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.
6 * The V3VEE Project is a joint project between Northwestern University
7 * and the University of New Mexico. You can find out more at
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.
14 * Author: Jack Lange <jarusl@cs.northwestern.edu>
16 * This is free software. You are permitted to use,
17 * redistribute, and modify it as specified in the file "V3VEE_LICENSE".
24 #include <palacios/svm.h>
25 #include <palacios/vmm.h>
27 #include <palacios/vmcb.h>
28 #include <palacios/vmm_mem.h>
29 #include <palacios/vmm_paging.h>
30 #include <palacios/svm_handler.h>
32 #include <palacios/vmm_debug.h>
33 #include <palacios/vm_guest_mem.h>
35 #include <palacios/vmm_decoder.h>
36 #include <palacios/vmm_string.h>
37 #include <palacios/vmm_lowlevel.h>
42 extern uint_t launch_svm(vmcb_t * vmcb_addr);
43 extern void safe_svm_launch(vmcb_t * vmcb_addr, struct v3_gprs * gprs);
48 extern uint_t Get_CR3();
58 static vmcb_t * Allocate_VMCB() {
59 vmcb_t * vmcb_page = (vmcb_t *)V3_AllocPages(1);
61 memset(vmcb_page, 0, 4096);
70 static void Init_VMCB_BIOS(vmcb_t * vmcb, struct guest_info *vm_info) {
71 vmcb_ctrl_t * ctrl_area = GET_VMCB_CTRL_AREA(vmcb);
72 vmcb_saved_state_t * guest_state = GET_VMCB_SAVE_STATE_AREA(vmcb);
76 guest_state->rsp = vm_info->vm_regs.rsp;
77 // guest_state->rip = vm_info->rip;
78 guest_state->rip = 0xfff0;
82 //ctrl_area->instrs.instrs.CR0 = 1;
83 ctrl_area->cr_reads.cr0 = 1;
84 ctrl_area->cr_writes.cr0 = 1;
86 guest_state->efer |= EFER_MSR_svm_enable;
87 guest_state->rflags = 0x00000002; // The reserved bit is always 1
88 ctrl_area->svm_instrs.VMRUN = 1;
89 ctrl_area->svm_instrs.VMMCALL = 1;
90 ctrl_area->svm_instrs.VMLOAD = 1;
91 ctrl_area->svm_instrs.VMSAVE = 1;
92 ctrl_area->svm_instrs.STGI = 1;
93 ctrl_area->svm_instrs.CLGI = 1;
94 ctrl_area->svm_instrs.SKINIT = 1;
95 ctrl_area->svm_instrs.RDTSCP = 1;
96 ctrl_area->svm_instrs.ICEBP = 1;
97 ctrl_area->svm_instrs.WBINVD = 1;
98 ctrl_area->svm_instrs.MONITOR = 1;
99 ctrl_area->svm_instrs.MWAIT_always = 1;
100 ctrl_area->svm_instrs.MWAIT_if_armed = 1;
103 ctrl_area->instrs.HLT = 1;
104 // guest_state->cr0 = 0x00000001; // PE
105 ctrl_area->guest_ASID = 1;
109 ctrl_area->exceptions.de = 1;
110 ctrl_area->exceptions.df = 1;
112 ctrl_area->exceptions.ts = 1;
113 ctrl_area->exceptions.ss = 1;
114 ctrl_area->exceptions.ac = 1;
115 ctrl_area->exceptions.mc = 1;
116 ctrl_area->exceptions.gp = 1;
117 ctrl_area->exceptions.ud = 1;
118 ctrl_area->exceptions.np = 1;
119 ctrl_area->exceptions.of = 1;
121 ctrl_area->exceptions.nmi = 1;
123 // Debug of boot on physical machines - 7/14/08
124 ctrl_area->instrs.NMI=1;
125 ctrl_area->instrs.SMI=1;
126 ctrl_area->instrs.INIT=1;
127 ctrl_area->instrs.PAUSE=1;
128 ctrl_area->instrs.shutdown_evts=1;
132 vm_info->vm_regs.rdx = 0x00000f00;
134 guest_state->cr0 = 0x60000010;
136 guest_state->cs.selector = 0xf000;
137 guest_state->cs.limit=0xffff;
138 guest_state->cs.base = 0x0000000f0000LL;
139 guest_state->cs.attrib.raw = 0xf3;
142 struct vmcb_selector *segregs [] = {&(guest_state->ss), &(guest_state->ds), &(guest_state->es), &(guest_state->fs), &(guest_state->gs), NULL};
143 for ( i = 0; segregs[i] != NULL; i++) {
144 struct vmcb_selector * seg = segregs[i];
146 seg->selector = 0x0000;
147 // seg->base = seg->selector << 4;
148 seg->base = 0x00000000;
149 seg->attrib.raw = 0xf3;
153 guest_state->gdtr.limit = 0x0000ffff;
154 guest_state->gdtr.base = 0x0000000000000000LL;
155 guest_state->idtr.limit = 0x0000ffff;
156 guest_state->idtr.base = 0x0000000000000000LL;
158 guest_state->ldtr.selector = 0x0000;
159 guest_state->ldtr.limit = 0x0000ffff;
160 guest_state->ldtr.base = 0x0000000000000000LL;
161 guest_state->tr.selector = 0x0000;
162 guest_state->tr.limit = 0x0000ffff;
163 guest_state->tr.base = 0x0000000000000000LL;
166 guest_state->dr6 = 0x00000000ffff0ff0LL;
167 guest_state->dr7 = 0x0000000000000400LL;
169 if (vm_info->io_map.num_ports > 0) {
170 struct vmm_io_hook * iter;
171 addr_t io_port_bitmap;
173 io_port_bitmap = (addr_t)V3_AllocPages(3);
174 memset((uchar_t*)io_port_bitmap, 0, PAGE_SIZE * 3);
176 ctrl_area->IOPM_BASE_PA = io_port_bitmap;
178 //PrintDebug("Setting up IO Map at 0x%x\n", io_port_bitmap);
180 FOREACH_IO_HOOK(vm_info->io_map, iter) {
181 ushort_t port = iter->port;
182 uchar_t * bitmap = (uchar_t *)io_port_bitmap;
184 bitmap += (port / 8);
185 // PrintDebug("Setting Bit for port 0x%x\n", port);
186 *bitmap |= 1 << (port % 8);
190 //PrintDebugMemDump((uchar_t*)io_port_bitmap, PAGE_SIZE *2);
192 ctrl_area->instrs.IOIO_PROT = 1;
197 PrintDebug("Exiting on interrupts\n");
198 ctrl_area->guest_ctrl.V_INTR_MASKING = 1;
199 ctrl_area->instrs.INTR = 1;
202 if (vm_info->shdw_pg_mode == SHADOW_PAGING) {
203 PrintDebug("Creating initial shadow page table\n");
204 vm_info->direct_map_pt = (addr_t)create_passthrough_pde32_pts(vm_info);
205 vm_info->shdw_pg_state.shadow_cr3 |= (vm_info->direct_map_pt & ~0xfff);
206 vm_info->shdw_pg_state.guest_cr0 = 0x0000000000000010LL;
207 PrintDebug("Created\n");
209 guest_state->cr3 = vm_info->shdw_pg_state.shadow_cr3;
211 //PrintDebugPageTables((pde32_t*)(vm_info->shdw_pg_state.shadow_cr3.e_reg.low));
213 ctrl_area->cr_reads.cr3 = 1;
214 ctrl_area->cr_writes.cr3 = 1;
217 ctrl_area->instrs.INVLPG = 1;
218 ctrl_area->instrs.INVLPGA = 1;
220 ctrl_area->exceptions.pf = 1;
222 /* JRL: This is a performance killer, and a simplistic solution */
223 /* We need to fix this */
224 ctrl_area->TLB_CONTROL = 1;
228 guest_state->g_pat = 0x7040600070406ULL;
230 guest_state->cr0 |= 0x80000000;
232 } else if (vm_info->shdw_pg_mode == NESTED_PAGING) {
233 // Flush the TLB on entries/exits
234 ctrl_area->TLB_CONTROL = 1;
236 // Enable Nested Paging
237 ctrl_area->NP_ENABLE = 1;
239 PrintDebug("NP_Enable at 0x%x\n", &(ctrl_area->NP_ENABLE));
241 // Set the Nested Page Table pointer
242 vm_info->direct_map_pt = ((addr_t)create_passthrough_pde32_pts(vm_info) & ~0xfff);
243 ctrl_area->N_CR3 = vm_info->direct_map_pt;
245 // ctrl_area->N_CR3 = Get_CR3();
246 // guest_state->cr3 |= (Get_CR3() & 0xfffff000);
248 guest_state->g_pat = 0x7040600070406ULL;
256 static int init_svm_guest(struct guest_info *info) {
258 PrintDebug("Allocating VMCB\n");
259 info->vmm_data = (void*)Allocate_VMCB();
262 //PrintDebug("Generating Guest nested page tables\n");
263 // info->page_tables = NULL;
264 //info->page_tables = generate_guest_page_tables_64(&(info->mem_layout), &(info->mem_list));
265 //info->page_tables = generate_guest_page_tables(&(info->mem_layout), &(info->mem_list));
266 // PrintDebugPageTables(info->page_tables);
269 PrintDebug("Initializing VMCB (addr=%x)\n", info->vmm_data);
270 Init_VMCB_BIOS((vmcb_t*)(info->vmm_data), info);
273 info->run_state = VM_STOPPED;
277 info->vm_regs.rdi = 0;
278 info->vm_regs.rsi = 0;
279 info->vm_regs.rbp = 0;
280 info->vm_regs.rsp = 0;
281 info->vm_regs.rbx = 0;
282 info->vm_regs.rdx = 0;
283 info->vm_regs.rcx = 0;
284 info->vm_regs.rax = 0;
291 // can we start a kernel thread here...
292 static int start_svm_guest(struct guest_info *info) {
293 vmcb_saved_state_t * guest_state = GET_VMCB_SAVE_STATE_AREA((vmcb_t*)(info->vmm_data));
294 vmcb_ctrl_t * guest_ctrl = GET_VMCB_CTRL_AREA((vmcb_t*)(info->vmm_data));
295 uint_t num_exits = 0;
299 PrintDebug("Launching SVM VM (vmcb=%x)\n", info->vmm_data);
300 //PrintDebugVMCB((vmcb_t*)(info->vmm_data));
302 info->run_state = VM_RUNNING;
311 // PrintDebug("SVM Entry to rip=%x...\n", info->rip);
313 rdtscll(info->time_state.cached_host_tsc);
314 guest_ctrl->TSC_OFFSET = info->time_state.guest_tsc - info->time_state.cached_host_tsc;
316 safe_svm_launch((vmcb_t*)(info->vmm_data), &(info->vm_regs));
319 //PrintDebug("SVM Returned\n");
322 v3_update_time(info, tmp_tsc - info->time_state.cached_host_tsc);
327 if ((num_exits % 25) == 0) {
328 PrintDebug("SVM Exit number %d\n", num_exits);
332 if (v3_handle_svm_exit(info) != 0) {
335 addr_t linear_addr = 0;
337 info->run_state = VM_ERROR;
339 PrintDebug("SVM ERROR!!\n");
341 PrintDebug("RIP: %x\n", guest_state->rip);
344 linear_addr = get_addr_linear(info, guest_state->rip, &(info->segments.cs));
347 PrintDebug("RIP Linear: %x\n", linear_addr);
348 v3_print_segments(info);
349 v3_print_ctrl_regs(info);
352 if (info->mem_mode == PHYSICAL_MEM) {
353 guest_pa_to_host_pa(info, linear_addr, &host_addr);
354 } else if (info->mem_mode == VIRTUAL_MEM) {
355 guest_va_to_host_pa(info, linear_addr, &host_addr);
359 PrintDebug("Host Address of rip = 0x%x\n", host_addr);
361 PrintDebug("Instr (15 bytes) at %x:\n", host_addr);
362 PrintTraceMemDump((uchar_t *)host_addr, 15);
374 /* Checks machine SVM capability */
375 /* Implemented from: AMD Arch Manual 3, sect 15.4 */
376 int v3_is_svm_capable() {
380 uint_t vm_cr_low = 0, vm_cr_high = 0;
381 uint_t eax = 0, ebx = 0, ecx = 0, edx = 0;
383 v3_cpuid(CPUID_FEATURE_IDS, &eax, &ebx, &ecx, &edx);
385 PrintDebug("CPUID_FEATURE_IDS_ecx=0x%x\n", ecx);
387 if ((ecx & CPUID_FEATURE_IDS_ecx_svm_avail) == 0) {
388 PrintDebug("SVM Not Available\n");
391 v3_get_msr(SVM_VM_CR_MSR, &vm_cr_high, &vm_cr_low);
393 PrintDebug("SVM_VM_CR_MSR = 0x%x 0x%x\n", vm_cr_high, vm_cr_low);
395 if ((vm_cr_low & SVM_VM_CR_MSR_svmdis) == 1) {
396 PrintDebug("SVM is available but is disabled.\n");
398 v3_cpuid(CPUID_SVM_REV_AND_FEATURE_IDS, &eax, &ebx, &ecx, &edx);
400 PrintDebug("CPUID_FEATURE_IDS_edx=0x%x\n", edx);
402 if ((edx & CPUID_SVM_REV_AND_FEATURE_IDS_edx_svml) == 0) {
403 PrintDebug("SVM BIOS Disabled, not unlockable\n");
405 PrintDebug("SVM is locked with a key\n");
410 PrintDebug("SVM is available and enabled.\n");
412 v3_cpuid(CPUID_SVM_REV_AND_FEATURE_IDS, &eax, &ebx, &ecx, &edx);
414 PrintDebug("CPUID_FEATURE_IDS_edx=0x%x\n", edx);
416 if ((edx & CPUID_SVM_REV_AND_FEATURE_IDS_edx_np) == 0) {
417 PrintDebug("SVM Nested Paging not supported\n");
419 PrintDebug("SVM Nested Paging supported\n");
428 uint_t eax = 0, ebx = 0, ecx = 0, edx = 0;
429 uint_t vm_cr_low = 0, vm_cr_high = 0;
431 v3_cpuid(CPUID_FEATURE_IDS, &eax, &ebx, &ecx, &edx);
433 if ((ecx & CPUID_FEATURE_IDS_ecx_svm_avail) == 0) {
434 PrintDebug("SVM Not Available\n");
438 v3_get_msr(SVM_VM_CR_MSR, &vm_cr_high, &vm_cr_low);
440 PrintDebug("SVM_VM_CR_MSR = 0x%x 0x%x\n", vm_cr_high, vm_cr_low);
443 // this part is clearly wrong, since the np bit is in
445 if ((edx & CPUID_SVM_REV_AND_FEATURE_IDS_edx_np) == 1) {
446 PrintDebug("Nested Paging not supported\n");
448 PrintDebug("Nested Paging supported\n");
451 if ((vm_cr_low & SVM_VM_CR_MSR_svmdis) == 0) {
452 PrintDebug("SVM is disabled.\n");
456 v3_cpuid(CPUID_SVM_REV_AND_FEATURE_IDS, &eax, &ebx, &ecx, &edx);
458 if ((edx & CPUID_SVM_REV_AND_FEATURE_IDS_edx_svml) == 0) {
459 PrintDebug("SVM BIOS Disabled, not unlockable\n");
461 PrintDebug("SVM is locked with a key\n");
470 static int has_svm_nested_paging() {
471 uint_t eax = 0, ebx = 0, ecx = 0, edx = 0;
473 v3_cpuid(CPUID_SVM_REV_AND_FEATURE_IDS, &eax, &ebx, &ecx, &edx);
475 //PrintDebug("CPUID_FEATURE_IDS_edx=0x%x\n", edx);
477 if ((edx & CPUID_SVM_REV_AND_FEATURE_IDS_edx_np) == 0) {
478 PrintDebug("SVM Nested Paging not supported\n");
481 PrintDebug("SVM Nested Paging supported\n");
489 void v3_init_SVM(struct v3_ctrl_ops * vmm_ops) {
494 // Enable SVM on the CPU
495 v3_get_msr(EFER_MSR, &(msr.e_reg.high), &(msr.e_reg.low));
496 msr.e_reg.low |= EFER_MSR_svm_enable;
497 v3_set_msr(EFER_MSR, 0, msr.e_reg.low);
499 PrintDebug("SVM Enabled\n");
502 // Setup the host state save area
503 host_state = V3_AllocPages(4);
507 // msr.e_reg.high = 0;
508 //msr.e_reg.low = (uint_t)host_state;
509 msr.r_reg = (addr_t)host_state;
511 PrintDebug("Host State being saved at %x\n", (addr_t)host_state);
512 v3_set_msr(SVM_VM_HSAVE_PA_MSR, msr.e_reg.high, msr.e_reg.low);
516 // Setup the SVM specific vmm operations
517 vmm_ops->init_guest = &init_svm_guest;
518 vmm_ops->start_guest = &start_svm_guest;
519 vmm_ops->has_nested_paging = &has_svm_nested_paging;
575 /*static void Init_VMCB(vmcb_t * vmcb, struct guest_info vm_info) {
576 vmcb_ctrl_t * ctrl_area = GET_VMCB_CTRL_AREA(vmcb);
577 vmcb_saved_state_t * guest_state = GET_VMCB_SAVE_STATE_AREA(vmcb);
581 guest_state->rsp = vm_info.vm_regs.rsp;
582 guest_state->rip = vm_info.rip;
585 //ctrl_area->instrs.instrs.CR0 = 1;
586 ctrl_area->cr_reads.cr0 = 1;
587 ctrl_area->cr_writes.cr0 = 1;
589 guest_state->efer |= EFER_MSR_svm_enable;
590 guest_state->rflags = 0x00000002; // The reserved bit is always 1
591 ctrl_area->svm_instrs.VMRUN = 1;
592 // guest_state->cr0 = 0x00000001; // PE
593 ctrl_area->guest_ASID = 1;
596 ctrl_area->exceptions.de = 1;
597 ctrl_area->exceptions.df = 1;
598 ctrl_area->exceptions.pf = 1;
599 ctrl_area->exceptions.ts = 1;
600 ctrl_area->exceptions.ss = 1;
601 ctrl_area->exceptions.ac = 1;
602 ctrl_area->exceptions.mc = 1;
603 ctrl_area->exceptions.gp = 1;
604 ctrl_area->exceptions.ud = 1;
605 ctrl_area->exceptions.np = 1;
606 ctrl_area->exceptions.of = 1;
607 ctrl_area->exceptions.nmi = 1;
609 guest_state->cs.selector = 0x0000;
610 guest_state->cs.limit=~0u;
611 guest_state->cs.base = guest_state->cs.selector<<4;
612 guest_state->cs.attrib.raw = 0xf3;
615 struct vmcb_selector *segregs [] = {&(guest_state->ss), &(guest_state->ds), &(guest_state->es), &(guest_state->fs), &(guest_state->gs), NULL};
616 for ( i = 0; segregs[i] != NULL; i++) {
617 struct vmcb_selector * seg = segregs[i];
619 seg->selector = 0x0000;
620 seg->base = seg->selector << 4;
621 seg->attrib.raw = 0xf3;
625 if (vm_info.io_map.num_ports > 0) {
626 struct vmm_io_hook * iter;
627 addr_t io_port_bitmap;
629 io_port_bitmap = (addr_t)V3_AllocPages(3);
630 memset((uchar_t*)io_port_bitmap, 0, PAGE_SIZE * 3);
632 ctrl_area->IOPM_BASE_PA = io_port_bitmap;
634 //PrintDebug("Setting up IO Map at 0x%x\n", io_port_bitmap);
636 FOREACH_IO_HOOK(vm_info.io_map, iter) {
637 ushort_t port = iter->port;
638 uchar_t * bitmap = (uchar_t *)io_port_bitmap;
640 bitmap += (port / 8);
641 PrintDebug("Setting Bit in block %x\n", bitmap);
642 *bitmap |= 1 << (port % 8);
646 //PrintDebugMemDump((uchar_t*)io_port_bitmap, PAGE_SIZE *2);
648 ctrl_area->instrs.IOIO_PROT = 1;
651 ctrl_area->instrs.INTR = 1;
655 if (vm_info.page_mode == SHADOW_PAGING) {
656 PrintDebug("Creating initial shadow page table\n");
657 vm_info.shdw_pg_state.shadow_cr3 |= ((addr_t)create_passthrough_pde32_pts(&vm_info) & ~0xfff);
658 PrintDebug("Created\n");
660 guest_state->cr3 = vm_info.shdw_pg_state.shadow_cr3;
662 ctrl_area->cr_reads.cr3 = 1;
663 ctrl_area->cr_writes.cr3 = 1;
666 ctrl_area->instrs.INVLPG = 1;
667 ctrl_area->instrs.INVLPGA = 1;
669 guest_state->g_pat = 0x7040600070406ULL;
671 guest_state->cr0 |= 0x80000000;
672 } else if (vm_info.page_mode == NESTED_PAGING) {
673 // Flush the TLB on entries/exits
674 //ctrl_area->TLB_CONTROL = 1;
676 // Enable Nested Paging
677 //ctrl_area->NP_ENABLE = 1;
679 //PrintDebug("NP_Enable at 0x%x\n", &(ctrl_area->NP_ENABLE));
681 // Set the Nested Page Table pointer
682 // ctrl_area->N_CR3 = ((addr_t)vm_info.page_tables);
683 // ctrl_area->N_CR3 = (addr_t)(vm_info.page_tables);
685 // ctrl_area->N_CR3 = Get_CR3();
686 // guest_state->cr3 |= (Get_CR3() & 0xfffff000);
688 // guest_state->g_pat = 0x7040600070406ULL;
703 void Init_VMCB_pe(vmcb_t *vmcb, struct guest_info vm_info) {
704 vmcb_ctrl_t * ctrl_area = GET_VMCB_CTRL_AREA(vmcb);
705 vmcb_saved_state_t * guest_state = GET_VMCB_SAVE_STATE_AREA(vmcb);
709 guest_state->rsp = vm_info.vm_regs.rsp;
710 guest_state->rip = vm_info.rip;
713 /* I pretty much just gutted this from TVMM */
714 /* Note: That means its probably wrong */
716 // set the segment registers to mirror ours
717 guest_state->cs.selector = 1<<3;
718 guest_state->cs.attrib.fields.type = 0xa; // Code segment+read
719 guest_state->cs.attrib.fields.S = 1;
720 guest_state->cs.attrib.fields.P = 1;
721 guest_state->cs.attrib.fields.db = 1;
722 guest_state->cs.attrib.fields.G = 1;
723 guest_state->cs.limit = 0xfffff;
724 guest_state->cs.base = 0;
726 struct vmcb_selector *segregs [] = {&(guest_state->ss), &(guest_state->ds), &(guest_state->es), &(guest_state->fs), &(guest_state->gs), NULL};
727 for ( i = 0; segregs[i] != NULL; i++) {
728 struct vmcb_selector * seg = segregs[i];
730 seg->selector = 2<<3;
731 seg->attrib.fields.type = 0x2; // Data Segment+read/write
732 seg->attrib.fields.S = 1;
733 seg->attrib.fields.P = 1;
734 seg->attrib.fields.db = 1;
735 seg->attrib.fields.G = 1;
736 seg->limit = 0xfffff;
742 /* JRL THIS HAS TO GO */
744 // guest_state->tr.selector = GetTR_Selector();
745 guest_state->tr.attrib.fields.type = 0x9;
746 guest_state->tr.attrib.fields.P = 1;
747 // guest_state->tr.limit = GetTR_Limit();
748 //guest_state->tr.base = GetTR_Base();// - 0x2000;
756 guest_state->efer |= EFER_MSR_svm_enable;
757 guest_state->rflags = 0x00000002; // The reserved bit is always 1
758 ctrl_area->svm_instrs.VMRUN = 1;
759 guest_state->cr0 = 0x00000001; // PE
760 ctrl_area->guest_ASID = 1;
763 // guest_state->cpl = 0;
769 ctrl_area->cr_writes.cr4 = 1;
771 ctrl_area->exceptions.de = 1;
772 ctrl_area->exceptions.df = 1;
773 ctrl_area->exceptions.pf = 1;
774 ctrl_area->exceptions.ts = 1;
775 ctrl_area->exceptions.ss = 1;
776 ctrl_area->exceptions.ac = 1;
777 ctrl_area->exceptions.mc = 1;
778 ctrl_area->exceptions.gp = 1;
779 ctrl_area->exceptions.ud = 1;
780 ctrl_area->exceptions.np = 1;
781 ctrl_area->exceptions.of = 1;
782 ctrl_area->exceptions.nmi = 1;
786 ctrl_area->instrs.IOIO_PROT = 1;
787 ctrl_area->IOPM_BASE_PA = (uint_t)V3_AllocPages(3);
791 tmp_reg.r_reg = ctrl_area->IOPM_BASE_PA;
792 memset((void*)(tmp_reg.e_reg.low), 0xffffffff, PAGE_SIZE * 2);
795 ctrl_area->instrs.INTR = 1;
802 memset(gdt_buf, 0, 6);
803 memset(idt_buf, 0, 6);
806 uint_t gdt_base, idt_base;
807 ushort_t gdt_limit, idt_limit;
810 gdt_base = *(ulong_t*)((uchar_t*)gdt_buf + 2) & 0xffffffff;
811 gdt_limit = *(ushort_t*)(gdt_buf) & 0xffff;
812 PrintDebug("GDT: base: %x, limit: %x\n", gdt_base, gdt_limit);
815 idt_base = *(ulong_t*)(idt_buf + 2) & 0xffffffff;
816 idt_limit = *(ushort_t*)(idt_buf) & 0xffff;
817 PrintDebug("IDT: base: %x, limit: %x\n",idt_base, idt_limit);
820 // gdt_base -= 0x2000;
821 //idt_base -= 0x2000;
823 guest_state->gdtr.base = gdt_base;
824 guest_state->gdtr.limit = gdt_limit;
825 guest_state->idtr.base = idt_base;
826 guest_state->idtr.limit = idt_limit;
832 // also determine if CPU supports nested paging
834 if (vm_info.page_tables) {
836 // Flush the TLB on entries/exits
837 ctrl_area->TLB_CONTROL = 1;
839 // Enable Nested Paging
840 ctrl_area->NP_ENABLE = 1;
842 PrintDebug("NP_Enable at 0x%x\n", &(ctrl_area->NP_ENABLE));
844 // Set the Nested Page Table pointer
845 ctrl_area->N_CR3 |= ((addr_t)vm_info.page_tables & 0xfffff000);
848 // ctrl_area->N_CR3 = Get_CR3();
849 // guest_state->cr3 |= (Get_CR3() & 0xfffff000);
851 guest_state->g_pat = 0x7040600070406ULL;
853 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));
854 PrintDebug("Set Guest CR3: lo: 0x%x hi: 0x%x\n", (uint_t)*(&(guest_state->cr3)), (uint_t)*((unsigned char *)&(guest_state->cr3) + 4));
856 // guest_state->cr0 |= 0x80000000;