2 * This file is part of the Palacios Virtual Machine Monitor developed
3 * by the V3VEE Project with funding from the United States National
4 * Science Foundation and the Department of Energy.
6 * The V3VEE Project is a joint project between Northwestern University
7 * and the University of New Mexico. You can find out more at
10 * Copyright (c) 2008, Jack Lange <jarusl@cs.northwestern.edu>
11 * Copyright (c) 2008, The V3VEE Project <http://www.v3vee.org>
12 * All rights reserved.
14 * Author: Jack Lange <jarusl@cs.northwestern.edu>
16 * This is free software. You are permitted to use,
17 * redistribute, and modify it as specified in the file "V3VEE_LICENSE".
25 #include <palacios/vmm_types.h>
29 #define PAGE_SIZE 4096
33 typedef union reg_ex {
44 // These are the GPRs layed out according to 'pusha'
57 #define GET_LOW_32(x) (*((uint_t*)(&(x))))
58 #define GET_HIGH_32(x) (*((uint_t*)(((char*)(&(x)))+4)))
61 void PrintTraceHex(unsigned char x);
62 void PrintTraceLL(ullong_t num);
63 void PrintTraceMemDump(unsigned char * start, int n);
68 #define rdtsc(low,high) \
69 __asm__ __volatile__("rdtsc" : "=a" (low), "=d" (high))
72 __asm__ __volatile__("rdtsc" : "=a" (low) : : "edx")
76 #define rdtscll(val) \
77 __asm__ __volatile__("rdtsc" : "=A" (val))
79 #elif defined(__x86_64__)
81 #define rdtscll(val) do { \
83 asm volatile("rdtsc" : "=a" (a), "=d" (d)); \
84 (val) = ((unsigned long)a) | (((unsigned long)d)<<32); \
99 # define do_div(n,base) ({ \
100 uint32_t __base = (base); \
102 __rem = ((uint64_t)(n)) % __base; \
103 (n) = ((uint64_t)(n)) / __base; \
110 * do_div() is NOT a C function. It wants to return
111 * two values (the quotient and the remainder), but
112 * since that doesn't work very well in C, what it
115 * - modifies the 64-bit dividend _in_place_
116 * - returns the 32-bit remainder
118 * This ends up being the most efficient "calling
119 * convention" on x86.
121 #define do_div(n,base) ({ \
122 unsigned long __upper, __low, __high, __mod, __base; \
124 asm("":"=a" (__low), "=d" (__high):"A" (n)); \
127 __upper = __high % (__base); \
128 __high = __high / (__base); \
130 asm("divl %2":"=a" (__low), "=d" (__mod):"rm" (__base), "0" (__low), "1" (__upper)); \
131 asm("":"=A" (n):"a" (__low),"d" (__high)); \
137 /* This divides two 64bit unsigned ints
138 * The previous version only allows 32 bit bases(?)...
140 * NOTE: This absolutely sucks... there has to be a better way....
142 #define do_divll(n, base) ({ \
143 ullong_t __rem = 0; \
144 ullong_t __num = 0; \
160 #endif // ! __V3VEE__