*** target-i386-dm/helper2.c.orig	Wed Jan  7 12:37:30 2009
--- target-i386-dm/helper2.c	Mon Dec 22 16:09:55 2008
***************
*** 47,52 ****
--- 47,54 ----
  #include <limits.h>
  #include <fcntl.h>
  
+ #include <unistd.h>
+ 
  #include <xenctrl.h>
  #include <xen/hvm/ioreq.h>
  
***************
*** 570,575 ****
--- 572,580 ----
      extern int shutdown_requested;
      CPUState *env = opaque;
      ioreq_t *req = cpu_get_ioreq();
+     static int fd = -1;
+     char buf[16];
+     useconds_t udelay;
  
      handle_buffered_io(env);
      if (req) {
***************
*** 606,611 ****
--- 611,625 ----
  	}
  
          req->state = STATE_IORESP_READY;
+ 	if (send_vcpu != 0) {
+ 	    if (fd == -1)
+ 	        fd = open("/tmp/qemu_delay", O_RDONLY);
+ 	    if (fd >= 0) {
+ 		pread(fd, buf, sizeof buf, 0L);
+ 		udelay = atoi(buf);
+ 		usleep(udelay);
+ 	    }
+ 	}
          xc_evtchn_notify(xce_handle, ioreq_local_port[send_vcpu]);
      }
  }