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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" |
d52affa7 | 33 | #include "scsi-disk.h" |
6f338c34 AL |
34 | #include "virtio-blk.h" |
35 | ||
36 | #if defined(TARGET_I386) || defined(TARGET_X86_64) | |
1f5f6638 MA |
37 | static PCIDevice *qemu_pci_hot_add_nic(Monitor *mon, |
38 | const char *devaddr, const char *opts) | |
6f338c34 AL |
39 | { |
40 | int ret; | |
41 | ||
10ae5a7a | 42 | ret = net_client_init(mon, "nic", opts); |
eefb4091 | 43 | if (ret < 0) |
6f338c34 | 44 | return NULL; |
5607c388 MA |
45 | if (nd_table[ret].devaddr) { |
46 | monitor_printf(mon, "Parameter addr not supported\n"); | |
47 | return NULL; | |
48 | } | |
0148fde5 LC |
49 | |
50 | if (nd_table[ret].model && !pci_nic_supported(nd_table[ret].model)) | |
51 | return NULL; | |
52 | ||
1f5f6638 | 53 | return pci_nic_init(&nd_table[ret], "rtl8139", devaddr); |
6f338c34 AL |
54 | } |
55 | ||
f18c16de | 56 | void drive_hot_add(Monitor *mon, const QDict *qdict) |
6f338c34 AL |
57 | { |
58 | int dom, pci_bus; | |
59 | unsigned slot; | |
751c6a17 | 60 | int type, bus; |
6f338c34 | 61 | PCIDevice *dev; |
4db49dc0 | 62 | DriveInfo *dinfo = NULL; |
f18c16de LC |
63 | const char *pci_addr = qdict_get_str(qdict, "pci_addr"); |
64 | const char *opts = qdict_get_str(qdict, "opts"); | |
d52affa7 | 65 | BusState *scsibus; |
6f338c34 | 66 | |
751c6a17 GH |
67 | dinfo = add_init_drive(opts); |
68 | if (!dinfo) | |
4db49dc0 | 69 | goto err; |
751c6a17 | 70 | if (dinfo->devaddr) { |
c2cc47a4 | 71 | monitor_printf(mon, "Parameter addr not supported\n"); |
4db49dc0 | 72 | goto err; |
c2cc47a4 | 73 | } |
751c6a17 | 74 | type = dinfo->type; |
6f338c34 AL |
75 | bus = drive_get_max_bus (type); |
76 | ||
77 | switch (type) { | |
78 | case IF_SCSI: | |
4db49dc0 GH |
79 | if (pci_read_devaddr(mon, pci_addr, &dom, &pci_bus, &slot)) { |
80 | goto err; | |
81 | } | |
82 | dev = pci_find_device(pci_bus, slot, 0); | |
83 | if (!dev) { | |
84 | monitor_printf(mon, "no pci device with address %s\n", pci_addr); | |
85 | goto err; | |
86 | } | |
72cf2d4f | 87 | scsibus = QLIST_FIRST(&dev->qdev.child_bus); |
d52affa7 GH |
88 | scsi_bus_legacy_add_drive(DO_UPCAST(SCSIBus, qbus, scsibus), |
89 | dinfo, dinfo->unit); | |
4db49dc0 GH |
90 | monitor_printf(mon, "OK bus %d, unit %d\n", |
91 | dinfo->bus, | |
92 | dinfo->unit); | |
6f338c34 | 93 | break; |
7101174e GH |
94 | case IF_NONE: |
95 | monitor_printf(mon, "OK\n"); | |
96 | break; | |
6f338c34 | 97 | default: |
376253ec | 98 | monitor_printf(mon, "Can't hot-add drive to type %d\n", type); |
4db49dc0 | 99 | goto err; |
6f338c34 | 100 | } |
4db49dc0 | 101 | return; |
6f338c34 | 102 | |
4db49dc0 GH |
103 | err: |
104 | if (dinfo) | |
105 | drive_uninit(dinfo); | |
6f338c34 AL |
106 | return; |
107 | } | |
108 | ||
1f5f6638 MA |
109 | static PCIDevice *qemu_pci_hot_add_storage(Monitor *mon, |
110 | const char *devaddr, | |
376253ec | 111 | const char *opts) |
6f338c34 | 112 | { |
1f5f6638 | 113 | PCIDevice *dev; |
06c79f4e | 114 | DriveInfo *dinfo = NULL; |
751c6a17 | 115 | int type = -1; |
6f338c34 | 116 | char buf[128]; |
49bd1458 MA |
117 | PCIBus *bus; |
118 | int devfn; | |
6f338c34 AL |
119 | |
120 | if (get_param_value(buf, sizeof(buf), "if", opts)) { | |
121 | if (!strcmp(buf, "scsi")) | |
122 | type = IF_SCSI; | |
123 | else if (!strcmp(buf, "virtio")) { | |
124 | type = IF_VIRTIO; | |
8707ecca AL |
125 | } else { |
126 | monitor_printf(mon, "type %s not a hotpluggable PCI device.\n", buf); | |
1f5f6638 | 127 | return NULL; |
6f338c34 AL |
128 | } |
129 | } else { | |
376253ec | 130 | monitor_printf(mon, "no if= specified\n"); |
1f5f6638 | 131 | return NULL; |
6f338c34 AL |
132 | } |
133 | ||
134 | if (get_param_value(buf, sizeof(buf), "file", opts)) { | |
751c6a17 GH |
135 | dinfo = add_init_drive(opts); |
136 | if (!dinfo) | |
1f5f6638 | 137 | return NULL; |
751c6a17 | 138 | if (dinfo->devaddr) { |
c2cc47a4 MA |
139 | monitor_printf(mon, "Parameter addr not supported\n"); |
140 | return NULL; | |
141 | } | |
7432ff5d BS |
142 | } else { |
143 | dinfo = NULL; | |
6f338c34 AL |
144 | } |
145 | ||
49bd1458 MA |
146 | bus = pci_get_bus_devfn(&devfn, devaddr); |
147 | if (!bus) { | |
148 | monitor_printf(mon, "Invalid PCI device address %s\n", devaddr); | |
149 | return NULL; | |
150 | } | |
151 | ||
6f338c34 AL |
152 | switch (type) { |
153 | case IF_SCSI: | |
49bd1458 | 154 | dev = pci_create_noinit(bus, devfn, "lsi53c895a"); |
6f338c34 AL |
155 | break; |
156 | case IF_VIRTIO: | |
7432ff5d BS |
157 | if (!dinfo) { |
158 | monitor_printf(mon, "virtio requires a backing file/device.\n"); | |
159 | return NULL; | |
160 | } | |
49bd1458 | 161 | dev = pci_create_noinit(bus, devfn, "virtio-blk-pci"); |
d176c495 | 162 | qdev_prop_set_drive(&dev->qdev, "drive", dinfo); |
6f338c34 | 163 | break; |
1f5f6638 MA |
164 | default: |
165 | dev = NULL; | |
6f338c34 | 166 | } |
1f5f6638 MA |
167 | if (dev) |
168 | qdev_init(&dev->qdev); | |
169 | return dev; | |
6f338c34 AL |
170 | } |
171 | ||
1d4daa91 | 172 | void pci_device_hot_add(Monitor *mon, const QDict *qdict) |
6f338c34 AL |
173 | { |
174 | PCIDevice *dev = NULL; | |
1d4daa91 LC |
175 | const char *pci_addr = qdict_get_str(qdict, "pci_addr"); |
176 | const char *type = qdict_get_str(qdict, "type"); | |
177 | const char *opts = qdict_get_try_str(qdict, "opts"); | |
6f338c34 | 178 | |
e9283f8b JK |
179 | /* strip legacy tag */ |
180 | if (!strncmp(pci_addr, "pci_addr=", 9)) { | |
181 | pci_addr += 9; | |
6f338c34 AL |
182 | } |
183 | ||
a62acdc0 JK |
184 | if (!opts) { |
185 | opts = ""; | |
186 | } | |
187 | ||
e9283f8b JK |
188 | if (!strcmp(pci_addr, "auto")) |
189 | pci_addr = NULL; | |
6f338c34 AL |
190 | |
191 | if (strcmp(type, "nic") == 0) | |
e9283f8b | 192 | dev = qemu_pci_hot_add_nic(mon, pci_addr, opts); |
6f338c34 | 193 | else if (strcmp(type, "storage") == 0) |
e9283f8b | 194 | dev = qemu_pci_hot_add_storage(mon, pci_addr, opts); |
6f338c34 | 195 | else |
376253ec | 196 | monitor_printf(mon, "invalid type: %s\n", type); |
6f338c34 AL |
197 | |
198 | if (dev) { | |
376253ec AL |
199 | monitor_printf(mon, "OK domain %d, bus %d, slot %d, function %d\n", |
200 | 0, pci_bus_num(dev->bus), PCI_SLOT(dev->devfn), | |
201 | PCI_FUNC(dev->devfn)); | |
6f338c34 | 202 | } else |
376253ec | 203 | monitor_printf(mon, "failed to add %s\n", opts); |
6f338c34 AL |
204 | } |
205 | #endif | |
206 | ||
376253ec | 207 | void pci_device_hot_remove(Monitor *mon, const char *pci_addr) |
6f338c34 AL |
208 | { |
209 | PCIDevice *d; | |
210 | int dom, bus; | |
211 | unsigned slot; | |
212 | ||
e9283f8b | 213 | if (pci_read_devaddr(mon, pci_addr, &dom, &bus, &slot)) { |
6f338c34 AL |
214 | return; |
215 | } | |
216 | ||
217 | d = pci_find_device(bus, slot, 0); | |
218 | if (!d) { | |
376253ec | 219 | monitor_printf(mon, "slot %d empty\n", slot); |
6f338c34 AL |
220 | return; |
221 | } | |
3f84865a | 222 | qdev_unplug(&d->qdev); |
6f338c34 AL |
223 | } |
224 | ||
d54908a5 | 225 | void do_pci_device_hot_remove(Monitor *mon, const QDict *qdict) |
38183186 | 226 | { |
d54908a5 | 227 | pci_device_hot_remove(mon, qdict_get_str(qdict, "pci_addr")); |
38183186 LC |
228 | } |
229 | ||
6f338c34 AL |
230 | static int pci_match_fn(void *dev_private, void *arg) |
231 | { | |
232 | PCIDevice *dev = dev_private; | |
233 | PCIDevice *match = arg; | |
234 | ||
235 | return (dev == match); | |
236 | } | |
237 | ||
238 | /* | |
239 | * OS has executed _EJ0 method, we now can remove the device | |
240 | */ | |
3f84865a | 241 | void pci_device_hot_remove_success(PCIDevice *d) |
6f338c34 | 242 | { |
6f338c34 AL |
243 | int class_code; |
244 | ||
6f338c34 AL |
245 | class_code = d->config_read(d, PCI_CLASS_DEVICE+1, 1); |
246 | ||
247 | switch(class_code) { | |
6f338c34 AL |
248 | case PCI_BASE_CLASS_NETWORK: |
249 | destroy_nic(pci_match_fn, d); | |
250 | break; | |
251 | } | |
6f338c34 AL |
252 | } |
253 |