1 #include <palacios/svm.h>
2 #include <palacios/vmm.h>
4 #include <palacios/vmcb.h>
5 #include <palacios/vmm_mem.h>
6 #include <palacios/vmm_paging.h>
7 #include <palacios/svm_handler.h>
9 #include <palacios/vmm_debug.h>
10 #include <palacios/vm_guest_mem.h>
14 extern struct vmm_os_hooks * os_hooks;
16 extern uint_t cpuid_ecx(uint_t op);
17 extern uint_t cpuid_edx(uint_t op);
18 extern void Get_MSR(uint_t MSR, uint_t * high_byte, uint_t * low_byte);
19 extern void Set_MSR(uint_t MSR, uint_t high_byte, uint_t low_byte);
20 extern uint_t launch_svm(vmcb_t * vmcb_addr);
21 extern void safe_svm_launch(vmcb_t * vmcb_addr, struct guest_gprs * gprs);
26 extern uint_t Get_CR3();
29 extern void DisableInts();
31 /* Checks machine SVM capability */
32 /* Implemented from: AMD Arch Manual 3, sect 15.4 */
33 int is_svm_capable() {
34 uint_t ret = cpuid_ecx(CPUID_FEATURE_IDS);
35 uint_t vm_cr_low = 0, vm_cr_high = 0;
38 if ((ret & CPUID_FEATURE_IDS_ecx_svm_avail) == 0) {
39 PrintDebug("SVM Not Available\n");
43 Get_MSR(SVM_VM_CR_MSR, &vm_cr_high, &vm_cr_low);
45 if ((ret & CPUID_SVM_REV_AND_FEATURE_IDS_edx_np) == 1) {
46 PrintDebug("Nested Paging not supported\n");
49 if ((vm_cr_low & SVM_VM_CR_MSR_svmdis) == 0) {
53 ret = cpuid_edx(CPUID_SVM_REV_AND_FEATURE_IDS);
55 if ((ret & CPUID_SVM_REV_AND_FEATURE_IDS_edx_svml) == 0) {
56 PrintDebug("SVM BIOS Disabled, not unlockable\n");
58 PrintDebug("SVM is locked with a key\n");
66 void Init_SVM(struct vmm_ctrl_ops * vmm_ops) {
71 // Enable SVM on the CPU
72 Get_MSR(EFER_MSR, &(msr.e_reg.high), &(msr.e_reg.low));
73 msr.e_reg.low |= EFER_MSR_svm_enable;
74 Set_MSR(EFER_MSR, 0, msr.e_reg.low);
76 PrintDebug("SVM Enabled\n");
79 // Setup the host state save area
80 host_state = os_hooks->allocate_pages(4);
83 msr.e_reg.low = (uint_t)host_state;
86 PrintDebug("Host State being saved at %x\n", (uint_t)host_state);
87 Set_MSR(SVM_VM_HSAVE_PA_MSR, msr.e_reg.high, msr.e_reg.low);
91 // Setup the SVM specific vmm operations
92 vmm_ops->init_guest = &init_svm_guest;
93 vmm_ops->start_guest = &start_svm_guest;
100 int init_svm_guest(struct guest_info *info) {
102 PrintDebug("Allocating VMCB\n");
103 info->vmm_data = (void*)Allocate_VMCB();
106 //PrintDebug("Generating Guest nested page tables\n");
107 // info->page_tables = NULL;
108 //info->page_tables = generate_guest_page_tables_64(&(info->mem_layout), &(info->mem_list));
109 //info->page_tables = generate_guest_page_tables(&(info->mem_layout), &(info->mem_list));
110 // PrintDebugPageTables(info->page_tables);
113 PrintDebug("Initializing VMCB (addr=%x)\n", info->vmm_data);
114 Init_VMCB_BIOS((vmcb_t*)(info->vmm_data), *info);
119 info->vm_regs.rdi = 0;
120 info->vm_regs.rsi = 0;
121 info->vm_regs.rbp = 0;
122 info->vm_regs.rsp = 0;
123 info->vm_regs.rbx = 0;
124 info->vm_regs.rdx = 0;
125 info->vm_regs.rcx = 0;
126 info->vm_regs.rax = 0;
132 // can we start a kernel thread here...
133 int start_svm_guest(struct guest_info *info) {
137 PrintDebug("Launching SVM VM (vmcb=%x)\n", info->vmm_data);
138 //PrintDebugVMCB((vmcb_t*)(info->vmm_data));
144 //PrintDebug("SVM Launch Args (vmcb=%x), (info=%x), (vm_regs=%x)\n", info->vmm_data, &(info->vm_regs));
145 //PrintDebug("Launching to RIP: %x\n", info->rip);
146 safe_svm_launch((vmcb_t*)(info->vmm_data), &(info->vm_regs));
147 //launch_svm((vmcb_t*)(info->vmm_data));
148 //PrintDebug("SVM Returned\n");
155 if (handle_svm_exit(info) != 0) {
156 PrintDebug("SVM ERROR!!\n");
165 vmcb_t * Allocate_VMCB() {
166 vmcb_t * vmcb_page = (vmcb_t*)os_hooks->allocate_pages(1);
169 memset(vmcb_page, 0, 4096);
176 void Init_VMCB(vmcb_t * vmcb, struct guest_info vm_info) {
177 vmcb_ctrl_t * ctrl_area = GET_VMCB_CTRL_AREA(vmcb);
178 vmcb_saved_state_t * guest_state = GET_VMCB_SAVE_STATE_AREA(vmcb);
182 guest_state->rsp = vm_info.vm_regs.rsp;
183 guest_state->rip = vm_info.rip;
186 //ctrl_area->instrs.instrs.CR0 = 1;
187 ctrl_area->cr_reads.cr0 = 1;
188 ctrl_area->cr_writes.cr0 = 1;
190 guest_state->efer |= EFER_MSR_svm_enable;
191 guest_state->rflags = 0x00000002; // The reserved bit is always 1
192 ctrl_area->svm_instrs.VMRUN = 1;
193 // guest_state->cr0 = 0x00000001; // PE
194 ctrl_area->guest_ASID = 1;
197 ctrl_area->exceptions.de = 1;
198 ctrl_area->exceptions.df = 1;
199 ctrl_area->exceptions.pf = 1;
200 ctrl_area->exceptions.ts = 1;
201 ctrl_area->exceptions.ss = 1;
202 ctrl_area->exceptions.ac = 1;
203 ctrl_area->exceptions.mc = 1;
204 ctrl_area->exceptions.gp = 1;
205 ctrl_area->exceptions.ud = 1;
206 ctrl_area->exceptions.np = 1;
207 ctrl_area->exceptions.of = 1;
208 ctrl_area->exceptions.nmi = 1;
210 guest_state->cs.selector = 0x0000;
211 guest_state->cs.limit=~0u;
212 guest_state->cs.base = guest_state->cs.selector<<4;
213 guest_state->cs.attrib.raw = 0xf3;
216 struct vmcb_selector *segregs [] = {&(guest_state->ss), &(guest_state->ds), &(guest_state->es), &(guest_state->fs), &(guest_state->gs), NULL};
217 for ( i = 0; segregs[i] != NULL; i++) {
218 struct vmcb_selector * seg = segregs[i];
220 seg->selector = 0x0000;
221 seg->base = seg->selector << 4;
222 seg->attrib.raw = 0xf3;
226 if (vm_info.io_map.num_ports > 0) {
227 vmm_io_hook_t * iter;
228 addr_t io_port_bitmap;
230 io_port_bitmap = (addr_t)os_hooks->allocate_pages(3);
231 memset((uchar_t*)io_port_bitmap, 0, PAGE_SIZE * 3);
233 ctrl_area->IOPM_BASE_PA = io_port_bitmap;
235 //PrintDebug("Setting up IO Map at 0x%x\n", io_port_bitmap);
237 FOREACH_IO_HOOK(vm_info.io_map, iter) {
238 ushort_t port = iter->port;
239 uchar_t * bitmap = (uchar_t *)io_port_bitmap;
241 bitmap += (port / 8);
242 PrintDebug("Setting Bit in block %x\n", bitmap);
243 *bitmap |= 1 << (port % 8);
247 //PrintDebugMemDump((uchar_t*)io_port_bitmap, PAGE_SIZE *2);
249 ctrl_area->instrs.IOIO_PROT = 1;
252 ctrl_area->instrs.INTR = 1;
256 if (vm_info.page_mode == SHADOW_PAGING) {
257 PrintDebug("Creating initial shadow page table\n");
258 vm_info.shdw_pg_state.shadow_cr3.e_reg.low |= ((addr_t)create_passthrough_pde32_pts(&vm_info) & ~0xfff);
259 PrintDebug("Created\n");
261 guest_state->cr3 = vm_info.shdw_pg_state.shadow_cr3.r_reg;
263 ctrl_area->cr_reads.cr3 = 1;
264 ctrl_area->cr_writes.cr3 = 1;
267 ctrl_area->instrs.INVLPG = 1;
268 ctrl_area->instrs.INVLPGA = 1;
270 guest_state->g_pat = 0x7040600070406ULL;
272 guest_state->cr0 |= 0x80000000;
273 } else if (vm_info.page_mode == NESTED_PAGING) {
274 // Flush the TLB on entries/exits
275 //ctrl_area->TLB_CONTROL = 1;
277 // Enable Nested Paging
278 //ctrl_area->NP_ENABLE = 1;
280 //PrintDebug("NP_Enable at 0x%x\n", &(ctrl_area->NP_ENABLE));
282 // Set the Nested Page Table pointer
283 // ctrl_area->N_CR3 = ((addr_t)vm_info.page_tables);
284 // ctrl_area->N_CR3 = (addr_t)(vm_info.page_tables);
286 // ctrl_area->N_CR3 = Get_CR3();
287 // guest_state->cr3 |= (Get_CR3() & 0xfffff000);
289 // guest_state->g_pat = 0x7040600070406ULL;
298 void Init_VMCB_BIOS(vmcb_t * vmcb, struct guest_info vm_info) {
299 vmcb_ctrl_t * ctrl_area = GET_VMCB_CTRL_AREA(vmcb);
300 vmcb_saved_state_t * guest_state = GET_VMCB_SAVE_STATE_AREA(vmcb);
304 guest_state->rsp = vm_info.vm_regs.rsp;
305 // guest_state->rip = vm_info.rip;
306 guest_state->rip = 0xfff0;
308 //ctrl_area->instrs.instrs.CR0 = 1;
309 ctrl_area->cr_reads.cr0 = 1;
310 ctrl_area->cr_writes.cr0 = 1;
312 guest_state->efer |= EFER_MSR_svm_enable;
313 guest_state->rflags = 0x00000002; // The reserved bit is always 1
314 ctrl_area->svm_instrs.VMRUN = 1;
315 ctrl_area->instrs.HLT = 1;
316 // guest_state->cr0 = 0x00000001; // PE
317 ctrl_area->guest_ASID = 1;
319 ctrl_area->exceptions.de = 1;
320 ctrl_area->exceptions.df = 1;
321 ctrl_area->exceptions.pf = 1;
322 ctrl_area->exceptions.ts = 1;
323 ctrl_area->exceptions.ss = 1;
324 ctrl_area->exceptions.ac = 1;
325 ctrl_area->exceptions.mc = 1;
326 ctrl_area->exceptions.gp = 1;
327 ctrl_area->exceptions.ud = 1;
328 ctrl_area->exceptions.np = 1;
329 ctrl_area->exceptions.of = 1;
330 ctrl_area->exceptions.nmi = 1;
332 vm_info.vm_regs.rdx = 0x00000f00;
334 guest_state->cr0 = 0x60000010;
336 guest_state->cs.selector = 0xf000;
337 guest_state->cs.limit=0xffff;
338 guest_state->cs.base = 0x0000000f0000LL;
339 guest_state->cs.attrib.raw = 0xf3;
342 struct vmcb_selector *segregs [] = {&(guest_state->ss), &(guest_state->ds), &(guest_state->es), &(guest_state->fs), &(guest_state->gs), NULL};
343 for ( i = 0; segregs[i] != NULL; i++) {
344 struct vmcb_selector * seg = segregs[i];
346 seg->selector = 0x0000;
347 // seg->base = seg->selector << 4;
348 seg->base = 0x00000000;
349 seg->attrib.raw = 0xf3;
353 guest_state->gdtr.limit = 0x0000ffff;
354 guest_state->gdtr.base = 0x0000000000000000LL;
355 guest_state->idtr.limit = 0x0000ffff;
356 guest_state->idtr.base = 0x0000000000000000LL;
358 guest_state->ldtr.selector = 0x0000;
359 guest_state->ldtr.limit = 0x0000ffff;
360 guest_state->ldtr.base = 0x0000000000000000LL;
361 guest_state->tr.selector = 0x0000;
362 guest_state->tr.limit = 0x0000ffff;
363 guest_state->tr.base = 0x0000000000000000LL;
366 guest_state->dr6 = 0x00000000ffff0ff0LL;
367 guest_state->dr7 = 0x0000000000000400LL;
369 if (vm_info.io_map.num_ports > 0) {
370 vmm_io_hook_t * iter;
371 addr_t io_port_bitmap;
373 io_port_bitmap = (addr_t)os_hooks->allocate_pages(3);
374 memset((uchar_t*)io_port_bitmap, 0, PAGE_SIZE * 3);
376 ctrl_area->IOPM_BASE_PA = io_port_bitmap;
378 //PrintDebug("Setting up IO Map at 0x%x\n", io_port_bitmap);
380 FOREACH_IO_HOOK(vm_info.io_map, iter) {
381 ushort_t port = iter->port;
382 uchar_t * bitmap = (uchar_t *)io_port_bitmap;
384 bitmap += (port / 8);
385 PrintDebug("Setting Bit for port 0x%x\n", port);
386 *bitmap |= 1 << (port % 8);
390 //PrintDebugMemDump((uchar_t*)io_port_bitmap, PAGE_SIZE *2);
392 ctrl_area->instrs.IOIO_PROT = 1;
397 PrintDebug("Exiting on interrupts\n");
398 ctrl_area->guest_ctrl.V_INTR_MASKING = 1;
399 ctrl_area->instrs.INTR = 1;
402 if (vm_info.page_mode == SHADOW_PAGING) {
403 PrintDebug("Creating initial shadow page table\n");
404 vm_info.shdw_pg_state.shadow_cr3.e_reg.low |= ((addr_t)create_passthrough_pde32_pts(&vm_info) & ~0xfff);
405 PrintDebug("Created\n");
407 guest_state->cr3 = vm_info.shdw_pg_state.shadow_cr3.r_reg;
409 //PrintDebugPageTables((pde32_t*)(vm_info.shdw_pg_state.shadow_cr3.e_reg.low));
411 ctrl_area->cr_reads.cr3 = 1;
412 ctrl_area->cr_writes.cr3 = 1;
415 ctrl_area->instrs.INVLPG = 1;
416 ctrl_area->instrs.INVLPGA = 1;
418 guest_state->g_pat = 0x7040600070406ULL;
420 guest_state->cr0 |= 0x80000000;
421 } else if (vm_info.page_mode == NESTED_PAGING) {
422 // Flush the TLB on entries/exits
423 //ctrl_area->TLB_CONTROL = 1;
425 // Enable Nested Paging
426 //ctrl_area->NP_ENABLE = 1;
428 //PrintDebug("NP_Enable at 0x%x\n", &(ctrl_area->NP_ENABLE));
430 // Set the Nested Page Table pointer
431 // ctrl_area->N_CR3 = ((addr_t)vm_info.page_tables);
432 // ctrl_area->N_CR3 = (addr_t)(vm_info.page_tables);
434 // ctrl_area->N_CR3 = Get_CR3();
435 // guest_state->cr3 |= (Get_CR3() & 0xfffff000);
437 // guest_state->g_pat = 0x7040600070406ULL;
446 void Init_VMCB_pe(vmcb_t *vmcb, struct guest_info vm_info) {
447 vmcb_ctrl_t * ctrl_area = GET_VMCB_CTRL_AREA(vmcb);
448 vmcb_saved_state_t * guest_state = GET_VMCB_SAVE_STATE_AREA(vmcb);
452 guest_state->rsp = vm_info.vm_regs.rsp;
453 guest_state->rip = vm_info.rip;
456 /* I pretty much just gutted this from TVMM */
457 /* Note: That means its probably wrong */
459 // set the segment registers to mirror ours
460 guest_state->cs.selector = 1<<3;
461 guest_state->cs.attrib.fields.type = 0xa; // Code segment+read
462 guest_state->cs.attrib.fields.S = 1;
463 guest_state->cs.attrib.fields.P = 1;
464 guest_state->cs.attrib.fields.db = 1;
465 guest_state->cs.attrib.fields.G = 1;
466 guest_state->cs.limit = 0xfffff;
467 guest_state->cs.base = 0;
469 struct vmcb_selector *segregs [] = {&(guest_state->ss), &(guest_state->ds), &(guest_state->es), &(guest_state->fs), &(guest_state->gs), NULL};
470 for ( i = 0; segregs[i] != NULL; i++) {
471 struct vmcb_selector * seg = segregs[i];
473 seg->selector = 2<<3;
474 seg->attrib.fields.type = 0x2; // Data Segment+read/write
475 seg->attrib.fields.S = 1;
476 seg->attrib.fields.P = 1;
477 seg->attrib.fields.db = 1;
478 seg->attrib.fields.G = 1;
479 seg->limit = 0xfffff;
485 /* JRL THIS HAS TO GO */
487 // guest_state->tr.selector = GetTR_Selector();
488 guest_state->tr.attrib.fields.type = 0x9;
489 guest_state->tr.attrib.fields.P = 1;
490 // guest_state->tr.limit = GetTR_Limit();
491 //guest_state->tr.base = GetTR_Base();// - 0x2000;
499 guest_state->efer |= EFER_MSR_svm_enable;
500 guest_state->rflags = 0x00000002; // The reserved bit is always 1
501 ctrl_area->svm_instrs.VMRUN = 1;
502 guest_state->cr0 = 0x00000001; // PE
503 ctrl_area->guest_ASID = 1;
506 // guest_state->cpl = 0;
512 ctrl_area->cr_writes.cr4 = 1;
514 ctrl_area->exceptions.de = 1;
515 ctrl_area->exceptions.df = 1;
516 ctrl_area->exceptions.pf = 1;
517 ctrl_area->exceptions.ts = 1;
518 ctrl_area->exceptions.ss = 1;
519 ctrl_area->exceptions.ac = 1;
520 ctrl_area->exceptions.mc = 1;
521 ctrl_area->exceptions.gp = 1;
522 ctrl_area->exceptions.ud = 1;
523 ctrl_area->exceptions.np = 1;
524 ctrl_area->exceptions.of = 1;
525 ctrl_area->exceptions.nmi = 1;
529 ctrl_area->instrs.IOIO_PROT = 1;
530 ctrl_area->IOPM_BASE_PA = (uint_t)os_hooks->allocate_pages(3);
534 tmp_reg.r_reg = ctrl_area->IOPM_BASE_PA;
535 memset((void*)(tmp_reg.e_reg.low), 0xffffffff, PAGE_SIZE * 2);
538 ctrl_area->instrs.INTR = 1;
545 memset(gdt_buf, 0, 6);
546 memset(idt_buf, 0, 6);
549 uint_t gdt_base, idt_base;
550 ushort_t gdt_limit, idt_limit;
553 gdt_base = *(ulong_t*)((uchar_t*)gdt_buf + 2) & 0xffffffff;
554 gdt_limit = *(ushort_t*)(gdt_buf) & 0xffff;
555 PrintDebug("GDT: base: %x, limit: %x\n", gdt_base, gdt_limit);
558 idt_base = *(ulong_t*)(idt_buf + 2) & 0xffffffff;
559 idt_limit = *(ushort_t*)(idt_buf) & 0xffff;
560 PrintDebug("IDT: base: %x, limit: %x\n",idt_base, idt_limit);
563 // gdt_base -= 0x2000;
564 //idt_base -= 0x2000;
566 guest_state->gdtr.base = gdt_base;
567 guest_state->gdtr.limit = gdt_limit;
568 guest_state->idtr.base = idt_base;
569 guest_state->idtr.limit = idt_limit;
575 // also determine if CPU supports nested paging
577 if (vm_info.page_tables) {
579 // Flush the TLB on entries/exits
580 ctrl_area->TLB_CONTROL = 1;
582 // Enable Nested Paging
583 ctrl_area->NP_ENABLE = 1;
585 PrintDebug("NP_Enable at 0x%x\n", &(ctrl_area->NP_ENABLE));
587 // Set the Nested Page Table pointer
588 ctrl_area->N_CR3 |= ((addr_t)vm_info.page_tables & 0xfffff000);
591 // ctrl_area->N_CR3 = Get_CR3();
592 // guest_state->cr3 |= (Get_CR3() & 0xfffff000);
594 guest_state->g_pat = 0x7040600070406ULL;
596 PrintDebug("Set Nested CR3: lo: 0x%x hi: 0x%x\n", (uint_t)*(&(ctrl_area->N_CR3)), (uint_t)*((unsigned char *)&(ctrl_area->N_CR3) + 4));
597 PrintDebug("Set Guest CR3: lo: 0x%x hi: 0x%x\n", (uint_t)*(&(guest_state->cr3)), (uint_t)*((unsigned char *)&(guest_state->cr3) + 4));
599 // guest_state->cr0 |= 0x80000000;
627 void Init_VMCB_Real(vmcb_t * vmcb, struct guest_info vm_info) {
628 vmcb_ctrl_t * ctrl_area = GET_VMCB_CTRL_AREA(vmcb);
629 vmcb_saved_state_t * guest_state = GET_VMCB_SAVE_STATE_AREA(vmcb);
633 guest_state->rsp = vm_info.vm_regs.rsp;
634 guest_state->rip = vm_info.rip;
637 guest_state->efer |= EFER_MSR_svm_enable;
638 guest_state->rflags = 0x00000002; // The reserved bit is always 1
639 ctrl_area->svm_instrs.instrs.VMRUN = 1;
640 ctrl_area->guest_ASID = 1;
641 guest_state->cr0 = 0x60000010;
644 ctrl_area->exceptions.de = 1;
645 ctrl_area->exceptions.df = 1;
646 ctrl_area->exceptions.pf = 1;
647 ctrl_area->exceptions.ts = 1;
648 ctrl_area->exceptions.ss = 1;
649 ctrl_area->exceptions.ac = 1;
650 ctrl_area->exceptions.mc = 1;
651 ctrl_area->exceptions.gp = 1;
652 ctrl_area->exceptions.ud = 1;
653 ctrl_area->exceptions.np = 1;
654 ctrl_area->exceptions.of = 1;
655 ctrl_area->exceptions.nmi = 1;
657 guest_state->cs.selector = 0xf000;
658 guest_state->cs.limit=0xffff;
659 guest_state->cs.base = 0xffff0000;
660 guest_state->cs.attrib.raw = 0x9a;
663 struct vmcb_selector *segregs [] = {&(guest_state->ss), &(guest_state->ds), &(guest_state->es), &(guest_state->fs), &(guest_state->gs), NULL};
664 for ( i = 0; segregs[i] != NULL; i++) {
665 struct vmcb_selector * seg = segregs[i];
667 seg->selector = 0x0000;
668 seg->base = 0xffff0000;
669 seg->attrib.raw = 0x9b;
676 // EAX, EBX, ECX, ESI, EDI, EBP, ESP == 0x0
679 guest_state->gdtr.base = 0;
680 guest_state->gdtr.limit = 0xffff;
681 guest_state->gdtr.attrib.raw = 0x0;
683 guest_state->idtr.base = 0;
684 guest_state->idtr.limit = 0xffff;
685 guest_state->idtr.attrib.raw = 0x0;
687 guest_state->ldtr.base = 0;
688 guest_state->ldtr.limit = 0xffff;
689 guest_state->ldtr.attrib.raw = 0x82;
691 guest_state->tr.base = 0;
692 guest_state->tr.limit = 0xffff;
693 guest_state->tr.attrib.raw = 0x83;
698 if (vm_info.io_map.num_ports > 0) {
699 vmm_io_hook_t * iter;
700 addr_t io_port_bitmap;
702 io_port_bitmap = (addr_t)os_hooks->allocate_pages(3);
703 memset((uchar_t*)io_port_bitmap, 0, PAGE_SIZE * 3);
705 ctrl_area->IOPM_BASE_PA = io_port_bitmap;
707 //PrintDebug("Setting up IO Map at 0x%x\n", io_port_bitmap);
709 FOREACH_IO_HOOK(vm_info.io_map, iter) {
710 ushort_t port = iter->port;
711 uchar_t * bitmap = (uchar_t *)io_port_bitmap;
713 bitmap += (port / 8);
714 PrintDebug("Setting Bit in block %x\n", bitmap);
715 *bitmap |= 1 << (port % 8);
718 ctrl_area->instrs.instrs.IOIO_PROT = 1;
721 ctrl_area->instrs.instrs.INTR = 1;
723 // also determine if CPU supports nested paging
725 if (vm_info.page_mode == SHADOW_PAGING) {
726 PrintDebug("Creating initial shadow page table\n");
727 vm_info.shdw_pg_state.shadow_cr3.e_reg.low |= ((addr_t)create_passthrough_pde32_pts(&vm_info) & ~0xfff);
728 PrintDebug("Created\n");
730 guest_state->cr3 = vm_info.shdw_pg_state.shadow_cr3.r_reg;
732 ctrl_area->cr_reads.crs.cr3 = 1;
733 ctrl_area->cr_writes.crs.cr3 = 1;
734 ctrl_area->cr_reads.crs.cr0 = 1;
735 ctrl_area->cr_writes.crs.cr0 = 1;
737 ctrl_area->instrs.instrs.INVLPG = 1;
738 ctrl_area->instrs.instrs.INVLPGA = 1;
741 guest_state->g_pat = 0x7040600070406ULL;
743 vm_info.shdw_pg_state.guest_cr0.e_reg.low = guest_state->cr0;
744 guest_state->cr0 |= 0x80000000;
745 } else if (vm_info.page_mode == NESTED_PAGING) {
746 // Flush the TLB on entries/exits
747 //ctrl_area->TLB_CONTROL = 1;
749 // Enable Nested Paging
750 //ctrl_area->NP_ENABLE = 1;
752 //PrintDebug("NP_Enable at 0x%x\n", &(ctrl_area->NP_ENABLE));
754 // Set the Nested Page Table pointer
755 // ctrl_area->N_CR3 = ((addr_t)vm_info.page_tables);
756 // ctrl_area->N_CR3 = (addr_t)(vm_info.page_tables);
758 // ctrl_area->N_CR3 = Get_CR3();
759 // guest_state->cr3 |= (Get_CR3() & 0xfffff000);
761 // guest_state->g_pat = 0x7040600070406ULL;