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 #include <palacios/vmm_ctrl_regs.h>
44 #include <palacios/vmm_config.h>
45 #include <palacios/svm_io.h>
48 extern void v3_stgi();
49 extern void v3_clgi();
50 //extern int v3_svm_launch(vmcb_t * vmcb, struct v3_gprs * vm_regs, uint64_t * fs, uint64_t * gs);
51 extern int v3_svm_launch(vmcb_t * vmcb, struct v3_gprs * vm_regs);
54 static vmcb_t * Allocate_VMCB() {
55 vmcb_t * vmcb_page = (vmcb_t *)V3_VAddr(V3_AllocPages(1));
57 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 guest_state->efer |= EFER_MSR_svm_enable;
79 guest_state->rflags = 0x00000002; // The reserved bit is always 1
80 ctrl_area->svm_instrs.VMRUN = 1;
81 ctrl_area->svm_instrs.VMMCALL = 1;
82 ctrl_area->svm_instrs.VMLOAD = 1;
83 ctrl_area->svm_instrs.VMSAVE = 1;
84 ctrl_area->svm_instrs.STGI = 1;
85 ctrl_area->svm_instrs.CLGI = 1;
86 ctrl_area->svm_instrs.SKINIT = 1;
87 ctrl_area->svm_instrs.RDTSCP = 1;
88 ctrl_area->svm_instrs.ICEBP = 1;
89 ctrl_area->svm_instrs.WBINVD = 1;
90 ctrl_area->svm_instrs.MONITOR = 1;
91 ctrl_area->svm_instrs.MWAIT_always = 1;
92 ctrl_area->svm_instrs.MWAIT_if_armed = 1;
93 ctrl_area->instrs.INVLPGA = 1;
96 ctrl_area->instrs.HLT = 1;
97 // guest_state->cr0 = 0x00000001; // PE
100 ctrl_area->exceptions.de = 1;
101 ctrl_area->exceptions.df = 1;
103 ctrl_area->exceptions.ts = 1;
104 ctrl_area->exceptions.ss = 1;
105 ctrl_area->exceptions.ac = 1;
106 ctrl_area->exceptions.mc = 1;
107 ctrl_area->exceptions.gp = 1;
108 ctrl_area->exceptions.ud = 1;
109 ctrl_area->exceptions.np = 1;
110 ctrl_area->exceptions.of = 1;
112 ctrl_area->exceptions.nmi = 1;
116 ctrl_area->instrs.NMI = 1;
117 ctrl_area->instrs.SMI = 1;
118 ctrl_area->instrs.INIT = 1;
119 ctrl_area->instrs.PAUSE = 1;
120 ctrl_area->instrs.shutdown_evts = 1;
122 vm_info->vm_regs.rdx = 0x00000f00;
124 guest_state->cr0 = 0x60000010;
127 guest_state->cs.selector = 0xf000;
128 guest_state->cs.limit = 0xffff;
129 guest_state->cs.base = 0x0000000f0000LL;
130 guest_state->cs.attrib.raw = 0xf3;
133 /* DEBUG FOR RETURN CODE */
134 ctrl_area->exit_code = 1;
137 struct vmcb_selector *segregs [] = {&(guest_state->ss), &(guest_state->ds),
138 &(guest_state->es), &(guest_state->fs),
139 &(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;
168 v3_init_svm_io_map(vm_info);
169 ctrl_area->IOPM_BASE_PA = (addr_t)V3_PAddr(vm_info->io_map.arch_data);
170 ctrl_area->instrs.IOIO_PROT = 1;
174 v3_init_svm_msr_map(vm_info);
175 ctrl_area->MSRPM_BASE_PA = (addr_t)V3_PAddr(vm_info->msr_map.arch_data);
176 ctrl_area->instrs.MSR_PROT = 1;
180 PrintDebug("Exiting on interrupts\n");
181 ctrl_area->guest_ctrl.V_INTR_MASKING = 1;
182 ctrl_area->instrs.INTR = 1;
185 if (vm_info->shdw_pg_mode == SHADOW_PAGING) {
186 PrintDebug("Creating initial shadow page table\n");
188 /* JRL: This is a performance killer, and a simplistic solution */
189 /* We need to fix this */
190 ctrl_area->TLB_CONTROL = 1;
191 ctrl_area->guest_ASID = 1;
194 if (v3_init_passthrough_pts(vm_info) == -1) {
195 PrintError("Could not initialize passthrough page tables\n");
200 vm_info->shdw_pg_state.guest_cr0 = 0x0000000000000010LL;
201 PrintDebug("Created\n");
203 guest_state->cr3 = vm_info->direct_map_pt;
205 ctrl_area->cr_reads.cr0 = 1;
206 ctrl_area->cr_writes.cr0 = 1;
207 //ctrl_area->cr_reads.cr4 = 1;
208 ctrl_area->cr_writes.cr4 = 1;
209 ctrl_area->cr_reads.cr3 = 1;
210 ctrl_area->cr_writes.cr3 = 1;
212 vm_info->guest_efer.value = 0x0LL;
214 v3_hook_msr(vm_info, EFER_MSR,
215 &v3_handle_efer_read,
216 &v3_handle_efer_write,
219 ctrl_area->instrs.INVLPG = 1;
221 ctrl_area->exceptions.pf = 1;
223 guest_state->g_pat = 0x7040600070406ULL;
225 guest_state->cr0 |= 0x80000000;
227 } else if (vm_info->shdw_pg_mode == NESTED_PAGING) {
228 // Flush the TLB on entries/exits
229 ctrl_area->TLB_CONTROL = 1;
230 ctrl_area->guest_ASID = 1;
232 // Enable Nested Paging
233 ctrl_area->NP_ENABLE = 1;
235 PrintDebug("NP_Enable at 0x%p\n", (void *)&(ctrl_area->NP_ENABLE));
237 // Set the Nested Page Table pointer
238 if (v3_init_passthrough_pts(vm_info) == -1) {
239 PrintError("Could not initialize Nested page tables\n");
243 ctrl_area->N_CR3 = vm_info->direct_map_pt;
245 guest_state->g_pat = 0x7040600070406ULL;
250 /* Safety locations for fs/gs */
256 static int init_svm_guest(struct guest_info *info, struct v3_vm_config * config_ptr) {
257 v3_config_guest(info, config_ptr);
259 PrintDebug("Allocating VMCB\n");
260 info->vmm_data = (void*)Allocate_VMCB();
262 Init_VMCB_BIOS((vmcb_t*)(info->vmm_data), info);
264 v3_config_devices(info, config_ptr);
266 PrintDebug("Initializing VMCB (addr=%p)\n", (void *)info->vmm_data);
269 info->run_state = VM_STOPPED;
273 info->vm_regs.rdi = 0;
274 info->vm_regs.rsi = 0;
275 info->vm_regs.rbp = 0;
276 info->vm_regs.rsp = 0;
277 info->vm_regs.rbx = 0;
278 info->vm_regs.rdx = 0;
279 info->vm_regs.rcx = 0;
280 info->vm_regs.rax = 0;
287 // can we start a kernel thread here...
288 static int start_svm_guest(struct guest_info *info) {
289 vmcb_saved_state_t * guest_state = GET_VMCB_SAVE_STATE_AREA((vmcb_t*)(info->vmm_data));
290 // vmcb_ctrl_t * guest_ctrl = GET_VMCB_CTRL_AREA((vmcb_t*)(info->vmm_data));
291 uint_t num_exits = 0;
295 PrintDebug("Launching SVM VM (vmcb=%p)\n", (void *)info->vmm_data);
296 //PrintDebugVMCB((vmcb_t*)(info->vmm_data));
298 info->run_state = VM_RUNNING;
305 #define MSR_STAR 0xc0000081
306 #define MSR_LSTAR 0xc0000082
307 #define MSR_CSTAR 0xc0000083
308 #define MSR_SF_MASK 0xc0000084
309 #define MSR_GS_BASE 0xc0000101
310 #define MSR_KERNGS_BASE 0xc0000102
313 struct v3_msr host_cstar;
314 struct v3_msr host_star;
315 struct v3_msr host_lstar;
316 struct v3_msr host_syscall_mask;
317 struct v3_msr host_gs_base;
318 struct v3_msr host_kerngs_base;
320 /* v3_enable_ints(); */
325 PrintDebug("SVM Entry to CS=%p rip=%p...\n",
326 (void *)(addr_t)info->segments.cs.base,
327 (void *)(addr_t)info->rip);
331 v3_get_msr(MSR_STAR, &(host_star.hi), &(host_star.lo));
332 v3_get_msr(MSR_LSTAR, &(host_lstar.hi), &(host_lstar.lo));
333 v3_get_msr(MSR_CSTAR, &(host_cstar.hi), &(host_cstar.lo));
334 v3_get_msr(MSR_SF_MASK, &(host_syscall_mask.hi), &(host_syscall_mask.lo));
335 v3_get_msr(MSR_GS_BASE, &(host_gs_base.hi), &(host_gs_base.lo));
336 v3_get_msr(MSR_KERNGS_BASE, &(host_kerngs_base.hi), &(host_kerngs_base.lo));
339 rdtscll(info->time_state.cached_host_tsc);
340 // guest_ctrl->TSC_OFFSET = info->time_state.guest_tsc - info->time_state.cached_host_tsc;
342 //v3_svm_launch((vmcb_t*)V3_PAddr(info->vmm_data), &(info->vm_regs), &(info->fs), &(info->gs));
343 v3_svm_launch((vmcb_t*)V3_PAddr(info->vmm_data), &(info->vm_regs));
347 v3_set_msr(MSR_STAR, host_star.hi, host_star.lo);
348 v3_set_msr(MSR_LSTAR, host_lstar.hi, host_lstar.lo);
349 v3_set_msr(MSR_CSTAR, host_cstar.hi, host_cstar.lo);
350 v3_set_msr(MSR_SF_MASK, host_syscall_mask.hi, host_syscall_mask.lo);
351 v3_set_msr(MSR_GS_BASE, host_gs_base.hi, host_gs_base.lo);
352 v3_set_msr(MSR_KERNGS_BASE, host_kerngs_base.hi, host_kerngs_base.lo);
354 //PrintDebug("SVM Returned\n");
358 v3_update_time(info, tmp_tsc - info->time_state.cached_host_tsc);
361 //PrintDebug("Turning on global interrupts\n");
365 if ((num_exits % 5000) == 0) {
366 PrintDebug("SVM Exit number %d\n", num_exits);
368 if (info->enable_profiler) {
369 v3_print_profile(info);
375 if (v3_handle_svm_exit(info) != 0) {
376 vmcb_ctrl_t * guest_ctrl = GET_VMCB_CTRL_AREA((vmcb_t*)(info->vmm_data));
378 addr_t linear_addr = 0;
380 info->run_state = VM_ERROR;
382 PrintDebug("SVM ERROR!!\n");
384 PrintDebug("RIP: %p\n", (void *)(addr_t)(guest_state->rip));
387 linear_addr = get_addr_linear(info, guest_state->rip, &(info->segments.cs));
390 PrintDebug("RIP Linear: %p\n", (void *)linear_addr);
391 v3_print_segments(info);
392 v3_print_ctrl_regs(info);
393 if (info->shdw_pg_mode == SHADOW_PAGING) {
394 PrintDebug("Shadow Paging Guest Registers:\n");
395 PrintDebug("\tGuest CR0=%p\n", (void *)(addr_t)(info->shdw_pg_state.guest_cr0));
396 PrintDebug("\tGuest CR3=%p\n", (void *)(addr_t)(info->shdw_pg_state.guest_cr3));
402 PrintDebug("SVM Exit Code: %p\n", (void *)(addr_t)guest_ctrl->exit_code);
404 PrintDebug("exit_info1 low = 0x%.8x\n", *(uint_t*)&(guest_ctrl->exit_info1));
405 PrintDebug("exit_info1 high = 0x%.8x\n", *(uint_t *)(((uchar_t *)&(guest_ctrl->exit_info1)) + 4));
407 PrintDebug("exit_info2 low = 0x%.8x\n", *(uint_t*)&(guest_ctrl->exit_info2));
408 PrintDebug("exit_info2 high = 0x%.8x\n", *(uint_t *)(((uchar_t *)&(guest_ctrl->exit_info2)) + 4));
410 if (info->mem_mode == PHYSICAL_MEM) {
411 guest_pa_to_host_va(info, linear_addr, &host_addr);
412 } else if (info->mem_mode == VIRTUAL_MEM) {
413 guest_va_to_host_va(info, linear_addr, &host_addr);
417 PrintDebug("Host Address of rip = 0x%p\n", (void *)host_addr);
419 PrintDebug("Instr (15 bytes) at %p:\n", (void *)host_addr);
420 PrintTraceMemDump((uchar_t *)host_addr, 15);
432 /* Checks machine SVM capability */
433 /* Implemented from: AMD Arch Manual 3, sect 15.4 */
434 int v3_is_svm_capable() {
436 uint_t vm_cr_low = 0, vm_cr_high = 0;
437 addr_t eax = 0, ebx = 0, ecx = 0, edx = 0;
439 v3_cpuid(CPUID_FEATURE_IDS, &eax, &ebx, &ecx, &edx);
441 PrintDebug("CPUID_FEATURE_IDS_ecx=%p\n", (void *)ecx);
443 if ((ecx & CPUID_FEATURE_IDS_ecx_svm_avail) == 0) {
444 PrintDebug("SVM Not Available\n");
447 v3_get_msr(SVM_VM_CR_MSR, &vm_cr_high, &vm_cr_low);
449 PrintDebug("SVM_VM_CR_MSR = 0x%x 0x%x\n", vm_cr_high, vm_cr_low);
451 if ((vm_cr_low & SVM_VM_CR_MSR_svmdis) == 1) {
452 PrintDebug("SVM is available but is disabled.\n");
454 v3_cpuid(CPUID_SVM_REV_AND_FEATURE_IDS, &eax, &ebx, &ecx, &edx);
456 PrintDebug("CPUID_FEATURE_IDS_edx=%p\n", (void *)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");
466 PrintDebug("SVM is available and enabled.\n");
468 v3_cpuid(CPUID_SVM_REV_AND_FEATURE_IDS, &eax, &ebx, &ecx, &edx);
469 PrintDebug("CPUID_FEATURE_IDS_eax=%p\n", (void *)eax);
470 PrintDebug("CPUID_FEATURE_IDS_ebx=%p\n", (void *)ebx);
471 PrintDebug("CPUID_FEATURE_IDS_ecx=%p\n", (void *)ecx);
472 PrintDebug("CPUID_FEATURE_IDS_edx=%p\n", (void *)edx);
475 if ((edx & CPUID_SVM_REV_AND_FEATURE_IDS_edx_np) == 0) {
476 PrintDebug("SVM Nested Paging not supported\n");
478 PrintDebug("SVM Nested Paging supported\n");
486 static int has_svm_nested_paging() {
487 addr_t eax = 0, ebx = 0, ecx = 0, edx = 0;
489 v3_cpuid(CPUID_SVM_REV_AND_FEATURE_IDS, &eax, &ebx, &ecx, &edx);
491 //PrintDebug("CPUID_FEATURE_IDS_edx=0x%x\n", edx);
493 if ((edx & CPUID_SVM_REV_AND_FEATURE_IDS_edx_np) == 0) {
494 PrintDebug("SVM Nested Paging not supported\n");
497 PrintDebug("SVM Nested Paging supported\n");
504 void v3_init_SVM(struct v3_ctrl_ops * vmm_ops) {
507 extern v3_cpu_arch_t v3_cpu_type;
509 // Enable SVM on the CPU
510 v3_get_msr(EFER_MSR, &(msr.e_reg.high), &(msr.e_reg.low));
511 msr.e_reg.low |= EFER_MSR_svm_enable;
512 v3_set_msr(EFER_MSR, 0, msr.e_reg.low);
514 PrintDebug("SVM Enabled\n");
517 // Setup the host state save area
518 host_state = V3_AllocPages(4);
522 // msr.e_reg.high = 0;
523 //msr.e_reg.low = (uint_t)host_state;
524 msr.r_reg = (addr_t)host_state;
526 PrintDebug("Host State being saved at %p\n", (void *)(addr_t)host_state);
527 v3_set_msr(SVM_VM_HSAVE_PA_MSR, msr.e_reg.high, msr.e_reg.low);
529 if (has_svm_nested_paging() == 1) {
530 v3_cpu_type = V3_SVM_REV3_CPU;
532 v3_cpu_type = V3_SVM_CPU;
535 // Setup the SVM specific vmm operations
536 vmm_ops->init_guest = &init_svm_guest;
537 vmm_ops->start_guest = &start_svm_guest;
538 vmm_ops->has_nested_paging = &has_svm_nested_paging;
594 /*static void Init_VMCB(vmcb_t * vmcb, struct guest_info vm_info) {
595 vmcb_ctrl_t * ctrl_area = GET_VMCB_CTRL_AREA(vmcb);
596 vmcb_saved_state_t * guest_state = GET_VMCB_SAVE_STATE_AREA(vmcb);
600 guest_state->rsp = vm_info.vm_regs.rsp;
601 guest_state->rip = vm_info.rip;
604 //ctrl_area->instrs.instrs.CR0 = 1;
605 ctrl_area->cr_reads.cr0 = 1;
606 ctrl_area->cr_writes.cr0 = 1;
608 guest_state->efer |= EFER_MSR_svm_enable;
609 guest_state->rflags = 0x00000002; // The reserved bit is always 1
610 ctrl_area->svm_instrs.VMRUN = 1;
611 // guest_state->cr0 = 0x00000001; // PE
612 ctrl_area->guest_ASID = 1;
615 ctrl_area->exceptions.de = 1;
616 ctrl_area->exceptions.df = 1;
617 ctrl_area->exceptions.pf = 1;
618 ctrl_area->exceptions.ts = 1;
619 ctrl_area->exceptions.ss = 1;
620 ctrl_area->exceptions.ac = 1;
621 ctrl_area->exceptions.mc = 1;
622 ctrl_area->exceptions.gp = 1;
623 ctrl_area->exceptions.ud = 1;
624 ctrl_area->exceptions.np = 1;
625 ctrl_area->exceptions.of = 1;
626 ctrl_area->exceptions.nmi = 1;
628 guest_state->cs.selector = 0x0000;
629 guest_state->cs.limit=~0u;
630 guest_state->cs.base = guest_state->cs.selector<<4;
631 guest_state->cs.attrib.raw = 0xf3;
634 struct vmcb_selector *segregs [] = {&(guest_state->ss), &(guest_state->ds), &(guest_state->es), &(guest_state->fs), &(guest_state->gs), NULL};
635 for ( i = 0; segregs[i] != NULL; i++) {
636 struct vmcb_selector * seg = segregs[i];
638 seg->selector = 0x0000;
639 seg->base = seg->selector << 4;
640 seg->attrib.raw = 0xf3;
644 if (vm_info.io_map.num_ports > 0) {
645 struct vmm_io_hook * iter;
646 addr_t io_port_bitmap;
648 io_port_bitmap = (addr_t)V3_AllocPages(3);
649 memset((uchar_t*)io_port_bitmap, 0, PAGE_SIZE * 3);
651 ctrl_area->IOPM_BASE_PA = io_port_bitmap;
653 //PrintDebug("Setting up IO Map at 0x%x\n", io_port_bitmap);
655 FOREACH_IO_HOOK(vm_info.io_map, iter) {
656 ushort_t port = iter->port;
657 uchar_t * bitmap = (uchar_t *)io_port_bitmap;
659 bitmap += (port / 8);
660 PrintDebug("Setting Bit in block %x\n", bitmap);
661 *bitmap |= 1 << (port % 8);
665 //PrintDebugMemDump((uchar_t*)io_port_bitmap, PAGE_SIZE *2);
667 ctrl_area->instrs.IOIO_PROT = 1;
670 ctrl_area->instrs.INTR = 1;
674 if (vm_info.page_mode == SHADOW_PAGING) {
675 PrintDebug("Creating initial shadow page table\n");
676 vm_info.shdw_pg_state.shadow_cr3 |= ((addr_t)create_passthrough_pts_32(&vm_info) & ~0xfff);
677 PrintDebug("Created\n");
679 guest_state->cr3 = vm_info.shdw_pg_state.shadow_cr3;
681 ctrl_area->cr_reads.cr3 = 1;
682 ctrl_area->cr_writes.cr3 = 1;
685 ctrl_area->instrs.INVLPG = 1;
686 ctrl_area->instrs.INVLPGA = 1;
688 guest_state->g_pat = 0x7040600070406ULL;
690 guest_state->cr0 |= 0x80000000;
691 } else if (vm_info.page_mode == NESTED_PAGING) {
692 // Flush the TLB on entries/exits
693 //ctrl_area->TLB_CONTROL = 1;
695 // Enable Nested Paging
696 //ctrl_area->NP_ENABLE = 1;
698 //PrintDebug("NP_Enable at 0x%x\n", &(ctrl_area->NP_ENABLE));
700 // Set the Nested Page Table pointer
701 // ctrl_area->N_CR3 = ((addr_t)vm_info.page_tables);
702 // ctrl_area->N_CR3 = (addr_t)(vm_info.page_tables);
704 // ctrl_area->N_CR3 = Get_CR3();
705 // guest_state->cr3 |= (Get_CR3() & 0xfffff000);
707 // guest_state->g_pat = 0x7040600070406ULL;
722 void Init_VMCB_pe(vmcb_t *vmcb, struct guest_info vm_info) {
723 vmcb_ctrl_t * ctrl_area = GET_VMCB_CTRL_AREA(vmcb);
724 vmcb_saved_state_t * guest_state = GET_VMCB_SAVE_STATE_AREA(vmcb);
728 guest_state->rsp = vm_info.vm_regs.rsp;
729 guest_state->rip = vm_info.rip;
732 /* I pretty much just gutted this from TVMM */
733 /* Note: That means its probably wrong */
735 // set the segment registers to mirror ours
736 guest_state->cs.selector = 1<<3;
737 guest_state->cs.attrib.fields.type = 0xa; // Code segment+read
738 guest_state->cs.attrib.fields.S = 1;
739 guest_state->cs.attrib.fields.P = 1;
740 guest_state->cs.attrib.fields.db = 1;
741 guest_state->cs.attrib.fields.G = 1;
742 guest_state->cs.limit = 0xfffff;
743 guest_state->cs.base = 0;
745 struct vmcb_selector *segregs [] = {&(guest_state->ss), &(guest_state->ds), &(guest_state->es), &(guest_state->fs), &(guest_state->gs), NULL};
746 for ( i = 0; segregs[i] != NULL; i++) {
747 struct vmcb_selector * seg = segregs[i];
749 seg->selector = 2<<3;
750 seg->attrib.fields.type = 0x2; // Data Segment+read/write
751 seg->attrib.fields.S = 1;
752 seg->attrib.fields.P = 1;
753 seg->attrib.fields.db = 1;
754 seg->attrib.fields.G = 1;
755 seg->limit = 0xfffff;
761 /* JRL THIS HAS TO GO */
763 // guest_state->tr.selector = GetTR_Selector();
764 guest_state->tr.attrib.fields.type = 0x9;
765 guest_state->tr.attrib.fields.P = 1;
766 // guest_state->tr.limit = GetTR_Limit();
767 //guest_state->tr.base = GetTR_Base();// - 0x2000;
775 guest_state->efer |= EFER_MSR_svm_enable;
776 guest_state->rflags = 0x00000002; // The reserved bit is always 1
777 ctrl_area->svm_instrs.VMRUN = 1;
778 guest_state->cr0 = 0x00000001; // PE
779 ctrl_area->guest_ASID = 1;
782 // guest_state->cpl = 0;
788 ctrl_area->cr_writes.cr4 = 1;
790 ctrl_area->exceptions.de = 1;
791 ctrl_area->exceptions.df = 1;
792 ctrl_area->exceptions.pf = 1;
793 ctrl_area->exceptions.ts = 1;
794 ctrl_area->exceptions.ss = 1;
795 ctrl_area->exceptions.ac = 1;
796 ctrl_area->exceptions.mc = 1;
797 ctrl_area->exceptions.gp = 1;
798 ctrl_area->exceptions.ud = 1;
799 ctrl_area->exceptions.np = 1;
800 ctrl_area->exceptions.of = 1;
801 ctrl_area->exceptions.nmi = 1;
805 ctrl_area->instrs.IOIO_PROT = 1;
806 ctrl_area->IOPM_BASE_PA = (uint_t)V3_AllocPages(3);
810 tmp_reg.r_reg = ctrl_area->IOPM_BASE_PA;
811 memset((void*)(tmp_reg.e_reg.low), 0xffffffff, PAGE_SIZE * 2);
814 ctrl_area->instrs.INTR = 1;
821 memset(gdt_buf, 0, 6);
822 memset(idt_buf, 0, 6);
825 uint_t gdt_base, idt_base;
826 ushort_t gdt_limit, idt_limit;
829 gdt_base = *(ulong_t*)((uchar_t*)gdt_buf + 2) & 0xffffffff;
830 gdt_limit = *(ushort_t*)(gdt_buf) & 0xffff;
831 PrintDebug("GDT: base: %x, limit: %x\n", gdt_base, gdt_limit);
834 idt_base = *(ulong_t*)(idt_buf + 2) & 0xffffffff;
835 idt_limit = *(ushort_t*)(idt_buf) & 0xffff;
836 PrintDebug("IDT: base: %x, limit: %x\n",idt_base, idt_limit);
839 // gdt_base -= 0x2000;
840 //idt_base -= 0x2000;
842 guest_state->gdtr.base = gdt_base;
843 guest_state->gdtr.limit = gdt_limit;
844 guest_state->idtr.base = idt_base;
845 guest_state->idtr.limit = idt_limit;
851 // also determine if CPU supports nested paging
853 if (vm_info.page_tables) {
855 // Flush the TLB on entries/exits
856 ctrl_area->TLB_CONTROL = 1;
858 // Enable Nested Paging
859 ctrl_area->NP_ENABLE = 1;
861 PrintDebug("NP_Enable at 0x%x\n", &(ctrl_area->NP_ENABLE));
863 // Set the Nested Page Table pointer
864 ctrl_area->N_CR3 |= ((addr_t)vm_info.page_tables & 0xfffff000);
867 // ctrl_area->N_CR3 = Get_CR3();
868 // guest_state->cr3 |= (Get_CR3() & 0xfffff000);
870 guest_state->g_pat = 0x7040600070406ULL;
872 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));
873 PrintDebug("Set Guest CR3: lo: 0x%x hi: 0x%x\n", (uint_t)*(&(guest_state->cr3)), (uint_t)*((unsigned char *)&(guest_state->cr3) + 4));
875 // guest_state->cr0 |= 0x80000000;