* Copyright (c) 2001,2003,2004 David H. Hovemeyer <daveho@cs.umd.edu>
* Copyright (c) 2003, Jeffrey K. Hollingsworth <hollings@cs.umd.edu>
* Copyright (c) 2004, Iulian Neamtiu <neamtiu@cs.umd.edu>
- * $Revision: 1.14 $
+ * $Revision: 1.35 $
*
* This is free software. You are permitted to use,
* redistribute, and modify it as specified in the file "COPYING".
#include <geekos/mem.h>
#include <geekos/paging.h>
#include <geekos/ide.h>
+#include <geekos/malloc.h>
#include <geekos/debug.h>
-#include <geekos/vmm.h>
+
+#include <geekos/vm.h>
#include <geekos/gdt.h>
-#include <geekos/vmm_sizes.h>
#include <geekos/vmm_stubs.h>
-/*
- static inline unsigned int cpuid_ecx(unsigned int op)
- {
- unsigned int eax, ecx;
-
- __asm__("cpuid"
- : "=a" (eax), "=c" (ecx)
- : "0" (op)
- : "bx", "dx" );
-
- return ecx;
- }
-*/
-
-
-
-extern void Get_MSR(ulong_t msr, unsigned int *val1, unsigned int *val2);
-extern void Set_MSR(ulong_t msr, ulong_t val1, ulong_t val2);
-extern uint_t Get_EIP();
-extern uint_t Get_ESP();
-extern uint_t Get_EBP();
-int foo=42;
#define SPEAKER_PORT 0x61
+
void Buzz(unsigned delay, unsigned num)
{
volatile int x;
}
-extern void MyBuzzVM();
-
-#define MYBUZZVM_START MyBuzzVM
-#define MYBUZZVM_LEN 0x3d
-
-void BuzzVM()
-{
- int x;
- int j;
- unsigned char init;
-
-
- SerialPrint("Starting To Buzz\n");
-
- init=MyIn_Byte(SPEAKER_PORT);
-
- while (1) {
- MyOut_Byte(SPEAKER_PORT, init|0x2);
- for (j=0;j<1000000;j++) {
- x+=j;
- }
- MyOut_Byte(SPEAKER_PORT, init);
- for (j=0;j<1000000;j++) {
- x+=j;
- }
- }
-}
-
-extern void RunVM();
-
-int vmRunning = 0;
-
-void RunVM() {
- vmRunning = 1;
-
- while(1);
-}
-
-void Hello(ulong_t arg)
-{
- char *b="hello ";
- char byte;
- short port=0xe9;
- int i;
- while(1){
- for (i=0;i<6;i++) {
- byte=b[i];
- __asm__ __volatile__ ("outb %b0, %w1" : : "a"(byte), "Nd"(port) );
- }
- }
-}
-
void Keyboard_Listener(ulong_t arg) {
ulong_t * doIBuzz = (ulong_t*)arg;
Keycode key_press;
extern char end;
-/*
-void VM_Thread(ulong_t arg)
-{
- int ret;
- struct VMDescriptor *vm = (struct VMDescriptor *) arg;
-
- SerialPrintLevel(100,"VM_Thread: Launching VM with (entry_ip=%x, exit_eip=%x, guest_esp=%x)\n",
- vm->entry_ip, vm->exit_eip, vm->guest_esp);
-
- SerialPrintLevel(100,"VM_Thread: You should see nothing further from me\n");
-
-
- ret = VMLaunch(vm);
-
-
- SerialPrintLevel(100,"VM_Thread: uh oh...");
-
- switch (ret) {
- case VMX_SUCCESS:
- SerialPrintLevel(100,"Normal VMExit Occurred\n");
- break;
- case VMX_FAIL_INVALID:
- SerialPrintLevel(100,"Possibile invalid VMCS (%.8x)\n", ret);
- break;
- case VMX_FAIL_VALID:
- SerialPrintLevel(100,"Valid VMCS, errorcode recorded in VMCS\n");
- break;
- case VMM_ERROR:
- SerialPrintLevel(100,"VMM Error\n");
- break;
- default:
- SerialPrintLevel(100,"VMLaunch returned unknown error (%.8x)\n", ret);
- break;
- }
-
- SerialPrintLevel(100,"VM_Thread: Spinning\n");
- while (1) {}
-
-}
-*/
+/* This is an ugly hack to get at the VM memory */
+ulong_t vm_range_start;
+ulong_t vm_range_end;
+ulong_t guest_kernel_start;
+ulong_t guest_kernel_end;
+/* ** */
int AllocateAndMapPagesForRange(uint_t start, uint_t length, pte_t template_pte)
{
struct Kernel_Thread * key_thread;
struct Kernel_Thread * spkr_thread;
- // struct Kernel_Thread * vm_thread;
- // struct VMDescriptor vm;
ulong_t doIBuzz = 0;
+ Out_Byte(0x1234,5);
+ Out_Byte(0x1234,5);
+
Init_BSS();
Init_Screen();
-
Init_Serial();
Init_Mem(bootInfo);
Init_CRC32();
Init_Keyboard();
Init_VM(bootInfo);
Init_Paging();
+ Init_Stubs();
// Init_IDE();
- Print("Done; stalling\n");
+ // Print("Done; stalling\n");
#if 0
- SerialPrint("Dumping VM kernel Code (first 512 bytes @ 0x%x)\n",VM_KERNEL_START);
- SerialMemDump((unsigned char *)VM_KERNEL_START, 512);
+ SerialPrint("Dumping VM kernel Code (first 128 bytes @ 0x%x)\n", 0x100000);
+ SerialMemDump((unsigned char *)0x100000, 256);
/*
SerialPrint("Dumping kernel Code (first 512 bytes @ 0x%x)\n",KERNEL_START);
SerialMemDump((unsigned char *)VM_KERNEL_START, 512);
*/
#endif
-#if 0
- SerialPrint("Dumping GUEST KERNEL CODE (first 512*2 bytes @ 0x100000)\n");
- SerialMemDump((unsigned char *)0x100000, 512*2);
-#endif
-
-
-
- {
- struct vmm_os_hooks os_hooks;
- struct vmm_ctrl_ops vmm_ops;
- guest_info_t vm_info;
- memset(&os_hooks, 0, sizeof(struct vmm_os_hooks));
- memset(&vmm_ops, 0, sizeof(struct vmm_ctrl_ops));
- memset(&vm_info, 0, sizeof(guest_info_t));
-
- os_hooks.print_debug = &PrintBoth;
- os_hooks.print_info = &Print;
- os_hooks.print_trace = &SerialPrint;
- os_hooks.Allocate_Pages = &Allocate_VMM_Pages;
- os_hooks.Free_Page = &Free_VMM_Page;
-
- Init_VMM(&os_hooks, &vmm_ops);
-
-
-
- vm_info.rip = (ullong_t)(void*)&BuzzVM;
- vm_info.rsp = (ulong_t)Alloc_Page();
-
- SerialPrint("Initializing Guest\n");
- (vmm_ops).init_guest(&vm_info);
- SerialPrint("Starting Guest\n");
- (vmm_ops).start_guest(&vm_info);
-
- }
-
+#if 1
+ SerialPrint("Dumping BIOS code ffff0-fffff\n\n");
+ SerialMemDump((unsigned char *)0x10fff0, 16);
+ /*
+ SerialPrint("Dumping kernel Code (first 512 bytes @ 0x%x)\n",KERNEL_START);
+ SerialMemDump((unsigned char *)VM_KERNEL_START, 512);
+ */
- SerialPrintLevel(1000,"Launching Noisemaker and keyboard listener threads\n");
-
+ SerialPrint("Noisemaker and keyboard listener threads\n");
key_thread = Start_Kernel_Thread(Keyboard_Listener, (ulong_t)&doIBuzz, PRIORITY_NORMAL, false);
spkr_thread = Start_Kernel_Thread(Buzzer, (ulong_t)&doIBuzz, PRIORITY_NORMAL, false);
+#endif
+ {
+ RunVMM(bootInfo);
+ }
-
-
- // Try to launch a real VM
-
-
- // We now map pages of physical memory into where we are going
- // to slap the vmxassist, bios, and vgabios code
- /*
- pte_t template_pte;
-
- template_pte.present=1;
- template_pte.flags=VM_WRITE|VM_READ|VM_USER|VM_EXEC;
- template_pte.accessed=0;
- template_pte.dirty=0;
- template_pte.pteAttribute=0;
- template_pte.globalPage=0;
- template_pte.kernelInfo=0;
-
- SerialPrintLevel(1000,"Allocating Pages for VM kernel\n");
-
-#define SEGLEN (1024*64)
-
- AllocateAndMapPagesForRange(START_OF_VM+0x100000, VM_KERNEL_LENGTH / 512, template_pte);
-*/
- // Now we should be copying into actual memory
-
- //SerialPrintLevel(1000,"Copying VM code from %x to %x (%d bytes)\n", VM_KERNEL_START, START_OF_VM+0x100000,VM_KERNEL_LENGTH);
- //memcpy((char*)(START_OF_VM+0x100000),(char*)VM_KERNEL_START,VM_KERNEL_LENGTH);
-
- //SerialPrintLevel(1000, "VM copied\n");
-
- /*
- // jump into vmxassist
- vm.entry_ip=(uint_t)0x00107fd0;
- vm.exit_eip=0;
- // Put the stack at 512K
- vm.guest_esp=(uint_t)4096 + 8192 - 4;
- *(unsigned int *)(vm.guest_esp) = 1024 * 1024;
- vm.guest_esp -= 4;
- *(unsigned int *)(vm.guest_esp) = 8;
- vm.guest_esp -= 4;
- *(unsigned int *)(vm.guest_esp) = vm.guest_esp + 4;;
- vm.guest_esp -= 4;
- *(unsigned int *)(vm.guest_esp) = vm.entry_ip;
- // vm.guest_esp -= 4;
-
-
- SerialMemDump((unsigned char *)vm.entry_ip, 512);
- */
-
- // vm_thread = Start_Kernel_Thread(VM_Thread, (ulong_t)&vm,PRIORITY_NORMAL,false);
-
- SerialPrintLevel(1000,"Next: setup GDT\n");
-
TODO("Write a Virtual Machine Monitor");
-
- /* Now this thread is done. */
+
Exit(0);
}
