2 * QEMU PCI hotplug support
4 * Copyright (c) 2004 Fabrice Bellard
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:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
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
32 #include "block_int.h"
33 #include "scsi-disk.h"
34 #include "virtio-blk.h"
36 #if defined(TARGET_I386) || defined(TARGET_X86_64)
37 static PCIDevice
*qemu_pci_hot_add_nic(Monitor
*mon
,
38 const char *devaddr
, const char *opts
)
42 ret
= net_client_init(mon
, "nic", opts
);
45 if (nd_table
[ret
].devaddr
) {
46 monitor_printf(mon
, "Parameter addr not supported\n");
50 if (nd_table
[ret
].model
&& !pci_nic_supported(nd_table
[ret
].model
))
53 return pci_nic_init(&nd_table
[ret
], "rtl8139", devaddr
);
56 void drive_hot_add(Monitor
*mon
, const QDict
*qdict
)
62 DriveInfo
*dinfo
= NULL
;
63 const char *pci_addr
= qdict_get_str(qdict
, "pci_addr");
64 const char *opts
= qdict_get_str(qdict
, "opts");
67 dinfo
= add_init_drive(opts
);
71 monitor_printf(mon
, "Parameter addr not supported\n");
75 bus
= drive_get_max_bus (type
);
79 if (pci_read_devaddr(mon
, pci_addr
, &dom
, &pci_bus
, &slot
)) {
82 dev
= pci_find_device(pci_bus
, slot
, 0);
84 monitor_printf(mon
, "no pci device with address %s\n", pci_addr
);
87 scsibus
= QLIST_FIRST(&dev
->qdev
.child_bus
);
88 scsi_bus_legacy_add_drive(DO_UPCAST(SCSIBus
, qbus
, scsibus
),
90 monitor_printf(mon
, "OK bus %d, unit %d\n",
95 monitor_printf(mon
, "OK\n");
98 monitor_printf(mon
, "Can't hot-add drive to type %d\n", type
);
109 static PCIDevice
*qemu_pci_hot_add_storage(Monitor
*mon
,
114 DriveInfo
*dinfo
= NULL
;
118 if (get_param_value(buf
, sizeof(buf
), "if", opts
)) {
119 if (!strcmp(buf
, "scsi"))
121 else if (!strcmp(buf
, "virtio")) {
124 monitor_printf(mon
, "type %s not a hotpluggable PCI device.\n", buf
);
128 monitor_printf(mon
, "no if= specified\n");
132 if (get_param_value(buf
, sizeof(buf
), "file", opts
)) {
133 dinfo
= add_init_drive(opts
);
136 if (dinfo
->devaddr
) {
137 monitor_printf(mon
, "Parameter addr not supported\n");
146 dev
= pci_create("lsi53c895a", devaddr
);
150 monitor_printf(mon
, "virtio requires a backing file/device.\n");
153 dev
= pci_create("virtio-blk-pci", devaddr
);
154 qdev_prop_set_drive(&dev
->qdev
, "drive", dinfo
);
160 qdev_init(&dev
->qdev
);
164 void pci_device_hot_add(Monitor
*mon
, const QDict
*qdict
)
166 PCIDevice
*dev
= NULL
;
167 const char *pci_addr
= qdict_get_str(qdict
, "pci_addr");
168 const char *type
= qdict_get_str(qdict
, "type");
169 const char *opts
= qdict_get_try_str(qdict
, "opts");
171 /* strip legacy tag */
172 if (!strncmp(pci_addr
, "pci_addr=", 9)) {
180 if (!strcmp(pci_addr
, "auto"))
183 if (strcmp(type
, "nic") == 0)
184 dev
= qemu_pci_hot_add_nic(mon
, pci_addr
, opts
);
185 else if (strcmp(type
, "storage") == 0)
186 dev
= qemu_pci_hot_add_storage(mon
, pci_addr
, opts
);
188 monitor_printf(mon
, "invalid type: %s\n", type
);
191 monitor_printf(mon
, "OK domain %d, bus %d, slot %d, function %d\n",
192 0, pci_bus_num(dev
->bus
), PCI_SLOT(dev
->devfn
),
193 PCI_FUNC(dev
->devfn
));
195 monitor_printf(mon
, "failed to add %s\n", opts
);
199 void pci_device_hot_remove(Monitor
*mon
, const char *pci_addr
)
205 if (pci_read_devaddr(mon
, pci_addr
, &dom
, &bus
, &slot
)) {
209 d
= pci_find_device(bus
, slot
, 0);
211 monitor_printf(mon
, "slot %d empty\n", slot
);
214 qdev_unplug(&d
->qdev
);
217 void do_pci_device_hot_remove(Monitor
*mon
, const QDict
*qdict
)
219 pci_device_hot_remove(mon
, qdict_get_str(qdict
, "pci_addr"));
222 static int pci_match_fn(void *dev_private
, void *arg
)
224 PCIDevice
*dev
= dev_private
;
225 PCIDevice
*match
= arg
;
227 return (dev
== match
);
231 * OS has executed _EJ0 method, we now can remove the device
233 void pci_device_hot_remove_success(PCIDevice
*d
)
237 class_code
= d
->config_read(d
, PCI_CLASS_DEVICE
+1, 1);
240 case PCI_BASE_CLASS_NETWORK
:
241 destroy_nic(pci_match_fn
, d
);