1 | /* $NetBSD: hypercalls.h,v 1.8 2011/12/07 16:01:39 cegger 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 *) |
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 | #include <xen/xen-public/arch-x86/xen-mca.h> |
403 | |
404 | static inline int |
405 | HYPERVISOR_machine_check(struct xen_mc *mc) |
406 | { |
407 | mc->interface_version = XEN_MCA_INTERFACE_VERSION; |
408 | return _hypercall1(int, mca, mc); |
409 | } |
410 | |
411 | static inline int |
412 | HYPERVISOR_sysctl(void *sysctl) |
413 | { |
414 | return _hypercall1(int, sysctl, sysctl); |
415 | } |
416 | |
417 | #endif /* __HYPERCALL_H__ */ |
418 | |