Commit b4b12c62 authored by Anthony Liguori's avatar Anthony Liguori
Browse files

qmp: add qom-list command 



This can be used to list properties in the device model.

Signed-off-by: default avatarAnthony Liguori <aliguori@us.ibm.com>
parent 5dbee474

qapi-schema.json

+48 −0
Original line number Diff line number Diff line
@@ -1168,3 +1168,51 @@ 
# Since: 0.14.0

##

{ 'command': 'migrate_set_speed', 'data': {'value': 'int'} }



##

# @DevicePropertyInfo:

#

# @name: the name of the property

#

# @type: the type of the property.  This will typically come in one of four

#        forms:

#

#        1) A primitive type such as 'u8', 'u16', 'bool', 'str', or 'double'.

#           These types are mapped to the appropriate JSON type.

#

#        2) A legacy type in the form 'legacy<subtype>' where subtype is the

#           legacy qdev typename.  These types are always treated as strings.

#

#        3) A child type in the form 'child<subtype>' where subtype is a qdev

#           device type name.  Child properties create the composition tree.

#

#        4) A link type in the form 'link<subtype>' where subtype is a qdev

#           device type name.  Link properties form the device model graph.

#

# Since: 1.1

#

# Notes: This type is experimental.  Its syntax may change in future releases.

##

{ 'type': 'DevicePropertyInfo',

  'data': { 'name': 'str', 'type': 'str' } }



##

# @qom-list:

#

# This command will list any properties of a device given a path in the device

# model.

#

# @path: the path within the device model.  See @qom-get for a description of

#        this parameter.

#

# Returns: a list of @DevicePropertyInfo that describe the properties of the

#          device.

#

# Since: 1.1

#

# Notes: This command is experimental.  It's syntax may change in future

#        releases.

##

{ 'command': 'qom-list',

  'data': { 'path': 'str' },

  'returns': [ 'DevicePropertyInfo' ] }

qmp-commands.hx

+6 −0
Original line number Diff line number Diff line
@@ -2009,3 +2009,9 @@ EQMP 
        .args_type  = "",

        .mhandler.cmd_new = qmp_marshal_input_query_balloon,

    },



    {

        .name       = "qom-list",

        .args_type  = "path:s",

        .mhandler.cmd_new = qmp_marshal_input_qom_list,

    },

qmp.c

+28 −0
Original line number Diff line number Diff line
@@ -16,6 +16,7 @@ 
#include "qmp-commands.h"

#include "kvm.h"

#include "arch_init.h"

#include "hw/qdev.h"



NameInfo *qmp_query_name(Error **errp)

{
@@ -154,3 +155,30 @@ void qmp_cont(Error **errp) 


    vm_start();

}



DevicePropertyInfoList *qmp_qom_list(const char *path, Error **errp)

{

    DeviceState *dev;

    bool ambiguous = false;

    DevicePropertyInfoList *props = NULL;

    DeviceProperty *prop;



    dev = qdev_resolve_path(path, &ambiguous);

    if (dev == NULL) {

        error_set(errp, QERR_DEVICE_NOT_FOUND, path);

        return NULL;

    }



    QTAILQ_FOREACH(prop, &dev->properties, node) {

        DevicePropertyInfoList *entry = g_malloc0(sizeof(*entry));



        entry->value = g_malloc0(sizeof(DevicePropertyInfo));

        entry->next = props;

        props = entry;



        entry->value->name = g_strdup(prop->name);

        entry->value->type = g_strdup(prop->type);

    }



    return props;

}