X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=blobdiff_plain;f=palacios%2Fsrc%2Fgeekos%2Fvmm_stubs.c;h=1e6a3a35e7f623b027d97257b9ebbcff7e60a629;hb=684409c4ad29c0f06167bebf2bb51e21374a6840;hp=c6b76cb7acacf55dc2ea2ea3a00400ed58d8c0bf;hpb=28b1d0ae6db40cb3e1f5a9b3596b625d2f2af0e4;p=palacios.git

diff --git a/palacios/src/geekos/vmm_stubs.c b/palacios/src/geekos/vmm_stubs.c
index c6b76cb..1e6a3a3 100644
--- 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;
     }
@@ -47,14 +77,20 @@ void VMM_Free(void * addr) {
 
 
 
-
 struct guest_info * irq_map[256];
 
-
 static void pic_intr_handler(struct Interrupt_State * state) {
   Begin_IRQ(state);
-
-  irq_map[state->intNum]->vm_ops.raise_irq(irq_map[state->intNum], state->intNum, state->errorCode);
+  struct guest_info * info =   irq_map[state->intNum - 32];
+  SerialPrint("Interrupt %d (IRQ=%d)\n", state->intNum, state->intNum - 32);
+
+  if (info) {
+    info->vm_ops.raise_irq(info, state->intNum - 32);
+  } else {
+    SerialPrint("Interrupt handler error: NULL pointer found, no action taken\n");
+    End_IRQ(state);
+    return;
+  }
 
   // End_IRQ(state);
 }
@@ -65,7 +101,15 @@ int hook_irq_stub(struct guest_info * info, int irq) {
     return -1;
   }
 
+  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;
@@ -80,5 +124,16 @@ 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;
 }
+