Palacios Public Git Repository

To checkout Palacios execute

  git clone http://v3vee.org/palacios/palacios.web/palacios.git
This will give you the master branch. You probably want the devel branch or one of the release branches. To switch to the devel branch, simply execute
  cd palacios
  git checkout --track -b devel origin/devel
The other branches are similar.


added hypercall registration and handler
[palacios.git] / palacios / src / palacios / vmm_config.c
index dfb7974..5e0defc 100644 (file)
@@ -1,6 +1,31 @@
+/* 
+ * This file is part of the Palacios Virtual Machine Monitor developed
+ * by the V3VEE Project with funding from the United States National 
+ * Science Foundation and the Department of Energy.  
+ *
+ * The V3VEE Project is a joint project between Northwestern University
+ * and the University of New Mexico.  You can find out more at 
+ * http://www.v3vee.org
+ *
+ * Copyright (c) 2008, Jack Lange <jarusl@cs.northwestern.edu> 
+ * Copyright (c) 2008, The V3VEE Project <http://www.v3vee.org> 
+ * All rights reserved.
+ *
+ * Author: Jack Lange <jarusl@cs.northwestern.edu>
+ *
+ * This is free software.  You are permitted to use,
+ * redistribute, and modify it as specified in the file "V3VEE_LICENSE".
+ */
+
 #include <palacios/vmm_config.h>
 #include <palacios/vmm.h>
 #include <palacios/vmm_debug.h>
+#include <palacios/vmm_msr.h>
+#include <palacios/vmm_decoder.h>
+#include <palacios/vmm_profiler.h>
+#include <palacios/vmm_mem.h>
+#include <palacios/vmm_hypercall.h>
+
 
 #include <devices/serial.h>
 #include <devices/keyboard.h>
 #include <devices/8254.h>
 #include <devices/nvram.h>
 #include <devices/generic.h>
+#include <devices/ramdisk.h>
+#include <devices/cdrom.h>
+#include <devices/bochs_debug.h>
+#include <devices/os_debug.h>
+#include <devices/apic.h>
+#include <devices/io_apic.h>
+
+
+
+#include <palacios/vmm_host_events.h>
+
+#define USE_GENERIC 1
+
+
+#define ROMBIOS_START 0x000f0000
+#define VGABIOS_START 0x000c0000
+
+
+
+static int setup_memory_map(struct guest_info * info, struct v3_vm_config * config_ptr);
+static int setup_devices(struct guest_info * info, struct v3_vm_config * config_ptr);
+static struct vm_device *  configure_generic(struct guest_info * info, struct v3_vm_config * config_ptr);
 
 
 
-int config_guest(struct guest_info * info, void * config_ptr) {
 
-  struct guest_mem_layout * layout = (struct guest_mem_layout *)config_ptr;
+static int passthrough_mem_write(addr_t guest_addr, void * src, uint_t length, void * priv_data) {
+
+  return length;
+  //  memcpy((void*)guest_addr, src, length);
+  PrintDebug("Write of %d bytes to %p\n", length, (void *)guest_addr);
+  PrintDebug("Write Value = %p\n", (void *)*(addr_t *)src);
+
+  return length;
+}
+
+
+
+int v3_config_guest(struct guest_info * info, struct v3_vm_config * config_ptr) {
   extern v3_cpu_arch_t v3_cpu_type;
-  void * region_start;
-  int i;
 
-  
+  // Initialize the subsystem data strutures
   v3_init_time(info);
-  init_shadow_map(info);
+  v3_init_io_map(info);
+  v3_init_msr_map(info);
+  v3_init_interrupt_state(info);
+  v3_init_dev_mgr(info);
+  v3_init_host_events(info);
+
+  v3_init_decoder(info);
+  
+  v3_init_shadow_map(info);
+  
+  v3_init_hypercall_map(info);
+
   
   if (v3_cpu_type == V3_SVM_REV3_CPU) {
     info->shdw_pg_mode = NESTED_PAGING;
   } else {
-    init_shadow_page_state(info);
+    v3_init_shadow_page_state(info);
     info->shdw_pg_mode = SHADOW_PAGING;
   }
   
+  // Initial CPU operating mode
   info->cpu_mode = REAL;
   info->mem_mode = PHYSICAL_MEM;
-  
-  init_vmm_io_map(info);
-  init_interrupt_state(info);
-  
-  dev_mgr_init(info);
-  
+
+  // Amount of ram the Guest will have
+  info->mem_size = config_ptr->mem_size;
+
+  // Configure the memory map for the guest
+  setup_memory_map(info, config_ptr);
+
+  // Configure the devices for the guest
+  setup_devices(info, config_ptr);
  
-  //     SerialPrint("Guest Mem Dump at 0x%x\n", 0x100000);
-  //PrintDebugMemDump((unsigned char *)(0x100000), 261 * 1024);
-  if (layout->magic != MAGIC_CODE) {
-    
-    PrintDebug("Layout Magic Mismatch (0x%x)\n", layout->magic);
-    return -1;
+
+
+  if (config_ptr->enable_profiling) {
+    info->enable_profiler = 1;
+    v3_init_profiler(info);
+  } else {
+    info->enable_profiler = 0;
   }
+
+  //v3_hook_io_port(info, 1234, &IO_Read, NULL, info);
+
+  // Setup initial cpu register state
+  info->rip = 0xfff0;
+  info->vm_regs.rsp = 0x0;
   
-  PrintDebug("%d layout regions\n", layout->num_regions);
-  
-  region_start = (void *)&(layout->regions[layout->num_regions]);
-  
-  PrintDebug("region start = 0x%x\n", region_start);
-  
-  for (i = 0; i < layout->num_regions; i++) {
-    struct layout_region * reg = &(layout->regions[i]);
-    uint_t num_pages = (reg->length / PAGE_SIZE) + ((reg->length % PAGE_SIZE) ? 1 : 0);
-    void * guest_mem = V3_AllocPages(num_pages);
-    
-    PrintDebug("Layout Region %d bytes\n", reg->length);
-    memcpy(guest_mem, region_start, reg->length);
-    
-    PrintDebugMemDump((unsigned char *)(guest_mem), 16);
-    
-    add_shadow_region_passthrough(info, reg->final_addr, reg->final_addr + (num_pages * PAGE_SIZE), (addr_t)guest_mem);
+
+  return 0;
+}
+
+
+/* TODO:
+ * The amount of guest memory is stored in info->mem_size
+ * We need to make sure the memory map extends to cover it
+ */
+static int setup_memory_map(struct guest_info * info, struct v3_vm_config * config_ptr) {
+
+  /* layout rombios */
+  {
+    uint_t num_pages = (config_ptr->rombios_size + PAGE_SIZE - 1) / PAGE_SIZE;
+    void * guest_mem =  V3_AllocPages(num_pages);
+
+    PrintDebug("Layout Region %d bytes\n", config_ptr->rombios_size);
+    memcpy(V3_VAddr(guest_mem), config_ptr->rombios, config_ptr->rombios_size);
+
+    v3_add_shadow_mem(info, ROMBIOS_START, ROMBIOS_START + (num_pages * PAGE_SIZE) - 1, (addr_t)guest_mem);
     
-    PrintDebug("Adding Shadow Region (0x%x-0x%x) -> 0x%x\n", reg->final_addr, reg->final_addr + (num_pages * PAGE_SIZE), guest_mem);
+    PrintDebug("Adding Shadow Region (0x%p-0x%p) -> 0x%p\n", 
+              (void *)ROMBIOS_START, 
+              (void *)ROMBIOS_START + (num_pages * PAGE_SIZE), 
+              (void *)guest_mem);
+  }
+
+
+  /* layout vgabios */
+  {
+    uint_t num_pages = (config_ptr->vgabios_size + PAGE_SIZE - 1) / PAGE_SIZE;
+    void * guest_mem =  V3_AllocPages(num_pages);
+
+    PrintDebug("Layout Region %d bytes\n", config_ptr->vgabios_size);
+    memcpy(V3_VAddr(guest_mem), config_ptr->vgabios, config_ptr->vgabios_size);
+
+    v3_add_shadow_mem(info, VGABIOS_START, VGABIOS_START + (num_pages * PAGE_SIZE) - 1, (addr_t)guest_mem);
     
-    region_start += reg->length;
+    PrintDebug("Adding Shadow Region (0x%p-0x%p) -> 0x%p\n", 
+              (void *)VGABIOS_START, 
+              (void *)VGABIOS_START + (num_pages * PAGE_SIZE), 
+              (void *)guest_mem);
   }
-  
+
       //     
-  add_shadow_region_passthrough(info, 0x0, 0xa0000, (addr_t)V3_AllocPages(160));
-  
-  add_shadow_region_passthrough(info, 0xa0000, 0xc0000, 0xa0000); 
-  //hook_guest_mem(info, 0xa0000, 0xc0000, passthrough_mem_read, passthrough_mem_write, NULL);
+  v3_add_shadow_mem(info, 0x0, 0x9ffff, (addr_t)V3_AllocPages(160));
   
+  if (1) {
+    v3_add_shadow_mem(info, 0xa0000, 0xbffff, 0xa0000); 
+  } else {
+    v3_hook_write_mem(info, 0xa0000, 0xbffff, 0xa0000,  passthrough_mem_write, NULL);
+  }  
   
   // TEMP
   //add_shadow_region_passthrough(info, 0xc0000, 0xc8000, 0xc0000);
   
   if (1) {
-    add_shadow_region_passthrough(info, 0xc7000, 0xc8000, (addr_t)V3_AllocPages(1));
-    if (add_shadow_region_passthrough(info, 0xc8000, 0xf0000, (addr_t)V3_AllocPages(40)) == -1) {
+    v3_add_shadow_mem(info, 0xc7000, 0xc8000, (addr_t)V3_AllocPages(1));
+    if (v3_add_shadow_mem(info, 0xc8000, 0xf0000, (addr_t)V3_AllocPages(40)) == -1) {
       PrintDebug("Error adding shadow region\n");
     }
   } else {
-    add_shadow_region_passthrough(info, 0xc0000, 0xc8000, 0xc0000);
-    add_shadow_region_passthrough(info, 0xc8000, 0xf0000, 0xc8000);
+    v3_add_shadow_mem(info, 0xc0000, 0xc8000, 0xc0000);
+    v3_add_shadow_mem(info, 0xc8000, 0xf0000, 0xc8000);
   }
   
   
-  //add_shadow_region_passthrough(info, 0x100000, 0x2000000, (addr_t)Allocate_VMM_Pages(8192));
-  add_shadow_region_passthrough(info, 0x100000, 0x1000000, (addr_t)V3_AllocPages(4096));
-  
-  add_shadow_region_passthrough(info, 0x1000000, 0x8000000, (addr_t)V3_AllocPages(32768));
-  
+  if (1) {
+    v3_add_shadow_mem(info, 0x100000, 0x1000000, (addr_t)V3_AllocPages(4096));
+  } else {
+    /* MEMORY HOOK TEST */
+    v3_add_shadow_mem(info, 0x100000, 0xa00000, (addr_t)V3_AllocPages(2304));
+    v3_hook_write_mem(info, 0xa00000, 0xa01000, (addr_t)V3_AllocPages(1), passthrough_mem_write, NULL); 
+    v3_add_shadow_mem(info, 0xa01000, 0x1000000, (addr_t)V3_AllocPages(1791));
+  }
+
+  v3_add_shadow_mem(info, 0x1000000, 0x8000000, (addr_t)V3_AllocPages(32768));
   // test - give linux accesss to PCI space - PAD
-  add_shadow_region_passthrough(info, 0xc0000000,0xffffffff,0xc0000000);
+  //v3_add_shadow_mem(info, 0xc0000000,0xffffffff,0xc0000000);
   
   
-  print_shadow_map(&(info->mem_map));
+  print_shadow_map(info);
 
-  
-  {
-    
-    struct vm_device * nvram = create_nvram();
-    //struct vm_device * timer = create_timer();
-    struct vm_device * pic = create_pic();
-    struct vm_device * keyboard = create_keyboard();
-    struct vm_device * pit = create_pit(); 
-    //struct vm_device * serial = create_serial();
-    
-    
-#define GENERIC 1
-    
-#if GENERIC
-    generic_port_range_type range[] = {
-#if 1
-      {0x00, 0x07, GENERIC_PRINT_AND_IGNORE},   // DMA 1 channels 0,1,2,3 (address, counter)
-      {0xc0, 0xc7, GENERIC_PRINT_AND_IGNORE},   // DMA 2 channels 4,5,6,7 (address, counter)
-      {0x87, 0x87, GENERIC_PRINT_AND_IGNORE},   // DMA 1 channel 0 page register
-      {0x83, 0x83, GENERIC_PRINT_AND_IGNORE},   // DMA 1 channel 1 page register
-      {0x81, 0x81, GENERIC_PRINT_AND_IGNORE},   // DMA 1 channel 2 page register
-      {0x82, 0x82, GENERIC_PRINT_AND_IGNORE},   // DMA 1 channel 3 page register
-      {0x8f, 0x8f, GENERIC_PRINT_AND_IGNORE},   // DMA 2 channel 4 page register
-      {0x8b, 0x8b, GENERIC_PRINT_AND_IGNORE},   // DMA 2 channel 5 page register
-      {0x89, 0x89, GENERIC_PRINT_AND_IGNORE},   // DMA 2 channel 6 page register
-      {0x8a, 0x8a, GENERIC_PRINT_AND_IGNORE},   // DMA 2 channel 7 page register
-      {0x08, 0x0f, GENERIC_PRINT_AND_IGNORE},   // DMA 1 misc registers (csr, req, smask,mode,clearff,reset,enable,mmask)
-      {0xd0, 0xde, GENERIC_PRINT_AND_IGNORE},   // DMA 2 misc registers
-#endif
-      
-      
-      {0x3f8, 0x3f8+7, GENERIC_PRINT_AND_IGNORE},      // COM 1
-      {0x2f8, 0x2f8+7, GENERIC_PRINT_AND_IGNORE},      // COM 2
-      {0x3e8, 0x3e8+7, GENERIC_PRINT_AND_IGNORE},      // COM 3
-      {0x2e8, 0x2e8+7, GENERIC_PRINT_AND_IGNORE},      // COM 4
-      
-#if 0
-      {0x170, 0x178, GENERIC_PRINT_AND_PASSTHROUGH}, // IDE 1
-      {0x376, 0x377, GENERIC_PRINT_AND_PASSTHROUGH}, // IDE 1
-      {0x1f0, 0x1f8, GENERIC_PRINT_AND_PASSTHROUGH}, // IDE 0
-      {0x3f6, 0x3f7, GENERIC_PRINT_AND_PASSTHROUGH}, // IDE 0
-#endif
-      
+  return 0;
+}
 
-#if 0
-      {0x3f0, 0x3f2, GENERIC_PRINT_AND_IGNORE}, // Primary floppy controller (base,statusa/statusb,DOR)
-      {0x3f4, 0x3f5, GENERIC_PRINT_AND_IGNORE}, // Primary floppy controller (mainstat/datarate,data)
-      {0x3f7, 0x3f7, GENERIC_PRINT_AND_IGNORE}, // Primary floppy controller (DIR)
-      {0x370, 0x372, GENERIC_PRINT_AND_IGNORE}, // Secondary floppy controller (base,statusa/statusb,DOR)
-      {0x374, 0x375, GENERIC_PRINT_AND_IGNORE}, // Secondary floppy controller (mainstat/datarate,data)
-      {0x377, 0x377, GENERIC_PRINT_AND_IGNORE}, // Secondary floppy controller (DIR)
-      
-#endif
 
-      //         {0x378, 0x400, GENERIC_PRINT_AND_IGNORE}
-      
-      {0,0,0},  // sentinal - must be last
-      
-    };
-    
 
-    struct vm_device * generic = create_generic(range, NULL, NULL);
+static int setup_devices(struct guest_info * info, struct v3_vm_config * config_ptr) {
+    struct vm_device * ramdisk = NULL;
+    struct vm_device * cdrom = NULL;
+    struct vm_device * nvram = v3_create_nvram();
+    //struct vm_device * timer = v3_create_timer();
+    struct vm_device * pic = v3_create_pic();
+    struct vm_device * keyboard = v3_create_keyboard();
+    struct vm_device * pit = v3_create_pit(); 
+    struct vm_device * bochs_debug = v3_create_bochs_debug();
+    struct vm_device * os_debug = v3_create_os_debug();
+    struct vm_device * apic = v3_create_apic();
+    struct vm_device * ioapic = v3_create_io_apic(apic);
+
+    //struct vm_device * serial = v3_create_serial();
+    struct vm_device * generic = NULL;
+
+    int use_ramdisk = config_ptr->use_ramdisk;
+    int use_generic = USE_GENERIC;
+
+
+    if (use_ramdisk) {
+      PrintDebug("Creating Ramdisk\n");
+      ramdisk = v3_create_ramdisk();
+      cdrom = v3_create_cdrom(ramdisk, config_ptr->ramdisk, config_ptr->ramdisk_size); 
+    }
     
-#endif
     
+    if (use_generic) {
+      generic = configure_generic(info, config_ptr);
+    }
+
+
     v3_attach_device(info, nvram);
     //v3_attach_device(info, timer);
     v3_attach_device(info, pic);
     v3_attach_device(info, pit);
     v3_attach_device(info, keyboard);
     // v3_attach_device(info, serial);
+    v3_attach_device(info, bochs_debug);
+    v3_attach_device(info, os_debug);
 
+    v3_attach_device(info, apic);
+    v3_attach_device(info, ioapic);
 
-#if GENERIC
-    // Important that this be attached last!
-    v3_attach_device(info, generic);
-    
-#endif
+    if (use_ramdisk) {
+      v3_attach_device(info, ramdisk);
+      v3_attach_device(info, cdrom);
+    }
+
+    if (use_generic) {
+      // Important that this be attached last!
+      v3_attach_device(info, generic);
+    }
     
     PrintDebugDevMgr(info);
-  }
-  
-  // give keyboard interrupts to vm
-  // no longer needed since we have a keyboard device
-  //hook_irq(&vm_info, 1);
-  
-#if 1
-  // give floppy controller to vm
-  v3_hook_irq_for_guest_injection(info, 6);
-#endif
-  
-#if 1
-  //primary ide
-  v3_hook_irq_for_guest_injection(info, 14);
-  
-  // secondary ide
-  v3_hook_irq_for_guest_injection(info, 15);
-#endif
-  
 
-  info->rip = 0xfff0;
-  info->vm_regs.rsp = 0x0;
-  
+
+    // give keyboard interrupts to vm
+    // no longer needed since we have a keyboard device
+    //hook_irq(&vm_info, 1);
+    
+#if 0
+    // give floppy controller to vm
+    v3_hook_passthrough_irq(info, 6);
+#endif
+    
+    
+    if (!use_ramdisk) {
+      PrintDebug("Hooking IDE IRQs\n");
+      
+      //primary ide
+      v3_hook_passthrough_irq(info, 14);
+      
+      // secondary ide
+      v3_hook_passthrough_irq(info, 15);    
+    }  
+    
 
   return 0;
 }
 
 
 
+static struct vm_device *  configure_generic(struct guest_info * info, struct v3_vm_config * config_ptr) {
+      PrintDebug("Creating Generic Device\n");
+      struct vm_device * generic = v3_create_generic();
+      
+      // Make the DMA controller invisible
+      v3_generic_add_port_range(generic, 0x00, 0x07, GENERIC_PRINT_AND_IGNORE);   // DMA 1 channels 0,1,2,3 (address, counter)
+      v3_generic_add_port_range(generic, 0xc0, 0xc7, GENERIC_PRINT_AND_IGNORE);   // DMA 2 channels 4,5,6,7 (address, counter)
+      v3_generic_add_port_range(generic, 0x87, 0x87, GENERIC_PRINT_AND_IGNORE);   // DMA 1 channel 0 page register
+      v3_generic_add_port_range(generic, 0x83, 0x83, GENERIC_PRINT_AND_IGNORE);   // DMA 1 channel 1 page register
+      v3_generic_add_port_range(generic, 0x81, 0x81, GENERIC_PRINT_AND_IGNORE);   // DMA 1 channel 2 page register
+      v3_generic_add_port_range(generic, 0x82, 0x82, GENERIC_PRINT_AND_IGNORE);   // DMA 1 channel 3 page register
+      v3_generic_add_port_range(generic, 0x8f, 0x8f, GENERIC_PRINT_AND_IGNORE);   // DMA 2 channel 4 page register
+      v3_generic_add_port_range(generic, 0x8b, 0x8b, GENERIC_PRINT_AND_IGNORE);   // DMA 2 channel 5 page register
+      v3_generic_add_port_range(generic, 0x89, 0x89, GENERIC_PRINT_AND_IGNORE);   // DMA 2 channel 6 page register
+      v3_generic_add_port_range(generic, 0x8a, 0x8a, GENERIC_PRINT_AND_IGNORE);   // DMA 2 channel 7 page register
+      v3_generic_add_port_range(generic, 0x08, 0x0f, GENERIC_PRINT_AND_IGNORE);   // DMA 1 misc registers (csr, req, smask,mode,clearff,reset,enable,mmask)
+      v3_generic_add_port_range(generic, 0xd0, 0xde, GENERIC_PRINT_AND_IGNORE);   // DMA 2 misc registers
+      
+      
+      
+      
+      // Make the Serial ports invisible 
+      
+      v3_generic_add_port_range(generic, 0x3f8, 0x3f8+7, GENERIC_PRINT_AND_IGNORE);      // COM 1
+      v3_generic_add_port_range(generic, 0x2f8, 0x2f8+7, GENERIC_PRINT_AND_IGNORE);      // COM 2
+      
 
+      
 
+      v3_generic_add_port_range(generic, 0x3e8, 0x3e8+7, GENERIC_PRINT_AND_IGNORE);      // COM 3
+      v3_generic_add_port_range(generic, 0x2e8, 0x2e8+7, GENERIC_PRINT_AND_IGNORE);      // COM 4
 
+      
+      
 
+      // Make the PCI bus invisible (at least it's configuration)
+      
+      v3_generic_add_port_range(generic, 0xcf8, 0xcf8, GENERIC_PRINT_AND_IGNORE); // PCI Config Address
+      v3_generic_add_port_range(generic, 0xcfc, 0xcfc, GENERIC_PRINT_AND_IGNORE); // PCI Config Data
 
+      
+      
+#if 0
+      if (!use_ramdisk) {
+       // Monitor the IDE controllers (very slow)
+       v3_generic_add_port_range(generic, 0x170, 0x178, GENERIC_PRINT_AND_PASSTHROUGH); // IDE 1
+       v3_generic_add_port_range(generic, 0x376, 0x377, GENERIC_PRINT_AND_PASSTHROUGH); // IDE 1
+      }
+      
 
+      v3_generic_add_port_range(generic, 0x1f0, 0x1f8, GENERIC_PRINT_AND_PASSTHROUGH); // IDE 0
+      v3_generic_add_port_range(generic, 0x3f6, 0x3f7, GENERIC_PRINT_AND_PASSTHROUGH); // IDE 0
+#endif
+      
+      
+#if 0
+      
+      // Make the floppy controllers invisible
+      
+      v3_generic_add_port_range(generic, 0x3f0, 0x3f2, GENERIC_PRINT_AND_IGNORE); // Primary floppy controller (base,statusa/statusb,DOR)
+      v3_generic_add_port_range(generic, 0x3f4, 0x3f5, GENERIC_PRINT_AND_IGNORE); // Primary floppy controller (mainstat/datarate,data)
+      v3_generic_add_port_range(generic, 0x3f7, 0x3f7, GENERIC_PRINT_AND_IGNORE); // Primary floppy controller (DIR)
+      v3_generic_add_port_range(generic, 0x370, 0x372, GENERIC_PRINT_AND_IGNORE); // Secondary floppy controller (base,statusa/statusb,DOR)
+      v3_generic_add_port_range(generic, 0x374, 0x375, GENERIC_PRINT_AND_IGNORE); // Secondary floppy controller (mainstat/datarate,data)
+      v3_generic_add_port_range(generic, 0x377, 0x377, GENERIC_PRINT_AND_IGNORE); // Secondary floppy controller (DIR)
+      
+#endif
 
+#if 1
 
+      // Make the parallel port invisible
+      
+      v3_generic_add_port_range(generic, 0x378, 0x37f, GENERIC_PRINT_AND_IGNORE);
 
+#endif
 
+#if 1
 
+      // Monitor graphics card operations
 
+      v3_generic_add_port_range(generic, 0x3b0, 0x3bb, GENERIC_PRINT_AND_PASSTHROUGH);
+      v3_generic_add_port_range(generic, 0x3c0, 0x3df, GENERIC_PRINT_AND_PASSTHROUGH);
+      
+#endif
 
 
+#if 1
+      // Make the ISA PNP features invisible
 
+      v3_generic_add_port_range(generic, 0x274, 0x277, GENERIC_PRINT_AND_IGNORE);
+      v3_generic_add_port_range(generic, 0x279, 0x279, GENERIC_PRINT_AND_IGNORE);
+      v3_generic_add_port_range(generic, 0xa79, 0xa79, GENERIC_PRINT_AND_IGNORE);
+#endif
 
 
+#if 1
+      // Monitor any network card (realtek ne2000) operations 
+      v3_generic_add_port_range(generic, 0xc100, 0xc1ff, GENERIC_PRINT_AND_PASSTHROUGH);
+#endif
 
 
-#if 0
-
-    
-    if (0) {
-      
-      //    add_shared_mem_range(&(vm_info.mem_layout), 0, 0x800000, 0x10000);    
-      //    add_shared_mem_range(&(vm_info.mem_layout), 0, 0x1000000, 0);
-      
-      rip = (ulong_t)(void*)&BuzzVM;
-      //  rip -= 0x10000;
-      //    rip = (addr_t)(void*)&exit_test;
-      //  rip -= 0x2000;
-      vm_info.rip = rip;
-      rsp = (addr_t)Alloc_Page();
-      
-      vm_info.vm_regs.rsp = (rsp +4092 );// - 0x2000;
+#if 1
+      // Make any Bus master ide controller invisible
       
-            
-    } else if (0) {
-      //add_shared_mem_range(&(vm_info.mem_layout), 0x0, 0x1000, 0x100000);
-      //      add_shared_mem_range(&(vm_info.mem_layout), 0x0, 0x100000, 0x0);
+      v3_generic_add_port_range(generic, 0xc000, 0xc00f, GENERIC_PRINT_AND_IGNORE);
+#endif
+      //  v3_generic_add_port_range(generic, 0x378, 0x400, GENERIC_PRINT_AND_IGNORE);
       
-      /*
-       shadow_region_t *ent = Malloc(sizeof(shadow_region_t));;
-       init_shadow_region_physical(ent,0,0x100000,GUEST_REGION_PHYSICAL_MEMORY,
-       0x100000, HOST_REGION_PHYSICAL_MEMORY);
-       add_shadow_region(&(vm_info.mem_map),ent);
-      */
 
-      add_shadow_region_passthrough(&vm_info, 0x0, 0x100000, 0x100000);
+      return generic;
 
-      v3_hook_io_port(&vm_info, 0x61, &IO_Read, &IO_Write, NULL);
-      v3_hook_io_port(&vm_info, 0x05, &IO_Read, &IO_Write_to_Serial, NULL);
-      
-      /*
-       vm_info.cr0 = 0;
-       vm_info.cs.base=0xf000;
-       vm_info.cs.limit=0xffff;
-      */
-      //vm_info.rip = 0xfff0;
-
-      vm_info.rip = 0;
-      vm_info.vm_regs.rsp = 0x0;
-    } else {
-   
-    }
-
-#endif
+}