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>
12 #include <palacios/vmm_emulate.h>
15 extern struct vmm_os_hooks * os_hooks;
17 extern uint_t cpuid_ecx(uint_t op);
18 extern uint_t cpuid_edx(uint_t op);
19 extern void Get_MSR(uint_t MSR, uint_t * high_byte, uint_t * low_byte);
20 extern void Set_MSR(uint_t MSR, uint_t high_byte, uint_t low_byte);
21 extern uint_t launch_svm(vmcb_t * vmcb_addr);
22 extern void safe_svm_launch(vmcb_t * vmcb_addr, struct v3_gprs * gprs);
27 extern uint_t Get_CR3();
30 extern void DisableInts();
32 /* Checks machine SVM capability */
33 /* Implemented from: AMD Arch Manual 3, sect 15.4 */
34 int is_svm_capable() {
35 uint_t ret = cpuid_ecx(CPUID_FEATURE_IDS);
36 uint_t vm_cr_low = 0, vm_cr_high = 0;
39 if ((ret & CPUID_FEATURE_IDS_ecx_svm_avail) == 0) {
40 PrintDebug("SVM Not Available\n");
44 Get_MSR(SVM_VM_CR_MSR, &vm_cr_high, &vm_cr_low);
46 if ((ret & CPUID_SVM_REV_AND_FEATURE_IDS_edx_np) == 1) {
47 PrintDebug("Nested Paging not supported\n");
50 if ((vm_cr_low & SVM_VM_CR_MSR_svmdis) == 0) {
54 ret = cpuid_edx(CPUID_SVM_REV_AND_FEATURE_IDS);
56 if ((ret & CPUID_SVM_REV_AND_FEATURE_IDS_edx_svml) == 0) {
57 PrintDebug("SVM BIOS Disabled, not unlockable\n");
59 PrintDebug("SVM is locked with a key\n");
67 void Init_SVM(struct vmm_ctrl_ops * vmm_ops) {
72 // Enable SVM on the CPU
73 Get_MSR(EFER_MSR, &(msr.e_reg.high), &(msr.e_reg.low));
74 msr.e_reg.low |= EFER_MSR_svm_enable;
75 Set_MSR(EFER_MSR, 0, msr.e_reg.low);
77 PrintDebug("SVM Enabled\n");
80 // Setup the host state save area
81 host_state = os_hooks->allocate_pages(4);
84 msr.e_reg.low = (uint_t)host_state;
87 PrintDebug("Host State being saved at %x\n", (uint_t)host_state);
88 Set_MSR(SVM_VM_HSAVE_PA_MSR, msr.e_reg.high, msr.e_reg.low);
92 // Setup the SVM specific vmm operations
93 vmm_ops->init_guest = &init_svm_guest;
94 vmm_ops->start_guest = &start_svm_guest;
101 int init_svm_guest(struct guest_info *info) {
103 PrintDebug("Allocating VMCB\n");
104 info->vmm_data = (void*)Allocate_VMCB();
107 //PrintDebug("Generating Guest nested page tables\n");
108 // info->page_tables = NULL;
109 //info->page_tables = generate_guest_page_tables_64(&(info->mem_layout), &(info->mem_list));
110 //info->page_tables = generate_guest_page_tables(&(info->mem_layout), &(info->mem_list));
111 // PrintDebugPageTables(info->page_tables);
114 PrintDebug("Initializing VMCB (addr=%x)\n", info->vmm_data);
115 Init_VMCB_BIOS((vmcb_t*)(info->vmm_data), *info);
120 info->vm_regs.rdi = 0;
121 info->vm_regs.rsi = 0;
122 info->vm_regs.rbp = 0;
123 info->vm_regs.rsp = 0;
124 info->vm_regs.rbx = 0;
125 info->vm_regs.rdx = 0;
126 info->vm_regs.rcx = 0;
127 info->vm_regs.rax = 0;
133 // can we start a kernel thread here...
134 int start_svm_guest(struct guest_info *info) {
138 PrintDebug("Launching SVM VM (vmcb=%x)\n", info->vmm_data);
139 //PrintDebugVMCB((vmcb_t*)(info->vmm_data));
145 //PrintDebug("SVM Launch Args (vmcb=%x), (info=%x), (vm_regs=%x)\n", info->vmm_data, &(info->vm_regs));
146 //PrintDebug("Launching to RIP: %x\n", info->rip);
147 safe_svm_launch((vmcb_t*)(info->vmm_data), &(info->vm_regs));
148 //launch_svm((vmcb_t*)(info->vmm_data));
149 //PrintDebug("SVM Returned\n");
156 if (handle_svm_exit(info) != 0) {
157 vmcb_saved_state_t * guest_state = GET_VMCB_SAVE_STATE_AREA((vmcb_t*)(info->vmm_data));
159 addr_t linear_addr = 0;
161 PrintDebug("SVM ERROR!!\n");
164 PrintDebug("RIP: %x\n", guest_state->rip);
167 linear_addr = get_addr_linear(info, guest_state->rip, &(info->segments.cs));
170 PrintDebug("RIP Linear: %x\n", linear_addr);
172 guest_pa_to_host_pa(info, linear_addr, &host_addr);
174 PrintDebug("Host Address of rip = 0x%x\n", host_addr);
176 PrintDebug("Instr (15 bytes) at %x:\n", host_addr);
177 PrintTraceMemDump((char*)host_addr, 15);
187 vmcb_t * Allocate_VMCB() {
188 vmcb_t * vmcb_page = (vmcb_t*)os_hooks->allocate_pages(1);
191 memset(vmcb_page, 0, 4096);
198 void Init_VMCB(vmcb_t * vmcb, struct guest_info vm_info) {
199 vmcb_ctrl_t * ctrl_area = GET_VMCB_CTRL_AREA(vmcb);
200 vmcb_saved_state_t * guest_state = GET_VMCB_SAVE_STATE_AREA(vmcb);
204 guest_state->rsp = vm_info.vm_regs.rsp;
205 guest_state->rip = vm_info.rip;
208 //ctrl_area->instrs.instrs.CR0 = 1;
209 ctrl_area->cr_reads.cr0 = 1;
210 ctrl_area->cr_writes.cr0 = 1;
212 guest_state->efer |= EFER_MSR_svm_enable;
213 guest_state->rflags = 0x00000002; // The reserved bit is always 1
214 ctrl_area->svm_instrs.VMRUN = 1;
215 // guest_state->cr0 = 0x00000001; // PE
216 ctrl_area->guest_ASID = 1;
219 ctrl_area->exceptions.de = 1;
220 ctrl_area->exceptions.df = 1;
221 ctrl_area->exceptions.pf = 1;
222 ctrl_area->exceptions.ts = 1;
223 ctrl_area->exceptions.ss = 1;
224 ctrl_area->exceptions.ac = 1;
225 ctrl_area->exceptions.mc = 1;
226 ctrl_area->exceptions.gp = 1;
227 ctrl_area->exceptions.ud = 1;
228 ctrl_area->exceptions.np = 1;
229 ctrl_area->exceptions.of = 1;
230 ctrl_area->exceptions.nmi = 1;
232 guest_state->cs.selector = 0x0000;
233 guest_state->cs.limit=~0u;
234 guest_state->cs.base = guest_state->cs.selector<<4;
235 guest_state->cs.attrib.raw = 0xf3;
238 struct vmcb_selector *segregs [] = {&(guest_state->ss), &(guest_state->ds), &(guest_state->es), &(guest_state->fs), &(guest_state->gs), NULL};
239 for ( i = 0; segregs[i] != NULL; i++) {
240 struct vmcb_selector * seg = segregs[i];
242 seg->selector = 0x0000;
243 seg->base = seg->selector << 4;
244 seg->attrib.raw = 0xf3;
248 if (vm_info.io_map.num_ports > 0) {
249 vmm_io_hook_t * iter;
250 addr_t io_port_bitmap;
252 io_port_bitmap = (addr_t)os_hooks->allocate_pages(3);
253 memset((uchar_t*)io_port_bitmap, 0, PAGE_SIZE * 3);
255 ctrl_area->IOPM_BASE_PA = io_port_bitmap;
257 //PrintDebug("Setting up IO Map at 0x%x\n", io_port_bitmap);
259 FOREACH_IO_HOOK(vm_info.io_map, iter) {
260 ushort_t port = iter->port;
261 uchar_t * bitmap = (uchar_t *)io_port_bitmap;
263 bitmap += (port / 8);
264 PrintDebug("Setting Bit in block %x\n", bitmap);
265 *bitmap |= 1 << (port % 8);
269 //PrintDebugMemDump((uchar_t*)io_port_bitmap, PAGE_SIZE *2);
271 ctrl_area->instrs.IOIO_PROT = 1;
274 ctrl_area->instrs.INTR = 1;
278 if (vm_info.page_mode == SHADOW_PAGING) {
279 PrintDebug("Creating initial shadow page table\n");
280 vm_info.shdw_pg_state.shadow_cr3 |= ((addr_t)create_passthrough_pde32_pts(&vm_info) & ~0xfff);
281 PrintDebug("Created\n");
283 guest_state->cr3 = vm_info.shdw_pg_state.shadow_cr3;
285 ctrl_area->cr_reads.cr3 = 1;
286 ctrl_area->cr_writes.cr3 = 1;
289 ctrl_area->instrs.INVLPG = 1;
290 ctrl_area->instrs.INVLPGA = 1;
292 guest_state->g_pat = 0x7040600070406ULL;
294 guest_state->cr0 |= 0x80000000;
295 } else if (vm_info.page_mode == NESTED_PAGING) {
296 // Flush the TLB on entries/exits
297 //ctrl_area->TLB_CONTROL = 1;
299 // Enable Nested Paging
300 //ctrl_area->NP_ENABLE = 1;
302 //PrintDebug("NP_Enable at 0x%x\n", &(ctrl_area->NP_ENABLE));
304 // Set the Nested Page Table pointer
305 // ctrl_area->N_CR3 = ((addr_t)vm_info.page_tables);
306 // ctrl_area->N_CR3 = (addr_t)(vm_info.page_tables);
308 // ctrl_area->N_CR3 = Get_CR3();
309 // guest_state->cr3 |= (Get_CR3() & 0xfffff000);
311 // guest_state->g_pat = 0x7040600070406ULL;
320 void Init_VMCB_BIOS(vmcb_t * vmcb, struct guest_info vm_info) {
321 vmcb_ctrl_t * ctrl_area = GET_VMCB_CTRL_AREA(vmcb);
322 vmcb_saved_state_t * guest_state = GET_VMCB_SAVE_STATE_AREA(vmcb);
326 guest_state->rsp = vm_info.vm_regs.rsp;
327 // guest_state->rip = vm_info.rip;
328 guest_state->rip = 0xfff0;
330 guest_state->cpl = 0;
332 //ctrl_area->instrs.instrs.CR0 = 1;
333 ctrl_area->cr_reads.cr0 = 1;
334 ctrl_area->cr_writes.cr0 = 1;
336 guest_state->efer |= EFER_MSR_svm_enable;
337 guest_state->rflags = 0x00000002; // The reserved bit is always 1
338 ctrl_area->svm_instrs.VMRUN = 1;
339 ctrl_area->instrs.HLT = 1;
340 // guest_state->cr0 = 0x00000001; // PE
341 ctrl_area->guest_ASID = 1;
343 ctrl_area->exceptions.de = 1;
344 ctrl_area->exceptions.df = 1;
345 ctrl_area->exceptions.pf = 1;
346 ctrl_area->exceptions.ts = 1;
347 ctrl_area->exceptions.ss = 1;
348 ctrl_area->exceptions.ac = 1;
349 ctrl_area->exceptions.mc = 1;
350 ctrl_area->exceptions.gp = 1;
351 ctrl_area->exceptions.ud = 1;
352 ctrl_area->exceptions.np = 1;
353 ctrl_area->exceptions.of = 1;
354 ctrl_area->exceptions.nmi = 1;
356 vm_info.vm_regs.rdx = 0x00000f00;
358 guest_state->cr0 = 0x60000010;
360 guest_state->cs.selector = 0xf000;
361 guest_state->cs.limit=0xffff;
362 guest_state->cs.base = 0x0000000f0000LL;
363 guest_state->cs.attrib.raw = 0xf3;
366 struct vmcb_selector *segregs [] = {&(guest_state->ss), &(guest_state->ds), &(guest_state->es), &(guest_state->fs), &(guest_state->gs), NULL};
367 for ( i = 0; segregs[i] != NULL; i++) {
368 struct vmcb_selector * seg = segregs[i];
370 seg->selector = 0x0000;
371 // seg->base = seg->selector << 4;
372 seg->base = 0x00000000;
373 seg->attrib.raw = 0xf3;
377 guest_state->gdtr.limit = 0x0000ffff;
378 guest_state->gdtr.base = 0x0000000000000000LL;
379 guest_state->idtr.limit = 0x0000ffff;
380 guest_state->idtr.base = 0x0000000000000000LL;
382 guest_state->ldtr.selector = 0x0000;
383 guest_state->ldtr.limit = 0x0000ffff;
384 guest_state->ldtr.base = 0x0000000000000000LL;
385 guest_state->tr.selector = 0x0000;
386 guest_state->tr.limit = 0x0000ffff;
387 guest_state->tr.base = 0x0000000000000000LL;
390 guest_state->dr6 = 0x00000000ffff0ff0LL;
391 guest_state->dr7 = 0x0000000000000400LL;
393 if (vm_info.io_map.num_ports > 0) {
394 vmm_io_hook_t * iter;
395 addr_t io_port_bitmap;
397 io_port_bitmap = (addr_t)os_hooks->allocate_pages(3);
398 memset((uchar_t*)io_port_bitmap, 0, PAGE_SIZE * 3);
400 ctrl_area->IOPM_BASE_PA = io_port_bitmap;
402 //PrintDebug("Setting up IO Map at 0x%x\n", io_port_bitmap);
404 FOREACH_IO_HOOK(vm_info.io_map, iter) {
405 ushort_t port = iter->port;
406 uchar_t * bitmap = (uchar_t *)io_port_bitmap;
408 bitmap += (port / 8);
409 PrintDebug("Setting Bit for port 0x%x\n", port);
410 *bitmap |= 1 << (port % 8);
414 //PrintDebugMemDump((uchar_t*)io_port_bitmap, PAGE_SIZE *2);
416 ctrl_area->instrs.IOIO_PROT = 1;
421 PrintDebug("Exiting on interrupts\n");
422 ctrl_area->guest_ctrl.V_INTR_MASKING = 1;
423 ctrl_area->instrs.INTR = 1;
426 if (vm_info.page_mode == SHADOW_PAGING) {
427 PrintDebug("Creating initial shadow page table\n");
428 vm_info.shdw_pg_state.shadow_cr3 |= ((addr_t)create_passthrough_pde32_pts(&vm_info) & ~0xfff);
429 PrintDebug("Created\n");
431 guest_state->cr3 = vm_info.shdw_pg_state.shadow_cr3;
433 //PrintDebugPageTables((pde32_t*)(vm_info.shdw_pg_state.shadow_cr3.e_reg.low));
435 ctrl_area->cr_reads.cr3 = 1;
436 ctrl_area->cr_writes.cr3 = 1;
439 ctrl_area->instrs.INVLPG = 1;
440 ctrl_area->instrs.INVLPGA = 1;
442 guest_state->g_pat = 0x7040600070406ULL;
444 guest_state->cr0 |= 0x80000000;
445 } else if (vm_info.page_mode == NESTED_PAGING) {
446 // Flush the TLB on entries/exits
447 //ctrl_area->TLB_CONTROL = 1;
449 // Enable Nested Paging
450 //ctrl_area->NP_ENABLE = 1;
452 //PrintDebug("NP_Enable at 0x%x\n", &(ctrl_area->NP_ENABLE));
454 // Set the Nested Page Table pointer
455 // ctrl_area->N_CR3 = ((addr_t)vm_info.page_tables);
456 // ctrl_area->N_CR3 = (addr_t)(vm_info.page_tables);
458 // ctrl_area->N_CR3 = Get_CR3();
459 // guest_state->cr3 |= (Get_CR3() & 0xfffff000);
461 // guest_state->g_pat = 0x7040600070406ULL;
470 void Init_VMCB_pe(vmcb_t *vmcb, struct guest_info vm_info) {
471 vmcb_ctrl_t * ctrl_area = GET_VMCB_CTRL_AREA(vmcb);
472 vmcb_saved_state_t * guest_state = GET_VMCB_SAVE_STATE_AREA(vmcb);
476 guest_state->rsp = vm_info.vm_regs.rsp;
477 guest_state->rip = vm_info.rip;
480 /* I pretty much just gutted this from TVMM */
481 /* Note: That means its probably wrong */
483 // set the segment registers to mirror ours
484 guest_state->cs.selector = 1<<3;
485 guest_state->cs.attrib.fields.type = 0xa; // Code segment+read
486 guest_state->cs.attrib.fields.S = 1;
487 guest_state->cs.attrib.fields.P = 1;
488 guest_state->cs.attrib.fields.db = 1;
489 guest_state->cs.attrib.fields.G = 1;
490 guest_state->cs.limit = 0xfffff;
491 guest_state->cs.base = 0;
493 struct vmcb_selector *segregs [] = {&(guest_state->ss), &(guest_state->ds), &(guest_state->es), &(guest_state->fs), &(guest_state->gs), NULL};
494 for ( i = 0; segregs[i] != NULL; i++) {
495 struct vmcb_selector * seg = segregs[i];
497 seg->selector = 2<<3;
498 seg->attrib.fields.type = 0x2; // Data Segment+read/write
499 seg->attrib.fields.S = 1;
500 seg->attrib.fields.P = 1;
501 seg->attrib.fields.db = 1;
502 seg->attrib.fields.G = 1;
503 seg->limit = 0xfffff;
509 /* JRL THIS HAS TO GO */
511 // guest_state->tr.selector = GetTR_Selector();
512 guest_state->tr.attrib.fields.type = 0x9;
513 guest_state->tr.attrib.fields.P = 1;
514 // guest_state->tr.limit = GetTR_Limit();
515 //guest_state->tr.base = GetTR_Base();// - 0x2000;
523 guest_state->efer |= EFER_MSR_svm_enable;
524 guest_state->rflags = 0x00000002; // The reserved bit is always 1
525 ctrl_area->svm_instrs.VMRUN = 1;
526 guest_state->cr0 = 0x00000001; // PE
527 ctrl_area->guest_ASID = 1;
530 // guest_state->cpl = 0;
536 ctrl_area->cr_writes.cr4 = 1;
538 ctrl_area->exceptions.de = 1;
539 ctrl_area->exceptions.df = 1;
540 ctrl_area->exceptions.pf = 1;
541 ctrl_area->exceptions.ts = 1;
542 ctrl_area->exceptions.ss = 1;
543 ctrl_area->exceptions.ac = 1;
544 ctrl_area->exceptions.mc = 1;
545 ctrl_area->exceptions.gp = 1;
546 ctrl_area->exceptions.ud = 1;
547 ctrl_area->exceptions.np = 1;
548 ctrl_area->exceptions.of = 1;
549 ctrl_area->exceptions.nmi = 1;
553 ctrl_area->instrs.IOIO_PROT = 1;
554 ctrl_area->IOPM_BASE_PA = (uint_t)os_hooks->allocate_pages(3);
558 tmp_reg.r_reg = ctrl_area->IOPM_BASE_PA;
559 memset((void*)(tmp_reg.e_reg.low), 0xffffffff, PAGE_SIZE * 2);
562 ctrl_area->instrs.INTR = 1;
569 memset(gdt_buf, 0, 6);
570 memset(idt_buf, 0, 6);
573 uint_t gdt_base, idt_base;
574 ushort_t gdt_limit, idt_limit;
577 gdt_base = *(ulong_t*)((uchar_t*)gdt_buf + 2) & 0xffffffff;
578 gdt_limit = *(ushort_t*)(gdt_buf) & 0xffff;
579 PrintDebug("GDT: base: %x, limit: %x\n", gdt_base, gdt_limit);
582 idt_base = *(ulong_t*)(idt_buf + 2) & 0xffffffff;
583 idt_limit = *(ushort_t*)(idt_buf) & 0xffff;
584 PrintDebug("IDT: base: %x, limit: %x\n",idt_base, idt_limit);
587 // gdt_base -= 0x2000;
588 //idt_base -= 0x2000;
590 guest_state->gdtr.base = gdt_base;
591 guest_state->gdtr.limit = gdt_limit;
592 guest_state->idtr.base = idt_base;
593 guest_state->idtr.limit = idt_limit;
599 // also determine if CPU supports nested paging
601 if (vm_info.page_tables) {
603 // Flush the TLB on entries/exits
604 ctrl_area->TLB_CONTROL = 1;
606 // Enable Nested Paging
607 ctrl_area->NP_ENABLE = 1;
609 PrintDebug("NP_Enable at 0x%x\n", &(ctrl_area->NP_ENABLE));
611 // Set the Nested Page Table pointer
612 ctrl_area->N_CR3 |= ((addr_t)vm_info.page_tables & 0xfffff000);
615 // ctrl_area->N_CR3 = Get_CR3();
616 // guest_state->cr3 |= (Get_CR3() & 0xfffff000);
618 guest_state->g_pat = 0x7040600070406ULL;
620 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));
621 PrintDebug("Set Guest CR3: lo: 0x%x hi: 0x%x\n", (uint_t)*(&(guest_state->cr3)), (uint_t)*((unsigned char *)&(guest_state->cr3) + 4));
623 // guest_state->cr0 |= 0x80000000;
651 void Init_VMCB_Real(vmcb_t * vmcb, struct guest_info vm_info) {
652 vmcb_ctrl_t * ctrl_area = GET_VMCB_CTRL_AREA(vmcb);
653 vmcb_saved_state_t * guest_state = GET_VMCB_SAVE_STATE_AREA(vmcb);
657 guest_state->rsp = vm_info.vm_regs.rsp;
658 guest_state->rip = vm_info.rip;
661 guest_state->efer |= EFER_MSR_svm_enable;
662 guest_state->rflags = 0x00000002; // The reserved bit is always 1
663 ctrl_area->svm_instrs.instrs.VMRUN = 1;
664 ctrl_area->guest_ASID = 1;
665 guest_state->cr0 = 0x60000010;
668 ctrl_area->exceptions.de = 1;
669 ctrl_area->exceptions.df = 1;
670 ctrl_area->exceptions.pf = 1;
671 ctrl_area->exceptions.ts = 1;
672 ctrl_area->exceptions.ss = 1;
673 ctrl_area->exceptions.ac = 1;
674 ctrl_area->exceptions.mc = 1;
675 ctrl_area->exceptions.gp = 1;
676 ctrl_area->exceptions.ud = 1;
677 ctrl_area->exceptions.np = 1;
678 ctrl_area->exceptions.of = 1;
679 ctrl_area->exceptions.nmi = 1;
681 guest_state->cs.selector = 0xf000;
682 guest_state->cs.limit=0xffff;
683 guest_state->cs.base = 0xffff0000;
684 guest_state->cs.attrib.raw = 0x9a;
687 struct vmcb_selector *segregs [] = {&(guest_state->ss), &(guest_state->ds), &(guest_state->es), &(guest_state->fs), &(guest_state->gs), NULL};
688 for ( i = 0; segregs[i] != NULL; i++) {
689 struct vmcb_selector * seg = segregs[i];
691 seg->selector = 0x0000;
692 seg->base = 0xffff0000;
693 seg->attrib.raw = 0x9b;
700 // EAX, EBX, ECX, ESI, EDI, EBP, ESP == 0x0
703 guest_state->gdtr.base = 0;
704 guest_state->gdtr.limit = 0xffff;
705 guest_state->gdtr.attrib.raw = 0x0;
707 guest_state->idtr.base = 0;
708 guest_state->idtr.limit = 0xffff;
709 guest_state->idtr.attrib.raw = 0x0;
711 guest_state->ldtr.base = 0;
712 guest_state->ldtr.limit = 0xffff;
713 guest_state->ldtr.attrib.raw = 0x82;
715 guest_state->tr.base = 0;
716 guest_state->tr.limit = 0xffff;
717 guest_state->tr.attrib.raw = 0x83;
722 if (vm_info.io_map.num_ports > 0) {
723 vmm_io_hook_t * iter;
724 addr_t io_port_bitmap;
726 io_port_bitmap = (addr_t)os_hooks->allocate_pages(3);
727 memset((uchar_t*)io_port_bitmap, 0, PAGE_SIZE * 3);
729 ctrl_area->IOPM_BASE_PA = io_port_bitmap;
731 //PrintDebug("Setting up IO Map at 0x%x\n", io_port_bitmap);
733 FOREACH_IO_HOOK(vm_info.io_map, iter) {
734 ushort_t port = iter->port;
735 uchar_t * bitmap = (uchar_t *)io_port_bitmap;
737 bitmap += (port / 8);
738 PrintDebug("Setting Bit in block %x\n", bitmap);
739 *bitmap |= 1 << (port % 8);
742 ctrl_area->instrs.instrs.IOIO_PROT = 1;
745 ctrl_area->instrs.instrs.INTR = 1;
747 // also determine if CPU supports nested paging
749 if (vm_info.page_mode == SHADOW_PAGING) {
750 PrintDebug("Creating initial shadow page table\n");
751 vm_info.shdw_pg_state.shadow_cr3.e_reg.low |= ((addr_t)create_passthrough_pde32_pts(&vm_info) & ~0xfff);
752 PrintDebug("Created\n");
754 guest_state->cr3 = vm_info.shdw_pg_state.shadow_cr3.r_reg;
756 ctrl_area->cr_reads.crs.cr3 = 1;
757 ctrl_area->cr_writes.crs.cr3 = 1;
758 ctrl_area->cr_reads.crs.cr0 = 1;
759 ctrl_area->cr_writes.crs.cr0 = 1;
761 ctrl_area->instrs.instrs.INVLPG = 1;
762 ctrl_area->instrs.instrs.INVLPGA = 1;
765 guest_state->g_pat = 0x7040600070406ULL;
767 vm_info.shdw_pg_state.guest_cr0.e_reg.low = guest_state->cr0;
768 guest_state->cr0 |= 0x80000000;
769 } else if (vm_info.page_mode == NESTED_PAGING) {
770 // Flush the TLB on entries/exits
771 //ctrl_area->TLB_CONTROL = 1;
773 // Enable Nested Paging
774 //ctrl_area->NP_ENABLE = 1;
776 //PrintDebug("NP_Enable at 0x%x\n", &(ctrl_area->NP_ENABLE));
778 // Set the Nested Page Table pointer
779 // ctrl_area->N_CR3 = ((addr_t)vm_info.page_tables);
780 // ctrl_area->N_CR3 = (addr_t)(vm_info.page_tables);
782 // ctrl_area->N_CR3 = Get_CR3();
783 // guest_state->cr3 |= (Get_CR3() & 0xfffff000);
785 // guest_state->g_pat = 0x7040600070406ULL;