source: mainline/kernel/arch/ia32xen/include/hypercall.h@ 0b5f9fa

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 0b5f9fa was b3f8fb7, checked in by Martin Decky <martin@…>, 18 years ago

huge type system cleanup
remove cyclical type dependencies across multiple header files
many minor coding style fixes
  • Property mode set to 100644
File size: 9.8 KB
Line 
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 KERN_ia32xen_HYPERCALL_H_
30#define KERN_ia32xen_HYPERCALL_H_
31
32#ifndef __ASM__
33# include <arch/types.h>
34# include <macros.h>
35#endif
36
37#define GUEST_CMDLINE 1024
38#define VIRT_CPUS 32
39#define START_INFO_SIZE 1104
40
41#define BOOT_OFFSET 0x0000
42#define TEMP_STACK_SIZE 0x1000
43
44#define XEN_VIRT_START 0xFC000000
45#define XEN_CS 0xe019
46
47#define XEN_ELFNOTE_INFO 0
48#define XEN_ELFNOTE_ENTRY 1
49#define XEN_ELFNOTE_HYPERCALL_PAGE 2
50#define XEN_ELFNOTE_VIRT_BASE 3
51#define XEN_ELFNOTE_PADDR_OFFSET 4
52#define XEN_ELFNOTE_XEN_VERSION 5
53#define XEN_ELFNOTE_GUEST_OS 6
54#define XEN_ELFNOTE_GUEST_VERSION 7
55#define XEN_ELFNOTE_LOADER 8
56#define XEN_ELFNOTE_PAE_MODE 9
57#define XEN_ELFNOTE_FEATURES 10
58#define XEN_ELFNOTE_BSD_SYMTAB 11
59
60#define mp_map ((pfn_t *) XEN_VIRT_START)
61
62#define SIF_PRIVILEGED (1 << 0) /**< Privileged domain */
63#define SIF_INITDOMAIN (1 << 1) /**< Iinitial control domain */
64
65#define XEN_CONSOLE_VGA 0x03
66#define XEN_CONSOLE_VESA 0x23
67
68#define XEN_SET_TRAP_TABLE 0
69#define XEN_MMU_UPDATE 1
70#define XEN_SET_CALLBACKS 4
71#define XEN_UPDATE_VA_MAPPING 14
72#define XEN_EVENT_CHANNEL_OP 16
73#define XEN_VERSION 17
74#define XEN_CONSOLE_IO 18
75#define XEN_MMUEXT_OP 26
76
77
78/*
79 * Commands for XEN_CONSOLE_IO
80 */
81#define CONSOLE_IO_WRITE 0
82#define CONSOLE_IO_READ 1
83
84
85#define MMUEXT_PIN_L1_TABLE 0
86#define MMUEXT_PIN_L2_TABLE 1
87#define MMUEXT_PIN_L3_TABLE 2
88#define MMUEXT_PIN_L4_TABLE 3
89#define MMUEXT_UNPIN_TABLE 4
90#define MMUEXT_NEW_BASEPTR 5
91#define MMUEXT_TLB_FLUSH_LOCAL 6
92#define MMUEXT_INVLPG_LOCAL 7
93#define MMUEXT_TLB_FLUSH_MULTI 8
94#define MMUEXT_INVLPG_MULTI 9
95#define MMUEXT_TLB_FLUSH_ALL 10
96#define MMUEXT_INVLPG_ALL 11
97#define MMUEXT_FLUSH_CACHE 12
98#define MMUEXT_SET_LDT 13
99#define MMUEXT_NEW_USER_BASEPTR 15
100
101
102#define EVTCHNOP_SEND 4
103
104
105#define UVMF_NONE 0 /**< No flushing at all */
106#define UVMF_TLB_FLUSH 1 /**< Flush entire TLB(s) */
107#define UVMF_INVLPG 2 /**< Flush only one entry */
108#define UVMF_FLUSHTYPE_MASK 3
109#define UVMF_MULTI 0 /**< Flush subset of TLBs */
110#define UVMF_LOCAL 0 /**< Flush local TLB */
111#define UVMF_ALL (1 << 2) /**< Flush all TLBs */
112
113
114#define DOMID_SELF (0x7FF0U)
115#define DOMID_IO (0x7FF1U)
116
117#ifndef __ASM__
118
119typedef uint16_t domid_t;
120typedef uint32_t evtchn_t;
121
122typedef struct {
123 uint32_t version;
124 uint32_t pad0;
125 uint64_t tsc_timestamp; /**< TSC at last update of time vals */
126 uint64_t system_time; /**< Time, in nanosecs, since boot */
127 uint32_t tsc_to_system_mul;
128 int8_t tsc_shift;
129 int8_t pad1[3];
130} vcpu_time_info_t;
131
132typedef struct {
133 uint32_t cr2;
134 uint32_t pad[5];
135} arch_vcpu_info_t;
136
137typedef struct arch_shared_info {
138 pfn_t max_pfn; /**< max pfn that appears in table */
139 uint32_t pfn_to_mfn_frame_list_list;
140 uint32_t nmi_reason;
141} arch_shared_info_t;
142
143typedef struct {
144 uint8_t evtchn_upcall_pending;
145 ipl_t evtchn_upcall_mask;
146 evtchn_t evtchn_pending_sel;
147 arch_vcpu_info_t arch;
148 vcpu_time_info_t time;
149} vcpu_info_t;
150
151typedef struct {
152 vcpu_info_t vcpu_info[VIRT_CPUS];
153 evtchn_t evtchn_pending[32];
154 evtchn_t evtchn_mask[32];
155
156 uint32_t wc_version; /**< Version counter */
157 uint32_t wc_sec; /**< Secs 00:00:00 UTC, Jan 1, 1970 */
158 uint32_t wc_nsec; /**< Nsecs 00:00:00 UTC, Jan 1, 1970 */
159
160 arch_shared_info_t arch;
161} shared_info_t;
162
163typedef struct {
164 int8_t magic[32]; /**< "xen-<version>-<platform>" */
165 uint32_t frames; /**< Available frames */
166 shared_info_t *shared_info; /**< Shared info structure (machine address) */
167 uint32_t flags; /**< SIF_xxx flags */
168 pfn_t store_mfn; /**< Shared page (machine page) */
169 evtchn_t store_evtchn; /**< Event channel for store communication */
170
171 union {
172 struct {
173 pfn_t mfn; /**< Console page (machine page) */
174 evtchn_t evtchn; /**< Event channel for console messages */
175 } domU;
176
177 struct {
178 uint32_t info_off; /**< Offset of console_info struct */
179 uint32_t info_size; /**< Size of console_info struct from start */
180 } dom0;
181 } console;
182
183 pte_t *ptl0; /**< Boot PTL0 (kernel address) */
184 uint32_t pt_frames; /**< Number of bootstrap page table frames */
185 pfn_t *pm_map; /**< Physical->machine frame map (kernel address) */
186 void *mod_start; /**< Modules start (kernel address) */
187 uint32_t mod_len; /**< Modules size (bytes) */
188 int8_t cmd_line[GUEST_CMDLINE];
189} start_info_t;
190
191typedef struct {
192 uint8_t video_type;
193
194 union {
195 struct {
196 uint16_t font_height;
197 uint16_t cursor_x;
198 uint16_t cursor_y;
199 uint16_t rows;
200 uint16_t columns;
201 } vga;
202
203 struct {
204 uint16_t width;
205 uint16_t height;
206 uint16_t bytes_per_line;
207 uint16_t bits_per_pixel;
208 uint32_t lfb_base;
209 uint32_t lfb_size;
210 uint8_t red_pos;
211 uint8_t red_size;
212 uint8_t green_pos;
213 uint8_t green_size;
214 uint8_t blue_pos;
215 uint8_t blue_size;
216 uint8_t rsvd_pos;
217 uint8_t rsvd_size;
218 } vesa_lfb;
219 } info;
220} console_info_t;
221
222typedef struct {
223 pfn_t start;
224 pfn_t size;
225 pfn_t reserved;
226} memzone_t;
227
228extern start_info_t start_info;
229extern shared_info_t shared_info;
230extern memzone_t meminfo;
231
232typedef struct {
233 uint8_t vector; /**< Exception vector */
234 uint8_t flags; /**< 0-3: privilege level; 4: clear event enable */
235 uint16_t cs; /**< Code selector */
236 void *address; /**< Code offset */
237} trap_info_t;
238
239typedef struct {
240 evtchn_t port;
241} evtchn_send_t;
242
243typedef struct {
244 uint32_t cmd;
245 union {
246 evtchn_send_t send;
247 };
248} evtchn_op_t;
249
250#define force_evtchn_callback() ((void) xen_version(0, 0))
251
252#define hypercall0(id) \
253 ({ \
254 unative_t ret; \
255 asm volatile ( \
256 "call hypercall_page + (" STRING(id) " * 32)\n" \
257 : "=a" (ret) \
258 : \
259 : "memory" \
260 ); \
261 ret; \
262 })
263
264#define hypercall1(id, p1) \
265 ({ \
266 unative_t ret, __ign1; \
267 asm volatile ( \
268 "call hypercall_page + (" STRING(id) " * 32)\n" \
269 : "=a" (ret), \
270 "=b" (__ign1) \
271 : "1" (p1) \
272 : "memory" \
273 ); \
274 ret; \
275 })
276
277#define hypercall2(id, p1, p2) \
278 ({ \
279 unative_t ret, __ign1, __ign2; \
280 asm volatile ( \
281 "call hypercall_page + (" STRING(id) " * 32)\n" \
282 : "=a" (ret), \
283 "=b" (__ign1), \
284 "=c" (__ign2) \
285 : "1" (p1), \
286 "2" (p2) \
287 : "memory" \
288 ); \
289 ret; \
290 })
291
292#define hypercall3(id, p1, p2, p3) \
293 ({ \
294 unative_t ret, __ign1, __ign2, __ign3; \
295 asm volatile ( \
296 "call hypercall_page + (" STRING(id) " * 32)\n" \
297 : "=a" (ret), \
298 "=b" (__ign1), \
299 "=c" (__ign2), \
300 "=d" (__ign3) \
301 : "1" (p1), \
302 "2" (p2), \
303 "3" (p3) \
304 : "memory" \
305 ); \
306 ret; \
307 })
308
309#define hypercall4(id, p1, p2, p3, p4) \
310 ({ \
311 unative_t ret, __ign1, __ign2, __ign3, __ign4; \
312 asm volatile ( \
313 "call hypercall_page + (" STRING(id) " * 32)\n" \
314 : "=a" (ret), \
315 "=b" (__ign1), \
316 "=c" (__ign2), \
317 "=d" (__ign3), \
318 "=S" (__ign4) \
319 : "1" (p1), \
320 "2" (p2), \
321 "3" (p3), \
322 "4" (p4) \
323 : "memory" \
324 ); \
325 ret; \
326 })
327
328#define hypercall5(id, p1, p2, p3, p4, p5) \
329 ({ \
330 unative_t ret, __ign1, __ign2, __ign3, __ign4, __ign5; \
331 asm volatile ( \
332 "call hypercall_page + (" STRING(id) " * 32)\n" \
333 : "=a" (ret), \
334 "=b" (__ign1), \
335 "=c" (__ign2), \
336 "=d" (__ign3), \
337 "=S" (__ign4), \
338 "=D" (__ign5) \
339 : "1" (p1), \
340 "2" (p2), \
341 "3" (p3), \
342 "4" (p4), \
343 "5" (p5) \
344 : "memory" \
345 ); \
346 ret; \
347 })
348
349
350static inline int xen_console_io(const unsigned int cmd, const unsigned int count, const char *str)
351{
352 return hypercall3(XEN_CONSOLE_IO, cmd, count, str);
353}
354
355static inline int xen_set_callbacks(const unsigned int event_selector, const void *event_address, const unsigned int failsafe_selector, void *failsafe_address)
356{
357 return hypercall4(XEN_SET_CALLBACKS, event_selector, event_address, failsafe_selector, failsafe_address);
358}
359
360static inline int xen_set_trap_table(const trap_info_t *table)
361{
362 return hypercall1(XEN_SET_TRAP_TABLE, table);
363}
364
365static inline int xen_version(const unsigned int cmd, const void *arg)
366{
367 return hypercall2(XEN_VERSION, cmd, arg);
368}
369
370static inline int xen_notify_remote(evtchn_t channel)
371{
372 evtchn_op_t op;
373
374 op.cmd = EVTCHNOP_SEND;
375 op.send.port = channel;
376 return hypercall1(XEN_EVENT_CHANNEL_OP, &op);
377}
378
379#endif
380
381#endif
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