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, Peter Dinda <pdinda@northwestern.edu>
11 * Copyright (c) 2008, Jack Lange <jarusl@cs.northwestern.edu>
12 * Copyright (c) 2008, The V3VEE Project <http://www.v3vee.org>
13 * All rights reserved.
15 * Author: Peter Dinda <pdinda@northwestern.edu>
17 * This is free software. You are permitted to use,
18 * redistribute, and modify it as specified in the file "V3VEE_LICENSE".
21 #include <palacios/svm_halt.h>
22 #include <palacios/vmm_intr.h>
27 #define PrintDebug(fmt, args...)
33 // This should trigger a #GP if cpl!=0, otherwise, yield to host
36 int v3_handle_svm_halt(struct guest_info * info)
39 v3_raise_exception(info, GPF_EXCEPTION);
42 // What we should do is starting waiting on an OS event that will
43 // result in an injection of an interrupt.
45 // What we will hackishly do instead is resume on any event
46 // Plus is this totally GeekOS specific
48 ullong_t yield_start = 0;
49 ullong_t yield_stop = 0;
52 PrintDebug("CPU Yield\n");
59 //v3_update_time(info, yield_stop - yield_start);
60 gap = yield_stop - yield_start;
61 if (!v3_intr_pending(info)) {
62 v3_raise_irq(info, 0);
65 PrintDebug("CPU Yield Done (%d cycles)\n", gap);