Changeset 6193 in vbox for trunk/src/VBox

Timestamp:

Dec 27, 2007 4:43:51 PM (17 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

26968

Message:

Clear MSR changed variable after reading lsr register to clear interrupt status

File:

• trunk/src/VBox/Devices/Serial/DevSerial.cpp (modified) (2 diffs)

trunk/src/VBox/Devices/Serial/DevSerial.cpp

@@ -358 +358 @@
         if ((ret & 0x7) == UART_IIR_THRI)
             s->thr_ipending = 0;
+        /* reset msr changed bit */
+        s->msr_changed = false;
         serial_update_irq(s);
 #endif
@@ -378 +380 @@
             ret |= (s->mcr & 0x01) << 5;
         } else {
-#ifndef IN_RING3
-        *pRC = VINF_IOM_HC_IOPORT_READ;
-#else
             ret = s->msr;
             /* Reset delta bits. */
             s->msr &= ~UART_MSR_ANY_DELTA;
-            s->msr_changed = false;
-            serial_update_irq(s);
-#endif
         }
         break;