X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=blobdiff_plain;f=palacios%2Fsrc%2Fpalacios%2Fsvm.c;h=a95efa4edf5b0d92882f53d5183986b70e67bbae;hb=2b1f4ef19d766727f873476861c64339c8836a40;hp=5b2e0c873c1791f0a1df8698c76fe4c2d6be2c2d;hpb=a109eb919a162bd7de58d62020801bc2e633be50;p=palacios.git

diff --git a/palacios/src/palacios/svm.c b/palacios/src/palacios/svm.c
index 5b2e0c8..a95efa4 100644
--- a/palacios/src/palacios/svm.c
+++ b/palacios/src/palacios/svm.c
@@ -9,10 +9,8 @@
 #include <palacios/vmm_debug.h>
 #include <palacios/vm_guest_mem.h>
 
+#include <palacios/vmm_emulate.h>
 
-/* TEMPORARY BECAUSE SVM IS WEIRD */
-//#include <palacios/tss.h>
-/* ** */
 
 extern struct vmm_os_hooks * os_hooks;
 
@@ -23,10 +21,11 @@ extern void Set_MSR(uint_t MSR, uint_t high_byte, uint_t low_byte);
 extern uint_t launch_svm(vmcb_t * vmcb_addr);
 extern void safe_svm_launch(vmcb_t * vmcb_addr, struct guest_gprs * gprs);
 
+extern void STGI();
+extern void CLGI();
+
 extern uint_t Get_CR3();
 
-extern void GetGDTR(void * gdt);
-extern void GetIDTR(void * idt);
 
 extern void DisableInts();
 
@@ -109,12 +108,13 @@ int init_svm_guest(struct guest_info *info) {
   //  info->page_tables = NULL;
   //info->page_tables = generate_guest_page_tables_64(&(info->mem_layout), &(info->mem_list));
   //info->page_tables = generate_guest_page_tables(&(info->mem_layout), &(info->mem_list));
-  //PrintDebugPageTables(info->page_tables);
+  //  PrintDebugPageTables(info->page_tables);
 
 
   PrintDebug("Initializing VMCB (addr=%x)\n", info->vmm_data);
-  Init_VMCB((vmcb_t*)(info->vmm_data), *info);
+  Init_VMCB_BIOS((vmcb_t*)(info->vmm_data), *info);
   
+
   //  info->rip = 0;
 
   info->vm_regs.rdi = 0;
@@ -140,14 +140,44 @@ int start_svm_guest(struct guest_info *info) {
 
   while (1) {
 
-    PrintDebug("SVM Launch Args (vmcb=%x), (info=%x), (vm_regs=%x)\n", info->vmm_data,  &(info->vm_regs));
+    CLGI();
+
+    //PrintDebug("SVM Launch Args (vmcb=%x), (info=%x), (vm_regs=%x)\n", info->vmm_data,  &(info->vm_regs));
     PrintDebug("Launching to RIP: %x\n", info->rip);
     safe_svm_launch((vmcb_t*)(info->vmm_data), &(info->vm_regs));
     //launch_svm((vmcb_t*)(info->vmm_data));
-    PrintDebug("SVM Returned\n");
+    //PrintDebug("SVM Returned\n");
+
+    
+
+    STGI();
 
+     
     if (handle_svm_exit(info) != 0) {
-      // handle exit code....
+      vmcb_saved_state_t * guest_state = GET_VMCB_SAVE_STATE_AREA((vmcb_t*)(info->vmm_data));
+      addr_t host_addr;
+      addr_t linear_addr = 0;
+
+      PrintDebug("SVM ERROR!!\n"); 
+      
+
+      PrintDebug("RIP: %x\n", guest_state->rip);
+
+      if (info->cpu_mode == REAL) {
+	linear_addr = get_addr_linear(info, guest_state->rip, guest_state->cs.selector);
+      } else {
+	linear_addr = get_addr_linear(info, guest_state->rip, guest_state->cs.base);
+      }
+
+      PrintDebug("RIP Linear: %x\n", linear_addr);
+
+      guest_pa_to_host_pa(info, linear_addr, &host_addr);
+
+      PrintDebug("Host Address of rip = 0x%x\n", host_addr);
+
+      PrintDebug("Instr (15 bytes) at %x:\n", host_addr);
+      PrintTraceMemDump((char*)host_addr, 15);
+
       break;
     }
   }
@@ -166,7 +196,8 @@ vmcb_t * Allocate_VMCB() {
 }
 
 
-void Init_VMCB_Real(vmcb_t * vmcb, struct guest_info vm_info) {
+
+void Init_VMCB(vmcb_t * vmcb, struct guest_info vm_info) {
   vmcb_ctrl_t * ctrl_area = GET_VMCB_CTRL_AREA(vmcb);
   vmcb_saved_state_t * guest_state = GET_VMCB_SAVE_STATE_AREA(vmcb);
   uint_t i;
@@ -176,30 +207,34 @@ void Init_VMCB_Real(vmcb_t * vmcb, struct guest_info vm_info) {
   guest_state->rip = vm_info.rip;
 
 
+  //ctrl_area->instrs.instrs.CR0 = 1;
+  ctrl_area->cr_reads.cr0 = 1;
+  ctrl_area->cr_writes.cr0 = 1;
+
   guest_state->efer |= EFER_MSR_svm_enable;
   guest_state->rflags = 0x00000002; // The reserved bit is always 1
-  ctrl_area->svm_instrs.instrs.VMRUN = 1;
+  ctrl_area->svm_instrs.VMRUN = 1;
+  // guest_state->cr0 = 0x00000001;    // PE 
   ctrl_area->guest_ASID = 1;
-  guest_state->cr0 = 0x60000010;
 
 
-  ctrl_area->exceptions.ex_names.de = 1;
-  ctrl_area->exceptions.ex_names.df = 1;
-  ctrl_area->exceptions.ex_names.pf = 1;
-  ctrl_area->exceptions.ex_names.ts = 1;
-  ctrl_area->exceptions.ex_names.ss = 1;
-  ctrl_area->exceptions.ex_names.ac = 1;
-  ctrl_area->exceptions.ex_names.mc = 1;
-  ctrl_area->exceptions.ex_names.gp = 1;
-  ctrl_area->exceptions.ex_names.ud = 1;
-  ctrl_area->exceptions.ex_names.np = 1;
-  ctrl_area->exceptions.ex_names.of = 1;
-  ctrl_area->exceptions.ex_names.nmi = 1;
+  ctrl_area->exceptions.de = 1;
+  ctrl_area->exceptions.df = 1;
+  ctrl_area->exceptions.pf = 1;
+  ctrl_area->exceptions.ts = 1;
+  ctrl_area->exceptions.ss = 1;
+  ctrl_area->exceptions.ac = 1;
+  ctrl_area->exceptions.mc = 1;
+  ctrl_area->exceptions.gp = 1;
+  ctrl_area->exceptions.ud = 1;
+  ctrl_area->exceptions.np = 1;
+  ctrl_area->exceptions.of = 1;
+  ctrl_area->exceptions.nmi = 1;
 
-  guest_state->cs.selector = 0xf000;
-  guest_state->cs.limit=0xffff;
-  guest_state->cs.base =  0xffff0000;
-  guest_state->cs.attrib.raw = 0x9a;
+  guest_state->cs.selector = 0x0000;
+  guest_state->cs.limit=~0u;
+  guest_state->cs.base = guest_state->cs.selector<<4;
+  guest_state->cs.attrib.raw = 0xf3;
 
   
   struct vmcb_selector *segregs [] = {&(guest_state->ss), &(guest_state->ds), &(guest_state->es), &(guest_state->fs), &(guest_state->gs), NULL};
@@ -207,36 +242,11 @@ void Init_VMCB_Real(vmcb_t * vmcb, struct guest_info vm_info) {
     struct vmcb_selector * seg = segregs[i];
     
     seg->selector = 0x0000;
-    seg->base = 0xffff0000;
-    seg->attrib.raw = 0x9b;
-    seg->limit = 0xffff;
+    seg->base = seg->selector << 4;
+    seg->attrib.raw = 0xf3;
+    seg->limit = ~0u;
   }
   
-  /* Set GPRs */
-  /*
-    EDX == 0xfxx
-    EAX, EBX, ECX, ESI, EDI, EBP, ESP == 0x0
-  */
-
-  guest_state->gdtr.base = 0;
-  guest_state->gdtr.limit = 0xffff;
-  guest_state->gdtr.attrib.raw = 0x0;
-
-  guest_state->idtr.base = 0;
-  guest_state->idtr.limit = 0xffff;
-  guest_state->idtr.attrib.raw = 0x0;
-
-  guest_state->ldtr.base = 0;
-  guest_state->ldtr.limit = 0xffff;
-  guest_state->ldtr.attrib.raw = 0x82;
-
-  guest_state->tr.base = 0;
-  guest_state->tr.limit = 0xffff;
-  guest_state->tr.attrib.raw = 0x83;
-
-
-
-
   if (vm_info.io_map.num_ports > 0) {
     vmm_io_hook_t * iter;
     addr_t io_port_bitmap;
@@ -257,32 +267,32 @@ void Init_VMCB_Real(vmcb_t * vmcb, struct guest_info vm_info) {
       *bitmap |= 1 << (port % 8);
     }
 
-    ctrl_area->instrs.instrs.IOIO_PROT = 1;
+
+    //PrintDebugMemDump((uchar_t*)io_port_bitmap, PAGE_SIZE *2);
+
+    ctrl_area->instrs.IOIO_PROT = 1;
   }
 
-  ctrl_area->instrs.instrs.INTR = 1;
+  ctrl_area->instrs.INTR = 1;
+
 
-  // also determine if CPU supports nested paging
 
   if (vm_info.page_mode == SHADOW_PAGING) {
     PrintDebug("Creating initial shadow page table\n");
-    vm_info.shdw_pg_state.shadow_cr3.e_reg.low |= ((addr_t)create_passthrough_pde32_pts(&vm_info) & ~0xfff);
+    vm_info.shdw_pg_state.shadow_cr3 |= ((addr_t)create_passthrough_pde32_pts(&vm_info) & ~0xfff);
     PrintDebug("Created\n");
 
-    guest_state->cr3 = vm_info.shdw_pg_state.shadow_cr3.r_reg;
+    guest_state->cr3 = vm_info.shdw_pg_state.shadow_cr3;
 
-    ctrl_area->cr_reads.crs.cr3 = 1;
-    ctrl_area->cr_writes.crs.cr3 = 1;
-    ctrl_area->cr_reads.crs.cr0 = 1;
-    ctrl_area->cr_writes.crs.cr0 = 1;
+    ctrl_area->cr_reads.cr3 = 1;
+    ctrl_area->cr_writes.cr3 = 1;
 
-    ctrl_area->instrs.instrs.INVLPG = 1;
-    ctrl_area->instrs.instrs.INVLPGA = 1;
 
-	
+    ctrl_area->instrs.INVLPG = 1;
+    ctrl_area->instrs.INVLPGA = 1;
+
     guest_state->g_pat = 0x7040600070406ULL;
 
-    vm_info.shdw_pg_state.guest_cr0.e_reg.low = guest_state->cr0;
     guest_state->cr0 |= 0x80000000;
   } else if (vm_info.page_mode == NESTED_PAGING) {
     // Flush the TLB on entries/exits
@@ -303,46 +313,53 @@ void Init_VMCB_Real(vmcb_t * vmcb, struct guest_info vm_info) {
     //    guest_state->g_pat = 0x7040600070406ULL;
   }
 
+
+
 }
 
 
-void Init_VMCB(vmcb_t * vmcb, struct guest_info vm_info) {
+
+void Init_VMCB_BIOS(vmcb_t * vmcb, struct guest_info vm_info) {
   vmcb_ctrl_t * ctrl_area = GET_VMCB_CTRL_AREA(vmcb);
   vmcb_saved_state_t * guest_state = GET_VMCB_SAVE_STATE_AREA(vmcb);
   uint_t i;
 
 
   guest_state->rsp = vm_info.vm_regs.rsp;
-  guest_state->rip = vm_info.rip;
-
+  // guest_state->rip = vm_info.rip;
+  guest_state->rip = 0xfff0;
 
   //ctrl_area->instrs.instrs.CR0 = 1;
-  ctrl_area->cr_reads.crs.cr0 = 1;
-  ctrl_area->cr_writes.crs.cr0 = 1;
+  ctrl_area->cr_reads.cr0 = 1;
+  ctrl_area->cr_writes.cr0 = 1;
 
   guest_state->efer |= EFER_MSR_svm_enable;
   guest_state->rflags = 0x00000002; // The reserved bit is always 1
-  ctrl_area->svm_instrs.instrs.VMRUN = 1;
+  ctrl_area->svm_instrs.VMRUN = 1;
+  ctrl_area->instrs.HLT = 1;
   // guest_state->cr0 = 0x00000001;    // PE 
   ctrl_area->guest_ASID = 1;
 
+  ctrl_area->exceptions.de = 1;
+  ctrl_area->exceptions.df = 1;
+  ctrl_area->exceptions.pf = 1;
+  ctrl_area->exceptions.ts = 1;
+  ctrl_area->exceptions.ss = 1;
+  ctrl_area->exceptions.ac = 1;
+  ctrl_area->exceptions.mc = 1;
+  ctrl_area->exceptions.gp = 1;
+  ctrl_area->exceptions.ud = 1;
+  ctrl_area->exceptions.np = 1;
+  ctrl_area->exceptions.of = 1;
+  ctrl_area->exceptions.nmi = 1;
+
+  vm_info.vm_regs.rdx = 0x00000f00;
 
-  ctrl_area->exceptions.ex_names.de = 1;
-  ctrl_area->exceptions.ex_names.df = 1;
-  ctrl_area->exceptions.ex_names.pf = 1;
-  ctrl_area->exceptions.ex_names.ts = 1;
-  ctrl_area->exceptions.ex_names.ss = 1;
-  ctrl_area->exceptions.ex_names.ac = 1;
-  ctrl_area->exceptions.ex_names.mc = 1;
-  ctrl_area->exceptions.ex_names.gp = 1;
-  ctrl_area->exceptions.ex_names.ud = 1;
-  ctrl_area->exceptions.ex_names.np = 1;
-  ctrl_area->exceptions.ex_names.of = 1;
-  ctrl_area->exceptions.ex_names.nmi = 1;
+  guest_state->cr0 = 0x60000010;
 
-  guest_state->cs.selector = 0x0000;
-  guest_state->cs.limit=~0u;
-  guest_state->cs.base = guest_state->cs.selector<<4;
+  guest_state->cs.selector = 0xf000;
+  guest_state->cs.limit=0xffff;
+  guest_state->cs.base = 0x0000000f0000LL;
   guest_state->cs.attrib.raw = 0xf3;
 
   
@@ -351,11 +368,28 @@ void Init_VMCB(vmcb_t * vmcb, struct guest_info vm_info) {
     struct vmcb_selector * seg = segregs[i];
     
     seg->selector = 0x0000;
-    seg->base = seg->selector << 4;
+    //    seg->base = seg->selector << 4;
+    seg->base = 0x00000000;
     seg->attrib.raw = 0xf3;
     seg->limit = ~0u;
   }
   
+  guest_state->gdtr.limit = 0x0000ffff;
+  guest_state->gdtr.base = 0x0000000000000000LL;
+  guest_state->idtr.limit = 0x0000ffff;
+  guest_state->idtr.base = 0x0000000000000000LL;
+
+  guest_state->ldtr.selector = 0x0000;
+  guest_state->ldtr.limit = 0x0000ffff;
+  guest_state->ldtr.base = 0x0000000000000000LL;
+  guest_state->tr.selector = 0x0000;
+  guest_state->tr.limit = 0x0000ffff;
+  guest_state->tr.base = 0x0000000000000000LL;
+
+
+  guest_state->dr6 = 0x00000000ffff0ff0LL;
+  guest_state->dr7 = 0x0000000000000400LL;
+
   if (vm_info.io_map.num_ports > 0) {
     vmm_io_hook_t * iter;
     addr_t io_port_bitmap;
@@ -372,33 +406,38 @@ void Init_VMCB(vmcb_t * vmcb, struct guest_info vm_info) {
       uchar_t * bitmap = (uchar_t *)io_port_bitmap;
 
       bitmap += (port / 8);
-      PrintDebug("Setting Bit in block %x\n", bitmap);
+      PrintDebug("Setting Bit for port 0x%x\n", port);
       *bitmap |= 1 << (port % 8);
     }
 
 
     //PrintDebugMemDump((uchar_t*)io_port_bitmap, PAGE_SIZE *2);
 
-    ctrl_area->instrs.instrs.IOIO_PROT = 1;
+    ctrl_area->instrs.IOIO_PROT = 1;
   }
 
-  ctrl_area->instrs.instrs.INTR = 1;
 
 
+  PrintDebug("Exiting on interrupts\n");
+  ctrl_area->guest_ctrl.V_INTR_MASKING = 1;
+  ctrl_area->instrs.INTR = 1;
+
 
   if (vm_info.page_mode == SHADOW_PAGING) {
     PrintDebug("Creating initial shadow page table\n");
-    vm_info.shdw_pg_state.shadow_cr3.e_reg.low |= ((addr_t)create_passthrough_pde32_pts(&vm_info) & ~0xfff);
+    vm_info.shdw_pg_state.shadow_cr3 |= ((addr_t)create_passthrough_pde32_pts(&vm_info) & ~0xfff);
     PrintDebug("Created\n");
 
-    guest_state->cr3 = vm_info.shdw_pg_state.shadow_cr3.r_reg;
+    guest_state->cr3 = vm_info.shdw_pg_state.shadow_cr3;
 
-    ctrl_area->cr_reads.crs.cr3 = 1;
-    ctrl_area->cr_writes.crs.cr3 = 1;
+    //PrintDebugPageTables((pde32_t*)(vm_info.shdw_pg_state.shadow_cr3.e_reg.low));
 
+    ctrl_area->cr_reads.cr3 = 1;
+    ctrl_area->cr_writes.cr3 = 1;
 
-    ctrl_area->instrs.instrs.INVLPG = 1;
-    ctrl_area->instrs.instrs.INVLPGA = 1;
+
+    ctrl_area->instrs.INVLPG = 1;
+    ctrl_area->instrs.INVLPGA = 1;
 
     guest_state->g_pat = 0x7040600070406ULL;
 
@@ -426,6 +465,8 @@ void Init_VMCB(vmcb_t * vmcb, struct guest_info vm_info) {
 
 }
 
+
+#if 0
 void Init_VMCB_pe(vmcb_t *vmcb, struct guest_info vm_info) {
   vmcb_ctrl_t * ctrl_area = GET_VMCB_CTRL_AREA(vmcb);
   vmcb_saved_state_t * guest_state = GET_VMCB_SAVE_STATE_AREA(vmcb);
@@ -481,7 +522,7 @@ void Init_VMCB_pe(vmcb_t *vmcb, struct guest_info vm_info) {
 
   guest_state->efer |= EFER_MSR_svm_enable;
   guest_state->rflags = 0x00000002; // The reserved bit is always 1
-  ctrl_area->svm_instrs.instrs.VMRUN = 1;
+  ctrl_area->svm_instrs.VMRUN = 1;
   guest_state->cr0 = 0x00000001;    // PE 
   ctrl_area->guest_ASID = 1;
 
@@ -492,24 +533,24 @@ void Init_VMCB_pe(vmcb_t *vmcb, struct guest_info vm_info) {
 
   // Setup exits
 
-  ctrl_area->cr_writes.crs.cr4 = 1;
+  ctrl_area->cr_writes.cr4 = 1;
   
-  ctrl_area->exceptions.ex_names.de = 1;
-  ctrl_area->exceptions.ex_names.df = 1;
-  ctrl_area->exceptions.ex_names.pf = 1;
-  ctrl_area->exceptions.ex_names.ts = 1;
-  ctrl_area->exceptions.ex_names.ss = 1;
-  ctrl_area->exceptions.ex_names.ac = 1;
-  ctrl_area->exceptions.ex_names.mc = 1;
-  ctrl_area->exceptions.ex_names.gp = 1;
-  ctrl_area->exceptions.ex_names.ud = 1;
-  ctrl_area->exceptions.ex_names.np = 1;
-  ctrl_area->exceptions.ex_names.of = 1;
-  ctrl_area->exceptions.ex_names.nmi = 1;
+  ctrl_area->exceptions.de = 1;
+  ctrl_area->exceptions.df = 1;
+  ctrl_area->exceptions.pf = 1;
+  ctrl_area->exceptions.ts = 1;
+  ctrl_area->exceptions.ss = 1;
+  ctrl_area->exceptions.ac = 1;
+  ctrl_area->exceptions.mc = 1;
+  ctrl_area->exceptions.gp = 1;
+  ctrl_area->exceptions.ud = 1;
+  ctrl_area->exceptions.np = 1;
+  ctrl_area->exceptions.of = 1;
+  ctrl_area->exceptions.nmi = 1;
 
   
 
-  ctrl_area->instrs.instrs.IOIO_PROT = 1;
+  ctrl_area->instrs.IOIO_PROT = 1;
   ctrl_area->IOPM_BASE_PA = (uint_t)os_hooks->allocate_pages(3);
   
   {
@@ -518,7 +559,7 @@ void Init_VMCB_pe(vmcb_t *vmcb, struct guest_info vm_info) {
     memset((void*)(tmp_reg.e_reg.low), 0xffffffff, PAGE_SIZE * 2);
   }
 
-  ctrl_area->instrs.instrs.INTR = 1;
+  ctrl_area->instrs.INTR = 1;
 
   
   {
@@ -586,3 +627,163 @@ void Init_VMCB_pe(vmcb_t *vmcb, struct guest_info vm_info) {
 }
 
 
+
+
+
+#endif
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+/*
+
+
+void Init_VMCB_Real(vmcb_t * vmcb, struct guest_info vm_info) {
+  vmcb_ctrl_t * ctrl_area = GET_VMCB_CTRL_AREA(vmcb);
+  vmcb_saved_state_t * guest_state = GET_VMCB_SAVE_STATE_AREA(vmcb);
+  uint_t i;
+
+
+  guest_state->rsp = vm_info.vm_regs.rsp;
+  guest_state->rip = vm_info.rip;
+
+
+  guest_state->efer |= EFER_MSR_svm_enable;
+  guest_state->rflags = 0x00000002; // The reserved bit is always 1
+  ctrl_area->svm_instrs.instrs.VMRUN = 1;
+  ctrl_area->guest_ASID = 1;
+  guest_state->cr0 = 0x60000010;
+
+
+  ctrl_area->exceptions.de = 1;
+  ctrl_area->exceptions.df = 1;
+  ctrl_area->exceptions.pf = 1;
+  ctrl_area->exceptions.ts = 1;
+  ctrl_area->exceptions.ss = 1;
+  ctrl_area->exceptions.ac = 1;
+  ctrl_area->exceptions.mc = 1;
+  ctrl_area->exceptions.gp = 1;
+  ctrl_area->exceptions.ud = 1;
+  ctrl_area->exceptions.np = 1;
+  ctrl_area->exceptions.of = 1;
+  ctrl_area->exceptions.nmi = 1;
+
+  guest_state->cs.selector = 0xf000;
+  guest_state->cs.limit=0xffff;
+  guest_state->cs.base =  0xffff0000;
+  guest_state->cs.attrib.raw = 0x9a;
+
+  
+  struct vmcb_selector *segregs [] = {&(guest_state->ss), &(guest_state->ds), &(guest_state->es), &(guest_state->fs), &(guest_state->gs), NULL};
+  for ( i = 0; segregs[i] != NULL; i++) {
+    struct vmcb_selector * seg = segregs[i];
+    
+    seg->selector = 0x0000;
+    seg->base = 0xffff0000;
+    seg->attrib.raw = 0x9b;
+    seg->limit = 0xffff;
+  }
+  
+  // Set GPRs 
+  //
+  //  EDX == 0xfxx
+  //  EAX, EBX, ECX, ESI, EDI, EBP, ESP == 0x0
+  //
+
+  guest_state->gdtr.base = 0;
+  guest_state->gdtr.limit = 0xffff;
+  guest_state->gdtr.attrib.raw = 0x0;
+
+  guest_state->idtr.base = 0;
+  guest_state->idtr.limit = 0xffff;
+  guest_state->idtr.attrib.raw = 0x0;
+
+  guest_state->ldtr.base = 0;
+  guest_state->ldtr.limit = 0xffff;
+  guest_state->ldtr.attrib.raw = 0x82;
+
+  guest_state->tr.base = 0;
+  guest_state->tr.limit = 0xffff;
+  guest_state->tr.attrib.raw = 0x83;
+
+
+
+
+  if (vm_info.io_map.num_ports > 0) {
+    vmm_io_hook_t * iter;
+    addr_t io_port_bitmap;
+    
+    io_port_bitmap = (addr_t)os_hooks->allocate_pages(3);
+    memset((uchar_t*)io_port_bitmap, 0, PAGE_SIZE * 3);
+    
+    ctrl_area->IOPM_BASE_PA = io_port_bitmap;
+
+    //PrintDebug("Setting up IO Map at 0x%x\n", io_port_bitmap);
+
+    FOREACH_IO_HOOK(vm_info.io_map, iter) {
+      ushort_t port = iter->port;
+      uchar_t * bitmap = (uchar_t *)io_port_bitmap;
+
+      bitmap += (port / 8);
+      PrintDebug("Setting Bit in block %x\n", bitmap);
+      *bitmap |= 1 << (port % 8);
+    }
+
+    ctrl_area->instrs.instrs.IOIO_PROT = 1;
+  }
+
+  ctrl_area->instrs.instrs.INTR = 1;
+
+  // also determine if CPU supports nested paging
+
+  if (vm_info.page_mode == SHADOW_PAGING) {
+    PrintDebug("Creating initial shadow page table\n");
+    vm_info.shdw_pg_state.shadow_cr3.e_reg.low |= ((addr_t)create_passthrough_pde32_pts(&vm_info) & ~0xfff);
+    PrintDebug("Created\n");
+
+    guest_state->cr3 = vm_info.shdw_pg_state.shadow_cr3.r_reg;
+
+    ctrl_area->cr_reads.crs.cr3 = 1;
+    ctrl_area->cr_writes.crs.cr3 = 1;
+    ctrl_area->cr_reads.crs.cr0 = 1;
+    ctrl_area->cr_writes.crs.cr0 = 1;
+
+    ctrl_area->instrs.instrs.INVLPG = 1;
+    ctrl_area->instrs.instrs.INVLPGA = 1;
+
+	
+    guest_state->g_pat = 0x7040600070406ULL;
+
+    vm_info.shdw_pg_state.guest_cr0.e_reg.low = guest_state->cr0;
+    guest_state->cr0 |= 0x80000000;
+  } else if (vm_info.page_mode == NESTED_PAGING) {
+    // Flush the TLB on entries/exits
+    //ctrl_area->TLB_CONTROL = 1;
+
+    // Enable Nested Paging
+    //ctrl_area->NP_ENABLE = 1;
+
+    //PrintDebug("NP_Enable at 0x%x\n", &(ctrl_area->NP_ENABLE));
+
+        // Set the Nested Page Table pointer
+    //    ctrl_area->N_CR3 = ((addr_t)vm_info.page_tables);
+    // ctrl_area->N_CR3 = (addr_t)(vm_info.page_tables);
+
+    //   ctrl_area->N_CR3 = Get_CR3();
+    // guest_state->cr3 |= (Get_CR3() & 0xfffff000);
+
+    //    guest_state->g_pat = 0x7040600070406ULL;
+  }
+
+}
+*/