* 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: 1.3 $
+ * Copyright (c) 2008, Jack Lange <jarusl@cs.northwestern.edu>
+ * $Revision: 1.47 $
*
* 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/vmx.h>
-#include <geekos/vmcs.h>
+#include <geekos/debug.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;
- }
-*/
+#include <geekos/pci.h>
+#include <geekos/net.h>
-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();
+#define SPEAKER_PORT 0x61
-int foo=42;
-#define SPEAKER_PORT 0x61
+
+
+void Spin()
+{
+ // hack - competing thread
+ while (1) {};
+
+}
void Buzz(unsigned delay, unsigned num)
}
-extern void MyBuzzVM();
-
-#define MYBUZZVM_START MyBuzzVM
-#define MYBUZZVM_LEN 0x3d
-
-void BuzzVM()
-{
- int x;
- int j;
- unsigned char init;
-
-
- 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);
-}
-
-extern uint_t VMCS_STORE();
-extern uint_t VMCS_READ();
-
void Buzzer(ulong_t arg) {
-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;
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)
*/
void Main(struct Boot_Info* bootInfo)
{
- 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();
- InitSerial();
+
+ Init_Serial();
+
+ /* {
+ extern char BSS_START, BSS_END;
+
+ SerialPrint("BSS 0x%x->0x%x\n", &BSS_START, &BSS_END);
+
+ }*/
+
+
+ // SerialPrint("Guest Mem Dump at 0x%x\n", 0x100000);
+ //SerialMemDump((unsigned char *)(0x100000), 261 * 1024);
+
Init_Mem(bootInfo);
Init_CRC32();
Init_TSS();
Init_Keyboard();
Init_VM(bootInfo);
Init_Paging();
+
+ //Init_PCI();
+
+ Init_Stubs();
- Init_IDE();
+ Init_Network();
- Print("Done; stalling\n");
- while(1);
+ // Init_IDE();
+
+ // Print("Done; stalling\n");
-#if 1
- SerialPrint("Dumping VM kernel Code (first 512 bytes @ 0x%x)\n",VM_KERNEL_START);
- SerialMemDump((unsigned char *)VM_KERNEL_START, 512);
+#if 0
+ 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
-
- SerialPrint("\n\nHello, Welcome to this horrid output-only serial interface\n");
- SerialPrint("Eventually, this will let us control the VMM\n\n");
-
- SerialPrint("\n\n===>");
-
-
- SerialPrintLevel(100,"Initializing VMX\n");
- PrintBoth("Initializing VMX\n");
- VmxOnRegion * vmxRegion = InitVMX();
-
- if (vmxRegion==NULL) {
- PrintBoth("VMX Cannot be turned on. Halted.\n");
- while (1) {}
- }
-
-
-
- SerialPrintLevel(1000,"Launching 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);
-
-
-// Enable this to run the simple buzzer VM
-#if 0
-
- // Put the entry around 0x10000, where the geekos kernel used to live
- vm.entry_ip=(uint_t)0x10000;
- vm.exit_eip=0;
- // Put the stack as the last thing in the VM partition
- vm.guest_esp=(uint_t)START_OF_VM+VM_SIZE-1;
-
-
- memcpy(vm.entry_ip,MYBUZZVM_START,MYBUZZVM_LEN);
-
- SerialPrintLevel(1000,"VM-Launching MyBuzzVM after copy to 0x10000\n");
+#if 1
+ struct Kernel_Thread *spin_thread;
- vm_thread = Start_Kernel_Thread(VM_Thread, (ulong_t)&vm,PRIORITY_NORMAL,false);
+ spin_thread=Start_Kernel_Thread(Spin,0,PRIORITY_NORMAL,false);
-#else
+#endif
#if 0
+ {
- // write the hello VM down to where we would usually put
- // vmxassist, and see if it can talk to us
- vm.entry_ip=(uint_t)START_OF_VM+0xd000000;
- vm.exit_eip=0;
- // Put the stack as the last thing in the VM partition
- vm.guest_esp=(uint_t)START_OF_VM+VM_SIZE-1;
-
-
- memcpy((void*)(vm.entry_ip),Hello,200); // 200 should be plenty
-
- SerialPrintLevel(1000,"VM-Launching HelloVM after copy to 0xd000000\n");
-
- vm_thread = Start_Kernel_Thread(VM_Thread, (ulong_t)&vm,PRIORITY_NORMAL,false);
-
-#else
- // Try to launch a real VM
-
- // First we will copy down VMXAssist, then we'll launch that
- // and see if it can handle the system bios
-
- // 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
+ struct Kernel_Thread * key_thread;
+ struct Kernel_Thread * spkr_thread;
- 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);
+ ulong_t doIBuzz = 0;
- //SerialPrintLevel(1000, "VM copied\n");
+ 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);
+ */
- // jump into vmxassist
- vm.entry_ip=(uint_t)0x100000;
- vm.exit_eip=0;
- // Put the stack at 512K
- vm.guest_esp=(uint_t)START_OF_VM+1024*512;
+ 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
- SerialPrintLevel(1000,"VM-Launching to vmxassist for boot\n");
- vm_thread = Start_Kernel_Thread(VM_Thread, (ulong_t)&vm,PRIORITY_NORMAL,false);
+ {
+ RunVMM(bootInfo);
+ }
-
- SerialPrintLevel(1000,"Next: setup GDT\n");
-#endif
-#endif
+ SerialPrint("RunVMM returned, spinning\n");
+ while (1) {}
TODO("Write a Virtual Machine Monitor");
-
- /* Now this thread is done. */
+
Exit(0);
}
