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qdev: add user-specified identifier to devices. 

Add id field to DeviceState.  Make "info qtree" print it.

This helps users and management apps identifying devices in monitor
output, which is especially useful with otherwise identical devices
such as two virtio disks.

This patch doesn't add a way to set the id, followup patches will do.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Gerd Hoffmann 2009-07-15 13:43:34 +02:00 committed by Anthony Liguori
parent 96cc181089
commit ccb63de38e
2 changed files with 5 additions and 2 deletions
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6
hw/qdev.c
View File

@ -114,7 +114,8 @@ void qdev_init(DeviceState *dev)
void qdev_free(DeviceState *dev)
{
LIST_REMOVE(dev, sibling);
free(dev);
qemu_free(dev->id);
qemu_free(dev);
}
/* Get a character (serial) device interface. */
@ -266,7 +267,8 @@ static void qdev_print_props(Monitor *mon, DeviceState *dev, Property *props,
static void qdev_print(Monitor *mon, DeviceState *dev, int indent)
{
BusState *child;
qdev_printf("dev: %s\n", dev->info->name);
qdev_printf("dev: %s, id \"%s\"\n", dev->info->name,
dev->id ? dev->id : "");
indent += 2;
if (dev->num_gpio_in) {
qdev_printf("gpio-in %d\n", dev->num_gpio_in);

1
hw/qdev.h
View File

@ -19,6 +19,7 @@ typedef struct BusInfo BusInfo;
/* This structure should not be accessed directly. We declare it here
so that it can be embedded in individual device state structures. */
struct DeviceState {
char *id;
DeviceInfo *info;
BusState *parent_bus;
int num_gpio_out;