From patchwork Thu Mar 25 12:58:13 2010
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Subject: [RESEND] Serial: DOS Plus regression
Date: Thu, 25 Mar 2010 02:58:13 -0000
From: Roy Tam <roytam@gmail.com>
X-Patchwork-Id: 48515
Message-Id: <473191351003250558m8bb35c7t1c89ee94bd05ee61@mail.gmail.com>
To: qemu-devel <qemu-devel@nongnu.org>

The commit in r1049 (serial interrupt fix (Hampa Hug)) prevents
booting Digital Research DOSPlus. Following patch partially reverts
that commit and makes DOSPlus booting in QEMU again.

Sign-off-by: Roy Tam <roytam@gmail.com>

---


diff --git a/hw/serial.c b/hw/serial.c
index f3ec36a..2ae550e 100644
--- a/hw/serial.c
+++ b/hw/serial.c
@@ -401,10 +401,6 @@ static void serial_ioport_write(void *opaque,
                      s->poll_msl = 0;
                 }
             }
-            if (s->lsr & UART_LSR_THRE) {
-                s->thr_ipending = 1;
-                serial_update_irq(s);
-            }
         }
         break;
     case 2: