--- /dev/null
+/*
+ * This file is part of the Palacios Virtual Machine Monitor developed
+ * by the V3VEE Project with funding from the United States National
+ * Science Foundation and the Department of Energy.
+ *
+ * The V3VEE Project is a joint project between Northwestern University
+ * and the University of New Mexico. You can find out more at
+ * http://www.v3vee.org
+ *
+ * Copyright (c) 2008, Jack Lange <jarusl@cs.northwestern.edu>
+ * Copyright (c) 2008, The V3VEE Project <http://www.v3vee.org>
+ * All rights reserved.
+ *
+ * Author: Jack Lange <jarusl@cs.northwestern.edu>
+ *
+ * This is free software. You are permitted to use,
+ * redistribute, and modify it as specified in the file "V3VEE_LICENSE".
+ */
+
+#ifndef __VMM_STUBS_H
+#define __VMM_STUBS_H
+
+
+#include <geekos/mem.h>
+#include <geekos/malloc.h>
+
+
+struct guest_info;
+
+
+
+
+void * Allocate_VMM_Pages(int num_pages);
+void Free_VMM_Page(void * page);
+
+void * VMM_Malloc(unsigned int size);
+void VMM_Free(void * addr);
+
+void * Identity(void *addr);
+
+
+
+
+int hook_irq_stub(struct guest_info * info, int irq);
+int ack_irq(int irq);
+
+
+
+int geekos_hook_interrupt(struct guest_info * info, uint_t irq);
+
+
+
+unsigned int get_cpu_khz();
+
+void Init_Stubs(struct guest_info * info);
+
+
+
+
+/****
+ *
+ * stubs called by geekos....
+ *
+ ***/
+void send_key_to_vmm(unsigned char status, unsigned char scancode);
+void send_mouse_to_vmm(unsigned char packet[3]);
+void send_tick_to_vmm(unsigned int period_us);
+
+
+#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
