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
122static inline int
123HYPERVISOR_set_trap_table(
124 trap_info_t *table)
125{
126 return _hypercall1(int, set_trap_table, table);
127}
128
129static inline int
130HYPERVISOR_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
136static inline int
137HYPERVISOR_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
143static inline int
144HYPERVISOR_set_gdt(
145 unsigned long *frame_list, int entries)
146{
147 return _hypercall2(int, set_gdt, frame_list, entries);
148}
149
150static inline int
151HYPERVISOR_stack_switch(
152 unsigned long ss, unsigned long esp)
153{
154 return _hypercall2(int, stack_switch, ss, esp);
155}
156
157static inline int
158HYPERVISOR_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
166static inline int
167HYPERVISOR_fpu_taskswitch(
168 int set)
169{
170 return _hypercall1(int, fpu_taskswitch, set);
171}
172
173static inline int
174HYPERVISOR_sched_op_compat(
175 int cmd, unsigned long arg)
176{
177 return _hypercall2(int, sched_op_compat, cmd, arg);
178}
179
180static inline int
181HYPERVISOR_sched_op(
182 int cmd, void *arg)
183{
184 return _hypercall2(int, sched_op, cmd, arg);
185}
186
187static inline long
188HYPERVISOR_set_timer_op(
189 u64 timeout)
190{
191 return _hypercall1(long, set_timer_op, timeout);
192}
193
194static inline int
195HYPERVISOR_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
202static inline int
203HYPERVISOR_set_debugreg(
204 int reg, unsigned long value)
205{
206 return _hypercall2(int, set_debugreg, reg, value);
207}
208
209static inline unsigned long
210HYPERVISOR_get_debugreg(
211 int reg)
212{
213 return _hypercall1(unsigned long, get_debugreg, reg);
214}
215
216static inline int
217HYPERVISOR_update_descriptor(
218 unsigned long ma, unsigned long word)
219{
220 return _hypercall2(int, update_descriptor, ma, word);
221}
222
223static inline int
224HYPERVISOR_memory_op(
225 unsigned int cmd, void *arg)
226{
227 return _hypercall2(int, memory_op, cmd, arg);
228}
229
230static inline int
231HYPERVISOR_multicall(
232 multicall_entry_t *call_list, int nr_calls)
233{
234 return _hypercall2(int, multicall, call_list, nr_calls);
235}
236
237static inline int
238HYPERVISOR_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
244static inline int
245HYPERVISOR_event_channel_op(void *op)
246{
247 return _hypercall1(int, event_channel_op, op);
248}
249
250static inline int
251HYPERVISOR_acm_op(
252 int cmd, void *arg)
253{
254 return _hypercall2(int, acm_op, cmd, arg);
255}
256
257static inline int
258HYPERVISOR_xen_version(
259 int cmd, void *arg)
260{
261 return _hypercall2(int, xen_version, cmd, arg);
262}
263
264static inline int
265HYPERVISOR_console_io(
266 int cmd, int count, char *str)
267{
268 return _hypercall3(int, console_io, cmd, count, str);
269}
270
271static inline int
272HYPERVISOR_physdev_op(void *op)
273{
274 return _hypercall1(int, physdev_op_compat, op);
275}
276
277static inline int
278HYPERVISOR_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
284static inline int
285HYPERVISOR_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
293static inline int
294HYPERVISOR_vm_assist(
295 unsigned int cmd, unsigned int type)
296{
297 return _hypercall2(int, vm_assist, cmd, type);
298}
299
300static inline int
301HYPERVISOR_vcpu_op(
302 int cmd, int vcpuid, void *extra_args)
303{
304 return _hypercall3(int, vcpu_op, cmd, vcpuid, extra_args);
305}
306
307static inline int
308HYPERVISOR_set_segment_base(
309 int reg, unsigned long value)
310{
311 return _hypercall2(int, set_segment_base, reg, value);
312}
313
314static inline int
315HYPERVISOR_suspend(
316 unsigned long srec)
317{
318 return _hypercall3(int, sched_op, SCHEDOP_shutdown,
319 SHUTDOWN_suspend, srec);
320}
321
322static inline long
323HYPERVISOR_yield(
324 void)
325{
326 return _hypercall2(int, sched_op, SCHEDOP_yield, 0);
327}
328
329static inline long
330HYPERVISOR_block(
331 void)
332{
333 return _hypercall2(int, sched_op, SCHEDOP_block, 0);
334}
335
336static inline long
337HYPERVISOR_shutdown(
338 void)
339{
340 return _hypercall2(int, sched_op, SCHEDOP_shutdown, SHUTDOWN_poweroff);
341}
342
343static inline long
344HYPERVISOR_crash(
345 void)
346{
347 return _hypercall2(int, sched_op, SCHEDOP_shutdown, SHUTDOWN_crash);
348}
349
350static inline long
351HYPERVISOR_reboot(
352 void)
353{
354 return _hypercall2(int, sched_op, SCHEDOP_shutdown, SHUTDOWN_reboot);
355}
356
357static inline int
358HYPERVISOR_nmi_op(
359 unsigned long op, void *arg)
360{
361 return _hypercall2(int, nmi_op, op, arg);
362}
363
364static inline unsigned long
365HYPERVISOR_hvm_op(
366 int op, void *arg)
367{
368 return _hypercall2(unsigned long, hvm_op, op, arg);
369}
370
371static inline int
372HYPERVISOR_callback_op(
373 int cmd, void *arg)
374{
375 return _hypercall2(int, callback_op, cmd, arg);
376}
377
378static inline int
379HYPERVISOR_xenoprof_op(
380 int op, void *arg)
381{
382 return _hypercall2(int, xenoprof_op, op, arg);
383}
384
385static inline int
386HYPERVISOR_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
393static inline int
394HYPERVISOR_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
404static inline int
405HYPERVISOR_machine_check(struct xen_mc *mc)
406{
407 mc->interface_version = XEN_MCA_INTERFACE_VERSION;
408 return _hypercall1(int, mca, mc);
409}
410
411static inline int
412HYPERVISOR_sysctl(void *sysctl)
413{
414 return _hypercall1(int, sysctl, sysctl);
415}
416
417#endif /* __HYPERCALL_H__ */
418