diff options
| -rw-r--r-- | hw/char/escc.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/hw/char/escc.c b/hw/char/escc.c index 4f3872bfe9..4be66053c1 100644 --- a/hw/char/escc.c +++ b/hw/char/escc.c @@ -653,7 +653,9 @@ static void escc_mem_write(void *opaque, hwaddr addr, escc_update_irq(s); s->tx = val; if (s->wregs[W_TXCTRL2] & TXCTRL2_TXEN) { /* tx enabled */ - if (qemu_chr_fe_backend_connected(&s->chr)) { + if (s->wregs[W_MISC2] & MISC2_LCL_LOOP) { + serial_receive_byte(s, s->tx); + } else if (qemu_chr_fe_backend_connected(&s->chr)) { /* * XXX this blocks entire thread. Rewrite to use * qemu_chr_fe_write and background I/O callbacks |