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.


*** empty log message ***
[palacios.git] / palacios / src / geekos / vm.c
index 72940ed..abce2ac 100644 (file)
@@ -2,7 +2,8 @@
 #include <palacios/vmm.h>
 #include <geekos/debug.h>
 #include <geekos/serial.h>
-
+#include <geekos/vm.h>
+#include <geekos/screen.h>
 
 #define SPEAKER_PORT 0x61
 
@@ -64,19 +65,46 @@ int IO_Write(ushort_t port, void * src, uint_t length) {
 }
 
 
+int IO_Read_to_Serial(ushort_t port, void * dst, uint_t length) {
+  PrintBoth("Input from Guest on port %d (0x%x) Length=%d\n", port, port, length);
+  
+  return 0;
+}
+
+
+char * bochs_debug_buf = NULL;
+int bochs_debug_offset = 0;
+
+
+int IO_BOCHS_debug(ushort_t port, void * src, uint_t length) {
+  if (!bochs_debug_buf) {
+    bochs_debug_buf = (char*)Malloc(1024);
+  }
+
+  bochs_debug_buf[bochs_debug_offset++] = *(char*)src;
+
+  if ((*(char*)src == 0xa) ||  (bochs_debug_offset == 1023)) {
+    SerialPrint("BOCHS>%s", bochs_debug_buf);
+    memset(bochs_debug_buf, 0, 1024);
+    bochs_debug_offset = 0;
+  }
+
+  return length;
+}
+
 
 int IO_Write_to_Serial(ushort_t port, void * src, uint_t length) {
-  PrintBoth("Output from Guest on port %d (0x%x) Length=%d\n", port, port, length);
+ SerialPrint("Output from Guest on port %d (0x%x) Length=%d\n", port, port, length);
   switch (length) {
 
   case 1:
-    PrintBoth(">0x%.2x\n", *(char*)src);
+    SerialPrint(">0x%.2x\n", *(char*)src);
     break;
   case 2:
-    PrintBoth(">0x%.4x\n", *(ushort_t*)src);
+    SerialPrint(">0x%.4x\n", *(ushort_t*)src);
     break;
   case 4:
-    PrintBoth(">0x%.8x\n", *(uint_t*)src);
+    SerialPrint(">0x%.8x\n", *(uint_t*)src);
     break;
   default:
     break;
@@ -122,7 +150,7 @@ void BuzzVM()
 
 
 
-int RunVMM() {
+int RunVMM(struct Boot_Info * bootInfo) {
 
     struct vmm_os_hooks os_hooks;
     struct vmm_ctrl_ops vmm_ops;
@@ -134,7 +162,7 @@ int RunVMM() {
     memset(&vmm_ops, 0, sizeof(struct vmm_ctrl_ops));
     memset(&vm_info, 0, sizeof(struct guest_info));
 
-    os_hooks.print_debug = &PrintBoth;
+    os_hooks.print_debug = &SerialPrint;
     os_hooks.print_info = &Print;
     os_hooks.print_trace = &SerialPrint;
     os_hooks.allocate_pages = &Allocate_VMM_Pages;
@@ -172,32 +200,97 @@ int RunVMM() {
       vm_info.vm_regs.rsp = (rsp +4092 );// - 0x2000;
       
             
-    } else {
+    } 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);
       
-      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);
+      /*
+       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);
 
       hook_io_port(&(vm_info.io_map), 0x61, &IO_Read, &IO_Write);
       hook_io_port(&(vm_info.io_map), 0x05, &IO_Read, &IO_Write_to_Serial);
       
       /*
-      vm_info.cr0 = 0;
-      vm_info.cs.base=0xf000;
-      vm_info.cs.limit=0xffff;
+       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 {
+      int i;
+      void * region_start;
+
+      PrintDebug("Guest Size: %lu\n", bootInfo->guest_size);
+
+      struct guest_mem_layout * layout = (struct guest_mem_layout *)0x100000;
+
+      if (layout->magic != MAGIC_CODE) {
+       PrintDebug("Layout Magic Mismatch (0x%x)\n", layout->magic);
+      }
+
+      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 = Allocate_VMM_Pages(num_pages);
+
+       PrintDebug("Layout Region %d bytes\n", reg->length);
+       memcpy(guest_mem, region_start, reg->length);
+       
+       SerialMemDump((unsigned char *)(guest_mem), 16);
+
+       add_shadow_region_passthrough(&vm_info, reg->final_addr, reg->final_addr + (num_pages * PAGE_SIZE), (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);
+
+       region_start += reg->length;
+      }
+      
+      add_shadow_region_passthrough(&vm_info, 0xc0000, 0xc8000, 0xc0000);
+      add_shadow_region_passthrough(&vm_info, 0x0, 0xa0000, (addr_t)Allocate_VMM_Pages(160));
+      add_shadow_region_passthrough(&vm_info, 0xa0000, 0xc0000, 0xa0000); 
+      if (add_shadow_region_passthrough(&vm_info, 0xc8000, 0xf0000, (addr_t)Allocate_VMM_Pages(40)) == -1) {
+       PrintDebug("Error adding shadow region\n");
+      }
+
+      print_shadow_map(&(vm_info.mem_map));
+
+      hook_io_port(&(vm_info.io_map), 0x61, &IO_Read, &IO_Write);
+      hook_io_port(&(vm_info.io_map), 0x05, &IO_Read, &IO_Write_to_Serial);
+
+      hook_io_port(&(vm_info.io_map), 0x20, &IO_Read, &IO_Write_to_Serial);
+      hook_io_port(&(vm_info.io_map), 0x21, &IO_Read, &IO_Write_to_Serial);
+      hook_io_port(&(vm_info.io_map), 0xa0, &IO_Read, &IO_Write_to_Serial);
+      hook_io_port(&(vm_info.io_map), 0xa1, &IO_Read, &IO_Write_to_Serial);
+
+      hook_io_port(&(vm_info.io_map), 0x400, &IO_Read, &IO_Write_to_Serial);
+      hook_io_port(&(vm_info.io_map), 0x401, &IO_Read, &IO_Write_to_Serial);
+      hook_io_port(&(vm_info.io_map), 0x402, &IO_Read, &IO_BOCHS_debug);
+      hook_io_port(&(vm_info.io_map), 0x403, &IO_Read, &IO_Write_to_Serial);
+
+      vm_info.rip = 0xfff0;
+      vm_info.vm_regs.rsp = 0x0;
     }
 
     PrintBoth("Initializing Guest (eip=0x%.8x) (esp=0x%.8x)\n", (uint_t)vm_info.rip,(uint_t)vm_info.vm_regs.rsp);
     (vmm_ops).init_guest(&vm_info);
     PrintBoth("Starting Guest\n");
+    //Clear_Screen();
     (vmm_ops).start_guest(&vm_info);
 
     return 0;