Hello,
well, the subject line is not exactly true: my patch does not
add a new device, but allows to disable a device.
"-serial none" disables the default serial device,
"-parallel none" disables the default parallel device.
It is also possible to skip a device:
"-serial none -serial vc" adds serial 1 without serial 0.
Many new PC platforms do not provide a serial device - now
QEMU can emulate these platforms better :-)
Regards
Stefan
Index: vl.c
===================================================================
RCS file: /sources/qemu/qemu/vl.c,v
retrieving revision 1.210
diff -u -b -B -r1.210 vl.c
--- vl.c 19 Aug 2006 12:37:52 -0000 1.210
+++ vl.c 1 Sep 2006 15:13:30 -0000
@@ -6844,27 +6844,29 @@
monitor_init(monitor_hd, !nographic);
for(i = 0; i < MAX_SERIAL_PORTS; i++) {
- if (serial_devices[i][0] != '\0') {
- serial_hds[i] = qemu_chr_open(serial_devices[i]);
+ const char *devname = serial_devices[i];
+ if (devname[0] != '\0' && strcmp(devname, "none")) {
+ serial_hds[i] = qemu_chr_open(devname);
if (!serial_hds[i]) {
fprintf(stderr, "qemu: could not open serial device '%s'\n",
- serial_devices[i]);
+ devname);
exit(1);
}
- if (!strcmp(serial_devices[i], "vc"))
+ if (!strcmp(devname, "vc"))
qemu_chr_printf(serial_hds[i], "serial%d console\r\n", i);
}
}
for(i = 0; i < MAX_PARALLEL_PORTS; i++) {
- if (parallel_devices[i][0] != '\0') {
- parallel_hds[i] = qemu_chr_open(parallel_devices[i]);
+ const char *devname = parallel_devices[i];
+ if (devname[0] != '\0' && strcmp(devname, "none")) {
+ parallel_hds[i] = qemu_chr_open(devname);
if (!parallel_hds[i]) {
fprintf(stderr, "qemu: could not open parallel device '%s'\n",
- parallel_devices[i]);
+ devname);
exit(1);
}
- if (!strcmp(parallel_devices[i], "vc"))
+ if (!strcmp(devname, "vc"))
qemu_chr_printf(parallel_hds[i], "parallel%d console\r\n", i);
}
}
Index: qemu-doc.texi
===================================================================
RCS file: /sources/qemu/qemu/qemu-doc.texi,v
retrieving revision 1.107
diff -u -b -B -r1.107 qemu-doc.texi
--- qemu-doc.texi 21 Aug 2006 20:28:18 -0000 1.107
+++ qemu-doc.texi 1 Sep 2006 15:13:31 -0000
@@ -506,12 +506,16 @@
This option can be used several times to simulate up to 4 serials
ports.
+Use @code{-serial none} to disable all serial ports.
+
Available character devices are:
@table @code
@item vc
Virtual console
@item pty
[Linux only] Pseudo TTY (a new PTY is automatically allocated)
[EMAIL PROTECTED] none
+No device is allocated.
@item null
void device
@item /dev/XXX
@@ -593,6 +597,8 @@
This option can be used several times to simulate up to 3 parallel
ports.
+Use @code{-parallel none} to disable all parallel ports.
+
@item -monitor dev
Redirect the monitor to host device @var{dev} (same devices as the
serial port).
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