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default devices: qemu monitor.

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This patch makes the monitor default device configuration work like the
default serial and parallel port devices.  It adds a variable
default_monitor which says whenever a default monitor should be added.
It is enabled by default.  It is cleared when qemu finds '-monitor' on
the command line.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Gerd Hoffmann 2009-12-08 13:11:43 +01:00 committed by Anthony Liguori
parent 6a5e8b0e31
commit abdeed06b4
1 changed files with 50 additions and 44 deletions
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94
vl.c
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@ -211,6 +211,7 @@ int no_quit = 0;
CharDriverState *serial_hds[MAX_SERIAL_PORTS];
CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
CharDriverState *virtcon_hds[MAX_VIRTIO_CONSOLES];
CharDriverState *monitor_hds[MAX_MONITOR_DEVICES];
#ifdef TARGET_I386
int win2k_install_hack = 0;
int rtc_td_hack = 0;
@ -273,6 +274,7 @@ static void *boot_set_opaque;
static int default_serial = 1;
static int default_parallel = 1;
static int default_monitor = 1;
static struct {
const char *driver;
@ -4628,6 +4630,7 @@ struct device_config {
DEV_BT, /* -bt */
DEV_SERIAL, /* -serial */
DEV_PARALLEL, /* -parallel */
DEV_MONITOR, /* -monitor */
} type;
const char *cmdline;
QTAILQ_ENTRY(device_config) next;
@ -4659,22 +4662,27 @@ static int foreach_device_config(int type, int (*func)(const char *cmdline))
return 0;
}
static void serial_monitor_mux(const char *monitor_devices[])
static void serial_monitor_mux(void)
{
struct device_config *serial;
struct device_config *mon0, *serial;
const char *devname;
if (strcmp(monitor_devices[0],"stdio") != 0)
return;
QTAILQ_FOREACH(mon0, &device_configs, next) {
if (mon0->type != DEV_MONITOR)
continue;
if (strcmp(mon0->cmdline,"stdio") != 0)
return;
break;
}
QTAILQ_FOREACH(serial, &device_configs, next) {
if (serial->type != DEV_SERIAL)
continue;
devname = serial->cmdline;
if (devname && !strcmp(devname,"mon:stdio")) {
monitor_devices[0] = NULL;
QTAILQ_REMOVE(&device_configs, mon0, next);
break;
} else if (devname && !strcmp(devname,"stdio")) {
monitor_devices[0] = NULL;
QTAILQ_REMOVE(&device_configs, mon0, next);
serial->cmdline = "mon:stdio";
break;
}
@ -4725,6 +4733,32 @@ static int parallel_parse(const char *devname)
return 0;
}
static int monitor_parse(const char *devname)
{
static int index = 0;
char label[32];
if (strcmp(devname, "none") == 0)
return 0;
if (index == MAX_MONITOR_DEVICES) {
fprintf(stderr, "qemu: too many monitor devices\n");
exit(1);
}
if (index == 0) {
snprintf(label, sizeof(label), "monitor");
} else {
snprintf(label, sizeof(label), "monitor%d", index);
}
monitor_hds[index] = qemu_chr_open(label, devname, NULL);
if (!monitor_hds[index]) {
fprintf(stderr, "qemu: could not open monitor device '%s'\n",
devname);
return -1;
}
index++;
return 0;
}
int main(int argc, char **argv, char **envp)
{
const char *gdbstub_dev = NULL;
@ -4740,9 +4774,6 @@ int main(int argc, char **argv, char **envp)
QemuOpts *hda_opts = NULL, *opts;
int optind;
const char *r, *optarg;
CharDriverState *monitor_hds[MAX_MONITOR_DEVICES];
const char *monitor_devices[MAX_MONITOR_DEVICES];
int monitor_device_index;
const char *virtio_consoles[MAX_VIRTIO_CONSOLES];
int virtio_console_index;
const char *loadvm = NULL;
@ -4814,12 +4845,6 @@ int main(int argc, char **argv, char **envp)
virtio_consoles[i] = NULL;
virtio_console_index = 0;
monitor_devices[0] = "vc:80Cx24C";
for (i = 1; i < MAX_MONITOR_DEVICES; i++) {
monitor_devices[i] = NULL;
}
monitor_device_index = 0;
for (i = 0; i < MAX_NODES; i++) {
node_mem[i] = 0;
node_cpumask[i] = 0;
@ -5237,12 +5262,8 @@ int main(int argc, char **argv, char **envp)
break;
}
case QEMU_OPTION_monitor:
if (monitor_device_index >= MAX_MONITOR_DEVICES) {
fprintf(stderr, "qemu: too many monitor devices\n");
exit(1);
}
monitor_devices[monitor_device_index] = optarg;
monitor_device_index++;
add_device_config(DEV_MONITOR, optarg);
default_monitor = 0;
break;
case QEMU_OPTION_chardev:
opts = qemu_opts_parse(&qemu_chardev_opts, optarg, "backend");
@ -5557,14 +5578,15 @@ int main(int argc, char **argv, char **envp)
add_device_config(DEV_SERIAL, "stdio");
if (default_parallel)
add_device_config(DEV_PARALLEL, "null");
if (strncmp(monitor_devices[0], "vc", 2) == 0) {
monitor_devices[0] = "stdio";
}
if (default_monitor)
add_device_config(DEV_MONITOR, "stdio");
} else {
if (default_serial)
add_device_config(DEV_SERIAL, "vc:80Cx24C");
if (default_parallel)
add_device_config(DEV_PARALLEL, "vc:80Cx24C");
if (default_monitor)
add_device_config(DEV_MONITOR, "vc:80Cx24C");
}
if (qemu_opts_foreach(&qemu_chardev_opts, chardev_init_func, NULL, 1) != 0)
@ -5716,7 +5738,7 @@ int main(int argc, char **argv, char **envp)
ram_load, NULL);
/* Maintain compatibility with multiple stdio monitors */
serial_monitor_mux(monitor_devices);
serial_monitor_mux();
if (nb_numa_nodes > 0) {
int i;
@ -5760,24 +5782,8 @@ int main(int argc, char **argv, char **envp)
}
}
for (i = 0; i < MAX_MONITOR_DEVICES; i++) {
const char *devname = monitor_devices[i];
if (devname && strcmp(devname, "none")) {
char label[32];
if (i == 0) {
snprintf(label, sizeof(label), "monitor");
} else {
snprintf(label, sizeof(label), "monitor%d", i);
}
monitor_hds[i] = qemu_chr_open(label, devname, NULL);
if (!monitor_hds[i]) {
fprintf(stderr, "qemu: could not open monitor device '%s'\n",
devname);
exit(1);
}
}
}
if (foreach_device_config(DEV_MONITOR, monitor_parse) < 0)
exit(1);
if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
exit(1);
if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
@ -5903,7 +5909,7 @@ int main(int argc, char **argv, char **envp)
text_consoles_set_display(display_state);
for (i = 0; i < MAX_MONITOR_DEVICES; i++) {
if (monitor_devices[i] && monitor_hds[i]) {
if (monitor_hds[i]) {
monitor_init(monitor_hds[i],
MONITOR_USE_READLINE |
((i == 0) ? MONITOR_IS_DEFAULT : 0));