minor updates

[palacios.git] / palacios / include / palacios / vmm_util.h

diff --git a/palacios/include/palacios/vmm_util.h b/palacios/include/palacios/vmm_util.h
index 95a0c8e..38ae086 100644 (file)
--- a/palacios/include/palacios/vmm_util.h
+++ b/palacios/include/palacios/vmm_util.h
@@ -38,7 +38,7 @@ struct VMM_GPRs {
 
 
 void PrintTraceHex(unsigned char x);
-
+void PrintTraceLL(ullong_t num);
 void PrintTraceMemDump(unsigned char * start, int n);
 
 
@@ -97,19 +97,38 @@ void PrintTraceMemDump(unsigned char * start, int n);
  * 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; \
-})
+#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;                                                           \
+    })
+
+
+
+/* This divides two 64bit unsigned ints
+ * The previous version only allows 32 bit bases(?)...
+ * 
+ * NOTE: This absolutely sucks... there has to be a better way....
+ */
+#define do_divll(n, base) ({                           \
+      ullong_t __rem = 0;                              \
+      ullong_t __num = 0;                              \
+      while (n > base) {                               \
+       __num++;                                        \
+       n -= base;                                      \
+      }                                                        \
+      __rem = n;                                       \
+      n = __num;                                       \
+      __rem;                                           \
+    })                                         
 
 #endif
 
@@ -117,4 +136,6 @@ void PrintTraceMemDump(unsigned char * start, int n);
 
 
 
+
+
 #endif