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>
41 extern uint_t Get_CR3();
45 extern void v3_stgi();
46 extern void v3_clgi();
47 extern int v3_svm_launch(vmcb_t * vmcb, struct v3_gprs * vm_regs);
52 static vmcb_t * Allocate_VMCB() {
53 vmcb_t * vmcb_page = (vmcb_t *)V3_AllocPages(1);
55 memset(vmcb_page, 0, 4096);
64 static void Init_VMCB_BIOS(vmcb_t * vmcb, struct guest_info *vm_info) {
65 vmcb_ctrl_t * ctrl_area = GET_VMCB_CTRL_AREA(vmcb);
66 vmcb_saved_state_t * guest_state = GET_VMCB_SAVE_STATE_AREA(vmcb);
70 guest_state->rsp = vm_info->vm_regs.rsp;
71 // guest_state->rip = vm_info->rip;
72 guest_state->rip = 0xfff0;
76 //ctrl_area->instrs.instrs.CR0 = 1;
77 ctrl_area->cr_reads.cr0 = 1;
78 ctrl_area->cr_writes.cr0 = 1;
80 guest_state->efer |= EFER_MSR_svm_enable;
81 guest_state->rflags = 0x00000002; // The reserved bit is always 1
82 ctrl_area->svm_instrs.VMRUN = 1;
83 ctrl_area->svm_instrs.VMMCALL = 1;
84 ctrl_area->svm_instrs.VMLOAD = 1;
85 ctrl_area->svm_instrs.VMSAVE = 1;
86 ctrl_area->svm_instrs.STGI = 1;
87 ctrl_area->svm_instrs.CLGI = 1;
88 ctrl_area->svm_instrs.SKINIT = 1;
89 ctrl_area->svm_instrs.RDTSCP = 1;
90 ctrl_area->svm_instrs.ICEBP = 1;
91 ctrl_area->svm_instrs.WBINVD = 1;
92 ctrl_area->svm_instrs.MONITOR = 1;
93 ctrl_area->svm_instrs.MWAIT_always = 1;
94 ctrl_area->svm_instrs.MWAIT_if_armed = 1;
97 ctrl_area->instrs.HLT = 1;
98 // guest_state->cr0 = 0x00000001; // PE
99 ctrl_area->guest_ASID = 1;
103 ctrl_area->exceptions.de = 1;
104 ctrl_area->exceptions.df = 1;
106 ctrl_area->exceptions.ts = 1;
107 ctrl_area->exceptions.ss = 1;
108 ctrl_area->exceptions.ac = 1;
109 ctrl_area->exceptions.mc = 1;
110 ctrl_area->exceptions.gp = 1;
111 ctrl_area->exceptions.ud = 1;
112 ctrl_area->exceptions.np = 1;
113 ctrl_area->exceptions.of = 1;
115 ctrl_area->exceptions.nmi = 1;
117 // Debug of boot on physical machines - 7/14/08
118 ctrl_area->instrs.NMI=1;
119 ctrl_area->instrs.SMI=1;
120 ctrl_area->instrs.INIT=1;
121 ctrl_area->instrs.PAUSE=1;
122 ctrl_area->instrs.shutdown_evts=1;
126 vm_info->vm_regs.rdx = 0x00000f00;
128 guest_state->cr0 = 0x60000010;
130 guest_state->cs.selector = 0xf000;
131 guest_state->cs.limit=0xffff;
132 guest_state->cs.base = 0x0000000f0000LL;
133 guest_state->cs.attrib.raw = 0xf3;
136 struct vmcb_selector *segregs [] = {&(guest_state->ss), &(guest_state->ds), &(guest_state->es), &(guest_state->fs), &(guest_state->gs), NULL};
137 for ( i = 0; segregs[i] != NULL; i++) {
138 struct vmcb_selector * seg = segregs[i];
140 seg->selector = 0x0000;
141 // seg->base = seg->selector << 4;
142 seg->base = 0x00000000;
143 seg->attrib.raw = 0xf3;
147 guest_state->gdtr.limit = 0x0000ffff;
148 guest_state->gdtr.base = 0x0000000000000000LL;
149 guest_state->idtr.limit = 0x0000ffff;
150 guest_state->idtr.base = 0x0000000000000000LL;
152 guest_state->ldtr.selector = 0x0000;
153 guest_state->ldtr.limit = 0x0000ffff;
154 guest_state->ldtr.base = 0x0000000000000000LL;
155 guest_state->tr.selector = 0x0000;
156 guest_state->tr.limit = 0x0000ffff;
157 guest_state->tr.base = 0x0000000000000000LL;
160 guest_state->dr6 = 0x00000000ffff0ff0LL;
161 guest_state->dr7 = 0x0000000000000400LL;
163 if (vm_info->io_map.num_ports > 0) {
164 struct vmm_io_hook * iter;
165 addr_t io_port_bitmap;
167 io_port_bitmap = (addr_t)V3_AllocPages(3);
168 memset((uchar_t*)io_port_bitmap, 0, PAGE_SIZE * 3);
170 ctrl_area->IOPM_BASE_PA = io_port_bitmap;
172 //PrintDebug("Setting up IO Map at 0x%x\n", io_port_bitmap);
174 FOREACH_IO_HOOK(vm_info->io_map, iter) {
175 ushort_t port = iter->port;
176 uchar_t * bitmap = (uchar_t *)io_port_bitmap;
178 bitmap += (port / 8);
179 // PrintDebug("Setting Bit for port 0x%x\n", port);
180 *bitmap |= 1 << (port % 8);
184 //PrintDebugMemDump((uchar_t*)io_port_bitmap, PAGE_SIZE *2);
186 ctrl_area->instrs.IOIO_PROT = 1;
191 PrintDebug("Exiting on interrupts\n");
192 ctrl_area->guest_ctrl.V_INTR_MASKING = 1;
193 ctrl_area->instrs.INTR = 1;
196 if (vm_info->shdw_pg_mode == SHADOW_PAGING) {
197 PrintDebug("Creating initial shadow page table\n");
198 vm_info->direct_map_pt = (addr_t)create_passthrough_pde32_pts(vm_info);
199 vm_info->shdw_pg_state.shadow_cr3 |= (vm_info->direct_map_pt & ~0xfff);
200 vm_info->shdw_pg_state.guest_cr0 = 0x0000000000000010LL;
201 PrintDebug("Created\n");
203 guest_state->cr3 = vm_info->shdw_pg_state.shadow_cr3;
205 //PrintDebugPageTables((pde32_t*)(vm_info->shdw_pg_state.shadow_cr3.e_reg.low));
207 ctrl_area->cr_reads.cr3 = 1;
208 ctrl_area->cr_writes.cr3 = 1;
211 ctrl_area->instrs.INVLPG = 1;
212 ctrl_area->instrs.INVLPGA = 1;
214 ctrl_area->exceptions.pf = 1;
216 /* JRL: This is a performance killer, and a simplistic solution */
217 /* We need to fix this */
218 ctrl_area->TLB_CONTROL = 1;
222 guest_state->g_pat = 0x7040600070406ULL;
224 guest_state->cr0 |= 0x80000000;
226 } else if (vm_info->shdw_pg_mode == NESTED_PAGING) {
227 // Flush the TLB on entries/exits
228 ctrl_area->TLB_CONTROL = 1;
230 // Enable Nested Paging
231 ctrl_area->NP_ENABLE = 1;
233 PrintDebug("NP_Enable at 0x%x\n", &(ctrl_area->NP_ENABLE));
235 // Set the Nested Page Table pointer
236 vm_info->direct_map_pt = ((addr_t)create_passthrough_pde32_pts(vm_info) & ~0xfff);
237 ctrl_area->N_CR3 = vm_info->direct_map_pt;
239 // ctrl_area->N_CR3 = Get_CR3();
240 // guest_state->cr3 |= (Get_CR3() & 0xfffff000);
242 guest_state->g_pat = 0x7040600070406ULL;
250 static int init_svm_guest(struct guest_info *info) {
252 PrintDebug("Allocating VMCB\n");
253 info->vmm_data = (void*)Allocate_VMCB();
256 //PrintDebug("Generating Guest nested page tables\n");
257 // info->page_tables = NULL;
258 //info->page_tables = generate_guest_page_tables_64(&(info->mem_layout), &(info->mem_list));
259 //info->page_tables = generate_guest_page_tables(&(info->mem_layout), &(info->mem_list));
260 // PrintDebugPageTables(info->page_tables);
263 PrintDebug("Initializing VMCB (addr=%x)\n", info->vmm_data);
264 Init_VMCB_BIOS((vmcb_t*)(info->vmm_data), info);
267 info->run_state = VM_STOPPED;
271 info->vm_regs.rdi = 0;
272 info->vm_regs.rsi = 0;
273 info->vm_regs.rbp = 0;
274 info->vm_regs.rsp = 0;
275 info->vm_regs.rbx = 0;
276 info->vm_regs.rdx = 0;
277 info->vm_regs.rcx = 0;
278 info->vm_regs.rax = 0;
285 // can we start a kernel thread here...
286 static int start_svm_guest(struct guest_info *info) {
287 vmcb_saved_state_t * guest_state = GET_VMCB_SAVE_STATE_AREA((vmcb_t*)(info->vmm_data));
288 vmcb_ctrl_t * guest_ctrl = GET_VMCB_CTRL_AREA((vmcb_t*)(info->vmm_data));
289 uint_t num_exits = 0;
293 PrintDebug("Launching SVM VM (vmcb=%x)\n", info->vmm_data);
294 //PrintDebugVMCB((vmcb_t*)(info->vmm_data));
296 info->run_state = VM_RUNNING;
305 // PrintDebug("SVM Entry to rip=%x...\n", info->rip);
307 rdtscll(info->time_state.cached_host_tsc);
308 guest_ctrl->TSC_OFFSET = info->time_state.guest_tsc - info->time_state.cached_host_tsc;
310 v3_svm_launch((vmcb_t*)(info->vmm_data), &(info->vm_regs));
313 //PrintDebug("SVM Returned\n");
316 v3_update_time(info, tmp_tsc - info->time_state.cached_host_tsc);
321 if ((num_exits % 25) == 0) {
322 PrintDebug("SVM Exit number %d\n", num_exits);
326 if (v3_handle_svm_exit(info) != 0) {
329 addr_t linear_addr = 0;
331 info->run_state = VM_ERROR;
333 PrintDebug("SVM ERROR!!\n");
335 PrintDebug("RIP: %x\n", guest_state->rip);
338 linear_addr = get_addr_linear(info, guest_state->rip, &(info->segments.cs));
341 PrintDebug("RIP Linear: %x\n", linear_addr);
342 v3_print_segments(info);
343 v3_print_ctrl_regs(info);
346 if (info->mem_mode == PHYSICAL_MEM) {
347 guest_pa_to_host_pa(info, linear_addr, &host_addr);
348 } else if (info->mem_mode == VIRTUAL_MEM) {
349 guest_va_to_host_pa(info, linear_addr, &host_addr);
353 PrintDebug("Host Address of rip = 0x%x\n", host_addr);
355 PrintDebug("Instr (15 bytes) at %x:\n", host_addr);
356 PrintTraceMemDump((uchar_t *)host_addr, 15);
368 /* Checks machine SVM capability */
369 /* Implemented from: AMD Arch Manual 3, sect 15.4 */
370 int v3_is_svm_capable() {
374 uint_t vm_cr_low = 0, vm_cr_high = 0;
375 addr_t eax = 0, ebx = 0, ecx = 0, edx = 0;
377 v3_cpuid(CPUID_FEATURE_IDS, &eax, &ebx, &ecx, &edx);
379 PrintDebug("CPUID_FEATURE_IDS_ecx=0x%x\n", ecx);
381 if ((ecx & CPUID_FEATURE_IDS_ecx_svm_avail) == 0) {
382 PrintDebug("SVM Not Available\n");
385 v3_get_msr(SVM_VM_CR_MSR, &vm_cr_high, &vm_cr_low);
387 PrintDebug("SVM_VM_CR_MSR = 0x%x 0x%x\n", vm_cr_high, vm_cr_low);
389 if ((vm_cr_low & SVM_VM_CR_MSR_svmdis) == 1) {
390 PrintDebug("SVM is available but is disabled.\n");
392 v3_cpuid(CPUID_SVM_REV_AND_FEATURE_IDS, &eax, &ebx, &ecx, &edx);
394 PrintDebug("CPUID_FEATURE_IDS_edx=0x%x\n", edx);
396 if ((edx & CPUID_SVM_REV_AND_FEATURE_IDS_edx_svml) == 0) {
397 PrintDebug("SVM BIOS Disabled, not unlockable\n");
399 PrintDebug("SVM is locked with a key\n");
404 PrintDebug("SVM is available and enabled.\n");
406 v3_cpuid(CPUID_SVM_REV_AND_FEATURE_IDS, &eax, &ebx, &ecx, &edx);
408 PrintDebug("CPUID_FEATURE_IDS_edx=0x%x\n", edx);
410 if ((edx & CPUID_SVM_REV_AND_FEATURE_IDS_edx_np) == 0) {
411 PrintDebug("SVM Nested Paging not supported\n");
413 PrintDebug("SVM Nested Paging supported\n");
422 uint_t eax = 0, ebx = 0, ecx = 0, edx = 0;
423 addr_t vm_cr_low = 0, vm_cr_high = 0;
425 v3_cpuid(CPUID_FEATURE_IDS, &eax, &ebx, &ecx, &edx);
427 if ((ecx & CPUID_FEATURE_IDS_ecx_svm_avail) == 0) {
428 PrintDebug("SVM Not Available\n");
432 v3_get_msr(SVM_VM_CR_MSR, &vm_cr_high, &vm_cr_low);
434 PrintDebug("SVM_VM_CR_MSR = 0x%x 0x%x\n", vm_cr_high, vm_cr_low);
437 // this part is clearly wrong, since the np bit is in
439 if ((edx & CPUID_SVM_REV_AND_FEATURE_IDS_edx_np) == 1) {
440 PrintDebug("Nested Paging not supported\n");
442 PrintDebug("Nested Paging supported\n");
445 if ((vm_cr_low & SVM_VM_CR_MSR_svmdis) == 0) {
446 PrintDebug("SVM is disabled.\n");
450 v3_cpuid(CPUID_SVM_REV_AND_FEATURE_IDS, &eax, &ebx, &ecx, &edx);
452 if ((edx & CPUID_SVM_REV_AND_FEATURE_IDS_edx_svml) == 0) {
453 PrintDebug("SVM BIOS Disabled, not unlockable\n");
455 PrintDebug("SVM is locked with a key\n");
464 static int has_svm_nested_paging() {
465 addr_t eax = 0, ebx = 0, ecx = 0, edx = 0;
467 v3_cpuid(CPUID_SVM_REV_AND_FEATURE_IDS, &eax, &ebx, &ecx, &edx);
469 //PrintDebug("CPUID_FEATURE_IDS_edx=0x%x\n", edx);
471 if ((edx & CPUID_SVM_REV_AND_FEATURE_IDS_edx_np) == 0) {
472 PrintDebug("SVM Nested Paging not supported\n");
475 PrintDebug("SVM Nested Paging supported\n");
483 void v3_init_SVM(struct v3_ctrl_ops * vmm_ops) {
488 // Enable SVM on the CPU
489 v3_get_msr(EFER_MSR, &(msr.e_reg.high), &(msr.e_reg.low));
490 msr.e_reg.low |= EFER_MSR_svm_enable;
491 v3_set_msr(EFER_MSR, 0, msr.e_reg.low);
493 PrintDebug("SVM Enabled\n");
496 // Setup the host state save area
497 host_state = V3_AllocPages(4);
501 // msr.e_reg.high = 0;
502 //msr.e_reg.low = (uint_t)host_state;
503 msr.r_reg = (addr_t)host_state;
505 PrintDebug("Host State being saved at %x\n", (addr_t)host_state);
506 v3_set_msr(SVM_VM_HSAVE_PA_MSR, msr.e_reg.high, msr.e_reg.low);
510 // Setup the SVM specific vmm operations
511 vmm_ops->init_guest = &init_svm_guest;
512 vmm_ops->start_guest = &start_svm_guest;
513 vmm_ops->has_nested_paging = &has_svm_nested_paging;
569 /*static void Init_VMCB(vmcb_t * vmcb, struct guest_info vm_info) {
570 vmcb_ctrl_t * ctrl_area = GET_VMCB_CTRL_AREA(vmcb);
571 vmcb_saved_state_t * guest_state = GET_VMCB_SAVE_STATE_AREA(vmcb);
575 guest_state->rsp = vm_info.vm_regs.rsp;
576 guest_state->rip = vm_info.rip;
579 //ctrl_area->instrs.instrs.CR0 = 1;
580 ctrl_area->cr_reads.cr0 = 1;
581 ctrl_area->cr_writes.cr0 = 1;
583 guest_state->efer |= EFER_MSR_svm_enable;
584 guest_state->rflags = 0x00000002; // The reserved bit is always 1
585 ctrl_area->svm_instrs.VMRUN = 1;
586 // guest_state->cr0 = 0x00000001; // PE
587 ctrl_area->guest_ASID = 1;
590 ctrl_area->exceptions.de = 1;
591 ctrl_area->exceptions.df = 1;
592 ctrl_area->exceptions.pf = 1;
593 ctrl_area->exceptions.ts = 1;
594 ctrl_area->exceptions.ss = 1;
595 ctrl_area->exceptions.ac = 1;
596 ctrl_area->exceptions.mc = 1;
597 ctrl_area->exceptions.gp = 1;
598 ctrl_area->exceptions.ud = 1;
599 ctrl_area->exceptions.np = 1;
600 ctrl_area->exceptions.of = 1;
601 ctrl_area->exceptions.nmi = 1;
603 guest_state->cs.selector = 0x0000;
604 guest_state->cs.limit=~0u;
605 guest_state->cs.base = guest_state->cs.selector<<4;
606 guest_state->cs.attrib.raw = 0xf3;
609 struct vmcb_selector *segregs [] = {&(guest_state->ss), &(guest_state->ds), &(guest_state->es), &(guest_state->fs), &(guest_state->gs), NULL};
610 for ( i = 0; segregs[i] != NULL; i++) {
611 struct vmcb_selector * seg = segregs[i];
613 seg->selector = 0x0000;
614 seg->base = seg->selector << 4;
615 seg->attrib.raw = 0xf3;
619 if (vm_info.io_map.num_ports > 0) {
620 struct vmm_io_hook * iter;
621 addr_t io_port_bitmap;
623 io_port_bitmap = (addr_t)V3_AllocPages(3);
624 memset((uchar_t*)io_port_bitmap, 0, PAGE_SIZE * 3);
626 ctrl_area->IOPM_BASE_PA = io_port_bitmap;
628 //PrintDebug("Setting up IO Map at 0x%x\n", io_port_bitmap);
630 FOREACH_IO_HOOK(vm_info.io_map, iter) {
631 ushort_t port = iter->port;
632 uchar_t * bitmap = (uchar_t *)io_port_bitmap;
634 bitmap += (port / 8);
635 PrintDebug("Setting Bit in block %x\n", bitmap);
636 *bitmap |= 1 << (port % 8);
640 //PrintDebugMemDump((uchar_t*)io_port_bitmap, PAGE_SIZE *2);
642 ctrl_area->instrs.IOIO_PROT = 1;
645 ctrl_area->instrs.INTR = 1;
649 if (vm_info.page_mode == SHADOW_PAGING) {
650 PrintDebug("Creating initial shadow page table\n");
651 vm_info.shdw_pg_state.shadow_cr3 |= ((addr_t)create_passthrough_pde32_pts(&vm_info) & ~0xfff);
652 PrintDebug("Created\n");
654 guest_state->cr3 = vm_info.shdw_pg_state.shadow_cr3;
656 ctrl_area->cr_reads.cr3 = 1;
657 ctrl_area->cr_writes.cr3 = 1;
660 ctrl_area->instrs.INVLPG = 1;
661 ctrl_area->instrs.INVLPGA = 1;
663 guest_state->g_pat = 0x7040600070406ULL;
665 guest_state->cr0 |= 0x80000000;
666 } else if (vm_info.page_mode == NESTED_PAGING) {
667 // Flush the TLB on entries/exits
668 //ctrl_area->TLB_CONTROL = 1;
670 // Enable Nested Paging
671 //ctrl_area->NP_ENABLE = 1;
673 //PrintDebug("NP_Enable at 0x%x\n", &(ctrl_area->NP_ENABLE));
675 // Set the Nested Page Table pointer
676 // ctrl_area->N_CR3 = ((addr_t)vm_info.page_tables);
677 // ctrl_area->N_CR3 = (addr_t)(vm_info.page_tables);
679 // ctrl_area->N_CR3 = Get_CR3();
680 // guest_state->cr3 |= (Get_CR3() & 0xfffff000);
682 // guest_state->g_pat = 0x7040600070406ULL;
697 void Init_VMCB_pe(vmcb_t *vmcb, struct guest_info vm_info) {
698 vmcb_ctrl_t * ctrl_area = GET_VMCB_CTRL_AREA(vmcb);
699 vmcb_saved_state_t * guest_state = GET_VMCB_SAVE_STATE_AREA(vmcb);
703 guest_state->rsp = vm_info.vm_regs.rsp;
704 guest_state->rip = vm_info.rip;
707 /* I pretty much just gutted this from TVMM */
708 /* Note: That means its probably wrong */
710 // set the segment registers to mirror ours
711 guest_state->cs.selector = 1<<3;
712 guest_state->cs.attrib.fields.type = 0xa; // Code segment+read
713 guest_state->cs.attrib.fields.S = 1;
714 guest_state->cs.attrib.fields.P = 1;
715 guest_state->cs.attrib.fields.db = 1;
716 guest_state->cs.attrib.fields.G = 1;
717 guest_state->cs.limit = 0xfffff;
718 guest_state->cs.base = 0;
720 struct vmcb_selector *segregs [] = {&(guest_state->ss), &(guest_state->ds), &(guest_state->es), &(guest_state->fs), &(guest_state->gs), NULL};
721 for ( i = 0; segregs[i] != NULL; i++) {
722 struct vmcb_selector * seg = segregs[i];
724 seg->selector = 2<<3;
725 seg->attrib.fields.type = 0x2; // Data Segment+read/write
726 seg->attrib.fields.S = 1;
727 seg->attrib.fields.P = 1;
728 seg->attrib.fields.db = 1;
729 seg->attrib.fields.G = 1;
730 seg->limit = 0xfffff;
736 /* JRL THIS HAS TO GO */
738 // guest_state->tr.selector = GetTR_Selector();
739 guest_state->tr.attrib.fields.type = 0x9;
740 guest_state->tr.attrib.fields.P = 1;
741 // guest_state->tr.limit = GetTR_Limit();
742 //guest_state->tr.base = GetTR_Base();// - 0x2000;
750 guest_state->efer |= EFER_MSR_svm_enable;
751 guest_state->rflags = 0x00000002; // The reserved bit is always 1
752 ctrl_area->svm_instrs.VMRUN = 1;
753 guest_state->cr0 = 0x00000001; // PE
754 ctrl_area->guest_ASID = 1;
757 // guest_state->cpl = 0;
763 ctrl_area->cr_writes.cr4 = 1;
765 ctrl_area->exceptions.de = 1;
766 ctrl_area->exceptions.df = 1;
767 ctrl_area->exceptions.pf = 1;
768 ctrl_area->exceptions.ts = 1;
769 ctrl_area->exceptions.ss = 1;
770 ctrl_area->exceptions.ac = 1;
771 ctrl_area->exceptions.mc = 1;
772 ctrl_area->exceptions.gp = 1;
773 ctrl_area->exceptions.ud = 1;
774 ctrl_area->exceptions.np = 1;
775 ctrl_area->exceptions.of = 1;
776 ctrl_area->exceptions.nmi = 1;
780 ctrl_area->instrs.IOIO_PROT = 1;
781 ctrl_area->IOPM_BASE_PA = (uint_t)V3_AllocPages(3);
785 tmp_reg.r_reg = ctrl_area->IOPM_BASE_PA;
786 memset((void*)(tmp_reg.e_reg.low), 0xffffffff, PAGE_SIZE * 2);
789 ctrl_area->instrs.INTR = 1;
796 memset(gdt_buf, 0, 6);
797 memset(idt_buf, 0, 6);
800 uint_t gdt_base, idt_base;
801 ushort_t gdt_limit, idt_limit;
804 gdt_base = *(ulong_t*)((uchar_t*)gdt_buf + 2) & 0xffffffff;
805 gdt_limit = *(ushort_t*)(gdt_buf) & 0xffff;
806 PrintDebug("GDT: base: %x, limit: %x\n", gdt_base, gdt_limit);
809 idt_base = *(ulong_t*)(idt_buf + 2) & 0xffffffff;
810 idt_limit = *(ushort_t*)(idt_buf) & 0xffff;
811 PrintDebug("IDT: base: %x, limit: %x\n",idt_base, idt_limit);
814 // gdt_base -= 0x2000;
815 //idt_base -= 0x2000;
817 guest_state->gdtr.base = gdt_base;
818 guest_state->gdtr.limit = gdt_limit;
819 guest_state->idtr.base = idt_base;
820 guest_state->idtr.limit = idt_limit;
826 // also determine if CPU supports nested paging
828 if (vm_info.page_tables) {
830 // Flush the TLB on entries/exits
831 ctrl_area->TLB_CONTROL = 1;
833 // Enable Nested Paging
834 ctrl_area->NP_ENABLE = 1;
836 PrintDebug("NP_Enable at 0x%x\n", &(ctrl_area->NP_ENABLE));
838 // Set the Nested Page Table pointer
839 ctrl_area->N_CR3 |= ((addr_t)vm_info.page_tables & 0xfffff000);
842 // ctrl_area->N_CR3 = Get_CR3();
843 // guest_state->cr3 |= (Get_CR3() & 0xfffff000);
845 guest_state->g_pat = 0x7040600070406ULL;
847 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));
848 PrintDebug("Set Guest CR3: lo: 0x%x hi: 0x%x\n", (uint_t)*(&(guest_state->cr3)), (uint_t)*((unsigned char *)&(guest_state->cr3) + 4));
850 // guest_state->cr0 |= 0x80000000;