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.


lot of changes
[palacios.git] / palacios / include / geekos / vmm_stubs.h
index 5a4b4cb..396e614 100644 (file)
@@ -20,5 +20,62 @@ void * Identity(void *addr);
 int hook_irq_stub(struct guest_info * info, int irq);
 int ack_irq(int irq);
 
+
+unsigned int get_cpu_khz();
+
 void Init_Stubs();
+
+
+
+
+
+
+
+
+
+#if 0
+
+# define do_div(n,base) ({                                     \
+       uint32_t __base = (base);                               \
+       uint32_t __rem;                                         \
+       __rem = ((uint64_t)(n)) % __base;                       \
+       (n) = ((uint64_t)(n)) / __base;                         \
+       __rem;                                                  \
+ })
+
+#else
+
+/*
+ * do_div() is NOT a C function. It wants to return
+ * two values (the quotient and the remainder), but
+ * since that doesn't work very well in C, what it
+ * does is:
+ *
+ * - modifies the 64-bit dividend _in_place_
+ * - returns the 32-bit remainder
+ *
+ * This ends up being the most efficient "calling
+ * convention" on x86.
+ */
+#define do_div(n,base) ({                                   \
+      unsigned long __upper, __low, __high, __mod, __base;   \
+      __base = (base);                                      \
+      asm("":"=a" (__low), "=d" (__high):"A" (n));          \
+      __upper = __high;                                             \
+      if (__high) {                                         \
+       __upper = __high % (__base);                         \
+       __high = __high / (__base);                          \
+      }                                                                        \
+      asm("divl %2":"=a" (__low), "=d" (__mod):"rm" (__base), "0" (__low), "1" (__upper)); \
+      asm("":"=A" (n):"a" (__low),"d" (__high));                       \
+      __mod;                                                           \
+    })
+
+#endif
+
+
+
+
+
+
 #endif