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>
38 #include <palacios/svm_msr.h>
42 extern void v3_stgi();
43 extern void v3_clgi();
44 extern int v3_svm_launch(vmcb_t * vmcb, struct v3_gprs * vm_regs);
49 static vmcb_t * Allocate_VMCB() {
50 vmcb_t * vmcb_page = (vmcb_t *)V3_VAddr(V3_AllocPages(1));
52 memset(vmcb_page, 0, 4096);
59 #include <palacios/vmm_ctrl_regs.h>
61 static void Init_VMCB_BIOS(vmcb_t * vmcb, struct guest_info *vm_info) {
62 vmcb_ctrl_t * ctrl_area = GET_VMCB_CTRL_AREA(vmcb);
63 vmcb_saved_state_t * guest_state = GET_VMCB_SAVE_STATE_AREA(vmcb);
67 guest_state->rsp = vm_info->vm_regs.rsp;
68 // guest_state->rip = vm_info->rip;
69 guest_state->rip = 0xfff0;
73 //ctrl_area->instrs.instrs.CR0 = 1;
74 ctrl_area->cr_reads.cr0 = 1;
75 ctrl_area->cr_writes.cr0 = 1;
76 ctrl_area->cr_reads.cr4 = 1;
77 ctrl_area->cr_writes.cr4 = 1;
80 /* Set up the efer to enable 64 bit page tables */
83 struct efer_64 * efer = (struct efer_64 *)&(guest_state->efer);
84 struct cr4_32 * cr4 = (struct cr4_32 *)&(guest_state->cr4);
92 guest_state->efer |= EFER_MSR_svm_enable;
93 vm_info->guest_efer.value = 0x0LL;
95 v3_hook_msr(vm_info, EFER_MSR,
97 &v3_handle_efer_write,
102 guest_state->rflags = 0x00000002; // The reserved bit is always 1
103 ctrl_area->svm_instrs.VMRUN = 1;
104 ctrl_area->svm_instrs.VMMCALL = 1;
105 ctrl_area->svm_instrs.VMLOAD = 1;
106 ctrl_area->svm_instrs.VMSAVE = 1;
107 ctrl_area->svm_instrs.STGI = 1;
108 ctrl_area->svm_instrs.CLGI = 1;
109 ctrl_area->svm_instrs.SKINIT = 1;
110 ctrl_area->svm_instrs.RDTSCP = 1;
111 ctrl_area->svm_instrs.ICEBP = 1;
112 ctrl_area->svm_instrs.WBINVD = 1;
113 ctrl_area->svm_instrs.MONITOR = 1;
114 ctrl_area->svm_instrs.MWAIT_always = 1;
115 ctrl_area->svm_instrs.MWAIT_if_armed = 1;
118 ctrl_area->instrs.HLT = 1;
119 // guest_state->cr0 = 0x00000001; // PE
120 ctrl_area->guest_ASID = 1;
124 ctrl_area->exceptions.de = 1;
125 ctrl_area->exceptions.df = 1;
127 ctrl_area->exceptions.ts = 1;
128 ctrl_area->exceptions.ss = 1;
129 ctrl_area->exceptions.ac = 1;
130 ctrl_area->exceptions.mc = 1;
131 ctrl_area->exceptions.gp = 1;
132 ctrl_area->exceptions.ud = 1;
133 ctrl_area->exceptions.np = 1;
134 ctrl_area->exceptions.of = 1;
136 ctrl_area->exceptions.nmi = 1;
140 // Debug of boot on physical machines - 7/14/08
141 ctrl_area->instrs.NMI=1;
142 ctrl_area->instrs.SMI=1;
143 ctrl_area->instrs.INIT=1;
144 ctrl_area->instrs.PAUSE=1;
145 ctrl_area->instrs.shutdown_evts=1;
147 vm_info->vm_regs.rdx = 0x00000f00;
149 guest_state->cr0 = 0x60000010;
152 guest_state->cs.selector = 0xf000;
153 guest_state->cs.limit=0xffff;
154 guest_state->cs.base = 0x0000000f0000LL;
155 guest_state->cs.attrib.raw = 0xf3;
158 /* DEBUG FOR RETURN CODE */
159 ctrl_area->exit_code = 1;
162 struct vmcb_selector *segregs [] = {&(guest_state->ss), &(guest_state->ds), &(guest_state->es), &(guest_state->fs), &(guest_state->gs), NULL};
163 for ( i = 0; segregs[i] != NULL; i++) {
164 struct vmcb_selector * seg = segregs[i];
166 seg->selector = 0x0000;
167 // seg->base = seg->selector << 4;
168 seg->base = 0x00000000;
169 seg->attrib.raw = 0xf3;
173 guest_state->gdtr.limit = 0x0000ffff;
174 guest_state->gdtr.base = 0x0000000000000000LL;
175 guest_state->idtr.limit = 0x0000ffff;
176 guest_state->idtr.base = 0x0000000000000000LL;
178 guest_state->ldtr.selector = 0x0000;
179 guest_state->ldtr.limit = 0x0000ffff;
180 guest_state->ldtr.base = 0x0000000000000000LL;
181 guest_state->tr.selector = 0x0000;
182 guest_state->tr.limit = 0x0000ffff;
183 guest_state->tr.base = 0x0000000000000000LL;
186 guest_state->dr6 = 0x00000000ffff0ff0LL;
187 guest_state->dr7 = 0x0000000000000400LL;
194 if (vm_info->io_map.num_ports > 0) {
195 struct vmm_io_hook * iter;
196 addr_t io_port_bitmap;
198 io_port_bitmap = (addr_t)V3_VAddr(V3_AllocPages(3));
199 memset((uchar_t*)io_port_bitmap, 0, PAGE_SIZE * 3);
201 ctrl_area->IOPM_BASE_PA = (addr_t)V3_PAddr((void *)io_port_bitmap);
203 //PrintDebug("Setting up IO Map at 0x%x\n", io_port_bitmap);
205 FOREACH_IO_HOOK(vm_info->io_map, iter) {
206 ushort_t port = iter->port;
207 uchar_t * bitmap = (uchar_t *)io_port_bitmap;
209 bitmap += (port / 8);
210 // PrintDebug("Setting Bit for port 0x%x\n", port);
211 *bitmap |= 1 << (port % 8);
215 //PrintDebugMemDump((uchar_t*)io_port_bitmap, PAGE_SIZE *2);
217 ctrl_area->instrs.IOIO_PROT = 1;
221 PrintDebug("Exiting on interrupts\n");
222 ctrl_area->guest_ctrl.V_INTR_MASKING = 1;
223 ctrl_area->instrs.INTR = 1;
226 if (vm_info->shdw_pg_mode == SHADOW_PAGING) {
227 PrintDebug("Creating initial shadow page table\n");
231 /* Testing 64 bit page tables for long paged real mode guests */
232 // vm_info->direct_map_pt = (addr_t)V3_PAddr(create_passthrough_pts_64(vm_info));
233 vm_info->direct_map_pt = (addr_t)V3_PAddr(create_passthrough_pts_32(vm_info));
236 //vm_info->shdw_pg_state.shadow_cr3 |= (vm_info->direct_map_pt & ~0xfff);
237 vm_info->shdw_pg_state.shadow_cr3 = 0;
238 vm_info->shdw_pg_state.guest_cr0 = 0x0000000000000010LL;
239 PrintDebug("Created\n");
241 //guest_state->cr3 = vm_info->shdw_pg_state.shadow_cr3;
243 guest_state->cr3 = vm_info->direct_map_pt;
246 //PrintDebugPageTables((pde32_t*)(vm_info->shdw_pg_state.shadow_cr3.e_reg.low));
248 ctrl_area->cr_reads.cr3 = 1;
249 ctrl_area->cr_writes.cr3 = 1;
252 ctrl_area->instrs.INVLPG = 1;
253 ctrl_area->instrs.INVLPGA = 1;
255 ctrl_area->exceptions.pf = 1;
257 /* JRL: This is a performance killer, and a simplistic solution */
258 /* We need to fix this */
259 ctrl_area->TLB_CONTROL = 1;
262 guest_state->g_pat = 0x7040600070406ULL;
264 guest_state->cr0 |= 0x80000000;
266 } else if (vm_info->shdw_pg_mode == NESTED_PAGING) {
267 // Flush the TLB on entries/exits
268 ctrl_area->TLB_CONTROL = 1;
270 // Enable Nested Paging
271 ctrl_area->NP_ENABLE = 1;
273 PrintDebug("NP_Enable at 0x%p\n", (void *)&(ctrl_area->NP_ENABLE));
275 // Set the Nested Page Table pointer
276 vm_info->direct_map_pt = ((addr_t)create_passthrough_pts_32(vm_info) & ~0xfff);
277 ctrl_area->N_CR3 = vm_info->direct_map_pt;
279 // ctrl_area->N_CR3 = Get_CR3();
280 // guest_state->cr3 |= (Get_CR3() & 0xfffff000);
282 guest_state->g_pat = 0x7040600070406ULL;
286 if (vm_info->msr_map.num_hooks > 0) {
287 PrintDebug("Hooking %d msrs\n", vm_info->msr_map.num_hooks);
288 ctrl_area->MSRPM_BASE_PA = v3_init_svm_msr_map(vm_info);
289 ctrl_area->instrs.MSR_PROT = 1;
298 static int init_svm_guest(struct guest_info *info) {
300 PrintDebug("Allocating VMCB\n");
301 info->vmm_data = (void*)Allocate_VMCB();
304 //PrintDebug("Generating Guest nested page tables\n");
305 // info->page_tables = NULL;
306 //info->page_tables = generate_guest_page_tables_64(&(info->mem_layout), &(info->mem_list));
307 //info->page_tables = generate_guest_page_tables(&(info->mem_layout), &(info->mem_list));
308 // PrintDebugPageTables(info->page_tables);
311 PrintDebug("Initializing VMCB (addr=%p)\n", (void *)info->vmm_data);
312 Init_VMCB_BIOS((vmcb_t*)(info->vmm_data), info);
315 info->run_state = VM_STOPPED;
319 info->vm_regs.rdi = 0;
320 info->vm_regs.rsi = 0;
321 info->vm_regs.rbp = 0;
322 info->vm_regs.rsp = 0;
323 info->vm_regs.rbx = 0;
324 info->vm_regs.rdx = 0;
325 info->vm_regs.rcx = 0;
326 info->vm_regs.rax = 0;
333 // can we start a kernel thread here...
334 static int start_svm_guest(struct guest_info *info) {
335 vmcb_saved_state_t * guest_state = GET_VMCB_SAVE_STATE_AREA((vmcb_t*)(info->vmm_data));
336 vmcb_ctrl_t * guest_ctrl = GET_VMCB_CTRL_AREA((vmcb_t*)(info->vmm_data));
337 uint_t num_exits = 0;
341 PrintDebug("Launching SVM VM (vmcb=%p)\n", (void *)info->vmm_data);
342 //PrintDebugVMCB((vmcb_t*)(info->vmm_data));
344 info->run_state = VM_RUNNING;
348 uint_t vm_cr_low = 0, vm_cr_high = 0;
355 //PrintDebug("SVM Entry to rip=%p...\n", (void *)info->rip);
357 v3_get_msr(0xc0000101, &vm_cr_high, &vm_cr_low);
359 rdtscll(info->time_state.cached_host_tsc);
361 guest_ctrl->TSC_OFFSET = info->time_state.guest_tsc - info->time_state.cached_host_tsc;
363 v3_svm_launch((vmcb_t*)V3_PAddr(info->vmm_data), &(info->vm_regs));
366 v3_set_msr(0xc0000101, vm_cr_high, vm_cr_low);
367 //PrintDebug("SVM Returned\n");
371 v3_update_time(info, tmp_tsc - info->time_state.cached_host_tsc);
374 //PrintDebug("Turning on global interrupts\n");
378 if (num_exits % 25 == 0) {
379 PrintDebug("SVM Exit number %d\n", num_exits);
383 if (v3_handle_svm_exit(info) != 0) {
384 vmcb_ctrl_t * guest_ctrl = GET_VMCB_CTRL_AREA((vmcb_t*)(info->vmm_data));
386 addr_t linear_addr = 0;
388 info->run_state = VM_ERROR;
390 PrintDebug("SVM ERROR!!\n");
392 PrintDebug("RIP: %p\n", (void *)(addr_t)(guest_state->rip));
395 linear_addr = get_addr_linear(info, guest_state->rip, &(info->segments.cs));
398 PrintDebug("RIP Linear: %p\n", (void *)linear_addr);
399 v3_print_segments(info);
400 v3_print_ctrl_regs(info);
405 PrintDebug("SVM Exit Code: %p\n", (void *)(addr_t)guest_ctrl->exit_code);
407 PrintDebug("exit_info1 low = 0x%.8x\n", *(uint_t*)&(guest_ctrl->exit_info1));
408 PrintDebug("exit_info1 high = 0x%.8x\n", *(uint_t *)(((uchar_t *)&(guest_ctrl->exit_info1)) + 4));
410 PrintDebug("exit_info2 low = 0x%.8x\n", *(uint_t*)&(guest_ctrl->exit_info2));
411 PrintDebug("exit_info2 high = 0x%.8x\n", *(uint_t *)(((uchar_t *)&(guest_ctrl->exit_info2)) + 4));
413 if (info->mem_mode == PHYSICAL_MEM) {
414 guest_pa_to_host_va(info, linear_addr, &host_addr);
415 } else if (info->mem_mode == VIRTUAL_MEM) {
416 guest_va_to_host_va(info, linear_addr, &host_addr);
420 PrintDebug("Host Address of rip = 0x%p\n", (void *)host_addr);
422 PrintDebug("Instr (15 bytes) at %p:\n", (void *)host_addr);
423 PrintTraceMemDump((uchar_t *)host_addr, 15);
435 /* Checks machine SVM capability */
436 /* Implemented from: AMD Arch Manual 3, sect 15.4 */
437 int v3_is_svm_capable() {
441 uint_t vm_cr_low = 0, vm_cr_high = 0;
442 addr_t eax = 0, ebx = 0, ecx = 0, edx = 0;
444 v3_cpuid(CPUID_FEATURE_IDS, &eax, &ebx, &ecx, &edx);
446 PrintDebug("CPUID_FEATURE_IDS_ecx=0x%p\n", (void *)ecx);
448 if ((ecx & CPUID_FEATURE_IDS_ecx_svm_avail) == 0) {
449 PrintDebug("SVM Not Available\n");
452 v3_get_msr(SVM_VM_CR_MSR, &vm_cr_high, &vm_cr_low);
454 PrintDebug("SVM_VM_CR_MSR = 0x%x 0x%x\n", vm_cr_high, vm_cr_low);
456 if ((vm_cr_low & SVM_VM_CR_MSR_svmdis) == 1) {
457 PrintDebug("SVM is available but is disabled.\n");
459 v3_cpuid(CPUID_SVM_REV_AND_FEATURE_IDS, &eax, &ebx, &ecx, &edx);
461 PrintDebug("CPUID_FEATURE_IDS_edx=0x%p\n", (void *)edx);
463 if ((edx & CPUID_SVM_REV_AND_FEATURE_IDS_edx_svml) == 0) {
464 PrintDebug("SVM BIOS Disabled, not unlockable\n");
466 PrintDebug("SVM is locked with a key\n");
471 PrintDebug("SVM is available and enabled.\n");
473 v3_cpuid(CPUID_SVM_REV_AND_FEATURE_IDS, &eax, &ebx, &ecx, &edx);
475 PrintDebug("CPUID_FEATURE_IDS_edx=0x%p\n", (void *)edx);
477 if ((edx & CPUID_SVM_REV_AND_FEATURE_IDS_edx_np) == 0) {
478 PrintDebug("SVM Nested Paging not supported\n");
480 PrintDebug("SVM Nested Paging supported\n");
489 uint_t eax = 0, ebx = 0, ecx = 0, edx = 0;
490 addr_t vm_cr_low = 0, vm_cr_high = 0;
492 v3_cpuid(CPUID_FEATURE_IDS, &eax, &ebx, &ecx, &edx);
494 if ((ecx & CPUID_FEATURE_IDS_ecx_svm_avail) == 0) {
495 PrintDebug("SVM Not Available\n");
499 v3_get_msr(SVM_VM_CR_MSR, &vm_cr_high, &vm_cr_low);
501 PrintDebug("SVM_VM_CR_MSR = 0x%x 0x%x\n", vm_cr_high, vm_cr_low);
504 // this part is clearly wrong, since the np bit is in
506 if ((edx & CPUID_SVM_REV_AND_FEATURE_IDS_edx_np) == 1) {
507 PrintDebug("Nested Paging not supported\n");
509 PrintDebug("Nested Paging supported\n");
512 if ((vm_cr_low & SVM_VM_CR_MSR_svmdis) == 0) {
513 PrintDebug("SVM is disabled.\n");
517 v3_cpuid(CPUID_SVM_REV_AND_FEATURE_IDS, &eax, &ebx, &ecx, &edx);
519 if ((edx & CPUID_SVM_REV_AND_FEATURE_IDS_edx_svml) == 0) {
520 PrintDebug("SVM BIOS Disabled, not unlockable\n");
522 PrintDebug("SVM is locked with a key\n");
531 static int has_svm_nested_paging() {
532 addr_t eax = 0, ebx = 0, ecx = 0, edx = 0;
534 v3_cpuid(CPUID_SVM_REV_AND_FEATURE_IDS, &eax, &ebx, &ecx, &edx);
536 //PrintDebug("CPUID_FEATURE_IDS_edx=0x%x\n", edx);
538 if ((edx & CPUID_SVM_REV_AND_FEATURE_IDS_edx_np) == 0) {
539 PrintDebug("SVM Nested Paging not supported\n");
542 PrintDebug("SVM Nested Paging supported\n");
550 void v3_init_SVM(struct v3_ctrl_ops * vmm_ops) {
555 // Enable SVM on the CPU
556 v3_get_msr(EFER_MSR, &(msr.e_reg.high), &(msr.e_reg.low));
557 msr.e_reg.low |= EFER_MSR_svm_enable;
558 v3_set_msr(EFER_MSR, 0, msr.e_reg.low);
560 PrintDebug("SVM Enabled\n");
563 // Setup the host state save area
564 host_state = V3_AllocPages(4);
568 // msr.e_reg.high = 0;
569 //msr.e_reg.low = (uint_t)host_state;
570 msr.r_reg = (addr_t)host_state;
572 PrintDebug("Host State being saved at %p\n", (void *)(addr_t)host_state);
573 v3_set_msr(SVM_VM_HSAVE_PA_MSR, msr.e_reg.high, msr.e_reg.low);
577 // Setup the SVM specific vmm operations
578 vmm_ops->init_guest = &init_svm_guest;
579 vmm_ops->start_guest = &start_svm_guest;
580 vmm_ops->has_nested_paging = &has_svm_nested_paging;
636 /*static void Init_VMCB(vmcb_t * vmcb, struct guest_info vm_info) {
637 vmcb_ctrl_t * ctrl_area = GET_VMCB_CTRL_AREA(vmcb);
638 vmcb_saved_state_t * guest_state = GET_VMCB_SAVE_STATE_AREA(vmcb);
642 guest_state->rsp = vm_info.vm_regs.rsp;
643 guest_state->rip = vm_info.rip;
646 //ctrl_area->instrs.instrs.CR0 = 1;
647 ctrl_area->cr_reads.cr0 = 1;
648 ctrl_area->cr_writes.cr0 = 1;
650 guest_state->efer |= EFER_MSR_svm_enable;
651 guest_state->rflags = 0x00000002; // The reserved bit is always 1
652 ctrl_area->svm_instrs.VMRUN = 1;
653 // guest_state->cr0 = 0x00000001; // PE
654 ctrl_area->guest_ASID = 1;
657 ctrl_area->exceptions.de = 1;
658 ctrl_area->exceptions.df = 1;
659 ctrl_area->exceptions.pf = 1;
660 ctrl_area->exceptions.ts = 1;
661 ctrl_area->exceptions.ss = 1;
662 ctrl_area->exceptions.ac = 1;
663 ctrl_area->exceptions.mc = 1;
664 ctrl_area->exceptions.gp = 1;
665 ctrl_area->exceptions.ud = 1;
666 ctrl_area->exceptions.np = 1;
667 ctrl_area->exceptions.of = 1;
668 ctrl_area->exceptions.nmi = 1;
670 guest_state->cs.selector = 0x0000;
671 guest_state->cs.limit=~0u;
672 guest_state->cs.base = guest_state->cs.selector<<4;
673 guest_state->cs.attrib.raw = 0xf3;
676 struct vmcb_selector *segregs [] = {&(guest_state->ss), &(guest_state->ds), &(guest_state->es), &(guest_state->fs), &(guest_state->gs), NULL};
677 for ( i = 0; segregs[i] != NULL; i++) {
678 struct vmcb_selector * seg = segregs[i];
680 seg->selector = 0x0000;
681 seg->base = seg->selector << 4;
682 seg->attrib.raw = 0xf3;
686 if (vm_info.io_map.num_ports > 0) {
687 struct vmm_io_hook * iter;
688 addr_t io_port_bitmap;
690 io_port_bitmap = (addr_t)V3_AllocPages(3);
691 memset((uchar_t*)io_port_bitmap, 0, PAGE_SIZE * 3);
693 ctrl_area->IOPM_BASE_PA = io_port_bitmap;
695 //PrintDebug("Setting up IO Map at 0x%x\n", io_port_bitmap);
697 FOREACH_IO_HOOK(vm_info.io_map, iter) {
698 ushort_t port = iter->port;
699 uchar_t * bitmap = (uchar_t *)io_port_bitmap;
701 bitmap += (port / 8);
702 PrintDebug("Setting Bit in block %x\n", bitmap);
703 *bitmap |= 1 << (port % 8);
707 //PrintDebugMemDump((uchar_t*)io_port_bitmap, PAGE_SIZE *2);
709 ctrl_area->instrs.IOIO_PROT = 1;
712 ctrl_area->instrs.INTR = 1;
716 if (vm_info.page_mode == SHADOW_PAGING) {
717 PrintDebug("Creating initial shadow page table\n");
718 vm_info.shdw_pg_state.shadow_cr3 |= ((addr_t)create_passthrough_pts_32(&vm_info) & ~0xfff);
719 PrintDebug("Created\n");
721 guest_state->cr3 = vm_info.shdw_pg_state.shadow_cr3;
723 ctrl_area->cr_reads.cr3 = 1;
724 ctrl_area->cr_writes.cr3 = 1;
727 ctrl_area->instrs.INVLPG = 1;
728 ctrl_area->instrs.INVLPGA = 1;
730 guest_state->g_pat = 0x7040600070406ULL;
732 guest_state->cr0 |= 0x80000000;
733 } else if (vm_info.page_mode == NESTED_PAGING) {
734 // Flush the TLB on entries/exits
735 //ctrl_area->TLB_CONTROL = 1;
737 // Enable Nested Paging
738 //ctrl_area->NP_ENABLE = 1;
740 //PrintDebug("NP_Enable at 0x%x\n", &(ctrl_area->NP_ENABLE));
742 // Set the Nested Page Table pointer
743 // ctrl_area->N_CR3 = ((addr_t)vm_info.page_tables);
744 // ctrl_area->N_CR3 = (addr_t)(vm_info.page_tables);
746 // ctrl_area->N_CR3 = Get_CR3();
747 // guest_state->cr3 |= (Get_CR3() & 0xfffff000);
749 // guest_state->g_pat = 0x7040600070406ULL;
764 void Init_VMCB_pe(vmcb_t *vmcb, struct guest_info vm_info) {
765 vmcb_ctrl_t * ctrl_area = GET_VMCB_CTRL_AREA(vmcb);
766 vmcb_saved_state_t * guest_state = GET_VMCB_SAVE_STATE_AREA(vmcb);
770 guest_state->rsp = vm_info.vm_regs.rsp;
771 guest_state->rip = vm_info.rip;
774 /* I pretty much just gutted this from TVMM */
775 /* Note: That means its probably wrong */
777 // set the segment registers to mirror ours
778 guest_state->cs.selector = 1<<3;
779 guest_state->cs.attrib.fields.type = 0xa; // Code segment+read
780 guest_state->cs.attrib.fields.S = 1;
781 guest_state->cs.attrib.fields.P = 1;
782 guest_state->cs.attrib.fields.db = 1;
783 guest_state->cs.attrib.fields.G = 1;
784 guest_state->cs.limit = 0xfffff;
785 guest_state->cs.base = 0;
787 struct vmcb_selector *segregs [] = {&(guest_state->ss), &(guest_state->ds), &(guest_state->es), &(guest_state->fs), &(guest_state->gs), NULL};
788 for ( i = 0; segregs[i] != NULL; i++) {
789 struct vmcb_selector * seg = segregs[i];
791 seg->selector = 2<<3;
792 seg->attrib.fields.type = 0x2; // Data Segment+read/write
793 seg->attrib.fields.S = 1;
794 seg->attrib.fields.P = 1;
795 seg->attrib.fields.db = 1;
796 seg->attrib.fields.G = 1;
797 seg->limit = 0xfffff;
803 /* JRL THIS HAS TO GO */
805 // guest_state->tr.selector = GetTR_Selector();
806 guest_state->tr.attrib.fields.type = 0x9;
807 guest_state->tr.attrib.fields.P = 1;
808 // guest_state->tr.limit = GetTR_Limit();
809 //guest_state->tr.base = GetTR_Base();// - 0x2000;
817 guest_state->efer |= EFER_MSR_svm_enable;
818 guest_state->rflags = 0x00000002; // The reserved bit is always 1
819 ctrl_area->svm_instrs.VMRUN = 1;
820 guest_state->cr0 = 0x00000001; // PE
821 ctrl_area->guest_ASID = 1;
824 // guest_state->cpl = 0;
830 ctrl_area->cr_writes.cr4 = 1;
832 ctrl_area->exceptions.de = 1;
833 ctrl_area->exceptions.df = 1;
834 ctrl_area->exceptions.pf = 1;
835 ctrl_area->exceptions.ts = 1;
836 ctrl_area->exceptions.ss = 1;
837 ctrl_area->exceptions.ac = 1;
838 ctrl_area->exceptions.mc = 1;
839 ctrl_area->exceptions.gp = 1;
840 ctrl_area->exceptions.ud = 1;
841 ctrl_area->exceptions.np = 1;
842 ctrl_area->exceptions.of = 1;
843 ctrl_area->exceptions.nmi = 1;
847 ctrl_area->instrs.IOIO_PROT = 1;
848 ctrl_area->IOPM_BASE_PA = (uint_t)V3_AllocPages(3);
852 tmp_reg.r_reg = ctrl_area->IOPM_BASE_PA;
853 memset((void*)(tmp_reg.e_reg.low), 0xffffffff, PAGE_SIZE * 2);
856 ctrl_area->instrs.INTR = 1;
863 memset(gdt_buf, 0, 6);
864 memset(idt_buf, 0, 6);
867 uint_t gdt_base, idt_base;
868 ushort_t gdt_limit, idt_limit;
871 gdt_base = *(ulong_t*)((uchar_t*)gdt_buf + 2) & 0xffffffff;
872 gdt_limit = *(ushort_t*)(gdt_buf) & 0xffff;
873 PrintDebug("GDT: base: %x, limit: %x\n", gdt_base, gdt_limit);
876 idt_base = *(ulong_t*)(idt_buf + 2) & 0xffffffff;
877 idt_limit = *(ushort_t*)(idt_buf) & 0xffff;
878 PrintDebug("IDT: base: %x, limit: %x\n",idt_base, idt_limit);
881 // gdt_base -= 0x2000;
882 //idt_base -= 0x2000;
884 guest_state->gdtr.base = gdt_base;
885 guest_state->gdtr.limit = gdt_limit;
886 guest_state->idtr.base = idt_base;
887 guest_state->idtr.limit = idt_limit;
893 // also determine if CPU supports nested paging
895 if (vm_info.page_tables) {
897 // Flush the TLB on entries/exits
898 ctrl_area->TLB_CONTROL = 1;
900 // Enable Nested Paging
901 ctrl_area->NP_ENABLE = 1;
903 PrintDebug("NP_Enable at 0x%x\n", &(ctrl_area->NP_ENABLE));
905 // Set the Nested Page Table pointer
906 ctrl_area->N_CR3 |= ((addr_t)vm_info.page_tables & 0xfffff000);
909 // ctrl_area->N_CR3 = Get_CR3();
910 // guest_state->cr3 |= (Get_CR3() & 0xfffff000);
912 guest_state->g_pat = 0x7040600070406ULL;
914 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));
915 PrintDebug("Set Guest CR3: lo: 0x%x hi: 0x%x\n", (uint_t)*(&(guest_state->cr3)), (uint_t)*((unsigned char *)&(guest_state->cr3) + 4));
917 // guest_state->cr0 |= 0x80000000;