ioemu: Do not sue xce_handle directly as a file descriptor.

xce handles are not supposed to be used as file descriptors, but
xc_evtchn_fd() be used.

Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>

tools/ioemu/hw/xen_console.c

@@ -381,7 +381,7 @@ static void xencons_startup(void *opaque)
 	qemu_set_fd_handler2(xs_fileno(dom->xsh), NULL, NULL, NULL, NULL);
 
 	fprintf(stderr, "Console: connected to guest frontend\n");
-	if (qemu_set_fd_handler2(dom->xce_handle, NULL, xencons_ring_read, NULL, dom) < 0)
+	if (qemu_set_fd_handler2(xc_evtchn_fd(dom->xce_handle), NULL, xencons_ring_read, NULL, dom) < 0)
 		return;
 
 	qemu_chr_add_handlers(dom->chr, xencons_can_receive, xencons_receive,

tools/ioemu/hw/xenfb.c

@@ -1160,7 +1160,7 @@ static int xenfb_register_console(struct xenfb *xenfb) {
 			     xenfb);
 	dpy_resize(xenfb->ds, xenfb->width, xenfb->height);
 
-	if (qemu_set_fd_handler2(xenfb->evt_xch, NULL, xenfb_dispatch_channel, NULL, xenfb) < 0)
+	if (qemu_set_fd_handler2(xc_evtchn_fd(xenfb->evt_xch), NULL, xenfb_dispatch_channel, NULL, xenfb) < 0)
 	        return -1;
 	if (qemu_set_fd_handler2(xs_fileno(xenfb->xsh), NULL, xenfb_dispatch_store, NULL, xenfb) < 0)
 		return -1;