blob: 4c20dd333412db5b367d0625e9b7cf69a7891493 [file] [log] [blame]
Jeremy Fitzhardingea42089d2007-07-17 18:37:04 -07001/******************************************************************************
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
H. Peter Anvin05e4d312008-10-23 00:01:39 -070033#ifndef _ASM_X86_XEN_HYPERCALL_H
34#define _ASM_X86_XEN_HYPERCALL_H
Jeremy Fitzhardingea42089d2007-07-17 18:37:04 -070035
Jeremy Fitzhardingeecbf29c2008-12-16 12:37:07 -080036#include <linux/kernel.h>
37#include <linux/spinlock.h>
Jeremy Fitzhardingea42089d2007-07-17 18:37:04 -070038#include <linux/errno.h>
39#include <linux/string.h>
Jeremy Fitzhardingeecbf29c2008-12-16 12:37:07 -080040#include <linux/types.h>
41
Jeremy Fitzhardingec796f212010-12-16 14:33:27 -080042#include <trace/events/xen.h>
43
Jeremy Fitzhardingeecbf29c2008-12-16 12:37:07 -080044#include <asm/page.h>
45#include <asm/pgtable.h>
Jeremy Fitzhardingea42089d2007-07-17 18:37:04 -070046
47#include <xen/interface/xen.h>
48#include <xen/interface/sched.h>
49#include <xen/interface/physdev.h>
Jeremy Fitzhardingeeec07a92011-09-23 11:44:17 -070050#include <xen/interface/platform.h>
Liu, Jinsongcef12ee2012-06-07 19:56:51 +080051#include <xen/interface/xen-mca.h>
Jeremy Fitzhardingea42089d2007-07-17 18:37:04 -070052
Jeremy Fitzhardingee7435902008-07-08 15:06:37 -070053/*
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
Jeremy Fitzhardingea42089d2007-07-17 18:37:04 -070085extern struct { char _entry[32]; } hypercall_page[];
86
Jeremy Fitzhardingee7435902008-07-08 15:06:37 -070087#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
Jeremy Fitzhardingea42089d2007-07-17 18:37:04 -0700141#define _hypercall0(type, name) \
142({ \
Jeremy Fitzhardingee7435902008-07-08 15:06:37 -0700143 __HYPERCALL_DECLS; \
144 __HYPERCALL_0ARG(); \
145 asm volatile (__HYPERCALL \
146 : __HYPERCALL_0PARAM \
147 : __HYPERCALL_ENTRY(name) \
148 : __HYPERCALL_CLOBBER0); \
Jeremy Fitzhardingea42089d2007-07-17 18:37:04 -0700149 (type)__res; \
150})
151
152#define _hypercall1(type, name, a1) \
153({ \
Jeremy Fitzhardingee7435902008-07-08 15:06:37 -0700154 __HYPERCALL_DECLS; \
155 __HYPERCALL_1ARG(a1); \
156 asm volatile (__HYPERCALL \
157 : __HYPERCALL_1PARAM \
158 : __HYPERCALL_ENTRY(name) \
159 : __HYPERCALL_CLOBBER1); \
Jeremy Fitzhardingea42089d2007-07-17 18:37:04 -0700160 (type)__res; \
161})
162
163#define _hypercall2(type, name, a1, a2) \
164({ \
Jeremy Fitzhardingee7435902008-07-08 15:06:37 -0700165 __HYPERCALL_DECLS; \
166 __HYPERCALL_2ARG(a1, a2); \
167 asm volatile (__HYPERCALL \
168 : __HYPERCALL_2PARAM \
169 : __HYPERCALL_ENTRY(name) \
170 : __HYPERCALL_CLOBBER2); \
Jeremy Fitzhardingea42089d2007-07-17 18:37:04 -0700171 (type)__res; \
172})
173
174#define _hypercall3(type, name, a1, a2, a3) \
175({ \
Jeremy Fitzhardingee7435902008-07-08 15:06:37 -0700176 __HYPERCALL_DECLS; \
177 __HYPERCALL_3ARG(a1, a2, a3); \
178 asm volatile (__HYPERCALL \
179 : __HYPERCALL_3PARAM \
180 : __HYPERCALL_ENTRY(name) \
181 : __HYPERCALL_CLOBBER3); \
Jeremy Fitzhardingea42089d2007-07-17 18:37:04 -0700182 (type)__res; \
183})
184
185#define _hypercall4(type, name, a1, a2, a3, a4) \
186({ \
Jeremy Fitzhardingee7435902008-07-08 15:06:37 -0700187 __HYPERCALL_DECLS; \
188 __HYPERCALL_4ARG(a1, a2, a3, a4); \
189 asm volatile (__HYPERCALL \
190 : __HYPERCALL_4PARAM \
191 : __HYPERCALL_ENTRY(name) \
192 : __HYPERCALL_CLOBBER4); \
Jeremy Fitzhardingea42089d2007-07-17 18:37:04 -0700193 (type)__res; \
194})
195
196#define _hypercall5(type, name, a1, a2, a3, a4, a5) \
197({ \
Jeremy Fitzhardingee7435902008-07-08 15:06:37 -0700198 __HYPERCALL_DECLS; \
199 __HYPERCALL_5ARG(a1, a2, a3, a4, a5); \
200 asm volatile (__HYPERCALL \
201 : __HYPERCALL_5PARAM \
202 : __HYPERCALL_ENTRY(name) \
203 : __HYPERCALL_CLOBBER5); \
Jeremy Fitzhardingea42089d2007-07-17 18:37:04 -0700204 (type)__res; \
205})
206
Jeremy Fitzhardinge1246ae02009-02-09 12:05:49 -0800207static inline long
208privcmd_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
Jeremy Fitzhardingea42089d2007-07-17 18:37:04 -0700224static inline int
225HYPERVISOR_set_trap_table(struct trap_info *table)
226{
227 return _hypercall1(int, set_trap_table, table);
228}
229
230static inline int
231HYPERVISOR_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
237static inline int
238HYPERVISOR_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
244static inline int
245HYPERVISOR_set_gdt(unsigned long *frame_list, int entries)
246{
247 return _hypercall2(int, set_gdt, frame_list, entries);
248}
249
250static inline int
251HYPERVISOR_stack_switch(unsigned long ss, unsigned long esp)
252{
253 return _hypercall2(int, stack_switch, ss, esp);
254}
255
Jeremy Fitzhardinge88459d42008-07-08 15:07:02 -0700256#ifdef CONFIG_X86_32
Jeremy Fitzhardingea42089d2007-07-17 18:37:04 -0700257static inline int
258HYPERVISOR_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}
Jeremy Fitzhardinge88459d42008-07-08 15:07:02 -0700267#else /* CONFIG_X86_64 */
268static inline int
269HYPERVISOR_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} */
Jeremy Fitzhardingea42089d2007-07-17 18:37:04 -0700278
279static inline int
Jeremy Fitzhardingeaa380c82008-03-17 16:37:15 -0700280HYPERVISOR_callback_op(int cmd, void *arg)
281{
282 return _hypercall2(int, callback_op, cmd, arg);
283}
284
285static inline int
Jeremy Fitzhardingea42089d2007-07-17 18:37:04 -0700286HYPERVISOR_fpu_taskswitch(int set)
287{
288 return _hypercall1(int, fpu_taskswitch, set);
289}
290
291static inline int
Jeremy Fitzhardinge349c709f2008-05-26 23:31:02 +0100292HYPERVISOR_sched_op(int cmd, void *arg)
Jeremy Fitzhardingea42089d2007-07-17 18:37:04 -0700293{
Ian Campbella8b74582011-02-17 11:04:20 +0000294 return _hypercall2(int, sched_op, cmd, arg);
Jeremy Fitzhardingea42089d2007-07-17 18:37:04 -0700295}
296
297static inline long
298HYPERVISOR_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
305static inline int
Liu, Jinsongcef12ee2012-06-07 19:56:51 +0800306HYPERVISOR_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
312static inline int
Jeremy Fitzhardingeeec07a92011-09-23 11:44:17 -0700313HYPERVISOR_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
319static inline int
Jeremy Fitzhardingea42089d2007-07-17 18:37:04 -0700320HYPERVISOR_set_debugreg(int reg, unsigned long value)
321{
322 return _hypercall2(int, set_debugreg, reg, value);
323}
324
325static inline unsigned long
326HYPERVISOR_get_debugreg(int reg)
327{
328 return _hypercall1(unsigned long, get_debugreg, reg);
329}
330
331static inline int
332HYPERVISOR_update_descriptor(u64 ma, u64 desc)
333{
Jan Beulich6a5c05f2009-03-12 11:54:54 +0000334 if (sizeof(u64) == sizeof(long))
335 return _hypercall2(int, update_descriptor, ma, desc);
Jeremy Fitzhardingea42089d2007-07-17 18:37:04 -0700336 return _hypercall4(int, update_descriptor, ma, ma>>32, desc, desc>>32);
337}
338
Juergen Gross24f775a2015-09-04 14:50:33 +0200339static inline long
Jeremy Fitzhardingea42089d2007-07-17 18:37:04 -0700340HYPERVISOR_memory_op(unsigned int cmd, void *arg)
341{
Juergen Gross24f775a2015-09-04 14:50:33 +0200342 return _hypercall2(long, memory_op, cmd, arg);
Jeremy Fitzhardingea42089d2007-07-17 18:37:04 -0700343}
344
345static inline int
Ian Campbell5e407042014-04-17 13:57:37 +0100346HYPERVISOR_multicall(void *call_list, uint32_t nr_calls)
Jeremy Fitzhardingea42089d2007-07-17 18:37:04 -0700347{
348 return _hypercall2(int, multicall, call_list, nr_calls);
349}
350
351static inline int
352HYPERVISOR_update_va_mapping(unsigned long va, pte_t new_val,
353 unsigned long flags)
354{
Jeremy Fitzhardingeca15f202008-07-08 15:06:36 -0700355 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);
Jeremy Fitzhardingea42089d2007-07-17 18:37:04 -0700361}
Jan Beulichcf47a832012-10-19 15:25:37 -0400362extern int __must_check xen_event_channel_op_compat(int, void *);
Jeremy Fitzhardingea42089d2007-07-17 18:37:04 -0700363
364static inline int
365HYPERVISOR_event_channel_op(int cmd, void *arg)
366{
367 int rc = _hypercall2(int, event_channel_op, cmd, arg);
Jan Beulichcf47a832012-10-19 15:25:37 -0400368 if (unlikely(rc == -ENOSYS))
369 rc = xen_event_channel_op_compat(cmd, arg);
Jeremy Fitzhardingea42089d2007-07-17 18:37:04 -0700370 return rc;
371}
372
373static inline int
374HYPERVISOR_xen_version(int cmd, void *arg)
375{
376 return _hypercall2(int, xen_version, cmd, arg);
377}
378
379static inline int
380HYPERVISOR_console_io(int cmd, int count, char *str)
381{
382 return _hypercall3(int, console_io, cmd, count, str);
383}
384
Jan Beulich909b3fd2013-03-12 15:06:23 +0000385extern int __must_check xen_physdev_op_compat(int, void *);
Jan Beulichcf47a832012-10-19 15:25:37 -0400386
Jeremy Fitzhardingea42089d2007-07-17 18:37:04 -0700387static inline int
388HYPERVISOR_physdev_op(int cmd, void *arg)
389{
390 int rc = _hypercall2(int, physdev_op, cmd, arg);
Jan Beulichcf47a832012-10-19 15:25:37 -0400391 if (unlikely(rc == -ENOSYS))
Jan Beulich909b3fd2013-03-12 15:06:23 +0000392 rc = xen_physdev_op_compat(cmd, arg);
Jeremy Fitzhardingea42089d2007-07-17 18:37:04 -0700393 return rc;
394}
395
396static inline int
397HYPERVISOR_grant_table_op(unsigned int cmd, void *uop, unsigned int count)
398{
399 return _hypercall3(int, grant_table_op, cmd, uop, count);
400}
401
402static inline int
403HYPERVISOR_update_va_mapping_otherdomain(unsigned long va, pte_t new_val,
404 unsigned long flags, domid_t domid)
405{
Jeremy Fitzhardingeca15f202008-07-08 15:06:36 -0700406 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);
Jeremy Fitzhardingea42089d2007-07-17 18:37:04 -0700413}
414
415static inline int
416HYPERVISOR_vm_assist(unsigned int cmd, unsigned int type)
417{
418 return _hypercall2(int, vm_assist, cmd, type);
419}
420
421static inline int
422HYPERVISOR_vcpu_op(int cmd, int vcpuid, void *extra_args)
423{
424 return _hypercall3(int, vcpu_op, cmd, vcpuid, extra_args);
425}
426
Eduardo Habkost45eb0d82008-07-08 15:07:04 -0700427#ifdef CONFIG_X86_64
428static inline int
429HYPERVISOR_set_segment_base(int reg, unsigned long value)
430{
431 return _hypercall2(int, set_segment_base, reg, value);
432}
433#endif
434
Jeremy Fitzhardingea42089d2007-07-17 18:37:04 -0700435static inline int
Ian Campbell8e155972011-02-17 11:04:20 +0000436HYPERVISOR_suspend(unsigned long start_info_mfn)
Jeremy Fitzhardingea42089d2007-07-17 18:37:04 -0700437{
Ian Campbell8e155972011-02-17 11:04:20 +0000438 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 */
Ian Campbella8b74582011-02-17 11:04:20 +0000446 return _hypercall3(int, sched_op, SCHEDOP_shutdown, &r, start_info_mfn);
Jeremy Fitzhardingea42089d2007-07-17 18:37:04 -0700447}
448
449static inline int
450HYPERVISOR_nmi_op(unsigned long op, unsigned long arg)
451{
452 return _hypercall2(int, nmi_op, op, arg);
453}
454
Jeremy Fitzhardinge18f19aa2010-05-14 12:38:24 +0100455static inline unsigned long __must_check
456HYPERVISOR_hvm_op(int op, void *arg)
457{
458 return _hypercall2(unsigned long, hvm_op, op, arg);
459}
460
Dan Magenheimer5bc20fc2011-05-26 10:02:21 -0600461static inline int
462HYPERVISOR_tmem_op(
463 struct tmem_op *op)
464{
465 return _hypercall1(int, tmem_op, op);
466}
467
Boris Ostrovsky5f141542015-08-10 16:34:33 -0400468static inline int
469HYPERVISOR_xenpmu_op(unsigned int op, void *arg)
470{
471 return _hypercall2(int, xenpmu_op, op, arg);
472}
473
Jeremy Fitzhardingea42089d2007-07-17 18:37:04 -0700474static inline void
Jeremy Fitzhardinge7b1333a2008-05-26 23:31:01 +0100475MULTI_fpu_taskswitch(struct multicall_entry *mcl, int set)
476{
477 mcl->op = __HYPERVISOR_fpu_taskswitch;
478 mcl->args[0] = set;
Jeremy Fitzhardingec796f212010-12-16 14:33:27 -0800479
480 trace_xen_mc_entry(mcl, 1);
Jeremy Fitzhardinge7b1333a2008-05-26 23:31:01 +0100481}
482
483static inline void
Jeremy Fitzhardingea42089d2007-07-17 18:37:04 -0700484MULTI_update_va_mapping(struct multicall_entry *mcl, unsigned long va,
485 pte_t new_val, unsigned long flags)
486{
487 mcl->op = __HYPERVISOR_update_va_mapping;
488 mcl->args[0] = va;
Jeremy Fitzhardingeca15f202008-07-08 15:06:36 -0700489 if (sizeof(new_val) == sizeof(long)) {
490 mcl->args[1] = new_val.pte;
491 mcl->args[2] = flags;
492 } else {
493 mcl->args[1] = new_val.pte;
494 mcl->args[2] = new_val.pte >> 32;
495 mcl->args[3] = flags;
496 }
Jeremy Fitzhardingec796f212010-12-16 14:33:27 -0800497
498 trace_xen_mc_entry(mcl, sizeof(new_val) == sizeof(long) ? 3 : 4);
Jeremy Fitzhardingea42089d2007-07-17 18:37:04 -0700499}
500
501static inline void
502MULTI_grant_table_op(struct multicall_entry *mcl, unsigned int cmd,
503 void *uop, unsigned int count)
504{
505 mcl->op = __HYPERVISOR_grant_table_op;
506 mcl->args[0] = cmd;
507 mcl->args[1] = (unsigned long)uop;
508 mcl->args[2] = count;
Jeremy Fitzhardingec796f212010-12-16 14:33:27 -0800509
510 trace_xen_mc_entry(mcl, 3);
Jeremy Fitzhardingea42089d2007-07-17 18:37:04 -0700511}
512
513static inline void
514MULTI_update_va_mapping_otherdomain(struct multicall_entry *mcl, unsigned long va,
515 pte_t new_val, unsigned long flags,
516 domid_t domid)
517{
518 mcl->op = __HYPERVISOR_update_va_mapping_otherdomain;
519 mcl->args[0] = va;
Jeremy Fitzhardingeca15f202008-07-08 15:06:36 -0700520 if (sizeof(new_val) == sizeof(long)) {
521 mcl->args[1] = new_val.pte;
522 mcl->args[2] = flags;
523 mcl->args[3] = domid;
524 } else {
525 mcl->args[1] = new_val.pte;
526 mcl->args[2] = new_val.pte >> 32;
527 mcl->args[3] = flags;
528 mcl->args[4] = domid;
529 }
Jeremy Fitzhardingec796f212010-12-16 14:33:27 -0800530
531 trace_xen_mc_entry(mcl, sizeof(new_val) == sizeof(long) ? 4 : 5);
Jeremy Fitzhardingea42089d2007-07-17 18:37:04 -0700532}
533
534static inline void
535MULTI_update_descriptor(struct multicall_entry *mcl, u64 maddr,
536 struct desc_struct desc)
537{
538 mcl->op = __HYPERVISOR_update_descriptor;
Jeremy Fitzhardingec05f1cf2008-07-08 15:07:11 -0700539 if (sizeof(maddr) == sizeof(long)) {
540 mcl->args[0] = maddr;
541 mcl->args[1] = *(unsigned long *)&desc;
542 } else {
543 mcl->args[0] = maddr;
544 mcl->args[1] = maddr >> 32;
545 mcl->args[2] = desc.a;
546 mcl->args[3] = desc.b;
547 }
Jeremy Fitzhardingec796f212010-12-16 14:33:27 -0800548
549 trace_xen_mc_entry(mcl, sizeof(maddr) == sizeof(long) ? 2 : 4);
Jeremy Fitzhardingea42089d2007-07-17 18:37:04 -0700550}
551
552static inline void
553MULTI_memory_op(struct multicall_entry *mcl, unsigned int cmd, void *arg)
554{
555 mcl->op = __HYPERVISOR_memory_op;
556 mcl->args[0] = cmd;
557 mcl->args[1] = (unsigned long)arg;
Jeremy Fitzhardingec796f212010-12-16 14:33:27 -0800558
559 trace_xen_mc_entry(mcl, 2);
Jeremy Fitzhardingea42089d2007-07-17 18:37:04 -0700560}
561
562static inline void
563MULTI_mmu_update(struct multicall_entry *mcl, struct mmu_update *req,
564 int count, int *success_count, domid_t domid)
565{
566 mcl->op = __HYPERVISOR_mmu_update;
567 mcl->args[0] = (unsigned long)req;
568 mcl->args[1] = count;
569 mcl->args[2] = (unsigned long)success_count;
570 mcl->args[3] = domid;
Jeremy Fitzhardingec796f212010-12-16 14:33:27 -0800571
572 trace_xen_mc_entry(mcl, 4);
Jeremy Fitzhardingea42089d2007-07-17 18:37:04 -0700573}
574
575static inline void
576MULTI_mmuext_op(struct multicall_entry *mcl, struct mmuext_op *op, int count,
577 int *success_count, domid_t domid)
578{
579 mcl->op = __HYPERVISOR_mmuext_op;
580 mcl->args[0] = (unsigned long)op;
581 mcl->args[1] = count;
582 mcl->args[2] = (unsigned long)success_count;
583 mcl->args[3] = domid;
Jeremy Fitzhardingec796f212010-12-16 14:33:27 -0800584
585 trace_xen_mc_entry(mcl, 4);
Jeremy Fitzhardingea42089d2007-07-17 18:37:04 -0700586}
Jeremy Fitzhardinge5ead97c2007-07-17 18:37:04 -0700587
588static inline void
589MULTI_set_gdt(struct multicall_entry *mcl, unsigned long *frames, int entries)
590{
591 mcl->op = __HYPERVISOR_set_gdt;
592 mcl->args[0] = (unsigned long)frames;
593 mcl->args[1] = entries;
Jeremy Fitzhardingec796f212010-12-16 14:33:27 -0800594
595 trace_xen_mc_entry(mcl, 2);
Jeremy Fitzhardinge5ead97c2007-07-17 18:37:04 -0700596}
597
598static inline void
599MULTI_stack_switch(struct multicall_entry *mcl,
600 unsigned long ss, unsigned long esp)
601{
602 mcl->op = __HYPERVISOR_stack_switch;
603 mcl->args[0] = ss;
604 mcl->args[1] = esp;
Jeremy Fitzhardingec796f212010-12-16 14:33:27 -0800605
606 trace_xen_mc_entry(mcl, 2);
Jeremy Fitzhardinge5ead97c2007-07-17 18:37:04 -0700607}
608
H. Peter Anvin05e4d312008-10-23 00:01:39 -0700609#endif /* _ASM_X86_XEN_HYPERCALL_H */