void *timer_thread(void *arg)
{
int fd = open("#cons/vmctl", O_RDWR), ret;
int initcount;
fprintf(stderr, "TIMER THREAD START 0x%llx\n", vmctl.timer_msr);
// We only begin injection when linux writes a non zero initial count
initcount = vmctl.initial_count;
while (!initcount) {
uthread_usleep(10000);
initcount = vmctl.initial_count;
}
fprintf(stderr, "INJECTING TIMER 0x%llx\n", vmctl.timer_msr);
fflush(stderr);
while (1) {
if (initcount) {
set_posted_interrupt(vmctl.timer_msr & 0xff);
//set_posted_interrupt(0xff);
pwrite(fd, &vmctl, sizeof(vmctl), 1<<12);
}
uthread_usleep(10000);
// check initcount again to make sure linux still wants it
initcount = vmctl.initial_count;
}
close(fd);
}
void *timer_thread(void *arg)
{
while (1) {
set_posted_interrupt(0xef);
ros_syscall(SYS_vmm_poke_guest, 0, 0, 0, 0, 0, 0);
uthread_usleep(100000);
}
fprintf(stderr, "SENDING TIMER\n");
}
void
sender(int fd, int msglen, int interval, int n)
{
int i, extra;
uint16_t seq;
char *buf = malloc(BUFSIZE);
uint8_t me[IPaddrlen], mev4[IPv4addrlen];
struct icmphdr *icmp;
Req *r;
firstseq = seq = rand();
icmp = geticmp(buf);
memset(buf, 0, proto->iphdrsz + ICMP_HDRSIZE);
for(i = proto->iphdrsz + ICMP_HDRSIZE; i < msglen; i++)
buf[i] = i;
icmp->type = proto->echocmd;
icmp->code = 0;
/* arguably the kernel should fill in the right src addr. */
myipvnaddr(me, proto, network);
if (proto->version == 4) {
v6tov4(mev4, me);
memmove(((struct ip4hdr *)buf)->src, mev4, IPv4addrlen);
} else
ipmove(((struct ip6hdr *)buf)->src, me);
if (addresses)
printf("\t%i -> %s\n", me, target);
if(pingrint != 0 && interval <= 0)
pingrint = 0;
extra = 0;
for(i = 0; i < n; i++){
if(i != 0){
if(pingrint != 0)
extra = rand();
/* uth_sleep takes seconds, interval is in ms */
uthread_usleep((interval + extra) * 1000);
}
r = calloc(sizeof *r, 1);
if (r == NULL){
printf("out of memory? \n");
break;
}
hnputs(icmp->seq, seq);
r->seq = seq;
r->next = NULL;
r->replied = 0;
r->tsctime = read_tsc(); /* avoid early free in reply! */
spin_pdr_lock(&listlock);
if(first == NULL)
first = r;
else
last->next = r;
last = r;
spin_pdr_unlock(&listlock);
r->tsctime = read_tsc();
if(write(fd, buf, msglen) < msglen){
fprintf(stderr, "%s: write failed: %r\n", argv0);
return;
}
seq++;
}
done = 1;
}