source: mainline/kernel/arch/xen32/include/hypercall.h@ deaa22f

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since deaa22f was 7c5a8dd, checked in by Martin Decky <martin@…>, 19 years ago

xen32: proper virtual traps, domU asynchronous console
  • Property mode set to 100644
File size: 6.3 KB
RevLine 
[4965a846]1/*
2 * Copyright (C) 2006 Martin Decky
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * - The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#ifndef __xen32_HYPERCALL_H__
30#define __xen32_HYPERCALL_H__
31
32#include <arch/types.h>
[aecf79f]33#include <macros.h>
34
35
[c59dd1a2]36typedef uint16_t domid_t;
37
38
[7d3d641]39typedef struct {
40 uint8_t vector; /**< Exception vector */
41 uint8_t flags; /**< 0-3: privilege level; 4: clear event enable */
42 uint16_t cs; /**< Code selector */
[7c5a8dd]43 void *address; /**< Code offset */
[7d3d641]44} trap_info_t;
45
46
[7c5a8dd]47typedef struct {
48 evtchn_t port;
49} evtchn_send_t;
50
51typedef struct {
52 uint32_t cmd;
53 union {
54 evtchn_send_t send;
55 };
56} evtchn_op_t;
57
58
[7d3d641]59#define XEN_SET_TRAP_TABLE 0
[e12ccc5]60#define XEN_MMU_UPDATE 1
[7d3d641]61#define XEN_SET_CALLBACKS 4
[e12ccc5]62#define XEN_UPDATE_VA_MAPPING 14
[7c5a8dd]63#define XEN_EVENT_CHANNEL_OP 16
[5b23a82]64#define XEN_VERSION 17
[e12ccc5]65#define XEN_CONSOLE_IO 18
66#define XEN_VM_ASSIST 21
67#define XEN_MMUEXT_OP 26
[aecf79f]68
69
70/*
71 * Commands for XEN_CONSOLE_IO
72 */
73#define CONSOLE_IO_WRITE 0
74#define CONSOLE_IO_READ 1
75
[4965a846]76
[c59dd1a2]77#define MMUEXT_PIN_L1_TABLE 0
78#define MMUEXT_PIN_L2_TABLE 1
79#define MMUEXT_PIN_L3_TABLE 2
80#define MMUEXT_PIN_L4_TABLE 3
81#define MMUEXT_UNPIN_TABLE 4
82#define MMUEXT_NEW_BASEPTR 5
83#define MMUEXT_TLB_FLUSH_LOCAL 6
84#define MMUEXT_INVLPG_LOCAL 7
85#define MMUEXT_TLB_FLUSH_MULTI 8
86#define MMUEXT_INVLPG_MULTI 9
87#define MMUEXT_TLB_FLUSH_ALL 10
88#define MMUEXT_INVLPG_ALL 11
89#define MMUEXT_FLUSH_CACHE 12
90#define MMUEXT_SET_LDT 13
91#define MMUEXT_NEW_USER_BASEPTR 15
92
93
[7c5a8dd]94#define EVTCHNOP_SEND 4
95
96
[e12ccc5]97#define UVMF_NONE 0 /**< No flushing at all */
98#define UVMF_TLB_FLUSH 1 /**< Flush entire TLB(s) */
99#define UVMF_INVLPG 2 /**< Flush only one entry */
100#define UVMF_FLUSHTYPE_MASK 3
101#define UVMF_MULTI 0 /**< Flush subset of TLBs */
102#define UVMF_LOCAL 0 /**< Flush local TLB */
103#define UVMF_ALL (1 << 2) /**< Flush all TLBs */
104
105
106/*
107 * Commands to XEN_VM_ASSIST
108 */
109#define VMASST_CMD_ENABLE 0
110#define VMASST_CMD_DISABLE 1
111#define VMASST_TYPE_4GB_SEGMENTS 0
112#define VMASST_TYPE_4GB_SEGMENTS_NOTIFY 1
113#define VMASST_TYPE_WRITABLE_PAGETABLES 2
114
115
[c59dd1a2]116#define DOMID_SELF (0x7FF0U)
117#define DOMID_IO (0x7FF1U)
118
119
[5b23a82]120#define force_evtchn_callback() ((void) xen_version(0, 0))
121
[4965a846]122#define hypercall0(id) \
123 ({ \
124 unative_t ret; \
125 asm volatile ( \
126 "call hypercall_page + (" STRING(id) " * 32)\n" \
127 : "=a" (ret) \
128 : \
129 : "memory" \
130 ); \
131 ret; \
132 })
133
134#define hypercall1(id, p1) \
135 ({ \
136 unative_t ret, __ign1; \
137 asm volatile ( \
138 "call hypercall_page + (" STRING(id) " * 32)\n" \
139 : "=a" (ret), \
140 "=b" (__ign1) \
141 : "1" (p1) \
142 : "memory" \
143 ); \
144 ret; \
145 })
146
147#define hypercall2(id, p1, p2) \
148 ({ \
149 unative_t ret, __ign1, __ign2; \
150 asm volatile ( \
151 "call hypercall_page + (" STRING(id) " * 32)\n" \
152 : "=a" (ret), \
153 "=b" (__ign1), \
154 "=c" (__ign2) \
155 : "1" (p1), \
156 "2" (p2) \
157 : "memory" \
158 ); \
159 ret; \
160 })
161
162#define hypercall3(id, p1, p2, p3) \
163 ({ \
164 unative_t ret, __ign1, __ign2, __ign3; \
165 asm volatile ( \
166 "call hypercall_page + (" STRING(id) " * 32)\n" \
167 : "=a" (ret), \
168 "=b" (__ign1), \
169 "=c" (__ign2), \
170 "=d" (__ign3) \
171 : "1" (p1), \
172 "2" (p2), \
[aecf79f]173 "3" (p3) \
[4965a846]174 : "memory" \
175 ); \
176 ret; \
177 })
178
179#define hypercall4(id, p1, p2, p3, p4) \
180 ({ \
181 unative_t ret, __ign1, __ign2, __ign3, __ign4; \
182 asm volatile ( \
183 "call hypercall_page + (" STRING(id) " * 32)\n" \
184 : "=a" (ret), \
185 "=b" (__ign1), \
186 "=c" (__ign2), \
187 "=d" (__ign3), \
188 "=S" (__ign4) \
189 : "1" (p1), \
190 "2" (p2), \
191 "3" (p3), \
[aecf79f]192 "4" (p4) \
[4965a846]193 : "memory" \
194 ); \
195 ret; \
196 })
197
198#define hypercall5(id, p1, p2, p3, p4, p5) \
199 ({ \
[aecf79f]200 unative_t ret, __ign1, __ign2, __ign3, __ign4, __ign5; \
[4965a846]201 asm volatile ( \
202 "call hypercall_page + (" STRING(id) " * 32)\n" \
203 : "=a" (ret), \
204 "=b" (__ign1), \
205 "=c" (__ign2), \
206 "=d" (__ign3), \
207 "=S" (__ign4), \
208 "=D" (__ign5) \
209 : "1" (p1), \
210 "2" (p2), \
211 "3" (p3), \
212 "4" (p4), \
[aecf79f]213 "5" (p5) \
[4965a846]214 : "memory" \
215 ); \
216 ret; \
217 })
218
219
[c59dd1a2]220static inline int xen_console_io(const unsigned int cmd, const unsigned int count, const char *str)
[4965a846]221{
222 return hypercall3(XEN_CONSOLE_IO, cmd, count, str);
223}
224
[e12ccc5]225static inline int xen_vm_assist(const unsigned int cmd, const unsigned int type)
[c59dd1a2]226{
[e12ccc5]227 return hypercall2(XEN_VM_ASSIST, cmd, type);
[c59dd1a2]228}
229
[7d3d641]230static inline int xen_set_callbacks(const unsigned int event_selector, const void *event_address, const unsigned int failsafe_selector, void *failsafe_address)
231{
232 return hypercall4(XEN_SET_CALLBACKS, event_selector, event_address, failsafe_selector, failsafe_address);
233}
234
235static inline int xen_set_trap_table(const trap_info_t *table)
236{
237 return hypercall1(XEN_SET_TRAP_TABLE, table);
238}
239
[5b23a82]240static inline int xen_version(const unsigned int cmd, const void *arg)
241{
242 return hypercall2(XEN_VERSION, cmd, arg);
243}
244
[7c5a8dd]245static inline int xen_notify_remote(evtchn_t channel)
246{
247 evtchn_op_t op;
248
249 op.cmd = EVTCHNOP_SEND;
250 op.send.port = channel;
251 return hypercall1(XEN_EVENT_CHANNEL_OP, &op);
252}
253
[4965a846]254#endif
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