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"
35 #include "qemu-config.h"
37 #if defined(TARGET_I386)
38 static PCIDevice *qemu_pci_hot_add_nic(Monitor *mon,
45 opts = qemu_opts_parse(&qemu_net_opts, opts_str ? opts_str : "", NULL);
47 monitor_printf(mon, "parsing network options '%s' failed\n",
48 opts_str ? opts_str : "");
52 qemu_opt_set(opts, "type", "nic");
54 ret = net_client_init(mon, opts, 0);
57 if (nd_table[ret].devaddr) {
58 monitor_printf(mon, "Parameter addr not supported\n");
61 return pci_nic_init(&nd_table[ret], "rtl8139", devaddr);
64 void drive_hot_add(Monitor *mon, const QDict *qdict)
70 DriveInfo *dinfo = NULL;
71 const char *pci_addr = qdict_get_str(qdict, "pci_addr");
72 const char *opts = qdict_get_str(qdict, "opts");
75 dinfo = add_init_drive(opts);
79 monitor_printf(mon, "Parameter addr not supported\n");
83 bus = drive_get_max_bus (type);
87 if (pci_read_devaddr(mon, pci_addr, &dom, &pci_bus, &slot)) {
90 dev = pci_find_device(pci_bus, slot, 0);
92 monitor_printf(mon, "no pci device with address %s\n", pci_addr);
95 scsibus = QLIST_FIRST(&dev->qdev.child_bus);
96 scsi_bus_legacy_add_drive(DO_UPCAST(SCSIBus, qbus, scsibus),
98 monitor_printf(mon, "OK bus %d, unit %d\n",
103 monitor_printf(mon, "OK\n");
106 monitor_printf(mon, "Can't hot-add drive to type %d\n", type);
117 static PCIDevice *qemu_pci_hot_add_storage(Monitor *mon,
122 DriveInfo *dinfo = NULL;
128 if (get_param_value(buf, sizeof(buf), "if", opts)) {
129 if (!strcmp(buf, "scsi"))
131 else if (!strcmp(buf, "virtio")) {
134 monitor_printf(mon, "type %s not a hotpluggable PCI device.\n", buf);
138 monitor_printf(mon, "no if= specified\n");
142 if (get_param_value(buf, sizeof(buf), "file", opts)) {
143 dinfo = add_init_drive(opts);
146 if (dinfo->devaddr) {
147 monitor_printf(mon, "Parameter addr not supported\n");
154 bus = pci_get_bus_devfn(&devfn, devaddr);
156 monitor_printf(mon, "Invalid PCI device address %s\n", devaddr);
162 dev = pci_create(bus, devfn, "lsi53c895a");
166 monitor_printf(mon, "virtio requires a backing file/device.\n");
169 dev = pci_create(bus, devfn, "virtio-blk-pci");
170 qdev_prop_set_drive(&dev->qdev, "drive", dinfo);
175 if (!dev || qdev_init(&dev->qdev) < 0)
180 void pci_device_hot_add(Monitor *mon, const QDict *qdict)
182 PCIDevice *dev = NULL;
183 const char *pci_addr = qdict_get_str(qdict, "pci_addr");
184 const char *type = qdict_get_str(qdict, "type");
185 const char *opts = qdict_get_try_str(qdict, "opts");
187 /* strip legacy tag */
188 if (!strncmp(pci_addr, "pci_addr=", 9)) {
196 if (!strcmp(pci_addr, "auto"))
199 if (strcmp(type, "nic") == 0)
200 dev = qemu_pci_hot_add_nic(mon, pci_addr, opts);
201 else if (strcmp(type, "storage") == 0)
202 dev = qemu_pci_hot_add_storage(mon, pci_addr, opts);
204 monitor_printf(mon, "invalid type: %s\n", type);
207 monitor_printf(mon, "OK domain %d, bus %d, slot %d, function %d\n",
208 0, pci_bus_num(dev->bus), PCI_SLOT(dev->devfn),
209 PCI_FUNC(dev->devfn));
211 monitor_printf(mon, "failed to add %s\n", opts);
215 void pci_device_hot_remove(Monitor *mon, const char *pci_addr)
221 if (pci_read_devaddr(mon, pci_addr, &dom, &bus, &slot)) {
225 d = pci_find_device(bus, slot, 0);
227 monitor_printf(mon, "slot %d empty\n", slot);
230 qdev_unplug(&d->qdev);
233 void do_pci_device_hot_remove(Monitor *mon, const QDict *qdict)
235 pci_device_hot_remove(mon, qdict_get_str(qdict, "pci_addr"));