]>
Commit | Line | Data |
---|---|---|
6f338c34 AL |
1 | /* |
2 | * QEMU PCI hotplug support | |
3 | * | |
4 | * Copyright (c) 2004 Fabrice Bellard | |
5 | * | |
6 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
7 | * of this software and associated documentation files (the "Software"), to deal | |
8 | * in the Software without restriction, including without limitation the rights | |
9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
10 | * copies of the Software, and to permit persons to whom the Software is | |
11 | * furnished to do so, subject to the following conditions: | |
12 | * | |
13 | * The above copyright notice and this permission notice shall be included in | |
14 | * all copies or substantial portions of the Software. | |
15 | * | |
16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
22 | * THE SOFTWARE. | |
23 | */ | |
24 | ||
25 | #include "hw.h" | |
26 | #include "boards.h" | |
27 | #include "pci.h" | |
28 | #include "net.h" | |
29 | #include "sysemu.h" | |
30 | #include "pc.h" | |
376253ec | 31 | #include "monitor.h" |
6f338c34 | 32 | #include "block_int.h" |
43b443b6 | 33 | #include "scsi.h" |
6f338c34 | 34 | #include "virtio-blk.h" |
c59c7ea9 | 35 | #include "qemu-config.h" |
7a344f7a | 36 | #include "qemu-objects.h" |
6f338c34 | 37 | |
ce88f890 | 38 | #if defined(TARGET_I386) |
1f5f6638 | 39 | static PCIDevice *qemu_pci_hot_add_nic(Monitor *mon, |
c59c7ea9 MM |
40 | const char *devaddr, |
41 | const char *opts_str) | |
6f338c34 | 42 | { |
c59c7ea9 | 43 | QemuOpts *opts; |
53e0d8af GH |
44 | PCIBus *bus; |
45 | int ret, devfn; | |
46 | ||
47 | bus = pci_get_bus_devfn(&devfn, devaddr); | |
48 | if (!bus) { | |
49 | monitor_printf(mon, "Invalid PCI device address %s\n", devaddr); | |
50 | return NULL; | |
51 | } | |
52 | if (!((BusState*)bus)->allow_hotplug) { | |
53 | monitor_printf(mon, "PCI bus doesn't support hotplug\n"); | |
54 | return NULL; | |
55 | } | |
6f338c34 | 56 | |
8212c64f | 57 | opts = qemu_opts_parse(&qemu_net_opts, opts_str ? opts_str : "", 0); |
c59c7ea9 | 58 | if (!opts) { |
c59c7ea9 MM |
59 | return NULL; |
60 | } | |
61 | ||
62 | qemu_opt_set(opts, "type", "nic"); | |
63 | ||
f6b134ac | 64 | ret = net_client_init(mon, opts, 0); |
eefb4091 | 65 | if (ret < 0) |
6f338c34 | 66 | return NULL; |
5607c388 MA |
67 | if (nd_table[ret].devaddr) { |
68 | monitor_printf(mon, "Parameter addr not supported\n"); | |
69 | return NULL; | |
70 | } | |
1f5f6638 | 71 | return pci_nic_init(&nd_table[ret], "rtl8139", devaddr); |
6f338c34 AL |
72 | } |
73 | ||
6fdb03d5 MA |
74 | static int scsi_hot_add(Monitor *mon, DeviceState *adapter, |
75 | DriveInfo *dinfo, int printinfo) | |
30d335d6 GH |
76 | { |
77 | SCSIBus *scsibus; | |
78 | SCSIDevice *scsidev; | |
79 | ||
80 | scsibus = DO_UPCAST(SCSIBus, qbus, QLIST_FIRST(&adapter->child_bus)); | |
81 | if (!scsibus || strcmp(scsibus->qbus.info->name, "SCSI") != 0) { | |
1ecda02b | 82 | error_report("Device is not a SCSI adapter"); |
30d335d6 GH |
83 | return -1; |
84 | } | |
85 | ||
86 | /* | |
87 | * drive_init() tries to find a default for dinfo->unit. Doesn't | |
88 | * work at all for hotplug though as we assign the device to a | |
89 | * specific bus instead of the first bus with spare scsi ids. | |
90 | * | |
91 | * Ditch the calculated value and reload from option string (if | |
92 | * specified). | |
93 | */ | |
94 | dinfo->unit = qemu_opt_get_number(dinfo->opts, "unit", -1); | |
95 | scsidev = scsi_bus_legacy_add_drive(scsibus, dinfo, dinfo->unit); | |
11f4d7f4 | 96 | dinfo->unit = scsidev->id; |
30d335d6 GH |
97 | |
98 | if (printinfo) | |
6fdb03d5 MA |
99 | monitor_printf(mon, "OK bus %d, unit %d\n", |
100 | scsibus->busnr, scsidev->id); | |
30d335d6 GH |
101 | return 0; |
102 | } | |
103 | ||
f18c16de | 104 | void drive_hot_add(Monitor *mon, const QDict *qdict) |
6f338c34 AL |
105 | { |
106 | int dom, pci_bus; | |
107 | unsigned slot; | |
7f5b7d3e | 108 | int type; |
6f338c34 | 109 | PCIDevice *dev; |
4db49dc0 | 110 | DriveInfo *dinfo = NULL; |
f18c16de LC |
111 | const char *pci_addr = qdict_get_str(qdict, "pci_addr"); |
112 | const char *opts = qdict_get_str(qdict, "opts"); | |
6f338c34 | 113 | |
751c6a17 GH |
114 | dinfo = add_init_drive(opts); |
115 | if (!dinfo) | |
4db49dc0 | 116 | goto err; |
751c6a17 | 117 | if (dinfo->devaddr) { |
c2cc47a4 | 118 | monitor_printf(mon, "Parameter addr not supported\n"); |
4db49dc0 | 119 | goto err; |
c2cc47a4 | 120 | } |
751c6a17 | 121 | type = dinfo->type; |
6f338c34 AL |
122 | |
123 | switch (type) { | |
124 | case IF_SCSI: | |
4db49dc0 GH |
125 | if (pci_read_devaddr(mon, pci_addr, &dom, &pci_bus, &slot)) { |
126 | goto err; | |
127 | } | |
c469e1dd | 128 | dev = pci_find_device(pci_find_root_bus(0), pci_bus, slot, 0); |
4db49dc0 GH |
129 | if (!dev) { |
130 | monitor_printf(mon, "no pci device with address %s\n", pci_addr); | |
131 | goto err; | |
132 | } | |
6fdb03d5 | 133 | if (scsi_hot_add(mon, &dev->qdev, dinfo, 1) != 0) { |
30d335d6 GH |
134 | goto err; |
135 | } | |
6f338c34 | 136 | break; |
7101174e GH |
137 | case IF_NONE: |
138 | monitor_printf(mon, "OK\n"); | |
139 | break; | |
6f338c34 | 140 | default: |
376253ec | 141 | monitor_printf(mon, "Can't hot-add drive to type %d\n", type); |
4db49dc0 | 142 | goto err; |
6f338c34 | 143 | } |
4db49dc0 | 144 | return; |
6f338c34 | 145 | |
4db49dc0 GH |
146 | err: |
147 | if (dinfo) | |
148 | drive_uninit(dinfo); | |
6f338c34 AL |
149 | return; |
150 | } | |
151 | ||
1f5f6638 MA |
152 | static PCIDevice *qemu_pci_hot_add_storage(Monitor *mon, |
153 | const char *devaddr, | |
376253ec | 154 | const char *opts) |
6f338c34 | 155 | { |
1f5f6638 | 156 | PCIDevice *dev; |
06c79f4e | 157 | DriveInfo *dinfo = NULL; |
751c6a17 | 158 | int type = -1; |
6f338c34 | 159 | char buf[128]; |
49bd1458 MA |
160 | PCIBus *bus; |
161 | int devfn; | |
6f338c34 AL |
162 | |
163 | if (get_param_value(buf, sizeof(buf), "if", opts)) { | |
164 | if (!strcmp(buf, "scsi")) | |
165 | type = IF_SCSI; | |
166 | else if (!strcmp(buf, "virtio")) { | |
167 | type = IF_VIRTIO; | |
8707ecca AL |
168 | } else { |
169 | monitor_printf(mon, "type %s not a hotpluggable PCI device.\n", buf); | |
1f5f6638 | 170 | return NULL; |
6f338c34 AL |
171 | } |
172 | } else { | |
376253ec | 173 | monitor_printf(mon, "no if= specified\n"); |
1f5f6638 | 174 | return NULL; |
6f338c34 AL |
175 | } |
176 | ||
177 | if (get_param_value(buf, sizeof(buf), "file", opts)) { | |
751c6a17 GH |
178 | dinfo = add_init_drive(opts); |
179 | if (!dinfo) | |
1f5f6638 | 180 | return NULL; |
751c6a17 | 181 | if (dinfo->devaddr) { |
c2cc47a4 MA |
182 | monitor_printf(mon, "Parameter addr not supported\n"); |
183 | return NULL; | |
184 | } | |
7432ff5d BS |
185 | } else { |
186 | dinfo = NULL; | |
6f338c34 AL |
187 | } |
188 | ||
49bd1458 MA |
189 | bus = pci_get_bus_devfn(&devfn, devaddr); |
190 | if (!bus) { | |
191 | monitor_printf(mon, "Invalid PCI device address %s\n", devaddr); | |
192 | return NULL; | |
193 | } | |
53e0d8af GH |
194 | if (!((BusState*)bus)->allow_hotplug) { |
195 | monitor_printf(mon, "PCI bus doesn't support hotplug\n"); | |
196 | return NULL; | |
197 | } | |
49bd1458 | 198 | |
6f338c34 AL |
199 | switch (type) { |
200 | case IF_SCSI: | |
499cf102 | 201 | dev = pci_create(bus, devfn, "lsi53c895a"); |
5b684b5a GH |
202 | if (qdev_init(&dev->qdev) < 0) |
203 | dev = NULL; | |
ec7efac4 | 204 | if (dev && dinfo) { |
6fdb03d5 | 205 | if (scsi_hot_add(mon, &dev->qdev, dinfo, 0) != 0) { |
30d335d6 GH |
206 | qdev_unplug(&dev->qdev); |
207 | dev = NULL; | |
208 | } | |
5b684b5a | 209 | } |
6f338c34 AL |
210 | break; |
211 | case IF_VIRTIO: | |
7432ff5d BS |
212 | if (!dinfo) { |
213 | monitor_printf(mon, "virtio requires a backing file/device.\n"); | |
214 | return NULL; | |
215 | } | |
499cf102 | 216 | dev = pci_create(bus, devfn, "virtio-blk-pci"); |
d176c495 | 217 | qdev_prop_set_drive(&dev->qdev, "drive", dinfo); |
5b684b5a GH |
218 | if (qdev_init(&dev->qdev) < 0) |
219 | dev = NULL; | |
6f338c34 | 220 | break; |
1f5f6638 MA |
221 | default: |
222 | dev = NULL; | |
6f338c34 | 223 | } |
1f5f6638 | 224 | return dev; |
6f338c34 AL |
225 | } |
226 | ||
7a344f7a LC |
227 | void pci_device_hot_add_print(Monitor *mon, const QObject *data) |
228 | { | |
229 | QDict *qdict; | |
230 | ||
231 | assert(qobject_type(data) == QTYPE_QDICT); | |
232 | qdict = qobject_to_qdict(data); | |
233 | ||
234 | monitor_printf(mon, "OK domain %d, bus %d, slot %d, function %d\n", | |
235 | (int) qdict_get_int(qdict, "domain"), | |
236 | (int) qdict_get_int(qdict, "bus"), | |
237 | (int) qdict_get_int(qdict, "slot"), | |
238 | (int) qdict_get_int(qdict, "function")); | |
239 | ||
240 | } | |
241 | ||
242 | /** | |
243 | * pci_device_hot_add(): Hot add a PCI device | |
244 | * | |
245 | * Return a QDict with the following device information: | |
246 | * | |
247 | * - "domain": domain number | |
248 | * - "bus": bus number | |
249 | * - "slot": slot number | |
250 | * - "function": function number | |
251 | * | |
252 | * Example: | |
253 | * | |
254 | * { "domain": 0, "bus": 0, "slot": 5, "function": 0 } | |
255 | */ | |
395560c8 | 256 | int pci_device_hot_add(Monitor *mon, const QDict *qdict, QObject **ret_data) |
6f338c34 AL |
257 | { |
258 | PCIDevice *dev = NULL; | |
1d4daa91 LC |
259 | const char *pci_addr = qdict_get_str(qdict, "pci_addr"); |
260 | const char *type = qdict_get_str(qdict, "type"); | |
261 | const char *opts = qdict_get_try_str(qdict, "opts"); | |
6f338c34 | 262 | |
e9283f8b JK |
263 | /* strip legacy tag */ |
264 | if (!strncmp(pci_addr, "pci_addr=", 9)) { | |
265 | pci_addr += 9; | |
6f338c34 AL |
266 | } |
267 | ||
a62acdc0 JK |
268 | if (!opts) { |
269 | opts = ""; | |
270 | } | |
271 | ||
e9283f8b JK |
272 | if (!strcmp(pci_addr, "auto")) |
273 | pci_addr = NULL; | |
6f338c34 | 274 | |
395560c8 | 275 | if (strcmp(type, "nic") == 0) { |
e9283f8b | 276 | dev = qemu_pci_hot_add_nic(mon, pci_addr, opts); |
395560c8 | 277 | } else if (strcmp(type, "storage") == 0) { |
e9283f8b | 278 | dev = qemu_pci_hot_add_storage(mon, pci_addr, opts); |
395560c8 | 279 | } else { |
376253ec | 280 | monitor_printf(mon, "invalid type: %s\n", type); |
395560c8 LC |
281 | return -1; |
282 | } | |
6f338c34 AL |
283 | |
284 | if (dev) { | |
7a344f7a LC |
285 | *ret_data = |
286 | qobject_from_jsonf("{ 'domain': 0, 'bus': %d, 'slot': %d, " | |
287 | "'function': %d }", pci_bus_num(dev->bus), | |
288 | PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn)); | |
395560c8 | 289 | } else { |
376253ec | 290 | monitor_printf(mon, "failed to add %s\n", opts); |
395560c8 LC |
291 | return -1; |
292 | } | |
293 | ||
294 | return 0; | |
6f338c34 AL |
295 | } |
296 | #endif | |
297 | ||
053801bc | 298 | int pci_device_hot_remove(Monitor *mon, const char *pci_addr) |
6f338c34 AL |
299 | { |
300 | PCIDevice *d; | |
301 | int dom, bus; | |
302 | unsigned slot; | |
303 | ||
e9283f8b | 304 | if (pci_read_devaddr(mon, pci_addr, &dom, &bus, &slot)) { |
053801bc | 305 | return -1; |
6f338c34 AL |
306 | } |
307 | ||
c469e1dd | 308 | d = pci_find_device(pci_find_root_bus(0), bus, slot, 0); |
6f338c34 | 309 | if (!d) { |
376253ec | 310 | monitor_printf(mon, "slot %d empty\n", slot); |
053801bc | 311 | return -1; |
6f338c34 | 312 | } |
053801bc | 313 | return qdev_unplug(&d->qdev); |
6f338c34 AL |
314 | } |
315 | ||
053801bc LC |
316 | int do_pci_device_hot_remove(Monitor *mon, const QDict *qdict, |
317 | QObject **ret_data) | |
38183186 | 318 | { |
053801bc | 319 | return pci_device_hot_remove(mon, qdict_get_str(qdict, "pci_addr")); |
38183186 | 320 | } |