*** empty log message ***

[palacios.git] / palacios / src / geekos / vmm_stubs.c

diff --git a/palacios/src/geekos/vmm_stubs.c b/palacios/src/geekos/vmm_stubs.c
index 25f300b..1e6a3a3 100644 (file)
--- a/palacios/src/geekos/vmm_stubs.c
+++ b/palacios/src/geekos/vmm_stubs.c
@@ -1,13 +1,43 @@
 #include <geekos/vmm_stubs.h>
 #include <geekos/serial.h>
 #include <palacios/vm_guest.h>
+#include <geekos/debug.h>
+
+
+
+static inline void VM_Out_Byte(ushort_t port, uchar_t value)
+{
+    __asm__ __volatile__ (
+       "outb %b0, %w1"
+       :
+       : "a" (value), "Nd" (port)
+    );
+}
+
+/*
+ * Read a byte from an I/O port.
+ */
+static inline uchar_t VM_In_Byte(ushort_t port)
+{
+    uchar_t value;
+
+    __asm__ __volatile__ (
+       "inb %w1, %b0"
+       : "=a" (value)
+       : "Nd" (port)
+    );
+
+    return value;
+}
+
+
 
 
 void * Identity(void *addr) { return addr; };
 
 void * Allocate_VMM_Pages(int num_pages) {
   void * start_page = Alloc_Page();
-  //SerialPrint("Allocating Page: %x (%d of %d)\n",start_page, 1, num_pages); 
+  //SerialPrint("Starting by Allocating Page: %x (%d of %d)\n",start_page, 1, num_pages); 
   int i = 1;
 
   while (i < num_pages) {
@@ -21,7 +51,7 @@ void * Allocate_VMM_Pages(int num_pages) {
        i--;
       }
       start_page = Alloc_Page();
-      //SerialPrint("Allocating Page: %x (%d of %d)\n",start_page, 1, num_pages);
+      //SerialPrint("Starting over by Allocating Page: %x (%d of %d)\n",start_page, 1, num_pages);
       i = 1;
       continue;
     }
@@ -52,11 +82,10 @@ struct guest_info * irq_map[256];
 static void pic_intr_handler(struct Interrupt_State * state) {
   Begin_IRQ(state);
   struct guest_info * info =   irq_map[state->intNum - 32];
-  SerialPrint("Interrupt %d\n", state->intNum);
+  SerialPrint("Interrupt %d (IRQ=%d)\n", state->intNum, state->intNum - 32);
 
   if (info) {
-    SerialPrint("Calling handler(info=%x)->%x\n", info, info->vm_ops.raise_irq);
-    info->vm_ops.raise_irq(info, state->intNum - 32, state->errorCode);
+    info->vm_ops.raise_irq(info, state->intNum - 32);
   } else {
     SerialPrint("Interrupt handler error: NULL pointer found, no action taken\n");
     End_IRQ(state);
@@ -74,6 +103,13 @@ int hook_irq_stub(struct guest_info * info, int irq) {
 
   SerialPrint("Hooking IRQ: %d (vm=0x%x)\n", irq, info);
   irq_map[irq] = info;
+  volatile void *foo = pic_intr_handler;
+
+  /* This is disabled for the time being */
+  foo = 0;
+
+
+  Disable_IRQ(irq);
   Install_IRQ(irq, pic_intr_handler);
   Enable_IRQ(irq);
   return 0;
@@ -89,3 +125,15 @@ int ack_irq(int irq) {
 void Init_Stubs() {
   memset(irq_map, 0, sizeof(struct guest_info *) * 256);
 }
+
+
+unsigned int get_cpu_khz() {
+  extern uint_t cpu_khz_freq;
+
+  unsigned long  print_khz = (unsigned long)(cpu_khz_freq & 0xffffffff);
+  
+  PrintBoth("Detected %lu.%lu MHz CPU\n", print_khz / 1000, print_khz % 1000);
+
+  return cpu_khz_freq;
+}
+