diff options
Diffstat (limited to 'hw/char/mcf_uart.c')
| -rw-r--r-- | hw/char/mcf_uart.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/hw/char/mcf_uart.c b/hw/char/mcf_uart.c index 3c0438fd79..c184859c83 100644 --- a/hw/char/mcf_uart.c +++ b/hw/char/mcf_uart.c @@ -114,7 +114,9 @@ static void mcf_uart_do_tx(mcf_uart_state *s) { if (s->tx_enabled && (s->sr & MCF_UART_TxEMP) == 0) { if (s->chr) - qemu_chr_fe_write(s->chr, (unsigned char *)&s->tb, 1); + /* XXX this blocks entire thread. Rewrite to use + * qemu_chr_fe_write and background I/O callbacks */ + qemu_chr_fe_write_all(s->chr, (unsigned char *)&s->tb, 1); s->sr |= MCF_UART_TxEMP; } if (s->tx_enabled) { |