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".
20 #include <palacios/vmm.h>
21 #include <palacios/vmm_host_events.h>
25 struct guest_info * g_vm_guest = NULL;
28 // This is the function the interface code should call to deliver
29 // the interrupt to the vmm for handling
30 //extern int v3_deliver_interrupt(struct guest_info * vm, struct v3_interrupt *intr);
33 struct guest_info * irq_to_guest_map[256];
39 void Init_Stubs(struct guest_info * info) {
40 memset(irq_to_guest_map, 0, sizeof(struct guest_info *) * 256);
45 void * kitten_pa_to_va(void *ptr)
50 void * kitten_va_to_pa(void *ptr)
55 void * Allocate_VMM_Pages(int num_pages)
58 struct pmem_region result;
60 rc=pmem_alloc_umem(num_pages*PAGE_SIZE,PAGE_SIZE,&result);
69 void Free_VMM_Page(void * page)
72 struct pmem_region query;
73 struct pmem_region result;
75 pmem_region_unset_all(&query);
78 query.end=page+PAGE_SIZE;
80 rc=pmem_query(&query,&result);
83 result.allocated=FALSE;
91 void * VMM_Malloc(unsigned int size) {
92 return Malloc((unsigned long) size);
96 void VMM_Free(void * addr) {
102 void send_key_to_vmm(unsigned char status, unsigned char scancode) {
103 struct v3_keyboard_event evt;
106 evt.scan_code = scancode;
109 v3_deliver_keyboard_event(g_vm_guest, &evt);
114 void send_mouse_to_vmm(unsigned char packet[3]) {
115 struct v3_mouse_event evt;
117 memcpy(evt.data, packet, 3);
120 v3_deliver_mouse_event(g_vm_guest, &evt);
124 void send_tick_to_vmm(unsigned int period_us) {
125 struct v3_timer_event evt;
127 evt.period_us = period_us;
130 v3_deliver_timer_event(g_vm_guest, &evt);
135 void translate_intr_handler(struct pt_regs *regs, unsigned int vector)
137 struct v3_interrupt intr;
139 intr.irq = vector-32;
140 intr.error = regs->orig_rax;
143 // PrintBoth("translate_intr_handler: opaque=0x%x\n",mystate.opaque);
145 v3_deliver_irq(irq_to_guest_map[intr.irq], &intr);
151 int kitten_hook_interrupt(struct guest_info * vm, unsigned int irq)
153 if (irq_to_guest_map[irq]) {
154 //PrintBoth("Attempt to hook interrupt that is already hooked\n");
157 //PrintBoth("Hooked interrupt 0x%x with opaque 0x%x\n", irq, vm);
158 irq_to_guest_map[irq] = vm;
161 set_idtvec_handler(irq,translate_intr_handler);
168 lapic_ack_interrupt();
175 unsigned int get_cpu_khz()
177 return cpu_info[0].arch.cur_cpu_khz;