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_VAddr(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 /* DEBUG FOR RETURN CODE */
137 ctrl_area->exit_code = 1;
140 struct vmcb_selector *segregs [] = {&(guest_state->ss), &(guest_state->ds), &(guest_state->es), &(guest_state->fs), &(guest_state->gs), NULL};
141 for ( i = 0; segregs[i] != NULL; i++) {
142 struct vmcb_selector * seg = segregs[i];
144 seg->selector = 0x0000;
145 // seg->base = seg->selector << 4;
146 seg->base = 0x00000000;
147 seg->attrib.raw = 0xf3;
151 guest_state->gdtr.limit = 0x0000ffff;
152 guest_state->gdtr.base = 0x0000000000000000LL;
153 guest_state->idtr.limit = 0x0000ffff;
154 guest_state->idtr.base = 0x0000000000000000LL;
156 guest_state->ldtr.selector = 0x0000;
157 guest_state->ldtr.limit = 0x0000ffff;
158 guest_state->ldtr.base = 0x0000000000000000LL;
159 guest_state->tr.selector = 0x0000;
160 guest_state->tr.limit = 0x0000ffff;
161 guest_state->tr.base = 0x0000000000000000LL;
164 guest_state->dr6 = 0x00000000ffff0ff0LL;
165 guest_state->dr7 = 0x0000000000000400LL;
167 if (vm_info->io_map.num_ports > 0) {
168 struct vmm_io_hook * iter;
169 addr_t io_port_bitmap;
171 io_port_bitmap = (addr_t)V3_VAddr(V3_AllocPages(3));
172 memset((uchar_t*)io_port_bitmap, 0, PAGE_SIZE * 3);
174 ctrl_area->IOPM_BASE_PA = (addr_t)V3_PAddr((void *)io_port_bitmap);
176 //PrintDebug("Setting up IO Map at 0x%x\n", io_port_bitmap);
178 FOREACH_IO_HOOK(vm_info->io_map, iter) {
179 ushort_t port = iter->port;
180 uchar_t * bitmap = (uchar_t *)io_port_bitmap;
182 bitmap += (port / 8);
183 // PrintDebug("Setting Bit for port 0x%x\n", port);
184 *bitmap |= 1 << (port % 8);
188 //PrintDebugMemDump((uchar_t*)io_port_bitmap, PAGE_SIZE *2);
190 ctrl_area->instrs.IOIO_PROT = 1;
195 PrintDebug("Exiting on interrupts\n");
196 ctrl_area->guest_ctrl.V_INTR_MASKING = 1;
197 ctrl_area->instrs.INTR = 1;
200 if (vm_info->shdw_pg_mode == SHADOW_PAGING) {
201 PrintDebug("Creating initial shadow page table\n");
202 vm_info->direct_map_pt = (addr_t)create_passthrough_pde32_pts(vm_info);
203 vm_info->shdw_pg_state.shadow_cr3 |= (vm_info->direct_map_pt & ~0xfff);
204 vm_info->shdw_pg_state.guest_cr0 = 0x0000000000000010LL;
205 PrintDebug("Created\n");
207 guest_state->cr3 = vm_info->shdw_pg_state.shadow_cr3;
209 //PrintDebugPageTables((pde32_t*)(vm_info->shdw_pg_state.shadow_cr3.e_reg.low));
211 ctrl_area->cr_reads.cr3 = 1;
212 ctrl_area->cr_writes.cr3 = 1;
215 ctrl_area->instrs.INVLPG = 1;
216 ctrl_area->instrs.INVLPGA = 1;
218 ctrl_area->exceptions.pf = 1;
220 /* JRL: This is a performance killer, and a simplistic solution */
221 /* We need to fix this */
222 ctrl_area->TLB_CONTROL = 1;
226 guest_state->g_pat = 0x7040600070406ULL;
228 guest_state->cr0 |= 0x80000000;
230 } else if (vm_info->shdw_pg_mode == NESTED_PAGING) {
231 // Flush the TLB on entries/exits
232 ctrl_area->TLB_CONTROL = 1;
234 // Enable Nested Paging
235 ctrl_area->NP_ENABLE = 1;
237 PrintDebug("NP_Enable at 0x%p\n", (void *)&(ctrl_area->NP_ENABLE));
239 // Set the Nested Page Table pointer
240 vm_info->direct_map_pt = ((addr_t)create_passthrough_pde32_pts(vm_info) & ~0xfff);
241 ctrl_area->N_CR3 = vm_info->direct_map_pt;
243 // ctrl_area->N_CR3 = Get_CR3();
244 // guest_state->cr3 |= (Get_CR3() & 0xfffff000);
246 guest_state->g_pat = 0x7040600070406ULL;
254 static int init_svm_guest(struct guest_info *info) {
256 PrintDebug("Allocating VMCB\n");
257 info->vmm_data = (void*)Allocate_VMCB();
260 //PrintDebug("Generating Guest nested page tables\n");
261 // info->page_tables = NULL;
262 //info->page_tables = generate_guest_page_tables_64(&(info->mem_layout), &(info->mem_list));
263 //info->page_tables = generate_guest_page_tables(&(info->mem_layout), &(info->mem_list));
264 // PrintDebugPageTables(info->page_tables);
267 PrintDebug("Initializing VMCB (addr=%p)\n", (void *)info->vmm_data);
268 Init_VMCB_BIOS((vmcb_t*)(info->vmm_data), info);
271 info->run_state = VM_STOPPED;
275 info->vm_regs.rdi = 0;
276 info->vm_regs.rsi = 0;
277 info->vm_regs.rbp = 0;
278 info->vm_regs.rsp = 0;
279 info->vm_regs.rbx = 0;
280 info->vm_regs.rdx = 0;
281 info->vm_regs.rcx = 0;
282 info->vm_regs.rax = 0;
289 // can we start a kernel thread here...
290 static int start_svm_guest(struct guest_info *info) {
291 vmcb_saved_state_t * guest_state = GET_VMCB_SAVE_STATE_AREA((vmcb_t*)(info->vmm_data));
292 vmcb_ctrl_t * guest_ctrl = GET_VMCB_CTRL_AREA((vmcb_t*)(info->vmm_data));
293 uint_t num_exits = 0;
297 PrintDebug("Launching SVM VM (vmcb=%p)\n", (void *)info->vmm_data);
298 //PrintDebugVMCB((vmcb_t*)(info->vmm_data));
300 info->run_state = VM_RUNNING;
304 uint_t vm_cr_low = 0, vm_cr_high = 0;
311 PrintDebug("SVM Entry to rip=%p...\n", (void *)info->rip);
313 v3_get_msr(0xc0000101, &vm_cr_high, &vm_cr_low);
315 rdtscll(info->time_state.cached_host_tsc);
317 guest_ctrl->TSC_OFFSET = info->time_state.guest_tsc - info->time_state.cached_host_tsc;
319 v3_svm_launch((vmcb_t*)V3_PAddr(info->vmm_data), &(info->vm_regs));
322 v3_set_msr(0xc0000101, vm_cr_high, vm_cr_low);
323 PrintDebug("SVM Returned\n");
329 PrintDebug("RSP=%p\n", (void *)&x);
334 v3_update_time(info, tmp_tsc - info->time_state.cached_host_tsc);
337 PrintDebug("Turning on global interrupts\n");
341 PrintDebug("SVM Exit number %d\n", num_exits);
345 if (v3_handle_svm_exit(info) != 0) {
348 addr_t linear_addr = 0;
350 info->run_state = VM_ERROR;
352 PrintDebug("SVM ERROR!!\n");
354 PrintDebug("RIP: %p\n", (void *)guest_state->rip);
357 linear_addr = get_addr_linear(info, guest_state->rip, &(info->segments.cs));
360 PrintDebug("RIP Linear: %p\n", (void *)linear_addr);
361 v3_print_segments(info);
362 v3_print_ctrl_regs(info);
365 if (info->mem_mode == PHYSICAL_MEM) {
366 guest_pa_to_host_va(info, linear_addr, &host_addr);
367 } else if (info->mem_mode == VIRTUAL_MEM) {
368 guest_va_to_host_va(info, linear_addr, &host_addr);
372 PrintDebug("Host Address of rip = 0x%p\n", (void *)host_addr);
374 PrintDebug("Instr (15 bytes) at %p:\n", (void *)host_addr);
375 PrintTraceMemDump((uchar_t *)host_addr, 15);
387 /* Checks machine SVM capability */
388 /* Implemented from: AMD Arch Manual 3, sect 15.4 */
389 int v3_is_svm_capable() {
393 uint_t vm_cr_low = 0, vm_cr_high = 0;
394 addr_t eax = 0, ebx = 0, ecx = 0, edx = 0;
396 v3_cpuid(CPUID_FEATURE_IDS, &eax, &ebx, &ecx, &edx);
398 PrintDebug("CPUID_FEATURE_IDS_ecx=0x%p\n", (void *)ecx);
400 if ((ecx & CPUID_FEATURE_IDS_ecx_svm_avail) == 0) {
401 PrintDebug("SVM Not Available\n");
404 v3_get_msr(SVM_VM_CR_MSR, &vm_cr_high, &vm_cr_low);
406 PrintDebug("SVM_VM_CR_MSR = 0x%x 0x%x\n", vm_cr_high, vm_cr_low);
408 if ((vm_cr_low & SVM_VM_CR_MSR_svmdis) == 1) {
409 PrintDebug("SVM is available but is disabled.\n");
411 v3_cpuid(CPUID_SVM_REV_AND_FEATURE_IDS, &eax, &ebx, &ecx, &edx);
413 PrintDebug("CPUID_FEATURE_IDS_edx=0x%p\n", (void *)edx);
415 if ((edx & CPUID_SVM_REV_AND_FEATURE_IDS_edx_svml) == 0) {
416 PrintDebug("SVM BIOS Disabled, not unlockable\n");
418 PrintDebug("SVM is locked with a key\n");
423 PrintDebug("SVM is available and enabled.\n");
425 v3_cpuid(CPUID_SVM_REV_AND_FEATURE_IDS, &eax, &ebx, &ecx, &edx);
427 PrintDebug("CPUID_FEATURE_IDS_edx=0x%p\n", (void *)edx);
429 if ((edx & CPUID_SVM_REV_AND_FEATURE_IDS_edx_np) == 0) {
430 PrintDebug("SVM Nested Paging not supported\n");
432 PrintDebug("SVM Nested Paging supported\n");
441 uint_t eax = 0, ebx = 0, ecx = 0, edx = 0;
442 addr_t vm_cr_low = 0, vm_cr_high = 0;
444 v3_cpuid(CPUID_FEATURE_IDS, &eax, &ebx, &ecx, &edx);
446 if ((ecx & CPUID_FEATURE_IDS_ecx_svm_avail) == 0) {
447 PrintDebug("SVM Not Available\n");
451 v3_get_msr(SVM_VM_CR_MSR, &vm_cr_high, &vm_cr_low);
453 PrintDebug("SVM_VM_CR_MSR = 0x%x 0x%x\n", vm_cr_high, vm_cr_low);
456 // this part is clearly wrong, since the np bit is in
458 if ((edx & CPUID_SVM_REV_AND_FEATURE_IDS_edx_np) == 1) {
459 PrintDebug("Nested Paging not supported\n");
461 PrintDebug("Nested Paging supported\n");
464 if ((vm_cr_low & SVM_VM_CR_MSR_svmdis) == 0) {
465 PrintDebug("SVM is disabled.\n");
469 v3_cpuid(CPUID_SVM_REV_AND_FEATURE_IDS, &eax, &ebx, &ecx, &edx);
471 if ((edx & CPUID_SVM_REV_AND_FEATURE_IDS_edx_svml) == 0) {
472 PrintDebug("SVM BIOS Disabled, not unlockable\n");
474 PrintDebug("SVM is locked with a key\n");
483 static int has_svm_nested_paging() {
484 addr_t eax = 0, ebx = 0, ecx = 0, edx = 0;
486 v3_cpuid(CPUID_SVM_REV_AND_FEATURE_IDS, &eax, &ebx, &ecx, &edx);
488 //PrintDebug("CPUID_FEATURE_IDS_edx=0x%x\n", edx);
490 if ((edx & CPUID_SVM_REV_AND_FEATURE_IDS_edx_np) == 0) {
491 PrintDebug("SVM Nested Paging not supported\n");
494 PrintDebug("SVM Nested Paging supported\n");
502 void v3_init_SVM(struct v3_ctrl_ops * vmm_ops) {
507 // Enable SVM on the CPU
508 v3_get_msr(EFER_MSR, &(msr.e_reg.high), &(msr.e_reg.low));
509 msr.e_reg.low |= EFER_MSR_svm_enable;
510 v3_set_msr(EFER_MSR, 0, msr.e_reg.low);
512 PrintDebug("SVM Enabled\n");
515 // Setup the host state save area
516 host_state = V3_AllocPages(4);
520 // msr.e_reg.high = 0;
521 //msr.e_reg.low = (uint_t)host_state;
522 msr.r_reg = (addr_t)host_state;
524 PrintDebug("Host State being saved at %p\n", (void *)(addr_t)host_state);
525 v3_set_msr(SVM_VM_HSAVE_PA_MSR, msr.e_reg.high, msr.e_reg.low);
529 // Setup the SVM specific vmm operations
530 vmm_ops->init_guest = &init_svm_guest;
531 vmm_ops->start_guest = &start_svm_guest;
532 vmm_ops->has_nested_paging = &has_svm_nested_paging;
588 /*static void Init_VMCB(vmcb_t * vmcb, struct guest_info vm_info) {
589 vmcb_ctrl_t * ctrl_area = GET_VMCB_CTRL_AREA(vmcb);
590 vmcb_saved_state_t * guest_state = GET_VMCB_SAVE_STATE_AREA(vmcb);
594 guest_state->rsp = vm_info.vm_regs.rsp;
595 guest_state->rip = vm_info.rip;
598 //ctrl_area->instrs.instrs.CR0 = 1;
599 ctrl_area->cr_reads.cr0 = 1;
600 ctrl_area->cr_writes.cr0 = 1;
602 guest_state->efer |= EFER_MSR_svm_enable;
603 guest_state->rflags = 0x00000002; // The reserved bit is always 1
604 ctrl_area->svm_instrs.VMRUN = 1;
605 // guest_state->cr0 = 0x00000001; // PE
606 ctrl_area->guest_ASID = 1;
609 ctrl_area->exceptions.de = 1;
610 ctrl_area->exceptions.df = 1;
611 ctrl_area->exceptions.pf = 1;
612 ctrl_area->exceptions.ts = 1;
613 ctrl_area->exceptions.ss = 1;
614 ctrl_area->exceptions.ac = 1;
615 ctrl_area->exceptions.mc = 1;
616 ctrl_area->exceptions.gp = 1;
617 ctrl_area->exceptions.ud = 1;
618 ctrl_area->exceptions.np = 1;
619 ctrl_area->exceptions.of = 1;
620 ctrl_area->exceptions.nmi = 1;
622 guest_state->cs.selector = 0x0000;
623 guest_state->cs.limit=~0u;
624 guest_state->cs.base = guest_state->cs.selector<<4;
625 guest_state->cs.attrib.raw = 0xf3;
628 struct vmcb_selector *segregs [] = {&(guest_state->ss), &(guest_state->ds), &(guest_state->es), &(guest_state->fs), &(guest_state->gs), NULL};
629 for ( i = 0; segregs[i] != NULL; i++) {
630 struct vmcb_selector * seg = segregs[i];
632 seg->selector = 0x0000;
633 seg->base = seg->selector << 4;
634 seg->attrib.raw = 0xf3;
638 if (vm_info.io_map.num_ports > 0) {
639 struct vmm_io_hook * iter;
640 addr_t io_port_bitmap;
642 io_port_bitmap = (addr_t)V3_AllocPages(3);
643 memset((uchar_t*)io_port_bitmap, 0, PAGE_SIZE * 3);
645 ctrl_area->IOPM_BASE_PA = io_port_bitmap;
647 //PrintDebug("Setting up IO Map at 0x%x\n", io_port_bitmap);
649 FOREACH_IO_HOOK(vm_info.io_map, iter) {
650 ushort_t port = iter->port;
651 uchar_t * bitmap = (uchar_t *)io_port_bitmap;
653 bitmap += (port / 8);
654 PrintDebug("Setting Bit in block %x\n", bitmap);
655 *bitmap |= 1 << (port % 8);
659 //PrintDebugMemDump((uchar_t*)io_port_bitmap, PAGE_SIZE *2);
661 ctrl_area->instrs.IOIO_PROT = 1;
664 ctrl_area->instrs.INTR = 1;
668 if (vm_info.page_mode == SHADOW_PAGING) {
669 PrintDebug("Creating initial shadow page table\n");
670 vm_info.shdw_pg_state.shadow_cr3 |= ((addr_t)create_passthrough_pde32_pts(&vm_info) & ~0xfff);
671 PrintDebug("Created\n");
673 guest_state->cr3 = vm_info.shdw_pg_state.shadow_cr3;
675 ctrl_area->cr_reads.cr3 = 1;
676 ctrl_area->cr_writes.cr3 = 1;
679 ctrl_area->instrs.INVLPG = 1;
680 ctrl_area->instrs.INVLPGA = 1;
682 guest_state->g_pat = 0x7040600070406ULL;
684 guest_state->cr0 |= 0x80000000;
685 } else if (vm_info.page_mode == NESTED_PAGING) {
686 // Flush the TLB on entries/exits
687 //ctrl_area->TLB_CONTROL = 1;
689 // Enable Nested Paging
690 //ctrl_area->NP_ENABLE = 1;
692 //PrintDebug("NP_Enable at 0x%x\n", &(ctrl_area->NP_ENABLE));
694 // Set the Nested Page Table pointer
695 // ctrl_area->N_CR3 = ((addr_t)vm_info.page_tables);
696 // ctrl_area->N_CR3 = (addr_t)(vm_info.page_tables);
698 // ctrl_area->N_CR3 = Get_CR3();
699 // guest_state->cr3 |= (Get_CR3() & 0xfffff000);
701 // guest_state->g_pat = 0x7040600070406ULL;
716 void Init_VMCB_pe(vmcb_t *vmcb, struct guest_info vm_info) {
717 vmcb_ctrl_t * ctrl_area = GET_VMCB_CTRL_AREA(vmcb);
718 vmcb_saved_state_t * guest_state = GET_VMCB_SAVE_STATE_AREA(vmcb);
722 guest_state->rsp = vm_info.vm_regs.rsp;
723 guest_state->rip = vm_info.rip;
726 /* I pretty much just gutted this from TVMM */
727 /* Note: That means its probably wrong */
729 // set the segment registers to mirror ours
730 guest_state->cs.selector = 1<<3;
731 guest_state->cs.attrib.fields.type = 0xa; // Code segment+read
732 guest_state->cs.attrib.fields.S = 1;
733 guest_state->cs.attrib.fields.P = 1;
734 guest_state->cs.attrib.fields.db = 1;
735 guest_state->cs.attrib.fields.G = 1;
736 guest_state->cs.limit = 0xfffff;
737 guest_state->cs.base = 0;
739 struct vmcb_selector *segregs [] = {&(guest_state->ss), &(guest_state->ds), &(guest_state->es), &(guest_state->fs), &(guest_state->gs), NULL};
740 for ( i = 0; segregs[i] != NULL; i++) {
741 struct vmcb_selector * seg = segregs[i];
743 seg->selector = 2<<3;
744 seg->attrib.fields.type = 0x2; // Data Segment+read/write
745 seg->attrib.fields.S = 1;
746 seg->attrib.fields.P = 1;
747 seg->attrib.fields.db = 1;
748 seg->attrib.fields.G = 1;
749 seg->limit = 0xfffff;
755 /* JRL THIS HAS TO GO */
757 // guest_state->tr.selector = GetTR_Selector();
758 guest_state->tr.attrib.fields.type = 0x9;
759 guest_state->tr.attrib.fields.P = 1;
760 // guest_state->tr.limit = GetTR_Limit();
761 //guest_state->tr.base = GetTR_Base();// - 0x2000;
769 guest_state->efer |= EFER_MSR_svm_enable;
770 guest_state->rflags = 0x00000002; // The reserved bit is always 1
771 ctrl_area->svm_instrs.VMRUN = 1;
772 guest_state->cr0 = 0x00000001; // PE
773 ctrl_area->guest_ASID = 1;
776 // guest_state->cpl = 0;
782 ctrl_area->cr_writes.cr4 = 1;
784 ctrl_area->exceptions.de = 1;
785 ctrl_area->exceptions.df = 1;
786 ctrl_area->exceptions.pf = 1;
787 ctrl_area->exceptions.ts = 1;
788 ctrl_area->exceptions.ss = 1;
789 ctrl_area->exceptions.ac = 1;
790 ctrl_area->exceptions.mc = 1;
791 ctrl_area->exceptions.gp = 1;
792 ctrl_area->exceptions.ud = 1;
793 ctrl_area->exceptions.np = 1;
794 ctrl_area->exceptions.of = 1;
795 ctrl_area->exceptions.nmi = 1;
799 ctrl_area->instrs.IOIO_PROT = 1;
800 ctrl_area->IOPM_BASE_PA = (uint_t)V3_AllocPages(3);
804 tmp_reg.r_reg = ctrl_area->IOPM_BASE_PA;
805 memset((void*)(tmp_reg.e_reg.low), 0xffffffff, PAGE_SIZE * 2);
808 ctrl_area->instrs.INTR = 1;
815 memset(gdt_buf, 0, 6);
816 memset(idt_buf, 0, 6);
819 uint_t gdt_base, idt_base;
820 ushort_t gdt_limit, idt_limit;
823 gdt_base = *(ulong_t*)((uchar_t*)gdt_buf + 2) & 0xffffffff;
824 gdt_limit = *(ushort_t*)(gdt_buf) & 0xffff;
825 PrintDebug("GDT: base: %x, limit: %x\n", gdt_base, gdt_limit);
828 idt_base = *(ulong_t*)(idt_buf + 2) & 0xffffffff;
829 idt_limit = *(ushort_t*)(idt_buf) & 0xffff;
830 PrintDebug("IDT: base: %x, limit: %x\n",idt_base, idt_limit);
833 // gdt_base -= 0x2000;
834 //idt_base -= 0x2000;
836 guest_state->gdtr.base = gdt_base;
837 guest_state->gdtr.limit = gdt_limit;
838 guest_state->idtr.base = idt_base;
839 guest_state->idtr.limit = idt_limit;
845 // also determine if CPU supports nested paging
847 if (vm_info.page_tables) {
849 // Flush the TLB on entries/exits
850 ctrl_area->TLB_CONTROL = 1;
852 // Enable Nested Paging
853 ctrl_area->NP_ENABLE = 1;
855 PrintDebug("NP_Enable at 0x%x\n", &(ctrl_area->NP_ENABLE));
857 // Set the Nested Page Table pointer
858 ctrl_area->N_CR3 |= ((addr_t)vm_info.page_tables & 0xfffff000);
861 // ctrl_area->N_CR3 = Get_CR3();
862 // guest_state->cr3 |= (Get_CR3() & 0xfffff000);
864 guest_state->g_pat = 0x7040600070406ULL;
866 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));
867 PrintDebug("Set Guest CR3: lo: 0x%x hi: 0x%x\n", (uint_t)*(&(guest_state->cr3)), (uint_t)*((unsigned char *)&(guest_state->cr3) + 4));
869 // guest_state->cr0 |= 0x80000000;