Palacios Public Git Repository

To checkout Palacios execute

  git clone http://v3vee.org/palacios/palacios.web/palacios.git
This will give you the master branch. You probably want the devel branch or one of the release branches. To switch to the devel branch, simply execute
  cd palacios
  git checkout --track -b devel origin/devel
The other branches are similar.


debugging tweaks and minor fixes
[palacios.git] / palacios / src / palacios / svm_handler.c
1 /* 
2  * This file is part of the Palacios Virtual Machine Monitor developed
3  * by the V3VEE Project with funding from the United States National 
4  * Science Foundation and the Department of Energy.  
5  *
6  * The V3VEE Project is a joint project between Northwestern University
7  * and the University of New Mexico.  You can find out more at 
8  * http://www.v3vee.org
9  *
10  * Copyright (c) 2008, Jack Lange <jarusl@cs.northwestern.edu> 
11  * Copyright (c) 2008, The V3VEE Project <http://www.v3vee.org> 
12  * All rights reserved.
13  *
14  * Author: Jack Lange <jarusl@cs.northwestern.edu>
15  *
16  * This is free software.  You are permitted to use,
17  * redistribute, and modify it as specified in the file "V3VEE_LICENSE".
18  */
19
20
21 #include <palacios/svm_handler.h>
22 #include <palacios/vmm.h>
23 #include <palacios/vm_guest_mem.h>
24 #include <palacios/vmm_decoder.h>
25 #include <palacios/vmm_ctrl_regs.h>
26 #include <palacios/svm_io.h>
27 #include <palacios/vmm_halt.h>
28 #include <palacios/svm_pause.h>
29 #include <palacios/svm_wbinvd.h>
30 #include <palacios/vmm_intr.h>
31 #include <palacios/vmm_emulator.h>
32 #include <palacios/svm_msr.h>
33 #include <palacios/vmm_hypercall.h>
34 #include <palacios/vmm_cpuid.h>
35 #include <palacios/vmm_direct_paging.h>
36
37
38 #ifdef CONFIG_TELEMETRY
39 #include <palacios/vmm_telemetry.h>
40 #endif
41
42
43 int v3_handle_svm_exit(struct guest_info * info, addr_t exit_code, addr_t exit_info1, addr_t exit_info2) {
44
45 #ifdef CONFIG_TELEMETRY
46     if (info->enable_telemetry) {
47         v3_telemetry_start_exit(info);
48     }
49 #endif
50
51
52     //PrintDebug("SVM Returned: Exit Code: %x\n",exit_code); 
53
54     switch (exit_code) {
55         case VMEXIT_IOIO: {
56             struct svm_io_info * io_info = (struct svm_io_info *)&(exit_info1);
57
58             if (io_info->type == 0) {
59                 if (io_info->str) {
60
61                     if (v3_handle_svm_io_outs(info, io_info) == -1 ) {
62                         return -1;
63                     }
64                 } else {
65                     if (v3_handle_svm_io_out(info, io_info) == -1) {
66                         return -1;
67                     }
68                 }
69
70             } else {
71
72                 if (io_info->str) {
73                     if (v3_handle_svm_io_ins(info, io_info) == -1) {
74                         return -1;
75                     }
76                 } else {
77                     if (v3_handle_svm_io_in(info, io_info) == -1) {
78                         return -1;
79                     }
80                 }
81             }
82
83             info->rip = exit_info2;
84
85             break;
86         }
87         case VMEXIT_MSR:
88
89             if (exit_info1 == 0) {
90                 if (v3_handle_msr_read(info) == -1) {
91                     return -1;
92                 }
93             } else if (exit_info1 == 1) {
94                 if (v3_handle_msr_write(info) == -1) {
95                     return -1;
96                 }
97             } else {
98                 PrintError("Invalid MSR Operation\n");
99                 return -1;
100             }
101                 
102             break;
103
104         case VMEXIT_CPUID:
105             if (v3_handle_cpuid(info) == -1) {
106                 PrintError("Error handling CPUID\n");
107                 return -1;
108             }
109
110             break;
111         case VMEXIT_CR0_WRITE: 
112 #ifdef CONFIG_DEBUG_CTRL_REGS
113             PrintDebug("CR0 Write\n");
114 #endif
115             if (v3_handle_cr0_write(info) == -1) {
116                 return -1;
117             }
118             break;
119         case VMEXIT_CR0_READ: 
120 #ifdef CONFIG_DEBUG_CTRL_REGS
121             PrintDebug("CR0 Read\n");
122 #endif
123             if (v3_handle_cr0_read(info) == -1) {
124                 return -1;
125             }
126             break;
127         case VMEXIT_CR3_WRITE: 
128 #ifdef CONFIG_DEBUG_CTRL_REGS
129             PrintDebug("CR3 Write\n");
130 #endif
131             if (v3_handle_cr3_write(info) == -1) {
132                 return -1;
133             }    
134
135             break;
136         case  VMEXIT_CR3_READ: 
137 #ifdef CONFIG_DEBUG_CTRL_REGS
138             PrintDebug("CR3 Read\n");
139 #endif
140             if (v3_handle_cr3_read(info) == -1) {
141                 return -1;
142             }
143             break;
144         case VMEXIT_CR4_WRITE: 
145 #ifdef CONFIG_DEBUG_CTRL_REGS
146             PrintDebug("CR4 Write\n");
147 #endif
148             if (v3_handle_cr4_write(info) == -1) {
149                 return -1;
150             }    
151             break;
152         case  VMEXIT_CR4_READ: 
153 #ifdef CONFIG_DEBUG_CTRL_REGS
154             PrintDebug("CR4 Read\n");
155 #endif
156             if (v3_handle_cr4_read(info) == -1) {
157                 return -1;
158             }
159             break;
160         case VMEXIT_EXCP14: {
161             addr_t fault_addr = exit_info2;
162             pf_error_t * error_code = (pf_error_t *)&(exit_info1);
163 #ifdef CONFIG_DEBUG_SHADOW_PAGING
164             PrintDebug("PageFault at %p (error=%d)\n", 
165                        (void *)fault_addr, *(uint_t *)error_code);
166 #endif
167             if (info->shdw_pg_mode == SHADOW_PAGING) {
168                 if (v3_handle_shadow_pagefault(info, fault_addr, *error_code) == -1) {
169                     return -1;
170                 }
171             } else {
172                 PrintError("Page fault in un implemented paging mode\n");
173                 return -1;
174             }
175             break;
176         } 
177         case VMEXIT_NPF: {
178             addr_t fault_addr = exit_info2;
179             pf_error_t * error_code = (pf_error_t *)&(exit_info1);
180
181             if (info->shdw_pg_mode == NESTED_PAGING) {
182                 if (v3_handle_nested_pagefault(info, fault_addr, *error_code) == -1) {
183                     return -1;
184                 }
185             } else {
186                 PrintError("Currently unhandled Nested Page Fault\n");
187                 return -1;
188                     }
189             break;
190             }
191         case VMEXIT_INVLPG: 
192             if (info->shdw_pg_mode == SHADOW_PAGING) {
193 #ifdef CONFIG_DEBUG_SHADOW_PAGING
194                 PrintDebug("Invlpg\n");
195 #endif
196                 if (v3_handle_shadow_invlpg(info) == -1) {
197                     return -1;
198                 }
199             }
200             break;    
201         case VMEXIT_VMMCALL: 
202             /* 
203              * Hypercall 
204              */
205
206             // VMMCALL is a 3 byte op
207             // We do this early because some hypercalls can change the rip...
208             info->rip += 3;         
209
210             if (v3_handle_hypercall(info) == -1) {
211                 PrintError("Error handling Hypercall\n");
212                 return -1;
213             }
214
215             break;          
216         case VMEXIT_INTR:
217             // handled by interrupt dispatch earlier
218             break;
219         case VMEXIT_SMI:
220             //   handle_svm_smi(info); // ignored for now
221             break;
222         case VMEXIT_HLT:
223 #ifdef CONFIG_DEBUG_HALT
224             PrintDebug("Guest halted\n");
225 #endif
226             if (v3_handle_halt(info) == -1) {
227                 return -1;
228             }
229             break;
230         case VMEXIT_PAUSE:
231             //      PrintDebug("Guest paused\n");
232             if (v3_handle_svm_pause(info) == -1) { 
233                 return -1;
234             }
235             break;
236         case VMEXIT_WBINVD:   
237 #ifdef CONFIG_DEBUG_EMULATOR
238             PrintDebug("WBINVD\n");
239 #endif
240             if (v3_handle_svm_wbinvd(info) == -1) { 
241                 return -1;
242             }
243             break;
244         
245
246
247
248
249             /* Exits Following this line are NOT HANDLED */
250             /*=======================================================================*/
251             
252         default: {
253
254             addr_t rip_addr;
255             
256             PrintDebug("Unhandled SVM Exit: %s\n", vmexit_code_to_str(exit_code));
257             
258             rip_addr = get_addr_linear(info, info->rip, &(info->segments.cs));
259             
260             
261             PrintError("SVM Returned:(VMCB=%p)\n", (void *)(info->vmm_data)); 
262             PrintError("RIP: %p\n", (void *)(addr_t)(info->rip));
263             PrintError("RIP Linear: %p\n", (void *)(addr_t)(rip_addr));
264             
265             PrintError("SVM Returned: Exit Code: %p\n", (void *)(addr_t)exit_code); 
266             
267             PrintError("io_info1 low = 0x%.8x\n", *(uint_t*)&(exit_info1));
268             PrintError("io_info1 high = 0x%.8x\n", *(uint_t *)(((uchar_t *)&(exit_info1)) + 4));
269             
270             PrintError("io_info2 low = 0x%.8x\n", *(uint_t*)&(exit_info2));
271             PrintError("io_info2 high = 0x%.8x\n", *(uint_t *)(((uchar_t *)&(exit_info2)) + 4));
272             
273             
274             if (info->shdw_pg_mode == SHADOW_PAGING) {
275                 //      PrintHostPageTables(info, info->ctrl_regs.cr3);
276                 //PrintGuestPageTables(info, info->shdw_pg_state.guest_cr3);
277             }
278             
279             return -1;              
280         }
281     }
282     // END OF SWITCH (EXIT_CODE)
283
284 #ifdef CONFIG_TELEMETRY
285     if (info->enable_telemetry) {
286         v3_telemetry_end_exit(info, exit_code);
287     }
288 #endif
289
290
291     if (exit_code == VMEXIT_INTR) {
292         //PrintDebug("INTR ret IP = %x\n", guest_state->rip);
293     }
294     
295     return 0;
296 }
297
298
299 static const char VMEXIT_CR0_READ_STR[] = "VMEXIT_CR0_READ";
300 static const char VMEXIT_CR1_READ_STR[] = "VMEXIT_CR1_READ";
301 static const char VMEXIT_CR2_READ_STR[] = "VMEXIT_CR2_READ";
302 static const char VMEXIT_CR3_READ_STR[] = "VMEXIT_CR3_READ";
303 static const char VMEXIT_CR4_READ_STR[] = "VMEXIT_CR4_READ";
304 static const char VMEXIT_CR5_READ_STR[] = "VMEXIT_CR5_READ";
305 static const char VMEXIT_CR6_READ_STR[] = "VMEXIT_CR6_READ";
306 static const char VMEXIT_CR7_READ_STR[] = "VMEXIT_CR7_READ";
307 static const char VMEXIT_CR8_READ_STR[] = "VMEXIT_CR8_READ";
308 static const char VMEXIT_CR9_READ_STR[] = "VMEXIT_CR9_READ";
309 static const char VMEXIT_CR10_READ_STR[] = "VMEXIT_CR10_READ";
310 static const char VMEXIT_CR11_READ_STR[] = "VMEXIT_CR11_READ";
311 static const char VMEXIT_CR12_READ_STR[] = "VMEXIT_CR12_READ";
312 static const char VMEXIT_CR13_READ_STR[] = "VMEXIT_CR13_READ";
313 static const char VMEXIT_CR14_READ_STR[] = "VMEXIT_CR14_READ";
314 static const char VMEXIT_CR15_READ_STR[] = "VMEXIT_CR15_READ";
315 static const char VMEXIT_CR0_WRITE_STR[] = "VMEXIT_CR0_WRITE";
316 static const char VMEXIT_CR1_WRITE_STR[] = "VMEXIT_CR1_WRITE";
317 static const char VMEXIT_CR2_WRITE_STR[] = "VMEXIT_CR2_WRITE";
318 static const char VMEXIT_CR3_WRITE_STR[] = "VMEXIT_CR3_WRITE";
319 static const char VMEXIT_CR4_WRITE_STR[] = "VMEXIT_CR4_WRITE";
320 static const char VMEXIT_CR5_WRITE_STR[] = "VMEXIT_CR5_WRITE";
321 static const char VMEXIT_CR6_WRITE_STR[] = "VMEXIT_CR6_WRITE";
322 static const char VMEXIT_CR7_WRITE_STR[] = "VMEXIT_CR7_WRITE";
323 static const char VMEXIT_CR8_WRITE_STR[] = "VMEXIT_CR8_WRITE";
324 static const char VMEXIT_CR9_WRITE_STR[] = "VMEXIT_CR9_WRITE";
325 static const char VMEXIT_CR10_WRITE_STR[] = "VMEXIT_CR10_WRITE";
326 static const char VMEXIT_CR11_WRITE_STR[] = "VMEXIT_CR11_WRITE";
327 static const char VMEXIT_CR12_WRITE_STR[] = "VMEXIT_CR12_WRITE";
328 static const char VMEXIT_CR13_WRITE_STR[] = "VMEXIT_CR13_WRITE";
329 static const char VMEXIT_CR14_WRITE_STR[] = "VMEXIT_CR14_WRITE";
330 static const char VMEXIT_CR15_WRITE_STR[] = "VMEXIT_CR15_WRITE";
331 static const char VMEXIT_DR0_READ_STR[] = "VMEXIT_DR0_READ";
332 static const char VMEXIT_DR1_READ_STR[] = "VMEXIT_DR1_READ";
333 static const char VMEXIT_DR2_READ_STR[] = "VMEXIT_DR2_READ";
334 static const char VMEXIT_DR3_READ_STR[] = "VMEXIT_DR3_READ";
335 static const char VMEXIT_DR4_READ_STR[] = "VMEXIT_DR4_READ";
336 static const char VMEXIT_DR5_READ_STR[] = "VMEXIT_DR5_READ";
337 static const char VMEXIT_DR6_READ_STR[] = "VMEXIT_DR6_READ";
338 static const char VMEXIT_DR7_READ_STR[] = "VMEXIT_DR7_READ";
339 static const char VMEXIT_DR8_READ_STR[] = "VMEXIT_DR8_READ";
340 static const char VMEXIT_DR9_READ_STR[] = "VMEXIT_DR9_READ";
341 static const char VMEXIT_DR10_READ_STR[] = "VMEXIT_DR10_READ";
342 static const char VMEXIT_DR11_READ_STR[] = "VMEXIT_DR11_READ";
343 static const char VMEXIT_DR12_READ_STR[] = "VMEXIT_DR12_READ";
344 static const char VMEXIT_DR13_READ_STR[] = "VMEXIT_DR13_READ";
345 static const char VMEXIT_DR14_READ_STR[] = "VMEXIT_DR14_READ";
346 static const char VMEXIT_DR15_READ_STR[] = "VMEXIT_DR15_READ";
347 static const char VMEXIT_DR0_WRITE_STR[] = "VMEXIT_DR0_WRITE";
348 static const char VMEXIT_DR1_WRITE_STR[] = "VMEXIT_DR1_WRITE";
349 static const char VMEXIT_DR2_WRITE_STR[] = "VMEXIT_DR2_WRITE";
350 static const char VMEXIT_DR3_WRITE_STR[] = "VMEXIT_DR3_WRITE";
351 static const char VMEXIT_DR4_WRITE_STR[] = "VMEXIT_DR4_WRITE";
352 static const char VMEXIT_DR5_WRITE_STR[] = "VMEXIT_DR5_WRITE";
353 static const char VMEXIT_DR6_WRITE_STR[] = "VMEXIT_DR6_WRITE";
354 static const char VMEXIT_DR7_WRITE_STR[] = "VMEXIT_DR7_WRITE";
355 static const char VMEXIT_DR8_WRITE_STR[] = "VMEXIT_DR8_WRITE";
356 static const char VMEXIT_DR9_WRITE_STR[] = "VMEXIT_DR9_WRITE";
357 static const char VMEXIT_DR10_WRITE_STR[] = "VMEXIT_DR10_WRITE";
358 static const char VMEXIT_DR11_WRITE_STR[] = "VMEXIT_DR11_WRITE";
359 static const char VMEXIT_DR12_WRITE_STR[] = "VMEXIT_DR12_WRITE";
360 static const char VMEXIT_DR13_WRITE_STR[] = "VMEXIT_DR13_WRITE";
361 static const char VMEXIT_DR14_WRITE_STR[] = "VMEXIT_DR14_WRITE";
362 static const char VMEXIT_DR15_WRITE_STR[] = "VMEXIT_DR15_WRITE";
363 static const char VMEXIT_EXCP0_STR[] = "VMEXIT_EXCP0";
364 static const char VMEXIT_EXCP1_STR[] = "VMEXIT_EXCP1";
365 static const char VMEXIT_EXCP2_STR[] = "VMEXIT_EXCP2";
366 static const char VMEXIT_EXCP3_STR[] = "VMEXIT_EXCP3";
367 static const char VMEXIT_EXCP4_STR[] = "VMEXIT_EXCP4";
368 static const char VMEXIT_EXCP5_STR[] = "VMEXIT_EXCP5";
369 static const char VMEXIT_EXCP6_STR[] = "VMEXIT_EXCP6";
370 static const char VMEXIT_EXCP7_STR[] = "VMEXIT_EXCP7";
371 static const char VMEXIT_EXCP8_STR[] = "VMEXIT_EXCP8";
372 static const char VMEXIT_EXCP9_STR[] = "VMEXIT_EXCP9";
373 static const char VMEXIT_EXCP10_STR[] = "VMEXIT_EXCP10";
374 static const char VMEXIT_EXCP11_STR[] = "VMEXIT_EXCP11";
375 static const char VMEXIT_EXCP12_STR[] = "VMEXIT_EXCP12";
376 static const char VMEXIT_EXCP13_STR[] = "VMEXIT_EXCP13";
377 static const char VMEXIT_EXCP14_STR[] = "VMEXIT_EXCP14";
378 static const char VMEXIT_EXCP15_STR[] = "VMEXIT_EXCP15";
379 static const char VMEXIT_EXCP16_STR[] = "VMEXIT_EXCP16";
380 static const char VMEXIT_EXCP17_STR[] = "VMEXIT_EXCP17";
381 static const char VMEXIT_EXCP18_STR[] = "VMEXIT_EXCP18";
382 static const char VMEXIT_EXCP19_STR[] = "VMEXIT_EXCP19";
383 static const char VMEXIT_EXCP20_STR[] = "VMEXIT_EXCP20";
384 static const char VMEXIT_EXCP21_STR[] = "VMEXIT_EXCP21";
385 static const char VMEXIT_EXCP22_STR[] = "VMEXIT_EXCP22";
386 static const char VMEXIT_EXCP23_STR[] = "VMEXIT_EXCP23";
387 static const char VMEXIT_EXCP24_STR[] = "VMEXIT_EXCP24";
388 static const char VMEXIT_EXCP25_STR[] = "VMEXIT_EXCP25";
389 static const char VMEXIT_EXCP26_STR[] = "VMEXIT_EXCP26";
390 static const char VMEXIT_EXCP27_STR[] = "VMEXIT_EXCP27";
391 static const char VMEXIT_EXCP28_STR[] = "VMEXIT_EXCP28";
392 static const char VMEXIT_EXCP29_STR[] = "VMEXIT_EXCP29";
393 static const char VMEXIT_EXCP30_STR[] = "VMEXIT_EXCP30";
394 static const char VMEXIT_EXCP31_STR[] = "VMEXIT_EXCP31";
395 static const char VMEXIT_INTR_STR[] = "VMEXIT_INTR";
396 static const char VMEXIT_NMI_STR[] = "VMEXIT_NMI";
397 static const char VMEXIT_SMI_STR[] = "VMEXIT_SMI";
398 static const char VMEXIT_INIT_STR[] = "VMEXIT_INIT";
399 static const char VMEXIT_VINITR_STR[] = "VMEXIT_VINITR";
400 static const char VMEXIT_CR0_SEL_WRITE_STR[] = "VMEXIT_CR0_SEL_WRITE";
401 static const char VMEXIT_IDTR_READ_STR[] = "VMEXIT_IDTR_READ";
402 static const char VMEXIT_GDTR_READ_STR[] = "VMEXIT_GDTR_READ";
403 static const char VMEXIT_LDTR_READ_STR[] = "VMEXIT_LDTR_READ";
404 static const char VMEXIT_TR_READ_STR[] = "VMEXIT_TR_READ";
405 static const char VMEXIT_IDTR_WRITE_STR[] = "VMEXIT_IDTR_WRITE";
406 static const char VMEXIT_GDTR_WRITE_STR[] = "VMEXIT_GDTR_WRITE";
407 static const char VMEXIT_LDTR_WRITE_STR[] = "VMEXIT_LDTR_WRITE";
408 static const char VMEXIT_TR_WRITE_STR[] = "VMEXIT_TR_WRITE";
409 static const char VMEXIT_RDTSC_STR[] = "VMEXIT_RDTSC";
410 static const char VMEXIT_RDPMC_STR[] = "VMEXIT_RDPMC";
411 static const char VMEXIT_PUSHF_STR[] = "VMEXIT_PUSHF";
412 static const char VMEXIT_POPF_STR[] = "VMEXIT_POPF";
413 static const char VMEXIT_CPUID_STR[] = "VMEXIT_CPUID";
414 static const char VMEXIT_RSM_STR[] = "VMEXIT_RSM";
415 static const char VMEXIT_IRET_STR[] = "VMEXIT_IRET";
416 static const char VMEXIT_SWINT_STR[] = "VMEXIT_SWINT";
417 static const char VMEXIT_INVD_STR[] = "VMEXIT_INVD";
418 static const char VMEXIT_PAUSE_STR[] = "VMEXIT_PAUSE";
419 static const char VMEXIT_HLT_STR[] = "VMEXIT_HLT";
420 static const char VMEXIT_INVLPG_STR[] = "VMEXIT_INVLPG";
421 static const char VMEXIT_INVLPGA_STR[] = "VMEXIT_INVLPGA";
422 static const char VMEXIT_IOIO_STR[] = "VMEXIT_IOIO";
423 static const char VMEXIT_MSR_STR[] = "VMEXIT_MSR";
424 static const char VMEXIT_TASK_SWITCH_STR[] = "VMEXIT_TASK_SWITCH";
425 static const char VMEXIT_FERR_FREEZE_STR[] = "VMEXIT_FERR_FREEZE";
426 static const char VMEXIT_SHUTDOWN_STR[] = "VMEXIT_SHUTDOWN";
427 static const char VMEXIT_VMRUN_STR[] = "VMEXIT_VMRUN";
428 static const char VMEXIT_VMMCALL_STR[] = "VMEXIT_VMMCALL";
429 static const char VMEXIT_VMLOAD_STR[] = "VMEXIT_VMLOAD";
430 static const char VMEXIT_VMSAVE_STR[] = "VMEXIT_VMSAVE";
431 static const char VMEXIT_STGI_STR[] = "VMEXIT_STGI";
432 static const char VMEXIT_CLGI_STR[] = "VMEXIT_CLGI";
433 static const char VMEXIT_SKINIT_STR[] = "VMEXIT_SKINIT";
434 static const char VMEXIT_RDTSCP_STR[] = "VMEXIT_RDTSCP";
435 static const char VMEXIT_ICEBP_STR[] = "VMEXIT_ICEBP";
436 static const char VMEXIT_WBINVD_STR[] = "VMEXIT_WBINVD";
437 static const char VMEXIT_MONITOR_STR[] = "VMEXIT_MONITOR";
438 static const char VMEXIT_MWAIT_STR[] = "VMEXIT_MWAIT";
439 static const char VMEXIT_MWAIT_CONDITIONAL_STR[] = "VMEXIT_MWAIT_CONDITIONAL";
440 static const char VMEXIT_NPF_STR[] = "VMEXIT_NPF";
441 static const char VMEXIT_INVALID_VMCB_STR[] = "VMEXIT_INVALID_VMCB";
442
443
444
445 const char * vmexit_code_to_str(uint_t exit_code) {
446     switch(exit_code) {
447         case VMEXIT_CR0_READ:
448             return VMEXIT_CR0_READ_STR;
449         case VMEXIT_CR1_READ:
450             return VMEXIT_CR1_READ_STR;
451         case VMEXIT_CR2_READ:
452             return VMEXIT_CR2_READ_STR;
453         case VMEXIT_CR3_READ:
454             return VMEXIT_CR3_READ_STR;
455         case VMEXIT_CR4_READ:
456             return VMEXIT_CR4_READ_STR;
457         case VMEXIT_CR5_READ:
458             return VMEXIT_CR5_READ_STR;
459         case VMEXIT_CR6_READ:
460             return VMEXIT_CR6_READ_STR;
461         case VMEXIT_CR7_READ:
462             return VMEXIT_CR7_READ_STR;
463         case VMEXIT_CR8_READ:
464             return VMEXIT_CR8_READ_STR;
465         case VMEXIT_CR9_READ:
466             return VMEXIT_CR9_READ_STR;
467         case VMEXIT_CR10_READ:
468             return VMEXIT_CR10_READ_STR;
469         case VMEXIT_CR11_READ:
470             return VMEXIT_CR11_READ_STR;
471         case VMEXIT_CR12_READ:
472             return VMEXIT_CR12_READ_STR;
473         case VMEXIT_CR13_READ:
474             return VMEXIT_CR13_READ_STR;
475         case VMEXIT_CR14_READ:
476             return VMEXIT_CR14_READ_STR;
477         case VMEXIT_CR15_READ:
478             return VMEXIT_CR15_READ_STR;
479         case VMEXIT_CR0_WRITE:
480             return VMEXIT_CR0_WRITE_STR;
481         case VMEXIT_CR1_WRITE:
482             return VMEXIT_CR1_WRITE_STR;
483         case VMEXIT_CR2_WRITE:
484             return VMEXIT_CR2_WRITE_STR;
485         case VMEXIT_CR3_WRITE:
486             return VMEXIT_CR3_WRITE_STR;
487         case VMEXIT_CR4_WRITE:
488             return VMEXIT_CR4_WRITE_STR;
489         case VMEXIT_CR5_WRITE:
490             return VMEXIT_CR5_WRITE_STR;
491         case VMEXIT_CR6_WRITE:
492             return VMEXIT_CR6_WRITE_STR;
493         case VMEXIT_CR7_WRITE:
494             return VMEXIT_CR7_WRITE_STR;
495         case VMEXIT_CR8_WRITE:
496             return VMEXIT_CR8_WRITE_STR;
497         case VMEXIT_CR9_WRITE:
498             return VMEXIT_CR9_WRITE_STR;
499         case VMEXIT_CR10_WRITE:
500             return VMEXIT_CR10_WRITE_STR;
501         case VMEXIT_CR11_WRITE:
502             return VMEXIT_CR11_WRITE_STR;
503         case VMEXIT_CR12_WRITE:
504             return VMEXIT_CR12_WRITE_STR;
505         case VMEXIT_CR13_WRITE:
506             return VMEXIT_CR13_WRITE_STR;
507         case VMEXIT_CR14_WRITE:
508             return VMEXIT_CR14_WRITE_STR;
509         case VMEXIT_CR15_WRITE:
510             return VMEXIT_CR15_WRITE_STR;
511         case VMEXIT_DR0_READ:
512             return VMEXIT_DR0_READ_STR;
513         case VMEXIT_DR1_READ:
514             return VMEXIT_DR1_READ_STR;
515         case VMEXIT_DR2_READ:
516             return VMEXIT_DR2_READ_STR;
517         case VMEXIT_DR3_READ:
518             return VMEXIT_DR3_READ_STR;
519         case VMEXIT_DR4_READ:
520             return VMEXIT_DR4_READ_STR;
521         case VMEXIT_DR5_READ:
522             return VMEXIT_DR5_READ_STR;
523         case VMEXIT_DR6_READ:
524             return VMEXIT_DR6_READ_STR;
525         case VMEXIT_DR7_READ:
526             return VMEXIT_DR7_READ_STR;
527         case VMEXIT_DR8_READ:
528             return VMEXIT_DR8_READ_STR;
529         case VMEXIT_DR9_READ:
530             return VMEXIT_DR9_READ_STR;
531         case VMEXIT_DR10_READ:
532             return VMEXIT_DR10_READ_STR;
533         case VMEXIT_DR11_READ:
534             return VMEXIT_DR11_READ_STR;
535         case VMEXIT_DR12_READ:
536             return VMEXIT_DR12_READ_STR;
537         case VMEXIT_DR13_READ:
538             return VMEXIT_DR13_READ_STR;
539         case VMEXIT_DR14_READ:
540             return VMEXIT_DR14_READ_STR;
541         case VMEXIT_DR15_READ:
542             return VMEXIT_DR15_READ_STR;
543         case VMEXIT_DR0_WRITE:
544             return VMEXIT_DR0_WRITE_STR;
545         case VMEXIT_DR1_WRITE:
546             return VMEXIT_DR1_WRITE_STR;
547         case VMEXIT_DR2_WRITE:
548             return VMEXIT_DR2_WRITE_STR;
549         case VMEXIT_DR3_WRITE:
550             return VMEXIT_DR3_WRITE_STR;
551         case VMEXIT_DR4_WRITE:
552             return VMEXIT_DR4_WRITE_STR;
553         case VMEXIT_DR5_WRITE:
554             return VMEXIT_DR5_WRITE_STR;
555         case VMEXIT_DR6_WRITE:
556             return VMEXIT_DR6_WRITE_STR;
557         case VMEXIT_DR7_WRITE:
558             return VMEXIT_DR7_WRITE_STR;
559         case VMEXIT_DR8_WRITE:
560             return VMEXIT_DR8_WRITE_STR;
561         case VMEXIT_DR9_WRITE:
562             return VMEXIT_DR9_WRITE_STR;
563         case VMEXIT_DR10_WRITE:
564             return VMEXIT_DR10_WRITE_STR;
565         case VMEXIT_DR11_WRITE:
566             return VMEXIT_DR11_WRITE_STR;
567         case VMEXIT_DR12_WRITE:
568             return VMEXIT_DR12_WRITE_STR;
569         case VMEXIT_DR13_WRITE:
570             return VMEXIT_DR13_WRITE_STR;
571         case VMEXIT_DR14_WRITE:
572             return VMEXIT_DR14_WRITE_STR;
573         case VMEXIT_DR15_WRITE:
574             return VMEXIT_DR15_WRITE_STR;
575         case VMEXIT_EXCP0:
576             return VMEXIT_EXCP0_STR;
577         case VMEXIT_EXCP1:
578             return VMEXIT_EXCP1_STR;
579         case VMEXIT_EXCP2:
580             return VMEXIT_EXCP2_STR;
581         case VMEXIT_EXCP3:
582             return VMEXIT_EXCP3_STR;
583         case VMEXIT_EXCP4:
584             return VMEXIT_EXCP4_STR;
585         case VMEXIT_EXCP5:
586             return VMEXIT_EXCP5_STR;
587         case VMEXIT_EXCP6:
588             return VMEXIT_EXCP6_STR;
589         case VMEXIT_EXCP7:
590             return VMEXIT_EXCP7_STR;
591         case VMEXIT_EXCP8:
592             return VMEXIT_EXCP8_STR;
593         case VMEXIT_EXCP9:
594             return VMEXIT_EXCP9_STR;
595         case VMEXIT_EXCP10:
596             return VMEXIT_EXCP10_STR;
597         case VMEXIT_EXCP11:
598             return VMEXIT_EXCP11_STR;
599         case VMEXIT_EXCP12:
600             return VMEXIT_EXCP12_STR;
601         case VMEXIT_EXCP13:
602             return VMEXIT_EXCP13_STR;
603         case VMEXIT_EXCP14:
604             return VMEXIT_EXCP14_STR;
605         case VMEXIT_EXCP15:
606             return VMEXIT_EXCP15_STR;
607         case VMEXIT_EXCP16:
608             return VMEXIT_EXCP16_STR;
609         case VMEXIT_EXCP17:
610             return VMEXIT_EXCP17_STR;
611         case VMEXIT_EXCP18:
612             return VMEXIT_EXCP18_STR;
613         case VMEXIT_EXCP19:
614             return VMEXIT_EXCP19_STR;
615         case VMEXIT_EXCP20:
616             return VMEXIT_EXCP20_STR;
617         case VMEXIT_EXCP21:
618             return VMEXIT_EXCP21_STR;
619         case VMEXIT_EXCP22:
620             return VMEXIT_EXCP22_STR;
621         case VMEXIT_EXCP23:
622             return VMEXIT_EXCP23_STR;
623         case VMEXIT_EXCP24:
624             return VMEXIT_EXCP24_STR;
625         case VMEXIT_EXCP25:
626             return VMEXIT_EXCP25_STR;
627         case VMEXIT_EXCP26:
628             return VMEXIT_EXCP26_STR;
629         case VMEXIT_EXCP27:
630             return VMEXIT_EXCP27_STR;
631         case VMEXIT_EXCP28:
632             return VMEXIT_EXCP28_STR;
633         case VMEXIT_EXCP29:
634             return VMEXIT_EXCP29_STR;
635         case VMEXIT_EXCP30:
636             return VMEXIT_EXCP30_STR;
637         case VMEXIT_EXCP31:
638             return VMEXIT_EXCP31_STR;
639         case VMEXIT_INTR:
640             return VMEXIT_INTR_STR;
641         case VMEXIT_NMI:
642             return VMEXIT_NMI_STR;
643         case VMEXIT_SMI:
644             return VMEXIT_SMI_STR;
645         case VMEXIT_INIT:
646             return VMEXIT_INIT_STR;
647         case VMEXIT_VINITR:
648             return VMEXIT_VINITR_STR;
649         case VMEXIT_CR0_SEL_WRITE:
650             return VMEXIT_CR0_SEL_WRITE_STR;
651         case VMEXIT_IDTR_READ:
652             return VMEXIT_IDTR_READ_STR;
653         case VMEXIT_GDTR_READ:
654             return VMEXIT_GDTR_READ_STR;
655         case VMEXIT_LDTR_READ:
656             return VMEXIT_LDTR_READ_STR;
657         case VMEXIT_TR_READ:
658             return VMEXIT_TR_READ_STR;
659         case VMEXIT_IDTR_WRITE:
660             return VMEXIT_IDTR_WRITE_STR;
661         case VMEXIT_GDTR_WRITE:
662             return VMEXIT_GDTR_WRITE_STR;
663         case VMEXIT_LDTR_WRITE:
664             return VMEXIT_LDTR_WRITE_STR;
665         case VMEXIT_TR_WRITE:
666             return VMEXIT_TR_WRITE_STR;
667         case VMEXIT_RDTSC:
668             return VMEXIT_RDTSC_STR;
669         case VMEXIT_RDPMC:
670             return VMEXIT_RDPMC_STR;
671         case VMEXIT_PUSHF:
672             return VMEXIT_PUSHF_STR;
673         case VMEXIT_POPF:
674             return VMEXIT_POPF_STR;
675         case VMEXIT_CPUID:
676             return VMEXIT_CPUID_STR;
677         case VMEXIT_RSM:
678             return VMEXIT_RSM_STR;
679         case VMEXIT_IRET:
680             return VMEXIT_IRET_STR;
681         case VMEXIT_SWINT:
682             return VMEXIT_SWINT_STR;
683         case VMEXIT_INVD:
684             return VMEXIT_INVD_STR;
685         case VMEXIT_PAUSE:
686             return VMEXIT_PAUSE_STR;
687         case VMEXIT_HLT:
688             return VMEXIT_HLT_STR;
689         case VMEXIT_INVLPG:
690             return VMEXIT_INVLPG_STR;
691         case VMEXIT_INVLPGA:
692             return VMEXIT_INVLPGA_STR;
693         case VMEXIT_IOIO:
694             return VMEXIT_IOIO_STR;
695         case VMEXIT_MSR:
696             return VMEXIT_MSR_STR;
697         case VMEXIT_TASK_SWITCH:
698             return VMEXIT_TASK_SWITCH_STR;
699         case VMEXIT_FERR_FREEZE:
700             return VMEXIT_FERR_FREEZE_STR;
701         case VMEXIT_SHUTDOWN:
702             return VMEXIT_SHUTDOWN_STR;
703         case VMEXIT_VMRUN:
704             return VMEXIT_VMRUN_STR;
705         case VMEXIT_VMMCALL:
706             return VMEXIT_VMMCALL_STR;
707         case VMEXIT_VMLOAD:
708             return VMEXIT_VMLOAD_STR;
709         case VMEXIT_VMSAVE:
710             return VMEXIT_VMSAVE_STR;
711         case VMEXIT_STGI:
712             return VMEXIT_STGI_STR;
713         case VMEXIT_CLGI:
714             return VMEXIT_CLGI_STR;
715         case VMEXIT_SKINIT:
716             return VMEXIT_SKINIT_STR;
717         case VMEXIT_RDTSCP:
718             return VMEXIT_RDTSCP_STR;
719         case VMEXIT_ICEBP:
720             return VMEXIT_ICEBP_STR;
721         case VMEXIT_WBINVD:
722             return VMEXIT_WBINVD_STR;
723         case VMEXIT_MONITOR:
724             return VMEXIT_MONITOR_STR;
725         case VMEXIT_MWAIT:
726             return VMEXIT_MWAIT_STR;
727         case VMEXIT_MWAIT_CONDITIONAL:
728             return VMEXIT_MWAIT_CONDITIONAL_STR;
729         case VMEXIT_NPF:
730             return VMEXIT_NPF_STR;
731         case VMEXIT_INVALID_VMCB:
732             return VMEXIT_INVALID_VMCB_STR;
733     }
734     return NULL;
735 }