]> git.proxmox.com Git - mirror_qemu.git/blame - monitor/hmp-cmds-target.c
monitor: release the lock before calling close()
[mirror_qemu.git] / monitor / hmp-cmds-target.c
CommitLineData
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. */
35int 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. */
49static 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
75CPUState *mon_get_cpu(Monitor *mon)
76{
77 return mon_get_cpu_sync(mon, true);
78}
79
80CPUArchState *mon_get_cpu_env(Monitor *mon)
81{
82 CPUState *cs = mon_get_cpu(mon);
83
84 return cs ? cs->env_ptr : NULL;
85}
86
87int 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
94void 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
122static 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
231void 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
241void 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
251void *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
280void 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
300void 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
322static 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
350out:
351 close(fd);
352 return ret;
353}
354
355void 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