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".
23 #include <palacios/vm_guest.h>
24 #include <palacios/vmm_ctrl_regs.h>
25 #include <palacios/vmm.h>
26 #include <palacios/vmm_decoder.h>
27 #include <palacios/vmcb.h>
30 v3_cpu_mode_t v3_get_vm_cpu_mode(struct guest_info * info) {
32 struct efer_64 * efer;
33 struct cr4_32 * cr4 = (struct cr4_32 *)&(info->ctrl_regs.cr4);
34 struct v3_segment * cs = &(info->segments.cs);
35 vmcb_saved_state_t * guest_state = GET_VMCB_SAVE_STATE_AREA((vmcb_t*)(info->vmm_data));
37 if (info->shdw_pg_mode == SHADOW_PAGING) {
38 cr0 = (struct cr0_32 *)&(info->shdw_pg_state.guest_cr0);
39 efer = (struct efer_64 *)&(info->shdw_pg_state.guest_efer);
40 } else if (info->shdw_pg_mode == NESTED_PAGING) {
41 cr0 = (struct cr0_32 *)&(info->ctrl_regs.cr0);
42 efer = (struct efer_64 *)&(guest_state->efer);
44 PrintError("Invalid Paging Mode...\n");
51 } else if ((cr4->pae == 0) && (efer->lme == 0)) {
53 } else if (efer->lme == 0) {
55 } else if ((efer->lme == 1) && (cs->long_mode == 1)) {
58 // What about LONG_16_COMPAT???
59 return LONG_32_COMPAT;
63 // Get address width in bytes
64 uint_t v3_get_addr_width(struct guest_info * info) {
66 struct cr4_32 * cr4 = (struct cr4_32 *)&(info->ctrl_regs.cr4);
67 struct efer_64 * efer;
68 struct v3_segment * cs = &(info->segments.cs);
69 vmcb_saved_state_t * guest_state = GET_VMCB_SAVE_STATE_AREA((vmcb_t*)(info->vmm_data));
71 if (info->shdw_pg_mode == SHADOW_PAGING) {
72 cr0 = (struct cr0_32 *)&(info->shdw_pg_state.guest_cr0);
73 efer = (struct efer_64 *)&(info->shdw_pg_state.guest_efer);
74 } else if (info->shdw_pg_mode == NESTED_PAGING) {
75 cr0 = (struct cr0_32 *)&(info->ctrl_regs.cr0);
76 efer = (struct efer_64 *)&(guest_state->efer);
78 PrintError("Invalid Paging Mode...\n");
85 } else if ((cr4->pae == 0) && (efer->lme == 0)) {
87 } else if (efer->lme == 0) {
89 } else if ((efer->lme == 1) && (cs->long_mode == 1)) {
92 // What about LONG_16_COMPAT???
98 static const uchar_t REAL_STR[] = "Real";
99 static const uchar_t PROTECTED_STR[] = "Protected";
100 static const uchar_t PROTECTED_PAE_STR[] = "Protected+PAE";
101 static const uchar_t LONG_STR[] = "Long";
102 static const uchar_t LONG_32_COMPAT_STR[] = "32bit Compat";
103 static const uchar_t LONG_16_COMPAT_STR[] = "16bit Compat";
105 const uchar_t * v3_cpu_mode_to_str(v3_cpu_mode_t mode) {
110 return PROTECTED_STR;
112 return PROTECTED_PAE_STR;
116 return LONG_32_COMPAT_STR;
118 return LONG_16_COMPAT_STR;
124 v3_mem_mode_t v3_get_vm_mem_mode(struct guest_info * info) {
127 if (info->shdw_pg_mode == SHADOW_PAGING) {
128 cr0 = (struct cr0_32 *)&(info->shdw_pg_state.guest_cr0);
129 } else if (info->shdw_pg_mode == NESTED_PAGING) {
130 cr0 = (struct cr0_32 *)&(info->ctrl_regs.cr0);
132 PrintError("Invalid Paging Mode...\n");
144 static const uchar_t PHYS_MEM_STR[] = "Physical Memory";
145 static const uchar_t VIRT_MEM_STR[] = "Virtual Memory";
147 const uchar_t * v3_mem_mode_to_str(v3_mem_mode_t mode) {
159 void v3_print_segments(struct guest_info * info) {
160 struct v3_segments * segs = &(info->segments);
162 struct v3_segment * seg_ptr;
164 seg_ptr=(struct v3_segment *)segs;
166 char *seg_names[] = {"CS", "DS" , "ES", "FS", "GS", "SS" , "LDTR", "GDTR", "IDTR", "TR", NULL};
167 PrintDebug("Segments\n");
169 for (i = 0; seg_names[i] != NULL; i++) {
171 PrintDebug("\t%s: Sel=%x, base=%p, limit=%x (long_mode=%d, db=%d)\n", seg_names[i], seg_ptr[i].selector,
172 (void *)(addr_t)seg_ptr[i].base, seg_ptr[i].limit,
173 seg_ptr[i].long_mode, seg_ptr[i].db);
180 void v3_print_ctrl_regs(struct guest_info * info) {
181 struct v3_ctrl_regs * regs = &(info->ctrl_regs);
184 char * reg_names[] = {"CR0", "CR2", "CR3", "CR4", "CR8", "FLAGS", NULL};
185 vmcb_saved_state_t * guest_state = GET_VMCB_SAVE_STATE_AREA(info->vmm_data);
187 reg_ptr = (v3_reg_t *)regs;
189 PrintDebug("32 bit Ctrl Regs:\n");
191 for (i = 0; reg_names[i] != NULL; i++) {
192 PrintDebug("\t%s=0x%p\n", reg_names[i], (void *)(addr_t)reg_ptr[i]);
195 PrintDebug("\tEFER=0x%p\n", (void*)(addr_t)(guest_state->efer));
200 void v3_print_guest_state(struct guest_info * info) {
201 addr_t linear_addr = 0;
203 PrintDebug("RIP: %p\n", (void *)(addr_t)(info->rip));
204 linear_addr = get_addr_linear(info, info->rip, &(info->segments.cs));
205 PrintDebug("RIP Linear: %p\n", (void *)linear_addr);
207 v3_print_segments(info);
208 v3_print_ctrl_regs(info);
210 if (info->shdw_pg_mode == SHADOW_PAGING) {
211 PrintDebug("Shadow Paging Guest Registers:\n");
212 PrintDebug("\tGuest CR0=%p\n", (void *)(addr_t)(info->shdw_pg_state.guest_cr0));
213 PrintDebug("\tGuest CR3=%p\n", (void *)(addr_t)(info->shdw_pg_state.guest_cr3));
214 PrintDebug("\tGuest EFER=%p\n", (void *)(addr_t)(info->shdw_pg_state.guest_efer.value));
223 void v3_print_GPRs(struct guest_info * info) {
224 struct v3_gprs * regs = &(info->vm_regs);
227 char * reg_names[] = { "RDI", "RSI", "RBP", "RSP", "RBX", "RDX", "RCX", "RAX", NULL};
229 reg_ptr= (v3_reg_t *)regs;
231 PrintDebug("32 bit GPRs:\n");
233 for (i = 0; reg_names[i] != NULL; i++) {
234 PrintDebug("\t%s=0x%p\n", reg_names[i], (void *)(addr_t)reg_ptr[i]);
240 void v3_print_GPRs(struct guest_info * info) {
241 struct v3_gprs * regs = &(info->vm_regs);
244 char * reg_names[] = { "RDI", "RSI", "RBP", "RSP", "RBX", "RDX", "RCX", "RAX", \
245 "R8", "R9", "R10", "R11", "R12", "R13", "R14", "R15", NULL};
247 reg_ptr= (v3_reg_t *)regs;
249 PrintDebug("64 bit GPRs:\n");
251 for (i = 0; reg_names[i] != NULL; i++) {
252 PrintDebug("\t%s=0x%p\n", reg_names[i], (void *)(addr_t)reg_ptr[i]);