]>
Commit | Line | Data |
---|---|---|
e2245566 MA |
1 | /* |
2 | * Miscellaneous target-dependent HMP commands | |
3 | * | |
4 | * Copyright (c) 2003-2004 Fabrice Bellard | |
5 | * | |
6 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
7 | * of this software and associated documentation files (the "Software"), to deal | |
8 | * in the Software without restriction, including without limitation the rights | |
9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
10 | * copies of the Software, and to permit persons to whom the Software is | |
11 | * furnished to do so, subject to the following conditions: | |
12 | * | |
13 | * The above copyright notice and this permission notice shall be included in | |
14 | * all copies or substantial portions of the Software. | |
15 | * | |
16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
22 | * THE SOFTWARE. | |
23 | */ | |
24 | ||
25 | #include "qemu/osdep.h" | |
26 | #include "disas/disas.h" | |
27 | #include "exec/address-spaces.h" | |
28 | #include "monitor/hmp-target.h" | |
29 | #include "monitor/monitor-internal.h" | |
30 | #include "qapi/error.h" | |
31 | #include "qapi/qmp/qdict.h" | |
32 | #include "sysemu/hw_accel.h" | |
33 | ||
34 | /* Set the current CPU defined by the user. Callers must hold BQL. */ | |
35 | int monitor_set_cpu(Monitor *mon, int cpu_index) | |
36 | { | |
37 | CPUState *cpu; | |
38 | ||
39 | cpu = qemu_get_cpu(cpu_index); | |
40 | if (cpu == NULL) { | |
41 | return -1; | |
42 | } | |
43 | g_free(mon->mon_cpu_path); | |
44 | mon->mon_cpu_path = object_get_canonical_path(OBJECT(cpu)); | |
45 | return 0; | |
46 | } | |
47 | ||
48 | /* Callers must hold BQL. */ | |
49 | static CPUState *mon_get_cpu_sync(Monitor *mon, bool synchronize) | |
50 | { | |
51 | CPUState *cpu = NULL; | |
52 | ||
53 | if (mon->mon_cpu_path) { | |
54 | cpu = (CPUState *) object_resolve_path_type(mon->mon_cpu_path, | |
55 | TYPE_CPU, NULL); | |
56 | if (!cpu) { | |
57 | g_free(mon->mon_cpu_path); | |
58 | mon->mon_cpu_path = NULL; | |
59 | } | |
60 | } | |
61 | if (!mon->mon_cpu_path) { | |
62 | if (!first_cpu) { | |
63 | return NULL; | |
64 | } | |
65 | monitor_set_cpu(mon, first_cpu->cpu_index); | |
66 | cpu = first_cpu; | |
67 | } | |
68 | assert(cpu != NULL); | |
69 | if (synchronize) { | |
70 | cpu_synchronize_state(cpu); | |
71 | } | |
72 | return cpu; | |
73 | } | |
74 | ||
75 | CPUState *mon_get_cpu(Monitor *mon) | |
76 | { | |
77 | return mon_get_cpu_sync(mon, true); | |
78 | } | |
79 | ||
80 | CPUArchState *mon_get_cpu_env(Monitor *mon) | |
81 | { | |
82 | CPUState *cs = mon_get_cpu(mon); | |
83 | ||
b77af26e | 84 | return cs ? cpu_env(cs) : NULL; |
e2245566 MA |
85 | } |
86 | ||
87 | int monitor_get_cpu_index(Monitor *mon) | |
88 | { | |
89 | CPUState *cs = mon_get_cpu_sync(mon, false); | |
90 | ||
91 | return cs ? cs->cpu_index : UNASSIGNED_CPU_INDEX; | |
92 | } | |
93 | ||
94 | void hmp_info_registers(Monitor *mon, const QDict *qdict) | |
95 | { | |
96 | bool all_cpus = qdict_get_try_bool(qdict, "cpustate_all", false); | |
97 | int vcpu = qdict_get_try_int(qdict, "vcpu", -1); | |
98 | CPUState *cs; | |
99 | ||
100 | if (all_cpus) { | |
101 | CPU_FOREACH(cs) { | |
102 | monitor_printf(mon, "\nCPU#%d\n", cs->cpu_index); | |
103 | cpu_dump_state(cs, NULL, CPU_DUMP_FPU); | |
104 | } | |
105 | } else { | |
106 | cs = vcpu >= 0 ? qemu_get_cpu(vcpu) : mon_get_cpu(mon); | |
107 | ||
108 | if (!cs) { | |
109 | if (vcpu >= 0) { | |
110 | monitor_printf(mon, "CPU#%d not available\n", vcpu); | |
111 | } else { | |
112 | monitor_printf(mon, "No CPU available\n"); | |
113 | } | |
114 | return; | |
115 | } | |
116 | ||
117 | monitor_printf(mon, "\nCPU#%d\n", cs->cpu_index); | |
118 | cpu_dump_state(cs, NULL, CPU_DUMP_FPU); | |
119 | } | |
120 | } | |
121 | ||
122 | static void memory_dump(Monitor *mon, int count, int format, int wsize, | |
123 | hwaddr addr, int is_physical) | |
124 | { | |
125 | int l, line_size, i, max_digits, len; | |
126 | uint8_t buf[16]; | |
127 | uint64_t v; | |
128 | CPUState *cs = mon_get_cpu(mon); | |
129 | ||
130 | if (!cs && (format == 'i' || !is_physical)) { | |
131 | monitor_printf(mon, "Can not dump without CPU\n"); | |
132 | return; | |
133 | } | |
134 | ||
135 | if (format == 'i') { | |
136 | monitor_disas(mon, cs, addr, count, is_physical); | |
137 | return; | |
138 | } | |
139 | ||
140 | len = wsize * count; | |
141 | if (wsize == 1) { | |
142 | line_size = 8; | |
143 | } else { | |
144 | line_size = 16; | |
145 | } | |
146 | max_digits = 0; | |
147 | ||
148 | switch(format) { | |
149 | case 'o': | |
150 | max_digits = DIV_ROUND_UP(wsize * 8, 3); | |
151 | break; | |
152 | default: | |
153 | case 'x': | |
154 | max_digits = (wsize * 8) / 4; | |
155 | break; | |
156 | case 'u': | |
157 | case 'd': | |
158 | max_digits = DIV_ROUND_UP(wsize * 8 * 10, 33); | |
159 | break; | |
160 | case 'c': | |
161 | wsize = 1; | |
162 | break; | |
163 | } | |
164 | ||
165 | while (len > 0) { | |
166 | if (is_physical) { | |
167 | monitor_printf(mon, HWADDR_FMT_plx ":", addr); | |
168 | } else { | |
169 | monitor_printf(mon, TARGET_FMT_lx ":", (target_ulong)addr); | |
170 | } | |
171 | l = len; | |
172 | if (l > line_size) | |
173 | l = line_size; | |
174 | if (is_physical) { | |
175 | AddressSpace *as = cs ? cs->as : &address_space_memory; | |
176 | MemTxResult r = address_space_read(as, addr, | |
177 | MEMTXATTRS_UNSPECIFIED, buf, l); | |
178 | if (r != MEMTX_OK) { | |
179 | monitor_printf(mon, " Cannot access memory\n"); | |
180 | break; | |
181 | } | |
182 | } else { | |
183 | if (cpu_memory_rw_debug(cs, addr, buf, l, 0) < 0) { | |
184 | monitor_printf(mon, " Cannot access memory\n"); | |
185 | break; | |
186 | } | |
187 | } | |
188 | i = 0; | |
189 | while (i < l) { | |
190 | switch(wsize) { | |
191 | default: | |
192 | case 1: | |
193 | v = ldub_p(buf + i); | |
194 | break; | |
195 | case 2: | |
196 | v = lduw_p(buf + i); | |
197 | break; | |
198 | case 4: | |
199 | v = (uint32_t)ldl_p(buf + i); | |
200 | break; | |
201 | case 8: | |
202 | v = ldq_p(buf + i); | |
203 | break; | |
204 | } | |
205 | monitor_printf(mon, " "); | |
206 | switch(format) { | |
207 | case 'o': | |
208 | monitor_printf(mon, "%#*" PRIo64, max_digits, v); | |
209 | break; | |
210 | case 'x': | |
211 | monitor_printf(mon, "0x%0*" PRIx64, max_digits, v); | |
212 | break; | |
213 | case 'u': | |
214 | monitor_printf(mon, "%*" PRIu64, max_digits, v); | |
215 | break; | |
216 | case 'd': | |
217 | monitor_printf(mon, "%*" PRId64, max_digits, v); | |
218 | break; | |
219 | case 'c': | |
220 | monitor_printc(mon, v); | |
221 | break; | |
222 | } | |
223 | i += wsize; | |
224 | } | |
225 | monitor_printf(mon, "\n"); | |
226 | addr += l; | |
227 | len -= l; | |
228 | } | |
229 | } | |
230 | ||
231 | void hmp_memory_dump(Monitor *mon, const QDict *qdict) | |
232 | { | |
233 | int count = qdict_get_int(qdict, "count"); | |
234 | int format = qdict_get_int(qdict, "format"); | |
235 | int size = qdict_get_int(qdict, "size"); | |
236 | target_long addr = qdict_get_int(qdict, "addr"); | |
237 | ||
238 | memory_dump(mon, count, format, size, addr, 0); | |
239 | } | |
240 | ||
241 | void hmp_physical_memory_dump(Monitor *mon, const QDict *qdict) | |
242 | { | |
243 | int count = qdict_get_int(qdict, "count"); | |
244 | int format = qdict_get_int(qdict, "format"); | |
245 | int size = qdict_get_int(qdict, "size"); | |
246 | hwaddr addr = qdict_get_int(qdict, "addr"); | |
247 | ||
248 | memory_dump(mon, count, format, size, addr, 1); | |
249 | } | |
250 | ||
251 | void *gpa2hva(MemoryRegion **p_mr, hwaddr addr, uint64_t size, Error **errp) | |
252 | { | |
253 | Int128 gpa_region_size; | |
254 | MemoryRegionSection mrs = memory_region_find(get_system_memory(), | |
255 | addr, size); | |
256 | ||
257 | if (!mrs.mr) { | |
258 | error_setg(errp, "No memory is mapped at address 0x%" HWADDR_PRIx, addr); | |
259 | return NULL; | |
260 | } | |
261 | ||
262 | if (!memory_region_is_ram(mrs.mr) && !memory_region_is_romd(mrs.mr)) { | |
263 | error_setg(errp, "Memory at address 0x%" HWADDR_PRIx "is not RAM", addr); | |
264 | memory_region_unref(mrs.mr); | |
265 | return NULL; | |
266 | } | |
267 | ||
268 | gpa_region_size = int128_make64(size); | |
269 | if (int128_lt(mrs.size, gpa_region_size)) { | |
270 | error_setg(errp, "Size of memory region at 0x%" HWADDR_PRIx | |
271 | " exceeded.", addr); | |
272 | memory_region_unref(mrs.mr); | |
273 | return NULL; | |
274 | } | |
275 | ||
276 | *p_mr = mrs.mr; | |
277 | return qemu_map_ram_ptr(mrs.mr->ram_block, mrs.offset_within_region); | |
278 | } | |
279 | ||
280 | void hmp_gpa2hva(Monitor *mon, const QDict *qdict) | |
281 | { | |
282 | hwaddr addr = qdict_get_int(qdict, "addr"); | |
283 | Error *local_err = NULL; | |
284 | MemoryRegion *mr = NULL; | |
285 | void *ptr; | |
286 | ||
287 | ptr = gpa2hva(&mr, addr, 1, &local_err); | |
288 | if (local_err) { | |
289 | error_report_err(local_err); | |
290 | return; | |
291 | } | |
292 | ||
293 | monitor_printf(mon, "Host virtual address for 0x%" HWADDR_PRIx | |
294 | " (%s) is %p\n", | |
295 | addr, mr->name, ptr); | |
296 | ||
297 | memory_region_unref(mr); | |
298 | } | |
299 | ||
300 | void hmp_gva2gpa(Monitor *mon, const QDict *qdict) | |
301 | { | |
302 | target_ulong addr = qdict_get_int(qdict, "addr"); | |
303 | MemTxAttrs attrs; | |
304 | CPUState *cs = mon_get_cpu(mon); | |
305 | hwaddr gpa; | |
306 | ||
307 | if (!cs) { | |
308 | monitor_printf(mon, "No cpu\n"); | |
309 | return; | |
310 | } | |
311 | ||
312 | gpa = cpu_get_phys_page_attrs_debug(cs, addr & TARGET_PAGE_MASK, &attrs); | |
313 | if (gpa == -1) { | |
314 | monitor_printf(mon, "Unmapped\n"); | |
315 | } else { | |
316 | monitor_printf(mon, "gpa: %#" HWADDR_PRIx "\n", | |
317 | gpa + (addr & ~TARGET_PAGE_MASK)); | |
318 | } | |
319 | } | |
320 | ||
321 | #ifdef CONFIG_LINUX | |
322 | static uint64_t vtop(void *ptr, Error **errp) | |
323 | { | |
324 | uint64_t pinfo; | |
325 | uint64_t ret = -1; | |
326 | uintptr_t addr = (uintptr_t) ptr; | |
327 | uintptr_t pagesize = qemu_real_host_page_size(); | |
328 | off_t offset = addr / pagesize * sizeof(pinfo); | |
329 | int fd; | |
330 | ||
331 | fd = open("/proc/self/pagemap", O_RDONLY); | |
332 | if (fd == -1) { | |
333 | error_setg_errno(errp, errno, "Cannot open /proc/self/pagemap"); | |
334 | return -1; | |
335 | } | |
336 | ||
337 | /* Force copy-on-write if necessary. */ | |
338 | qatomic_add((uint8_t *)ptr, 0); | |
339 | ||
340 | if (pread(fd, &pinfo, sizeof(pinfo), offset) != sizeof(pinfo)) { | |
341 | error_setg_errno(errp, errno, "Cannot read pagemap"); | |
342 | goto out; | |
343 | } | |
344 | if ((pinfo & (1ull << 63)) == 0) { | |
345 | error_setg(errp, "Page not present"); | |
346 | goto out; | |
347 | } | |
348 | ret = ((pinfo & 0x007fffffffffffffull) * pagesize) | (addr & (pagesize - 1)); | |
349 | ||
350 | out: | |
351 | close(fd); | |
352 | return ret; | |
353 | } | |
354 | ||
355 | void hmp_gpa2hpa(Monitor *mon, const QDict *qdict) | |
356 | { | |
357 | hwaddr addr = qdict_get_int(qdict, "addr"); | |
358 | Error *local_err = NULL; | |
359 | MemoryRegion *mr = NULL; | |
360 | void *ptr; | |
361 | uint64_t physaddr; | |
362 | ||
363 | ptr = gpa2hva(&mr, addr, 1, &local_err); | |
364 | if (local_err) { | |
365 | error_report_err(local_err); | |
366 | return; | |
367 | } | |
368 | ||
369 | physaddr = vtop(ptr, &local_err); | |
370 | if (local_err) { | |
371 | error_report_err(local_err); | |
372 | } else { | |
373 | monitor_printf(mon, "Host physical address for 0x%" HWADDR_PRIx | |
374 | " (%s) is 0x%" PRIx64 "\n", | |
375 | addr, mr->name, (uint64_t) physaddr); | |
376 | } | |
377 | ||
378 | memory_region_unref(mr); | |
379 | } | |
380 | #endif |