, cmd, arg); | |
377 | } | |
378 | ||
379 | static inline int | |
380 | HYPERVISOR_console_io(int cmd, int count, char *str) | |
381 | { | |
382 | return _hypercall3(int, console_io, cmd, count, str); | |
383 | } | |
384 | ||
cf47a83f JB |
385 | extern int __must_check HYPERVISOR_physdev_op_compat(int, void *); |
386 | ||
a42089dd JF |
387 | static inline int |
388 | HYPERVISOR_physdev_op(int cmd, void *arg) | |
389 | { | |
390 | int rc = _hypercall2(int, physdev_op, cmd, arg); | |
cf47a83f JB |
391 | if (unlikely(rc == -ENOSYS)) |
392 | rc = HYPERVISOR_physdev_op_compat(cmd, arg); | |
a42089dd JF |
393 | return rc; |
394 | } | |
395 | ||
396 | static inline int | |
397 | HYPERVISOR_grant_table_op(unsigned int cmd, void *uop, unsigned int count) | |
398 | { | |
399 | return _hypercall3(int, grant_table_op, cmd, uop, count); | |
400 | } | |
401 | ||
402 | static inline int | |
403 | HYPERVISOR_update_va_mapping_otherdomain(unsigned long va, pte_t new_val, | |
404 | unsigned long flags, domid_t domid) | |
405 | { | |
ca15f20f JF |
406 | if (sizeof(new_val) == sizeof(long)) |
407 | return _hypercall4(int, update_va_mapping_otherdomain, va, | |
408 | new_val.pte, flags, domid); | |
409 | else | |
410 | return _hypercall5(int, update_va_mapping_otherdomain, va, | |
411 | new_val.pte, new_val.pte >> 32, | |
412 | flags, domid); | |
a42089dd JF |
413 | } |
414 | ||
415 | static inline int | |
416 | HYPERVISOR_vm_assist(unsigned int cmd, unsigned int type) | |
417 | { | |
418 | return _hypercall2(int, vm_assist, cmd, type); | |
419 | } | |
420 | ||
421 | static inline int | |
422 | HYPERVISOR_vcpu_op(int cmd, int vcpuid, void *extra_args) | |
423 | { | |
424 | return _hypercall3(int, vcpu_op, cmd, vcpuid, extra_args); | |
425 | } | |
426 | ||
45eb0d88 EH |
427 | #ifdef CONFIG_X86_64 |
428 | static inline int | |
429 | HYPERVISOR_set_segment_base(int reg, unsigned long value) | |
430 | { | |
431 | return _hypercall2(int, set_segment_base, reg, value); | |
432 | } | |
433 | #endif | |
434 | ||
a42089dd | 435 | static inline int |
8e15597f | 436 | HYPERVISOR_suspend(unsigned long start_info_mfn) |
a42089dd | 437 | { |
8e15597f IC |
438 | struct sched_shutdown r = { .reason = SHUTDOWN_suspend }; |
439 | ||
440 | /* | |
441 | * For a PV guest the tools require that the start_info mfn be | |
442 | * present in rdx/edx when the hypercall is made. Per the | |
443 | * hypercall calling convention this is the third hypercall | |
444 | * argument, which is start_info_mfn here. | |
445 | */ | |
a8b74583 | 446 | return _hypercall3(int, sched_op, SCHEDOP_shutdown, &r, start_info_mfn); |
a42089dd JF |
447 | } |
448 | ||
449 | static inline int | |
450 | HYPERVISOR_nmi_op(unsigned long op, unsigned long arg) | |
451 | { | |
452 | return _hypercall2(int, nmi_op, op, arg); | |
453 | } | |
454 | ||
18f19aa6 JF |
455 | static inline unsigned long __must_check |
456 | HYPERVISOR_hvm_op(int op, void *arg) | |
457 | { | |
458 | return _hypercall2(unsigned long, hvm_op, op, arg); | |
459 | } | |
460 | ||
5bc20fc5 DM |
461 | static inline int |
462 | HYPERVISOR_tmem_op( | |
463 | struct tmem_op *op) | |
464 | { | |
465 | return _hypercall1(int, tmem_op, op); | |
466 | } | |
467 | ||
7b1333aa JF |
468 | static inline void |
469 | MULTI_fpu_taskswitch(struct multicall_entry *mcl, int set) | |
470 | { | |
471 | mcl->op = __HYPERVISOR_fpu_taskswitch; | |
472 | mcl->args[0] = set; | |
c796f213 JF |
473 | |
474 | trace_xen_mc_entry(mcl, 1); | |
7b1333aa JF |
475 | } |
476 | ||
a42089dd JF |
477 | static inline void |
478 | MULTI_update_va_mapping(struct multicall_entry *mcl, unsigned long va, | |
479 | pte_t new_val, unsigned long flags) | |
480 | { | |
481 | mcl->op = __HYPERVISOR_update_va_mapping; | |
482 | mcl->args[0] = va; | |
ca15f20f JF |
483 | if (sizeof(new_val) == sizeof(long)) { |
484 | mcl->args[1] = new_val.pte; | |
485 | mcl->args[2] = flags; | |
486 | } else { | |
487 | mcl->args[1] = new_val.pte; | |
488 | mcl->args[2] = new_val.pte >> 32; | |
489 | mcl->args[3] = flags; | |
490 | } | |
c796f213 JF |
491 | |
492 | trace_xen_mc_entry(mcl, sizeof(new_val) == sizeof(long) ? 3 : 4); | |
a42089dd JF |
493 | } |
494 | ||
495 | static inline void | |
496 | MULTI_grant_table_op(struct multicall_entry *mcl, unsigned int cmd, | |
497 | void *uop, unsigned int count) | |
498 | { | |
499 | mcl->op = __HYPERVISOR_grant_table_op; | |
500 | mcl->args[0] = cmd; | |
501 | mcl->args[1] = (unsigned long)uop; | |
502 | mcl->args[2] = count; | |
c796f213 JF |
503 | |
504 | trace_xen_mc_entry(mcl, 3); | |
a42089dd JF |
505 | } |
506 | ||
507 | static inline void | |
508 | MULTI_update_va_mapping_otherdomain(struct multicall_entry *mcl, unsigned long va, | |
509 | pte_t new_val, unsigned long flags, | |
510 | domid_t domid) | |
511 | { | |
512 | mcl->op = __HYPERVISOR_update_va_mapping_otherdomain; | |
513 | mcl->args[0] = va; | |
ca15f20f JF |
514 | if (sizeof(new_val) == sizeof(long)) { |
515 | mcl->args[1] = new_val.pte; | |
516 | mcl->args[2] = flags; | |
517 | mcl->args[3] = domid; | |
518 | } else { | |
519 | mcl->args[1] = new_val.pte; | |
520 | mcl->args[2] = new_val.pte >> 32; | |
521 | mcl->args[3] = flags; | |
522 | mcl->args[4] = domid; | |
523 | } | |
c796f213 JF |
524 | |
525 | trace_xen_mc_entry(mcl, sizeof(new_val) == sizeof(long) ? 4 : 5); | |
a42089dd JF |
526 | } |
527 | ||
528 | static inline void | |
529 | MULTI_update_descriptor(struct multicall_entry *mcl, u64 maddr, | |
530 | struct desc_struct desc) | |
531 | { | |
532 | mcl->op = __HYPERVISOR_update_descriptor; | |
c05f1cfa JF |
533 | if (sizeof(maddr) == sizeof(long)) { |
534 | mcl->args[0] = maddr; | |
535 | mcl->args[1] = *(unsigned long *)&desc; | |
536 | } else { | |
537 | mcl->args[0] = maddr; | |
538 | mcl->args[1] = maddr >> 32; | |
539 | mcl->args[2] = desc.a; | |
540 | mcl->args[3] = desc.b; | |
541 | } | |
c796f213 JF |
542 | |
543 | trace_xen_mc_entry(mcl, sizeof(maddr) == sizeof(long) ? 2 : 4); | |
a42089dd JF |
544 | } |
545 | ||
546 | static inline void | |
547 | MULTI_memory_op(struct multicall_entry *mcl, unsigned int cmd, void *arg) | |
548 | { | |
549 | mcl->op = __HYPERVISOR_memory_op; | |
550 | mcl->args[0] = cmd; | |
551 | mcl->args[1] = (unsigned long)arg; | |
c796f213 JF |
552 | |
553 | trace_xen_mc_entry(mcl, 2); | |
a42089dd JF |
554 | } |
555 | ||
556 | static inline void | |
557 | MULTI_mmu_update(struct multicall_entry *mcl, struct mmu_update *req, | |
558 | int count, int *success_count, domid_t domid) | |
559 | { | |
560 | mcl->op = __HYPERVISOR_mmu_update; | |
561 | mcl->args[0] = (unsigned long)req; | |
562 | mcl->args[1] = count; | |
563 | mcl->args[2] = (unsigned long)success_count; | |
564 | mcl->args[3] = domid; | |
c796f213 JF |
565 | |
566 | trace_xen_mc_entry(mcl, 4); | |
a42089dd JF |
567 | } |
568 | ||
569 | static inline void | |
570 | MULTI_mmuext_op(struct multicall_entry *mcl, struct mmuext_op *op, int count, | |
571 | int *success_count, domid_t domid) | |
572 | { | |
573 | mcl->op = __HYPERVISOR_mmuext_op; | |
574 | mcl->args[0] = (unsigned long)op; | |
575 | mcl->args[1] = count; | |
576 | mcl->args[2] = (unsigned long)success_count; | |
577 | mcl->args[3] = domid; | |
c796f213 JF |
578 | |
579 | trace_xen_mc_entry(mcl, 4); | |
a42089dd | 580 | } |
5ead97c8 JF |
581 | |
582 | static inline void | |
583 | MULTI_set_gdt(struct multicall_entry *mcl, unsigned long *frames, int entries) | |
584 | { | |
585 | mcl->op = __HYPERVISOR_set_gdt; | |
586 | mcl->args[0] = (unsigned long)frames; | |
587 | mcl->args[1] = entries; | |
c796f213 JF |
588 | |
589 | trace_xen_mc_entry(mcl, 2); | |
5ead97c8 JF |
590 | } |
591 | ||
592 | static inline void | |
593 | MULTI_stack_switch(struct multicall_entry *mcl, | |
594 | unsigned long ss, unsigned long esp) | |
595 | { | |
596 | mcl->op = __HYPERVISOR_stack_switch; | |
597 | mcl->args[0] = ss; | |
598 | mcl->args[1] = esp; | |
c796f213 JF |
599 | |
600 | trace_xen_mc_entry(mcl, 2); | |
5ead97c8 JF |
601 | } |
602 | ||
05e4d316 | 603 | #endif /* _ASM_X86_XEN_HYPERCALL_H */ |