debuggers.hg

view tools/misc/xen-hvmctx.c @ 21067:b4a1832a916f

Update Xen version to 4.0.0-rc6
author Keir Fraser <keir.fraser@citrix.com>
date Tue Mar 09 18:18:05 2010 +0000 (2010-03-09)
parents 47ec2d131c22
children 779c0ef9682c
line source
1 /*
2 * xen-hvmctx.c
3 *
4 * Print out the contents of a HVM save record in a human-readable way.
5 *
6 * Tim Deegan <Tim.Deegan@citrix.com>
7 * Copyright (c) 2008 Citrix Systems, Inc.
8 *
9 * Permission is hereby granted, free of charge, to any person obtaining a copy
10 * of this software and associated documentation files (the "Software"), to
11 * deal in the Software without restriction, including without limitation the
12 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
13 * sell copies of the Software, and to permit persons to whom the Software is
14 * furnished to do so, subject to the following conditions:
15 *
16 * The above copyright notice and this permission notice shall be included in
17 * all copies or substantial portions of the Software.
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
22 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
23 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
24 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
25 * DEALINGS IN THE SOFTWARE.
26 */
28 #include <inttypes.h>
29 #include <stdio.h>
30 #include <stdlib.h>
31 #include <stddef.h>
32 #include <stdint.h>
33 #include <unistd.h>
34 #include <string.h>
35 #include <errno.h>
36 #include <limits.h>
37 #include <sys/types.h>
38 #include <sys/stat.h>
39 #include <arpa/inet.h>
41 #define BITS_PER_LONG __WORDSIZE
42 #define BITS_TO_LONGS(bits) \
43 (((bits)+BITS_PER_LONG-1)/BITS_PER_LONG)
44 #define DECLARE_BITMAP(name,bits) \
45 unsigned long name[BITS_TO_LONGS(bits)]
47 #include <xenctrl.h>
48 #include <xen/xen.h>
49 #include <xen/domctl.h>
50 #include <xen/hvm/save.h>
52 static uint8_t *buf = NULL;
53 static uint32_t len;
54 static uint32_t off;
56 #define READ(_x) do { \
57 if ( len - off < sizeof (_x) ) \
58 { \
59 fprintf(stderr, "Error: need another %u bytes, only %u available", \
60 (unsigned int)sizeof(_x), len - off); \
61 exit(1); \
62 } \
63 memcpy(&(_x), buf + off, sizeof (_x)); \
64 off += sizeof (_x); \
65 } while (0)
67 static void dump_header(void)
68 {
69 HVM_SAVE_TYPE(HEADER) h;
70 READ(h);
71 printf(" Header: magic %#lx, version %lu\n",
72 (unsigned long) h.magic, (unsigned long) h.version);
73 printf(" Xen changeset %llx\n",
74 (unsigned long long) h.changeset);
75 printf(" CPUID[0][%%eax] 0x%.8lx\n", (unsigned long) h.cpuid);
76 printf(" gtsc_khz %lu\n", (unsigned long) h.gtsc_khz);
77 }
79 struct fpu_mm {
80 uint64_t lo;
81 uint16_t hi;
82 uint16_t pad[3];
83 } __attribute__((packed));
85 struct fpu_xmm {
86 uint64_t lo;
87 uint64_t hi;
88 };
90 struct fpu_regs {
91 uint16_t fcw;
92 uint16_t fsw;
93 uint8_t ftw;
94 uint8_t res0;
95 uint16_t fop;
96 uint64_t fpuip;
97 uint64_t fpudp;
98 uint32_t mxcsr;
99 uint32_t mxcsr_mask;
100 struct fpu_mm mm[8];
101 struct fpu_xmm xmm[15];
102 uint64_t res1[12];
103 } __attribute__((packed));
105 static void dump_fpu(void *p)
106 {
107 struct fpu_regs *r = p;
108 int i;
110 printf(" FPU: fcw 0x%4.4x fsw 0x%4.4x\n"
111 " ftw 0x%2.2x (0x%2.2x) fop 0x%4.4x\n"
112 " fpuip 0x%16.16"PRIx64" fpudp 0x%16.16"PRIx64"\n"
113 " mxcsr 0x%8.8lx mask 0x%8.8lx\n",
114 (unsigned)r->fcw, (unsigned)r->fsw,
115 (unsigned)r->ftw, (unsigned)r->res0, (unsigned)r->fop,
116 r->fpuip, r->fpudp,
117 (unsigned long)r->mxcsr, (unsigned long)r->mxcsr_mask);
119 for ( i = 0 ; i < 8 ; i++ )
120 printf(" mm%i 0x%4.4x%16.16"PRIx64" (0x%4.4x%4.4x%4.4x)\n",
121 i, r->mm[i].hi, r->mm[i].lo,
122 r->mm[i].pad[2], r->mm[i].pad[1], r->mm[i].pad[0]);
124 for ( i = 0 ; i < 16 ; i++ )
125 printf(" xmm%2.2i 0x%16.16"PRIx64"%16.16"PRIx64"\n",
126 i, r->xmm[i].hi, r->xmm[i].lo);
128 for ( i = 0 ; i < 6 ; i++ )
129 printf(" (0x%16.16"PRIx64"%16.16"PRIx64")\n",
130 r->res1[2*i+1], r->res1[2*i]);
131 }
133 static void dump_cpu(void)
134 {
135 HVM_SAVE_TYPE(CPU) c;
136 READ(c);
137 printf(" CPU: rax 0x%16.16llx rbx 0x%16.16llx\n"
138 " rcx 0x%16.16llx rdx 0x%16.16llx\n"
139 " rbp 0x%16.16llx rsi 0x%16.16llx\n"
140 " rdi 0x%16.16llx rsp 0x%16.16llx\n"
141 " r8 0x%16.16llx r9 0x%16.16llx\n"
142 " r10 0x%16.16llx r11 0x%16.16llx\n"
143 " r12 0x%16.16llx r13 0x%16.16llx\n"
144 " r14 0x%16.16llx r15 0x%16.16llx\n"
145 " rip 0x%16.16llx rflags 0x%16.16llx\n"
146 " cr0 0x%16.16llx cr2 0x%16.16llx\n"
147 " cr3 0x%16.16llx cr4 0x%16.16llx\n"
148 " dr0 0x%16.16llx dr1 0x%16.16llx\n"
149 " dr2 0x%16.16llx dr3 0x%16.16llx\n"
150 " dr6 0x%16.16llx dr7 0x%16.16llx\n"
151 " cs 0x%8.8x (0x%16.16llx + 0x%8.8x / 0x%5.5x)\n"
152 " ds 0x%8.8x (0x%16.16llx + 0x%8.8x / 0x%5.5x)\n"
153 " es 0x%8.8x (0x%16.16llx + 0x%8.8x / 0x%5.5x)\n"
154 " fs 0x%8.8x (0x%16.16llx + 0x%8.8x / 0x%5.5x)\n"
155 " gs 0x%8.8x (0x%16.16llx + 0x%8.8x / 0x%5.5x)\n"
156 " ss 0x%8.8x (0x%16.16llx + 0x%8.8x / 0x%5.5x)\n"
157 " tr 0x%8.8x (0x%16.16llx + 0x%8.8x / 0x%5.5x)\n"
158 " ldtr 0x%8.8x (0x%16.16llx + 0x%8.8x / 0x%5.5x)\n"
159 " itdr (0x%16.16llx + 0x%8.8x)\n"
160 " gdtr (0x%16.16llx + 0x%8.8x)\n"
161 " sysenter cs 0x%8.8llx eip 0x%16.16llx esp 0x%16.16llx\n"
162 " shadow gs 0x%16.16llx\n"
163 " MSR flags 0x%16.16llx lstar 0x%16.16llx\n"
164 " star 0x%16.16llx cstar 0x%16.16llx\n"
165 " sfmask 0x%16.16llx efer 0x%16.16llx\n"
166 " tsc 0x%16.16llx\n"
167 " event 0x%8.8lx error 0x%8.8lx\n",
168 (unsigned long long) c.rax, (unsigned long long) c.rbx,
169 (unsigned long long) c.rcx, (unsigned long long) c.rdx,
170 (unsigned long long) c.rbp, (unsigned long long) c.rsi,
171 (unsigned long long) c.rdi, (unsigned long long) c.rsp,
172 (unsigned long long) c.r8, (unsigned long long) c.r9,
173 (unsigned long long) c.r10, (unsigned long long) c.r11,
174 (unsigned long long) c.r12, (unsigned long long) c.r13,
175 (unsigned long long) c.r14, (unsigned long long) c.r15,
176 (unsigned long long) c.rip, (unsigned long long) c.rflags,
177 (unsigned long long) c.cr0, (unsigned long long) c.cr2,
178 (unsigned long long) c.cr3, (unsigned long long) c.cr4,
179 (unsigned long long) c.dr0, (unsigned long long) c.dr1,
180 (unsigned long long) c.dr2, (unsigned long long) c.dr3,
181 (unsigned long long) c.dr6, (unsigned long long) c.dr7,
182 c.cs_sel, (unsigned long long) c.cs_base, c.cs_limit, c.cs_arbytes,
183 c.ds_sel, (unsigned long long) c.ds_base, c.ds_limit, c.ds_arbytes,
184 c.es_sel, (unsigned long long) c.es_base, c.es_limit, c.es_arbytes,
185 c.fs_sel, (unsigned long long) c.fs_base, c.fs_limit, c.fs_arbytes,
186 c.gs_sel, (unsigned long long) c.gs_base, c.gs_limit, c.gs_arbytes,
187 c.ss_sel, (unsigned long long) c.ss_base, c.ss_limit, c.ss_arbytes,
188 c.tr_sel, (unsigned long long) c.tr_base, c.tr_limit, c.tr_arbytes,
189 c.ldtr_sel, (unsigned long long) c.ldtr_base,
190 c.ldtr_limit, c.ldtr_arbytes,
191 (unsigned long long) c.idtr_base, c.idtr_limit,
192 (unsigned long long) c.gdtr_base, c.gdtr_limit,
193 (unsigned long long) c.sysenter_cs,
194 (unsigned long long) c.sysenter_eip,
195 (unsigned long long) c.sysenter_esp,
196 (unsigned long long) c.shadow_gs,
197 (unsigned long long) c.msr_flags,
198 (unsigned long long) c.msr_lstar,
199 (unsigned long long) c.msr_star,
200 (unsigned long long) c.msr_cstar,
201 (unsigned long long) c.msr_syscall_mask,
202 (unsigned long long) c.msr_efer,
203 (unsigned long long) c.tsc,
204 (unsigned long) c.pending_event, (unsigned long) c.error_code);
205 dump_fpu(&c.fpu_regs);
206 }
209 static void dump_pic(void)
210 {
211 HVM_SAVE_TYPE(PIC) p;
212 READ(p);
213 printf(" PIC: IRQ base %#x, irr %#x, imr %#x, isr %#x\n",
214 p.irq_base, p.irr, p.imr, p.isr);
216 printf(" init_state %u, priority_add %u, readsel_isr %u, poll %u\n",
217 p.init_state, p.priority_add, p.readsel_isr, p.poll);
218 printf(" auto_eoi %u, rotate_on_auto_eoi %u\n",
219 p.auto_eoi, p.rotate_on_auto_eoi);
220 printf(" special_fully_nested_mode %u, special_mask_mode %u\n",
221 p.special_fully_nested_mode, p.special_mask_mode);
222 printf(" is_master %u, elcr %#x, int_output %#x\n",
223 p.is_master, p.elcr, p.int_output);
224 }
227 static void dump_ioapic(void)
228 {
229 int i;
230 HVM_SAVE_TYPE(IOAPIC) p;
231 READ(p);
232 printf(" IOAPIC: base_address %#llx, ioregsel %#x id %#x\n",
233 (unsigned long long) p.base_address, p.ioregsel, p.id);
234 for ( i = 0; i < VIOAPIC_NUM_PINS; i++ )
235 {
236 printf(" pin %.2i: 0x%.16llx\n", i,
237 (unsigned long long) p.redirtbl[i].bits);
238 }
239 }
241 static void dump_lapic(void)
242 {
243 HVM_SAVE_TYPE(LAPIC) p;
244 READ(p);
245 printf(" LAPIC: base_msr %#llx, disabled %#x, timer_divisor %#x\n",
246 (unsigned long long) p.apic_base_msr, p.disabled, p.timer_divisor);
247 }
249 static void dump_lapic_regs(void)
250 {
251 unsigned int i;
252 HVM_SAVE_TYPE(LAPIC_REGS) r;
253 READ(r);
254 printf(" LAPIC registers:\n");
255 for ( i = 0 ; i < 0x400 ; i += 32 )
256 {
257 printf(" 0x%4.4x: 0x%16.16llx 0x%4.4x: 0x%16.16llx\n",
258 i, *(unsigned long long *)&r.data[i],
259 i + 16, *(unsigned long long *)&r.data[i + 16]);
260 }
261 }
263 static void dump_pci_irq(void)
264 {
265 HVM_SAVE_TYPE(PCI_IRQ) i;
266 READ(i);
267 printf(" PCI IRQs: 0x%16.16llx%16.16llx\n",
268 (unsigned long long) i.pad[0], (unsigned long long) i.pad[1]);
269 }
271 static void dump_isa_irq(void)
272 {
273 HVM_SAVE_TYPE(ISA_IRQ) i;
274 READ(i);
275 printf(" ISA IRQs: 0x%4.4llx\n",
276 (unsigned long long) i.pad[0]);
277 }
279 static void dump_pci_link(void)
280 {
281 HVM_SAVE_TYPE(PCI_LINK) l;
282 READ(l);
283 printf(" PCI LINK: %u %u %u %u\n",
284 l.route[0], l.route[1], l.route[2], l.route[3]);
285 }
287 static void dump_pit(void)
288 {
289 int i;
290 HVM_SAVE_TYPE(PIT) p;
291 READ(p);
292 printf(" PIT: speaker %s\n", p.speaker_data_on ? "on" : "off");
293 for ( i = 0 ; i < 2 ; i++ )
294 {
295 printf(" ch %1i: count %#x, latched_count %#x, count_latched %u\n",
296 i, p.channels[i].count, p.channels[i].latched_count,
297 p.channels[i].count_latched);
298 printf(" status %#x, status_latched %#x\n",
299 p.channels[i].status, p.channels[i].status_latched);
300 printf(" rd_state %#x, wr_state %#x, wr_latch %#x, rw_mode %#x\n",
301 p.channels[i].read_state, p.channels[i].write_state,
302 p.channels[i].write_latch, p.channels[i].rw_mode);
303 printf(" mode %#x, bcd %#x, gate %#x\n",
304 p.channels[i].mode, p.channels[i].bcd, p.channels[i].gate);
305 }
306 }
308 static void dump_rtc(void)
309 {
310 HVM_SAVE_TYPE(RTC) r;
311 READ(r);
312 printf(" RTC: regs 0x%2.2x 0x%2.2x 0x%2.2x 0x%2.2x 0x%2.2x 0x%2.2x 0x%2.2x 0x%2.2x\n",
313 r.cmos_data[0], r.cmos_data[1], r.cmos_data[2], r.cmos_data[3],
314 r.cmos_data[4], r.cmos_data[5], r.cmos_data[6], r.cmos_data[7]);
315 printf(" 0x%2.2x 0x%2.2x 0x%2.2x 0x%2.2x 0x%2.2x 0x%2.2x, index 0x%2.2x\n",
316 r.cmos_data[8], r.cmos_data[9], r.cmos_data[10], r.cmos_data[11],
317 r.cmos_data[12], r.cmos_data[13], r.cmos_index);
319 }
321 static void dump_hpet(void)
322 {
323 int i;
324 HVM_SAVE_TYPE(HPET) h;
325 READ(h);
326 printf(" HPET: capability %#llx config %#llx\n",
327 (unsigned long long) h.capability,
328 (unsigned long long) h.config);
329 printf(" isr %#llx counter %#llx\n",
330 (unsigned long long) h.isr,
331 (unsigned long long) h.mc64);
332 for ( i = 0; i < HPET_TIMER_NUM; i++ )
333 {
334 printf(" timer%i config %#llx cmp %#llx\n", i,
335 (unsigned long long) h.timers[i].config,
336 (unsigned long long) h.timers[i].cmp);
337 printf(" timer%i period %#llx fsb %#llx\n", i,
338 (unsigned long long) h.period[i],
339 (unsigned long long) h.timers[i].fsb);
340 }
341 }
343 static void dump_pmtimer(void)
344 {
345 HVM_SAVE_TYPE(PMTIMER) p;
346 READ(p);
347 printf(" ACPI PM: TMR_VAL 0x%x, PM1a_STS 0x%x, PM1a_EN 0x%x\n",
348 p.tmr_val, (unsigned) p.pm1a_sts, (unsigned) p.pm1a_en);
349 }
351 static void dump_mtrr(void)
352 {
353 HVM_SAVE_TYPE(MTRR) p;
354 int i;
355 READ(p);
356 printf(" MTRR: PAT 0x%llx, cap 0x%llx, default 0x%llx\n",
357 (unsigned long long) p.msr_pat_cr,
358 (unsigned long long) p.msr_mtrr_cap,
359 (unsigned long long) p.msr_mtrr_def_type);
360 for ( i = 0 ; i < MTRR_VCNT ; i++ )
361 printf(" var %i 0x%16.16llx 0x%16.16llx\n", i,
362 (unsigned long long) p.msr_mtrr_var[2 * i],
363 (unsigned long long) p.msr_mtrr_var[2 * i + 1]);
364 for ( i = 0 ; i < NUM_FIXED_MSR ; i++ )
365 printf(" fixed %.2i 0x%16.16llx\n", i,
366 (unsigned long long) p.msr_mtrr_fixed[i]);
367 }
369 static void dump_viridian(void)
370 {
371 HVM_SAVE_TYPE(VIRIDIAN) p;
372 READ(p);
373 printf(" VIRIDIAN: hypercall gpa 0x%llx, guest ID 0x%llx\n",
374 (unsigned long long) p.hypercall_gpa,
375 (unsigned long long) p.guest_os_id);
376 }
378 int main(int argc, char **argv)
379 {
380 int entry, domid, xch;
382 struct hvm_save_descriptor desc;
384 if ( argc != 2 || !argv[1] || (domid = atoi(argv[1])) < 0 )
385 {
386 fprintf(stderr, "usage: %s <domid>\n", argv[0]);
387 exit(1);
388 }
390 xch = xc_interface_open();
391 if ( xch < 0 )
392 {
393 fprintf(stderr, "Error: can't open libxc handle\n");
394 exit(1);
395 }
396 len = xc_domain_hvm_getcontext(xch, domid, 0, 0);
397 if ( len == (uint32_t) -1 )
398 {
399 fprintf(stderr, "Error: can't get record length for dom %i\n", domid);
400 exit(1);
401 }
402 buf = malloc(len);
403 if ( buf == NULL )
404 {
405 fprintf(stderr, "Error: can't allocate %u bytes\n", len);
406 exit(1);
407 }
408 len = xc_domain_hvm_getcontext(xch, domid, buf, len);
409 if ( len == (uint32_t) -1 )
410 {
411 fprintf(stderr, "Error: can't get HVM record for dom %i\n", domid);
412 exit(1);
413 }
414 off = 0;
416 /* Say hello */
417 printf("HVM save record for domain %i\n", domid);
419 entry = 0;
420 do {
421 READ(desc);
422 printf("Entry %i: type %u instance %u, length %u\n",
423 entry++, (unsigned) desc.typecode,
424 (unsigned) desc.instance, (unsigned) desc.length);
425 switch (desc.typecode)
426 {
427 case HVM_SAVE_CODE(HEADER): dump_header(); break;
428 case HVM_SAVE_CODE(CPU): dump_cpu(); break;
429 case HVM_SAVE_CODE(PIC): dump_pic(); break;
430 case HVM_SAVE_CODE(IOAPIC): dump_ioapic(); break;
431 case HVM_SAVE_CODE(LAPIC): dump_lapic(); break;
432 case HVM_SAVE_CODE(LAPIC_REGS): dump_lapic_regs(); break;
433 case HVM_SAVE_CODE(PCI_IRQ): dump_pci_irq(); break;
434 case HVM_SAVE_CODE(ISA_IRQ): dump_isa_irq(); break;
435 case HVM_SAVE_CODE(PCI_LINK): dump_pci_link(); break;
436 case HVM_SAVE_CODE(PIT): dump_pit(); break;
437 case HVM_SAVE_CODE(RTC): dump_rtc(); break;
438 case HVM_SAVE_CODE(HPET): dump_hpet(); break;
439 case HVM_SAVE_CODE(PMTIMER): dump_pmtimer(); break;
440 case HVM_SAVE_CODE(MTRR): dump_mtrr(); break;
441 case HVM_SAVE_CODE(VIRIDIAN): dump_viridian(); break;
442 case HVM_SAVE_CODE(END): break;
443 default:
444 printf(" ** Don't understand type %u: skipping\n",
445 (unsigned) desc.typecode);
446 off += (desc.length);
447 }
448 } while ( desc.typecode != HVM_SAVE_CODE(END) && off < len );
450 return 0;
451 }