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