xref: /openbmc/qemu/qapi/pci.json (revision 7cc25f6c)
1# -*- Mode: Python -*-
2# vim: filetype=python
3#
4# This work is licensed under the terms of the GNU GPL, version 2 or later.
5# See the COPYING file in the top-level directory.
6# SPDX-License-Identifier: GPL-2.0-or-later
7
8##
9# = PCI
10##
11
12##
13# @PciMemoryRange:
14#
15# A PCI device memory region
16#
17# @base: the starting address (guest physical)
18#
19# @limit: the ending address (guest physical)
20#
21# Since: 0.14
22##
23{ 'struct': 'PciMemoryRange', 'data': {'base': 'int', 'limit': 'int'} }
24
25##
26# @PciMemoryRegion:
27#
28# Information about a PCI device I/O region.
29#
30# @bar: the index of the Base Address Register for this region
31#
32# @type: - 'io' if the region is a PIO region
33#        - 'memory' if the region is a MMIO region
34#
35# @size: memory size
36#
37# @prefetch: if @type is 'memory', true if the memory is prefetchable
38#
39# @mem_type_64: if @type is 'memory', true if the BAR is 64-bit
40#
41# Since: 0.14
42##
43{ 'struct': 'PciMemoryRegion',
44  'data': {'bar': 'int', 'type': 'str', 'address': 'int', 'size': 'int',
45           '*prefetch': 'bool', '*mem_type_64': 'bool' } }
46
47##
48# @PciBusInfo:
49#
50# Information about a bus of a PCI Bridge device
51#
52# @number: primary bus interface number.  This should be the number of the
53#          bus the device resides on.
54#
55# @secondary: secondary bus interface number.  This is the number of the
56#             main bus for the bridge
57#
58# @subordinate: This is the highest number bus that resides below the
59#               bridge.
60#
61# @io_range: The PIO range for all devices on this bridge
62#
63# @memory_range: The MMIO range for all devices on this bridge
64#
65# @prefetchable_range: The range of prefetchable MMIO for all devices on
66#                      this bridge
67#
68# Since: 2.4
69##
70{ 'struct': 'PciBusInfo',
71  'data': {'number': 'int', 'secondary': 'int', 'subordinate': 'int',
72           'io_range': 'PciMemoryRange',
73           'memory_range': 'PciMemoryRange',
74           'prefetchable_range': 'PciMemoryRange' } }
75
76##
77# @PciBridgeInfo:
78#
79# Information about a PCI Bridge device
80#
81# @bus: information about the bus the device resides on
82#
83# @devices: a list of @PciDeviceInfo for each device on this bridge
84#
85# Since: 0.14
86##
87{ 'struct': 'PciBridgeInfo',
88  'data': {'bus': 'PciBusInfo', '*devices': ['PciDeviceInfo']} }
89
90##
91# @PciDeviceClass:
92#
93# Information about the Class of a PCI device
94#
95# @desc: a string description of the device's class
96#
97# @class: the class code of the device
98#
99# Since: 2.4
100##
101{ 'struct': 'PciDeviceClass',
102  'data': {'*desc': 'str', 'class': 'int'} }
103
104##
105# @PciDeviceId:
106#
107# Information about the Id of a PCI device
108#
109# @device: the PCI device id
110#
111# @vendor: the PCI vendor id
112#
113# @subsystem: the PCI subsystem id (since 3.1)
114#
115# @subsystem-vendor: the PCI subsystem vendor id (since 3.1)
116#
117# Since: 2.4
118##
119{ 'struct': 'PciDeviceId',
120  'data': {'device': 'int', 'vendor': 'int', '*subsystem': 'int',
121            '*subsystem-vendor': 'int'} }
122
123##
124# @PciDeviceInfo:
125#
126# Information about a PCI device
127#
128# @bus: the bus number of the device
129#
130# @slot: the slot the device is located in
131#
132# @function: the function of the slot used by the device
133#
134# @class_info: the class of the device
135#
136# @id: the PCI device id
137#
138# @irq: if an IRQ is assigned to the device, the IRQ number
139#
140# @irq_pin: the IRQ pin, zero means no IRQ (since 5.1)
141#
142# @qdev_id: the device name of the PCI device
143#
144# @pci_bridge: if the device is a PCI bridge, the bridge information
145#
146# @regions: a list of the PCI I/O regions associated with the device
147#
148# Notes: the contents of @class_info.desc are not stable and should only be
149#        treated as informational.
150#
151# Since: 0.14
152##
153{ 'struct': 'PciDeviceInfo',
154  'data': {'bus': 'int', 'slot': 'int', 'function': 'int',
155           'class_info': 'PciDeviceClass', 'id': 'PciDeviceId',
156           '*irq': 'int', 'irq_pin': 'int', 'qdev_id': 'str',
157           '*pci_bridge': 'PciBridgeInfo', 'regions': ['PciMemoryRegion'] }}
158
159##
160# @PciInfo:
161#
162# Information about a PCI bus
163#
164# @bus: the bus index
165#
166# @devices: a list of devices on this bus
167#
168# Since: 0.14
169##
170{ 'struct': 'PciInfo', 'data': {'bus': 'int', 'devices': ['PciDeviceInfo']} }
171
172##
173# @query-pci:
174#
175# Return information about the PCI bus topology of the guest.
176#
177# Returns: a list of @PciInfo for each PCI bus. Each bus is
178#          represented by a json-object, which has a key with a json-array of
179#          all PCI devices attached to it. Each device is represented by a
180#          json-object.
181#
182# Since: 0.14
183#
184# Example:
185#
186# -> { "execute": "query-pci" }
187# <- { "return": [
188#          {
189#             "bus": 0,
190#             "devices": [
191#                {
192#                   "bus": 0,
193#                   "qdev_id": "",
194#                   "slot": 0,
195#                   "class_info": {
196#                      "class": 1536,
197#                      "desc": "Host bridge"
198#                   },
199#                   "id": {
200#                      "device": 32902,
201#                      "vendor": 4663
202#                   },
203#                   "function": 0,
204#                   "regions": [
205#                   ]
206#                },
207#                {
208#                   "bus": 0,
209#                   "qdev_id": "",
210#                   "slot": 1,
211#                   "class_info": {
212#                      "class": 1537,
213#                      "desc": "ISA bridge"
214#                   },
215#                   "id": {
216#                      "device": 32902,
217#                      "vendor": 28672
218#                   },
219#                   "function": 0,
220#                   "regions": [
221#                   ]
222#                },
223#                {
224#                   "bus": 0,
225#                   "qdev_id": "",
226#                   "slot": 1,
227#                   "class_info": {
228#                      "class": 257,
229#                      "desc": "IDE controller"
230#                   },
231#                   "id": {
232#                      "device": 32902,
233#                      "vendor": 28688
234#                   },
235#                   "function": 1,
236#                   "regions": [
237#                      {
238#                         "bar": 4,
239#                         "size": 16,
240#                         "address": 49152,
241#                         "type": "io"
242#                      }
243#                   ]
244#                },
245#                {
246#                   "bus": 0,
247#                   "qdev_id": "",
248#                   "slot": 2,
249#                   "class_info": {
250#                      "class": 768,
251#                      "desc": "VGA controller"
252#                   },
253#                   "id": {
254#                      "device": 4115,
255#                      "vendor": 184
256#                   },
257#                   "function": 0,
258#                   "regions": [
259#                      {
260#                         "prefetch": true,
261#                         "mem_type_64": false,
262#                         "bar": 0,
263#                         "size": 33554432,
264#                         "address": 4026531840,
265#                         "type": "memory"
266#                      },
267#                      {
268#                         "prefetch": false,
269#                         "mem_type_64": false,
270#                         "bar": 1,
271#                         "size": 4096,
272#                         "address": 4060086272,
273#                         "type": "memory"
274#                      },
275#                      {
276#                         "prefetch": false,
277#                         "mem_type_64": false,
278#                         "bar": 6,
279#                         "size": 65536,
280#                         "address": -1,
281#                         "type": "memory"
282#                      }
283#                   ]
284#                },
285#                {
286#                   "bus": 0,
287#                   "qdev_id": "",
288#                   "irq": 11,
289#                   "slot": 4,
290#                   "class_info": {
291#                      "class": 1280,
292#                      "desc": "RAM controller"
293#                   },
294#                   "id": {
295#                      "device": 6900,
296#                      "vendor": 4098
297#                   },
298#                   "function": 0,
299#                   "regions": [
300#                      {
301#                         "bar": 0,
302#                         "size": 32,
303#                         "address": 49280,
304#                         "type": "io"
305#                      }
306#                   ]
307#                }
308#             ]
309#          }
310#       ]
311#    }
312#
313# Note: This example has been shortened as the real response is too long.
314#
315##
316{ 'command': 'query-pci', 'returns': ['PciInfo'] }
317