Commit ee46d8a5 authored by Anthony Liguori's avatar Anthony Liguori

qdev: split out UI portions into a new function

qdev-monitor.c deals with the -device, device_add, and info qdm/qtree
interfaces.
Signed-off-by: default avatarAnthony Liguori <aliguori@us.ibm.com>
parent 9fbe6127
...@@ -113,7 +113,7 @@ common-obj-y += bt-hci-csr.o ...@@ -113,7 +113,7 @@ common-obj-y += bt-hci-csr.o
common-obj-y += buffered_file.o migration.o migration-tcp.o common-obj-y += buffered_file.o migration.o migration-tcp.o
common-obj-y += qemu-char.o #aio.o common-obj-y += qemu-char.o #aio.o
common-obj-y += msmouse.o ps2.o common-obj-y += msmouse.o ps2.o
common-obj-y += qdev.o qdev-properties.o common-obj-y += qdev.o qdev-properties.o qdev-monitor.o
common-obj-y += block-migration.o iohandler.o common-obj-y += block-migration.o iohandler.o
common-obj-y += pflib.o common-obj-y += pflib.o
common-obj-y += bitmap.o bitops.o common-obj-y += bitmap.o bitops.o
......
/*
* Dynamic device configuration and creation.
*
* Copyright (c) 2009 CodeSourcery
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#include "qdev.h"
#include "monitor.h"
/*
* Aliases were a bad idea from the start. Let's keep them
* from spreading further.
*/
typedef struct QDevAlias
{
const char *typename;
const char *alias;
} QDevAlias;
static const QDevAlias qdev_alias_table[] = {
{ "virtio-blk-pci", "virtio-blk" },
{ "virtio-net-pci", "virtio-net" },
{ "virtio-serial-pci", "virtio-serial" },
{ "virtio-balloon-pci", "virtio-balloon" },
{ "virtio-blk-s390", "virtio-blk" },
{ "virtio-net-s390", "virtio-net" },
{ "virtio-serial-s390", "virtio-serial" },
{ "lsi53c895a", "lsi" },
{ "ich9-ahci", "ahci" },
{ }
};
static const char *qdev_class_get_alias(DeviceClass *dc)
{
const char *typename = object_class_get_name(OBJECT_CLASS(dc));
int i;
for (i = 0; qdev_alias_table[i].typename; i++) {
if (strcmp(qdev_alias_table[i].typename, typename) == 0) {
return qdev_alias_table[i].alias;
}
}
return NULL;
}
static bool qdev_class_has_alias(DeviceClass *dc)
{
return (qdev_class_get_alias(dc) != NULL);
}
static void qdev_print_devinfo(ObjectClass *klass, void *opaque)
{
DeviceClass *dc;
bool *show_no_user = opaque;
dc = (DeviceClass *)object_class_dynamic_cast(klass, TYPE_DEVICE);
if (!dc || (show_no_user && !*show_no_user && dc->no_user)) {
return;
}
error_printf("name \"%s\"", object_class_get_name(klass));
if (dc->bus_info) {
error_printf(", bus %s", dc->bus_info->name);
}
if (qdev_class_has_alias(dc)) {
error_printf(", alias \"%s\"", qdev_class_get_alias(dc));
}
if (dc->desc) {
error_printf(", desc \"%s\"", dc->desc);
}
if (dc->no_user) {
error_printf(", no-user");
}
error_printf("\n");
}
static int set_property(const char *name, const char *value, void *opaque)
{
DeviceState *dev = opaque;
if (strcmp(name, "driver") == 0)
return 0;
if (strcmp(name, "bus") == 0)
return 0;
if (qdev_prop_parse(dev, name, value) == -1) {
return -1;
}
return 0;
}
static const char *find_typename_by_alias(const char *alias)
{
int i;
for (i = 0; qdev_alias_table[i].alias; i++) {
if (strcmp(qdev_alias_table[i].alias, alias) == 0) {
return qdev_alias_table[i].typename;
}
}
return NULL;
}
int qdev_device_help(QemuOpts *opts)
{
const char *driver;
Property *prop;
ObjectClass *klass;
DeviceClass *info;
driver = qemu_opt_get(opts, "driver");
if (driver && !strcmp(driver, "?")) {
bool show_no_user = false;
object_class_foreach(qdev_print_devinfo, TYPE_DEVICE, false, &show_no_user);
return 1;
}
if (!driver || !qemu_opt_get(opts, "?")) {
return 0;
}
klass = object_class_by_name(driver);
if (!klass) {
const char *typename = find_typename_by_alias(driver);
if (typename) {
driver = typename;
klass = object_class_by_name(driver);
}
}
if (!klass) {
return 0;
}
info = DEVICE_CLASS(klass);
for (prop = info->props; prop && prop->name; prop++) {
/*
* TODO Properties without a parser are just for dirty hacks.
* qdev_prop_ptr is the only such PropertyInfo. It's marked
* for removal. This conditional should be removed along with
* it.
*/
if (!prop->info->parse) {
continue; /* no way to set it, don't show */
}
error_printf("%s.%s=%s\n", driver, prop->name,
prop->info->legacy_name ?: prop->info->name);
}
for (prop = info->bus_info->props; prop && prop->name; prop++) {
if (!prop->info->parse) {
continue; /* no way to set it, don't show */
}
error_printf("%s.%s=%s\n", driver, prop->name,
prop->info->legacy_name ?: prop->info->name);
}
return 1;
}
static DeviceState *qdev_get_peripheral(void)
{
static DeviceState *dev;
if (dev == NULL) {
dev = qdev_create(NULL, "container");
qdev_property_add_child(qdev_get_root(), "peripheral", dev, NULL);
qdev_init_nofail(dev);
}
return dev;
}
static DeviceState *qdev_get_peripheral_anon(void)
{
static DeviceState *dev;
if (dev == NULL) {
dev = qdev_create(NULL, "container");
qdev_property_add_child(qdev_get_root(), "peripheral-anon", dev, NULL);
qdev_init_nofail(dev);
}
return dev;
}
static void qbus_list_bus(DeviceState *dev)
{
BusState *child;
const char *sep = " ";
error_printf("child busses at \"%s\":",
dev->id ? dev->id : object_get_typename(OBJECT(dev)));
QLIST_FOREACH(child, &dev->child_bus, sibling) {
error_printf("%s\"%s\"", sep, child->name);
sep = ", ";
}
error_printf("\n");
}
static void qbus_list_dev(BusState *bus)
{
DeviceState *dev;
const char *sep = " ";
error_printf("devices at \"%s\":", bus->name);
QTAILQ_FOREACH(dev, &bus->children, sibling) {
error_printf("%s\"%s\"", sep, object_get_typename(OBJECT(dev)));
if (dev->id)
error_printf("/\"%s\"", dev->id);
sep = ", ";
}
error_printf("\n");
}
static BusState *qbus_find_bus(DeviceState *dev, char *elem)
{
BusState *child;
QLIST_FOREACH(child, &dev->child_bus, sibling) {
if (strcmp(child->name, elem) == 0) {
return child;
}
}
return NULL;
}
static DeviceState *qbus_find_dev(BusState *bus, char *elem)
{
DeviceState *dev;
/*
* try to match in order:
* (1) instance id, if present
* (2) driver name
* (3) driver alias, if present
*/
QTAILQ_FOREACH(dev, &bus->children, sibling) {
if (dev->id && strcmp(dev->id, elem) == 0) {
return dev;
}
}
QTAILQ_FOREACH(dev, &bus->children, sibling) {
if (strcmp(object_get_typename(OBJECT(dev)), elem) == 0) {
return dev;
}
}
QTAILQ_FOREACH(dev, &bus->children, sibling) {
DeviceClass *dc = DEVICE_GET_CLASS(dev);
if (qdev_class_has_alias(dc) &&
strcmp(qdev_class_get_alias(dc), elem) == 0) {
return dev;
}
}
return NULL;
}
static BusState *qbus_find_recursive(BusState *bus, const char *name,
const BusInfo *info)
{
DeviceState *dev;
BusState *child, *ret;
int match = 1;
if (name && (strcmp(bus->name, name) != 0)) {
match = 0;
}
if (info && (bus->info != info)) {
match = 0;
}
if (match) {
return bus;
}
QTAILQ_FOREACH(dev, &bus->children, sibling) {
QLIST_FOREACH(child, &dev->child_bus, sibling) {
ret = qbus_find_recursive(child, name, info);
if (ret) {
return ret;
}
}
}
return NULL;
}
static BusState *qbus_find(const char *path)
{
DeviceState *dev;
BusState *bus;
char elem[128];
int pos, len;
/* find start element */
if (path[0] == '/') {
bus = sysbus_get_default();
pos = 0;
} else {
if (sscanf(path, "%127[^/]%n", elem, &len) != 1) {
assert(!path[0]);
elem[0] = len = 0;
}
bus = qbus_find_recursive(sysbus_get_default(), elem, NULL);
if (!bus) {
qerror_report(QERR_BUS_NOT_FOUND, elem);
return NULL;
}
pos = len;
}
for (;;) {
assert(path[pos] == '/' || !path[pos]);
while (path[pos] == '/') {
pos++;
}
if (path[pos] == '\0') {
return bus;
}
/* find device */
if (sscanf(path+pos, "%127[^/]%n", elem, &len) != 1) {
assert(0);
elem[0] = len = 0;
}
pos += len;
dev = qbus_find_dev(bus, elem);
if (!dev) {
qerror_report(QERR_DEVICE_NOT_FOUND, elem);
if (!monitor_cur_is_qmp()) {
qbus_list_dev(bus);
}
return NULL;
}
assert(path[pos] == '/' || !path[pos]);
while (path[pos] == '/') {
pos++;
}
if (path[pos] == '\0') {
/* last specified element is a device. If it has exactly
* one child bus accept it nevertheless */
switch (dev->num_child_bus) {
case 0:
qerror_report(QERR_DEVICE_NO_BUS, elem);
return NULL;
case 1:
return QLIST_FIRST(&dev->child_bus);
default:
qerror_report(QERR_DEVICE_MULTIPLE_BUSSES, elem);
if (!monitor_cur_is_qmp()) {
qbus_list_bus(dev);
}
return NULL;
}
}
/* find bus */
if (sscanf(path+pos, "%127[^/]%n", elem, &len) != 1) {
assert(0);
elem[0] = len = 0;
}
pos += len;
bus = qbus_find_bus(dev, elem);
if (!bus) {
qerror_report(QERR_BUS_NOT_FOUND, elem);
if (!monitor_cur_is_qmp()) {
qbus_list_bus(dev);
}
return NULL;
}
}
}
DeviceState *qdev_device_add(QemuOpts *opts)
{
ObjectClass *obj;
DeviceClass *k;
const char *driver, *path, *id;
DeviceState *qdev;
BusState *bus;
driver = qemu_opt_get(opts, "driver");
if (!driver) {
qerror_report(QERR_MISSING_PARAMETER, "driver");
return NULL;
}
/* find driver */
obj = object_class_by_name(driver);
if (!obj) {
const char *typename = find_typename_by_alias(driver);
if (typename) {
driver = typename;
obj = object_class_by_name(driver);
}
}
if (!obj) {
qerror_report(QERR_INVALID_PARAMETER_VALUE, "driver", "device type");
return NULL;
}
k = DEVICE_CLASS(obj);
/* find bus */
path = qemu_opt_get(opts, "bus");
if (path != NULL) {
bus = qbus_find(path);
if (!bus) {
return NULL;
}
if (bus->info != k->bus_info) {
qerror_report(QERR_BAD_BUS_FOR_DEVICE,
driver, bus->info->name);
return NULL;
}
} else {
bus = qbus_find_recursive(sysbus_get_default(), NULL, k->bus_info);
if (!bus) {
qerror_report(QERR_NO_BUS_FOR_DEVICE,
driver, k->bus_info->name);
return NULL;
}
}
if (qdev_hotplug && !bus->allow_hotplug) {
qerror_report(QERR_BUS_NO_HOTPLUG, bus->name);
return NULL;
}
if (!bus) {
bus = sysbus_get_default();
}
/* create device, set properties */
qdev = DEVICE(object_new(driver));
qdev_set_parent_bus(qdev, bus);
qdev_prop_set_globals(qdev);
id = qemu_opts_id(opts);
if (id) {
qdev->id = id;
qdev_property_add_child(qdev_get_peripheral(), qdev->id, qdev, NULL);
} else {
static int anon_count;
gchar *name = g_strdup_printf("device[%d]", anon_count++);
qdev_property_add_child(qdev_get_peripheral_anon(), name,
qdev, NULL);
g_free(name);
}
if (qemu_opt_foreach(opts, set_property, qdev, 1) != 0) {
qdev_free(qdev);
return NULL;
}
if (qdev_init(qdev) < 0) {
qerror_report(QERR_DEVICE_INIT_FAILED, driver);
return NULL;
}
qdev->opts = opts;
return qdev;
}
#define qdev_printf(fmt, ...) monitor_printf(mon, "%*s" fmt, indent, "", ## __VA_ARGS__)
static void qbus_print(Monitor *mon, BusState *bus, int indent);
static void qdev_print_props(Monitor *mon, DeviceState *dev, Property *props,
const char *prefix, int indent)
{
char buf[64];
if (!props)
return;
while (props->name) {
/*
* TODO Properties without a print method are just for dirty
* hacks. qdev_prop_ptr is the only such PropertyInfo. It's
* marked for removal. The test props->info->print should be
* removed along with it.
*/
if (props->info->print) {
props->info->print(dev, props, buf, sizeof(buf));
qdev_printf("%s-prop: %s = %s\n", prefix, props->name, buf);
}
props++;
}
}
static void qdev_print(Monitor *mon, DeviceState *dev, int indent)
{
BusState *child;
qdev_printf("dev: %s, id \"%s\"\n", object_get_typename(OBJECT(dev)),
dev->id ? dev->id : "");
indent += 2;
if (dev->num_gpio_in) {
qdev_printf("gpio-in %d\n", dev->num_gpio_in);
}
if (dev->num_gpio_out) {
qdev_printf("gpio-out %d\n", dev->num_gpio_out);
}
qdev_print_props(mon, dev, qdev_get_props(dev), "dev", indent);
qdev_print_props(mon, dev, dev->parent_bus->info->props, "bus", indent);
if (dev->parent_bus->info->print_dev)
dev->parent_bus->info->print_dev(mon, dev, indent);
QLIST_FOREACH(child, &dev->child_bus, sibling) {
qbus_print(mon, child, indent);
}
}
static void qbus_print(Monitor *mon, BusState *bus, int indent)
{
struct DeviceState *dev;
qdev_printf("bus: %s\n", bus->name);
indent += 2;
qdev_printf("type %s\n", bus->info->name);
QTAILQ_FOREACH(dev, &bus->children, sibling) {
qdev_print(mon, dev, indent);
}
}
#undef qdev_printf
void do_info_qtree(Monitor *mon)
{
if (sysbus_get_default())
qbus_print(mon, sysbus_get_default(), 0);
}
void do_info_qdm(Monitor *mon)
{
object_class_foreach(qdev_print_devinfo, TYPE_DEVICE, false, NULL);
}
int do_device_add(Monitor *mon, const QDict *qdict, QObject **ret_data)
{
QemuOpts *opts;
opts = qemu_opts_from_qdict(qemu_find_opts("device"), qdict);
if (!opts) {
return -1;
}
if (!monitor_cur_is_qmp() && qdev_device_help(opts)) {
qemu_opts_del(opts);
return 0;
}
if (!qdev_device_add(opts)) {
qemu_opts_del(opts);
return -1;
}
return 0;
}
int do_device_del(Monitor *mon, const QDict *qdict, QObject **ret_data)
{
const char *id = qdict_get_str(qdict, "id");
DeviceState *dev;
dev = qdev_find_recursive(sysbus_get_default(), id);
if (NULL == dev) {
qerror_report(QERR_DEVICE_NOT_FOUND, id);
return -1;
}
return qdev_unplug(dev);
}
void qdev_machine_init(void)
{
qdev_get_peripheral_anon();
qdev_get_peripheral();
}
...@@ -28,9 +28,8 @@ ...@@ -28,9 +28,8 @@
#include "net.h" #include "net.h"
#include "qdev.h" #include "qdev.h"
#include "sysemu.h" #include "sysemu.h"
#include "monitor.h"
static int qdev_hotplug = 0; int qdev_hotplug = 0;
static bool qdev_hot_added = false; static bool qdev_hot_added = false;
static bool qdev_hot_removed = false; static bool qdev_hot_removed = false;
...@@ -38,10 +37,6 @@ static bool qdev_hot_removed = false; ...@@ -38,10 +37,6 @@ static bool qdev_hot_removed = false;
static BusState *main_system_bus; static BusState *main_system_bus;
static void main_system_bus_create(void); static void main_system_bus_create(void);
static BusState *qbus_find_recursive(BusState *bus, const char *name,
const BusInfo *info);
static BusState *qbus_find(const char *path);
/* Register a new device type. */ /* Register a new device type. */
const VMStateDescription *qdev_get_vmsd(DeviceState *dev) const VMStateDescription *qdev_get_vmsd(DeviceState *dev)
{ {
...@@ -61,56 +56,12 @@ Property *qdev_get_props(DeviceState *dev) ...@@ -61,56 +56,12 @@ Property *qdev_get_props(DeviceState *dev)
return dc->props; return dc->props;
} }</