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".
21 #include <palacios/svm.h>
22 #include <palacios/vmm.h>
24 #include <palacios/vmcb.h>
25 #include <palacios/vmm_mem.h>
26 #include <palacios/vmm_paging.h>
27 #include <palacios/svm_handler.h>
29 #include <palacios/vmm_debug.h>
30 #include <palacios/vm_guest_mem.h>
32 #include <palacios/vmm_decoder.h>
33 #include <palacios/vmm_string.h>
34 #include <palacios/vmm_lowlevel.h>
35 #include <palacios/svm_msr.h>
37 #include <palacios/vmm_rbtree.h>
39 #include <palacios/vmm_profiler.h>
41 #include <palacios/vmm_direct_paging.h>
43 extern void v3_stgi();
44 extern void v3_clgi();
45 //extern int v3_svm_launch(vmcb_t * vmcb, struct v3_gprs * vm_regs, uint64_t * fs, uint64_t * gs);
46 extern int v3_svm_launch(vmcb_t * vmcb, struct v3_gprs * vm_regs);
51 static vmcb_t * Allocate_VMCB() {
52 vmcb_t * vmcb_page = (vmcb_t *)V3_VAddr(V3_AllocPages(1));
54 memset(vmcb_page, 0, 4096);
61 #include <palacios/vmm_ctrl_regs.h>
63 static void Init_VMCB_BIOS(vmcb_t * vmcb, struct guest_info *vm_info) {
64 vmcb_ctrl_t * ctrl_area = GET_VMCB_CTRL_AREA(vmcb);
65 vmcb_saved_state_t * guest_state = GET_VMCB_SAVE_STATE_AREA(vmcb);
69 guest_state->rsp = vm_info->vm_regs.rsp;
70 // guest_state->rip = vm_info->rip;
71 guest_state->rip = 0xfff0;
75 //ctrl_area->instrs.instrs.CR0 = 1;
76 ctrl_area->cr_reads.cr0 = 1;
77 ctrl_area->cr_writes.cr0 = 1;
78 //ctrl_area->cr_reads.cr4 = 1;
79 ctrl_area->cr_writes.cr4 = 1;
82 /* Set up the efer to enable 64 bit page tables */
85 struct efer_64 * efer = (struct efer_64 *)&(guest_state->efer);
86 struct cr4_32 * cr4 = (struct cr4_32 *)&(guest_state->cr4);
94 guest_state->efer |= EFER_MSR_svm_enable;
95 vm_info->guest_efer.value = 0x0LL;
97 v3_hook_msr(vm_info, EFER_MSR,
99 &v3_handle_efer_write,
104 guest_state->rflags = 0x00000002; // The reserved bit is always 1
105 ctrl_area->svm_instrs.VMRUN = 1;
106 ctrl_area->svm_instrs.VMMCALL = 1;
107 ctrl_area->svm_instrs.VMLOAD = 1;
108 ctrl_area->svm_instrs.VMSAVE = 1;
109 ctrl_area->svm_instrs.STGI = 1;
110 ctrl_area->svm_instrs.CLGI = 1;
111 ctrl_area->svm_instrs.SKINIT = 1;
112 ctrl_area->svm_instrs.RDTSCP = 1;
113 ctrl_area->svm_instrs.ICEBP = 1;
114 ctrl_area->svm_instrs.WBINVD = 1;
115 ctrl_area->svm_instrs.MONITOR = 1;
116 ctrl_area->svm_instrs.MWAIT_always = 1;
117 ctrl_area->svm_instrs.MWAIT_if_armed = 1;
120 ctrl_area->instrs.HLT = 1;
121 // guest_state->cr0 = 0x00000001; // PE
122 ctrl_area->guest_ASID = 1;
126 ctrl_area->exceptions.de = 1;
127 ctrl_area->exceptions.df = 1;
129 ctrl_area->exceptions.ts = 1;
130 ctrl_area->exceptions.ss = 1;
131 ctrl_area->exceptions.ac = 1;
132 ctrl_area->exceptions.mc = 1;
133 ctrl_area->exceptions.gp = 1;
134 ctrl_area->exceptions.ud = 1;
135 ctrl_area->exceptions.np = 1;
136 ctrl_area->exceptions.of = 1;
138 ctrl_area->exceptions.nmi = 1;
142 // Debug of boot on physical machines - 7/14/08
143 ctrl_area->instrs.NMI=1;
144 ctrl_area->instrs.SMI=1;
145 ctrl_area->instrs.INIT=1;
146 ctrl_area->instrs.PAUSE=1;
147 ctrl_area->instrs.shutdown_evts=1;
149 vm_info->vm_regs.rdx = 0x00000f00;
151 guest_state->cr0 = 0x60000010;
154 guest_state->cs.selector = 0xf000;
155 guest_state->cs.limit=0xffff;
156 guest_state->cs.base = 0x0000000f0000LL;
157 guest_state->cs.attrib.raw = 0xf3;
160 /* DEBUG FOR RETURN CODE */
161 ctrl_area->exit_code = 1;
164 struct vmcb_selector *segregs [] = {&(guest_state->ss), &(guest_state->ds), &(guest_state->es), &(guest_state->fs), &(guest_state->gs), NULL};
165 for ( i = 0; segregs[i] != NULL; i++) {
166 struct vmcb_selector * seg = segregs[i];
168 seg->selector = 0x0000;
169 // seg->base = seg->selector << 4;
170 seg->base = 0x00000000;
171 seg->attrib.raw = 0xf3;
175 guest_state->gdtr.limit = 0x0000ffff;
176 guest_state->gdtr.base = 0x0000000000000000LL;
177 guest_state->idtr.limit = 0x0000ffff;
178 guest_state->idtr.base = 0x0000000000000000LL;
180 guest_state->ldtr.selector = 0x0000;
181 guest_state->ldtr.limit = 0x0000ffff;
182 guest_state->ldtr.base = 0x0000000000000000LL;
183 guest_state->tr.selector = 0x0000;
184 guest_state->tr.limit = 0x0000ffff;
185 guest_state->tr.base = 0x0000000000000000LL;
188 guest_state->dr6 = 0x00000000ffff0ff0LL;
189 guest_state->dr7 = 0x0000000000000400LL;
196 if ( !RB_EMPTY_ROOT(&(vm_info->io_map)) ) {
197 struct v3_io_hook * iter;
198 struct rb_node * io_node = v3_rb_first(&(vm_info->io_map));
199 addr_t io_port_bitmap;
202 io_port_bitmap = (addr_t)V3_VAddr(V3_AllocPages(3));
203 memset((uchar_t*)io_port_bitmap, 0, PAGE_SIZE * 3);
205 ctrl_area->IOPM_BASE_PA = (addr_t)V3_PAddr((void *)io_port_bitmap);
207 //PrintDebug("Setting up IO Map at 0x%x\n", io_port_bitmap);
210 iter = rb_entry(io_node, struct v3_io_hook, tree_node);
212 ushort_t port = iter->port;
213 uchar_t * bitmap = (uchar_t *)io_port_bitmap;
214 //PrintDebug("%d: Hooking Port %d\n", i, port);
216 bitmap += (port / 8);
217 // PrintDebug("Setting Bit for port 0x%x\n", port);
218 *bitmap |= 1 << (port % 8);
221 } while ((io_node = v3_rb_next(io_node)));
224 //PrintDebugMemDump((uchar_t*)io_port_bitmap, PAGE_SIZE *2);
226 ctrl_area->instrs.IOIO_PROT = 1;
230 PrintDebug("Exiting on interrupts\n");
231 ctrl_area->guest_ctrl.V_INTR_MASKING = 1;
232 ctrl_area->instrs.INTR = 1;
235 if (vm_info->shdw_pg_mode == SHADOW_PAGING) {
236 PrintDebug("Creating initial shadow page table\n");
240 /* Testing 64 bit page tables for long paged real mode guests */
241 // vm_info->direct_map_pt = (addr_t)V3_PAddr(create_passthrough_pts_64(vm_info));
242 vm_info->direct_map_pt = (addr_t)V3_PAddr((void *)v3_create_direct_passthrough_pts(vm_info));
245 vm_info->shdw_pg_state.guest_cr0 = 0x0000000000000010LL;
246 PrintDebug("Created\n");
249 guest_state->cr3 = vm_info->direct_map_pt;
252 //PrintDebugPageTables((pde32_t*)(vm_info->shdw_pg_state.shadow_cr3.e_reg.low));
254 ctrl_area->cr_reads.cr3 = 1;
255 ctrl_area->cr_writes.cr3 = 1;
258 ctrl_area->instrs.INVLPG = 1;
259 ctrl_area->instrs.INVLPGA = 1;
261 ctrl_area->exceptions.pf = 1;
263 /* JRL: This is a performance killer, and a simplistic solution */
264 /* We need to fix this */
265 ctrl_area->TLB_CONTROL = 1;
268 guest_state->g_pat = 0x7040600070406ULL;
270 guest_state->cr0 |= 0x80000000;
272 } else if (vm_info->shdw_pg_mode == NESTED_PAGING) {
273 // Flush the TLB on entries/exits
274 ctrl_area->TLB_CONTROL = 1;
276 // Enable Nested Paging
277 ctrl_area->NP_ENABLE = 1;
279 PrintDebug("NP_Enable at 0x%p\n", (void *)&(ctrl_area->NP_ENABLE));
281 // Set the Nested Page Table pointer
282 vm_info->direct_map_pt = ((addr_t)v3_create_direct_passthrough_pts(vm_info) & ~0xfff);
283 ctrl_area->N_CR3 = vm_info->direct_map_pt;
285 // ctrl_area->N_CR3 = Get_CR3();
286 // guest_state->cr3 |= (Get_CR3() & 0xfffff000);
288 guest_state->g_pat = 0x7040600070406ULL;
292 if (vm_info->msr_map.num_hooks > 0) {
293 PrintDebug("Hooking %d msrs\n", vm_info->msr_map.num_hooks);
294 ctrl_area->MSRPM_BASE_PA = v3_init_svm_msr_map(vm_info);
295 ctrl_area->instrs.MSR_PROT = 1;
300 /* Safety locations for fs/gs */
306 static int init_svm_guest(struct guest_info *info) {
307 PrintDebug("Allocating VMCB\n");
308 info->vmm_data = (void*)Allocate_VMCB();
311 //PrintDebug("Generating Guest nested page tables\n");
312 // info->page_tables = NULL;
313 //info->page_tables = generate_guest_page_tables_64(&(info->mem_layout), &(info->mem_list));
314 //info->page_tables = generate_guest_page_tables(&(info->mem_layout), &(info->mem_list));
315 // PrintDebugPageTables(info->page_tables);
318 PrintDebug("Initializing VMCB (addr=%p)\n", (void *)info->vmm_data);
319 Init_VMCB_BIOS((vmcb_t*)(info->vmm_data), info);
322 info->run_state = VM_STOPPED;
326 info->vm_regs.rdi = 0;
327 info->vm_regs.rsi = 0;
328 info->vm_regs.rbp = 0;
329 info->vm_regs.rsp = 0;
330 info->vm_regs.rbx = 0;
331 info->vm_regs.rdx = 0;
332 info->vm_regs.rcx = 0;
333 info->vm_regs.rax = 0;
340 // can we start a kernel thread here...
341 static int start_svm_guest(struct guest_info *info) {
342 vmcb_saved_state_t * guest_state = GET_VMCB_SAVE_STATE_AREA((vmcb_t*)(info->vmm_data));
343 // vmcb_ctrl_t * guest_ctrl = GET_VMCB_CTRL_AREA((vmcb_t*)(info->vmm_data));
344 uint_t num_exits = 0;
348 PrintDebug("Launching SVM VM (vmcb=%p)\n", (void *)info->vmm_data);
349 //PrintDebugVMCB((vmcb_t*)(info->vmm_data));
351 info->run_state = VM_RUNNING;
358 #define MSR_STAR 0xc0000081
359 #define MSR_LSTAR 0xc0000082
360 #define MSR_CSTAR 0xc0000083
361 #define MSR_SF_MASK 0xc0000084
362 #define MSR_GS_BASE 0xc0000101
363 #define MSR_KERNGS_BASE 0xc0000102
366 struct v3_msr host_cstar;
367 struct v3_msr host_star;
368 struct v3_msr host_lstar;
369 struct v3_msr host_syscall_mask;
370 struct v3_msr host_gs_base;
371 struct v3_msr host_kerngs_base;
378 PrintDebug("SVM Entry to CS=%p rip=%p...\n",
379 (void *)(addr_t)info->segments.cs.base,
380 (void *)(addr_t)info->rip);
384 v3_get_msr(MSR_STAR, &(host_star.hi), &(host_star.lo));
385 v3_get_msr(MSR_LSTAR, &(host_lstar.hi), &(host_lstar.lo));
386 v3_get_msr(MSR_CSTAR, &(host_cstar.hi), &(host_cstar.lo));
387 v3_get_msr(MSR_SF_MASK, &(host_syscall_mask.hi), &(host_syscall_mask.lo));
388 v3_get_msr(MSR_GS_BASE, &(host_gs_base.hi), &(host_gs_base.lo));
389 v3_get_msr(MSR_KERNGS_BASE, &(host_kerngs_base.hi), &(host_kerngs_base.lo));
392 rdtscll(info->time_state.cached_host_tsc);
393 // guest_ctrl->TSC_OFFSET = info->time_state.guest_tsc - info->time_state.cached_host_tsc;
395 //v3_svm_launch((vmcb_t*)V3_PAddr(info->vmm_data), &(info->vm_regs), &(info->fs), &(info->gs));
396 v3_svm_launch((vmcb_t*)V3_PAddr(info->vmm_data), &(info->vm_regs));
400 v3_set_msr(MSR_STAR, host_star.hi, host_star.lo);
401 v3_set_msr(MSR_LSTAR, host_lstar.hi, host_lstar.lo);
402 v3_set_msr(MSR_CSTAR, host_cstar.hi, host_cstar.lo);
403 v3_set_msr(MSR_SF_MASK, host_syscall_mask.hi, host_syscall_mask.lo);
404 v3_set_msr(MSR_GS_BASE, host_gs_base.hi, host_gs_base.lo);
405 v3_set_msr(MSR_KERNGS_BASE, host_kerngs_base.hi, host_kerngs_base.lo);
407 //PrintDebug("SVM Returned\n");
411 v3_update_time(info, tmp_tsc - info->time_state.cached_host_tsc);
414 //PrintDebug("Turning on global interrupts\n");
418 if ((num_exits % 5000) == 0) {
419 PrintDebug("SVM Exit number %d\n", num_exits);
421 if (info->enable_profiler) {
422 v3_print_profile(info);
428 if (v3_handle_svm_exit(info) != 0) {
429 vmcb_ctrl_t * guest_ctrl = GET_VMCB_CTRL_AREA((vmcb_t*)(info->vmm_data));
431 addr_t linear_addr = 0;
433 info->run_state = VM_ERROR;
435 PrintDebug("SVM ERROR!!\n");
437 PrintDebug("RIP: %p\n", (void *)(addr_t)(guest_state->rip));
440 linear_addr = get_addr_linear(info, guest_state->rip, &(info->segments.cs));
443 PrintDebug("RIP Linear: %p\n", (void *)linear_addr);
444 v3_print_segments(info);
445 v3_print_ctrl_regs(info);
446 if (info->shdw_pg_mode == SHADOW_PAGING) {
447 PrintDebug("Shadow Paging Guest Registers:\n");
448 PrintDebug("\tGuest CR0=%p\n", (void *)(addr_t)(info->shdw_pg_state.guest_cr0));
449 PrintDebug("\tGuest CR3=%p\n", (void *)(addr_t)(info->shdw_pg_state.guest_cr3));
455 PrintDebug("SVM Exit Code: %p\n", (void *)(addr_t)guest_ctrl->exit_code);
457 PrintDebug("exit_info1 low = 0x%.8x\n", *(uint_t*)&(guest_ctrl->exit_info1));
458 PrintDebug("exit_info1 high = 0x%.8x\n", *(uint_t *)(((uchar_t *)&(guest_ctrl->exit_info1)) + 4));
460 PrintDebug("exit_info2 low = 0x%.8x\n", *(uint_t*)&(guest_ctrl->exit_info2));
461 PrintDebug("exit_info2 high = 0x%.8x\n", *(uint_t *)(((uchar_t *)&(guest_ctrl->exit_info2)) + 4));
463 if (info->mem_mode == PHYSICAL_MEM) {
464 guest_pa_to_host_va(info, linear_addr, &host_addr);
465 } else if (info->mem_mode == VIRTUAL_MEM) {
466 guest_va_to_host_va(info, linear_addr, &host_addr);
470 PrintDebug("Host Address of rip = 0x%p\n", (void *)host_addr);
472 PrintDebug("Instr (15 bytes) at %p:\n", (void *)host_addr);
473 PrintTraceMemDump((uchar_t *)host_addr, 15);
485 /* Checks machine SVM capability */
486 /* Implemented from: AMD Arch Manual 3, sect 15.4 */
487 int v3_is_svm_capable() {
489 uint_t vm_cr_low = 0, vm_cr_high = 0;
490 addr_t eax = 0, ebx = 0, ecx = 0, edx = 0;
492 v3_cpuid(CPUID_FEATURE_IDS, &eax, &ebx, &ecx, &edx);
494 PrintDebug("CPUID_FEATURE_IDS_ecx=%p\n", (void *)ecx);
496 if ((ecx & CPUID_FEATURE_IDS_ecx_svm_avail) == 0) {
497 PrintDebug("SVM Not Available\n");
500 v3_get_msr(SVM_VM_CR_MSR, &vm_cr_high, &vm_cr_low);
502 PrintDebug("SVM_VM_CR_MSR = 0x%x 0x%x\n", vm_cr_high, vm_cr_low);
504 if ((vm_cr_low & SVM_VM_CR_MSR_svmdis) == 1) {
505 PrintDebug("SVM is available but is disabled.\n");
507 v3_cpuid(CPUID_SVM_REV_AND_FEATURE_IDS, &eax, &ebx, &ecx, &edx);
509 PrintDebug("CPUID_FEATURE_IDS_edx=%p\n", (void *)edx);
511 if ((edx & CPUID_SVM_REV_AND_FEATURE_IDS_edx_svml) == 0) {
512 PrintDebug("SVM BIOS Disabled, not unlockable\n");
514 PrintDebug("SVM is locked with a key\n");
519 PrintDebug("SVM is available and enabled.\n");
521 v3_cpuid(CPUID_SVM_REV_AND_FEATURE_IDS, &eax, &ebx, &ecx, &edx);
522 PrintDebug("CPUID_FEATURE_IDS_eax=%p\n", (void *)eax);
523 PrintDebug("CPUID_FEATURE_IDS_ebx=%p\n", (void *)ebx);
524 PrintDebug("CPUID_FEATURE_IDS_ecx=%p\n", (void *)ecx);
525 PrintDebug("CPUID_FEATURE_IDS_edx=%p\n", (void *)edx);
528 if ((edx & CPUID_SVM_REV_AND_FEATURE_IDS_edx_np) == 0) {
529 PrintDebug("SVM Nested Paging not supported\n");
531 PrintDebug("SVM Nested Paging supported\n");
539 static int has_svm_nested_paging() {
540 addr_t eax = 0, ebx = 0, ecx = 0, edx = 0;
542 v3_cpuid(CPUID_SVM_REV_AND_FEATURE_IDS, &eax, &ebx, &ecx, &edx);
544 //PrintDebug("CPUID_FEATURE_IDS_edx=0x%x\n", edx);
546 if ((edx & CPUID_SVM_REV_AND_FEATURE_IDS_edx_np) == 0) {
547 PrintDebug("SVM Nested Paging not supported\n");
550 PrintDebug("SVM Nested Paging supported\n");
557 void v3_init_SVM(struct v3_ctrl_ops * vmm_ops) {
561 // Enable SVM on the CPU
562 v3_get_msr(EFER_MSR, &(msr.e_reg.high), &(msr.e_reg.low));
563 msr.e_reg.low |= EFER_MSR_svm_enable;
564 v3_set_msr(EFER_MSR, 0, msr.e_reg.low);
566 PrintDebug("SVM Enabled\n");
569 // Setup the host state save area
570 host_state = V3_AllocPages(4);
574 // msr.e_reg.high = 0;
575 //msr.e_reg.low = (uint_t)host_state;
576 msr.r_reg = (addr_t)host_state;
578 PrintDebug("Host State being saved at %p\n", (void *)(addr_t)host_state);
579 v3_set_msr(SVM_VM_HSAVE_PA_MSR, msr.e_reg.high, msr.e_reg.low);
583 // Setup the SVM specific vmm operations
584 vmm_ops->init_guest = &init_svm_guest;
585 vmm_ops->start_guest = &start_svm_guest;
586 vmm_ops->has_nested_paging = &has_svm_nested_paging;
642 /*static void Init_VMCB(vmcb_t * vmcb, struct guest_info vm_info) {
643 vmcb_ctrl_t * ctrl_area = GET_VMCB_CTRL_AREA(vmcb);
644 vmcb_saved_state_t * guest_state = GET_VMCB_SAVE_STATE_AREA(vmcb);
648 guest_state->rsp = vm_info.vm_regs.rsp;
649 guest_state->rip = vm_info.rip;
652 //ctrl_area->instrs.instrs.CR0 = 1;
653 ctrl_area->cr_reads.cr0 = 1;
654 ctrl_area->cr_writes.cr0 = 1;
656 guest_state->efer |= EFER_MSR_svm_enable;
657 guest_state->rflags = 0x00000002; // The reserved bit is always 1
658 ctrl_area->svm_instrs.VMRUN = 1;
659 // guest_state->cr0 = 0x00000001; // PE
660 ctrl_area->guest_ASID = 1;
663 ctrl_area->exceptions.de = 1;
664 ctrl_area->exceptions.df = 1;
665 ctrl_area->exceptions.pf = 1;
666 ctrl_area->exceptions.ts = 1;
667 ctrl_area->exceptions.ss = 1;
668 ctrl_area->exceptions.ac = 1;
669 ctrl_area->exceptions.mc = 1;
670 ctrl_area->exceptions.gp = 1;
671 ctrl_area->exceptions.ud = 1;
672 ctrl_area->exceptions.np = 1;
673 ctrl_area->exceptions.of = 1;
674 ctrl_area->exceptions.nmi = 1;
676 guest_state->cs.selector = 0x0000;
677 guest_state->cs.limit=~0u;
678 guest_state->cs.base = guest_state->cs.selector<<4;
679 guest_state->cs.attrib.raw = 0xf3;
682 struct vmcb_selector *segregs [] = {&(guest_state->ss), &(guest_state->ds), &(guest_state->es), &(guest_state->fs), &(guest_state->gs), NULL};
683 for ( i = 0; segregs[i] != NULL; i++) {
684 struct vmcb_selector * seg = segregs[i];
686 seg->selector = 0x0000;
687 seg->base = seg->selector << 4;
688 seg->attrib.raw = 0xf3;
692 if (vm_info.io_map.num_ports > 0) {
693 struct vmm_io_hook * iter;
694 addr_t io_port_bitmap;
696 io_port_bitmap = (addr_t)V3_AllocPages(3);
697 memset((uchar_t*)io_port_bitmap, 0, PAGE_SIZE * 3);
699 ctrl_area->IOPM_BASE_PA = io_port_bitmap;
701 //PrintDebug("Setting up IO Map at 0x%x\n", io_port_bitmap);
703 FOREACH_IO_HOOK(vm_info.io_map, iter) {
704 ushort_t port = iter->port;
705 uchar_t * bitmap = (uchar_t *)io_port_bitmap;
707 bitmap += (port / 8);
708 PrintDebug("Setting Bit in block %x\n", bitmap);
709 *bitmap |= 1 << (port % 8);
713 //PrintDebugMemDump((uchar_t*)io_port_bitmap, PAGE_SIZE *2);
715 ctrl_area->instrs.IOIO_PROT = 1;
718 ctrl_area->instrs.INTR = 1;
722 if (vm_info.page_mode == SHADOW_PAGING) {
723 PrintDebug("Creating initial shadow page table\n");
724 vm_info.shdw_pg_state.shadow_cr3 |= ((addr_t)create_passthrough_pts_32(&vm_info) & ~0xfff);
725 PrintDebug("Created\n");
727 guest_state->cr3 = vm_info.shdw_pg_state.shadow_cr3;
729 ctrl_area->cr_reads.cr3 = 1;
730 ctrl_area->cr_writes.cr3 = 1;
733 ctrl_area->instrs.INVLPG = 1;
734 ctrl_area->instrs.INVLPGA = 1;
736 guest_state->g_pat = 0x7040600070406ULL;
738 guest_state->cr0 |= 0x80000000;
739 } else if (vm_info.page_mode == NESTED_PAGING) {
740 // Flush the TLB on entries/exits
741 //ctrl_area->TLB_CONTROL = 1;
743 // Enable Nested Paging
744 //ctrl_area->NP_ENABLE = 1;
746 //PrintDebug("NP_Enable at 0x%x\n", &(ctrl_area->NP_ENABLE));
748 // Set the Nested Page Table pointer
749 // ctrl_area->N_CR3 = ((addr_t)vm_info.page_tables);
750 // ctrl_area->N_CR3 = (addr_t)(vm_info.page_tables);
752 // ctrl_area->N_CR3 = Get_CR3();
753 // guest_state->cr3 |= (Get_CR3() & 0xfffff000);
755 // guest_state->g_pat = 0x7040600070406ULL;
770 void Init_VMCB_pe(vmcb_t *vmcb, struct guest_info vm_info) {
771 vmcb_ctrl_t * ctrl_area = GET_VMCB_CTRL_AREA(vmcb);
772 vmcb_saved_state_t * guest_state = GET_VMCB_SAVE_STATE_AREA(vmcb);
776 guest_state->rsp = vm_info.vm_regs.rsp;
777 guest_state->rip = vm_info.rip;
780 /* I pretty much just gutted this from TVMM */
781 /* Note: That means its probably wrong */
783 // set the segment registers to mirror ours
784 guest_state->cs.selector = 1<<3;
785 guest_state->cs.attrib.fields.type = 0xa; // Code segment+read
786 guest_state->cs.attrib.fields.S = 1;
787 guest_state->cs.attrib.fields.P = 1;
788 guest_state->cs.attrib.fields.db = 1;
789 guest_state->cs.attrib.fields.G = 1;
790 guest_state->cs.limit = 0xfffff;
791 guest_state->cs.base = 0;
793 struct vmcb_selector *segregs [] = {&(guest_state->ss), &(guest_state->ds), &(guest_state->es), &(guest_state->fs), &(guest_state->gs), NULL};
794 for ( i = 0; segregs[i] != NULL; i++) {
795 struct vmcb_selector * seg = segregs[i];
797 seg->selector = 2<<3;
798 seg->attrib.fields.type = 0x2; // Data Segment+read/write
799 seg->attrib.fields.S = 1;
800 seg->attrib.fields.P = 1;
801 seg->attrib.fields.db = 1;
802 seg->attrib.fields.G = 1;
803 seg->limit = 0xfffff;
809 /* JRL THIS HAS TO GO */
811 // guest_state->tr.selector = GetTR_Selector();
812 guest_state->tr.attrib.fields.type = 0x9;
813 guest_state->tr.attrib.fields.P = 1;
814 // guest_state->tr.limit = GetTR_Limit();
815 //guest_state->tr.base = GetTR_Base();// - 0x2000;
823 guest_state->efer |= EFER_MSR_svm_enable;
824 guest_state->rflags = 0x00000002; // The reserved bit is always 1
825 ctrl_area->svm_instrs.VMRUN = 1;
826 guest_state->cr0 = 0x00000001; // PE
827 ctrl_area->guest_ASID = 1;
830 // guest_state->cpl = 0;
836 ctrl_area->cr_writes.cr4 = 1;
838 ctrl_area->exceptions.de = 1;
839 ctrl_area->exceptions.df = 1;
840 ctrl_area->exceptions.pf = 1;
841 ctrl_area->exceptions.ts = 1;
842 ctrl_area->exceptions.ss = 1;
843 ctrl_area->exceptions.ac = 1;
844 ctrl_area->exceptions.mc = 1;
845 ctrl_area->exceptions.gp = 1;
846 ctrl_area->exceptions.ud = 1;
847 ctrl_area->exceptions.np = 1;
848 ctrl_area->exceptions.of = 1;
849 ctrl_area->exceptions.nmi = 1;
853 ctrl_area->instrs.IOIO_PROT = 1;
854 ctrl_area->IOPM_BASE_PA = (uint_t)V3_AllocPages(3);
858 tmp_reg.r_reg = ctrl_area->IOPM_BASE_PA;
859 memset((void*)(tmp_reg.e_reg.low), 0xffffffff, PAGE_SIZE * 2);
862 ctrl_area->instrs.INTR = 1;
869 memset(gdt_buf, 0, 6);
870 memset(idt_buf, 0, 6);
873 uint_t gdt_base, idt_base;
874 ushort_t gdt_limit, idt_limit;
877 gdt_base = *(ulong_t*)((uchar_t*)gdt_buf + 2) & 0xffffffff;
878 gdt_limit = *(ushort_t*)(gdt_buf) & 0xffff;
879 PrintDebug("GDT: base: %x, limit: %x\n", gdt_base, gdt_limit);
882 idt_base = *(ulong_t*)(idt_buf + 2) & 0xffffffff;
883 idt_limit = *(ushort_t*)(idt_buf) & 0xffff;
884 PrintDebug("IDT: base: %x, limit: %x\n",idt_base, idt_limit);
887 // gdt_base -= 0x2000;
888 //idt_base -= 0x2000;
890 guest_state->gdtr.base = gdt_base;
891 guest_state->gdtr.limit = gdt_limit;
892 guest_state->idtr.base = idt_base;
893 guest_state->idtr.limit = idt_limit;
899 // also determine if CPU supports nested paging
901 if (vm_info.page_tables) {
903 // Flush the TLB on entries/exits
904 ctrl_area->TLB_CONTROL = 1;
906 // Enable Nested Paging
907 ctrl_area->NP_ENABLE = 1;
909 PrintDebug("NP_Enable at 0x%x\n", &(ctrl_area->NP_ENABLE));
911 // Set the Nested Page Table pointer
912 ctrl_area->N_CR3 |= ((addr_t)vm_info.page_tables & 0xfffff000);
915 // ctrl_area->N_CR3 = Get_CR3();
916 // guest_state->cr3 |= (Get_CR3() & 0xfffff000);
918 guest_state->g_pat = 0x7040600070406ULL;
920 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));
921 PrintDebug("Set Guest CR3: lo: 0x%x hi: 0x%x\n", (uint_t)*(&(guest_state->cr3)), (uint_t)*((unsigned char *)&(guest_state->cr3) + 4));
923 // guest_state->cr0 |= 0x80000000;