int pci_drive_hot_add(Monitor *mon, const QDict *qdict,
DriveInfo *dinfo, int type)
{
int dom, pci_bus;
unsigned slot;
PCIDevice *dev;
const char *pci_addr = qdict_get_str(qdict, "pci_addr");
switch (type) {
case IF_SCSI:
if (pci_read_devaddr(mon, pci_addr, &dom, &pci_bus, &slot)) {
goto err;
}
dev = pci_find_device(pci_find_root_bus(dom), pci_bus,
PCI_DEVFN(slot, 0));
if (!dev) {
monitor_printf(mon, "no pci device with address %s\n", pci_addr);
goto err;
}
if (scsi_hot_add(mon, &dev->qdev, dinfo, 1) != 0) {
goto err;
}
break;
default:
monitor_printf(mon, "Can't hot-add drive to type %d\n", type);
goto err;
}
return 0;
err:
return -1;
}
void drive_hot_add(Monitor *mon, const QDict *qdict)
{
int dom, pci_bus;
unsigned slot;
int type, bus;
PCIDevice *dev;
DriveInfo *dinfo = NULL;
const char *pci_addr = qdict_get_str(qdict, "pci_addr");
const char *opts = qdict_get_str(qdict, "opts");
dinfo = add_init_drive(opts);
if (!dinfo)
goto err;
if (dinfo->devaddr) {
monitor_printf(mon, "Parameter addr not supported\n");
goto err;
}
type = dinfo->type;
bus = drive_get_max_bus (type);
switch (type) {
case IF_SCSI:
if (pci_read_devaddr(mon, pci_addr, &dom, &pci_bus, &slot)) {
goto err;
}
dev = pci_find_device(pci_find_host_bus(0), pci_bus, slot, 0);
if (!dev) {
monitor_printf(mon, "no pci device with address %s\n", pci_addr);
goto err;
}
if (scsi_hot_add(&dev->qdev, dinfo, 1) != 0) {
goto err;
}
break;
case IF_NONE:
monitor_printf(mon, "OK\n");
break;
default:
monitor_printf(mon, "Can't hot-add drive to type %d\n", type);
goto err;
}
return;
err:
if (dinfo)
drive_uninit(dinfo);
return;
}
int pci_drive_hot_add(Monitor *mon, const QDict *qdict, DriveInfo *dinfo)
{
int pci_bus;
unsigned slot;
PCIBus *root = pci_find_primary_bus();
PCIDevice *dev;
const char *pci_addr = qdict_get_str(qdict, "pci_addr");
switch (dinfo->type) {
case IF_SCSI:
if (!root) {
monitor_printf(mon, "no primary PCI bus (if there are multiple"
" PCI roots, you must use device_add instead)");
goto err;
}
if (pci_read_devaddr(mon, pci_addr, &pci_bus, &slot)) {
goto err;
}
dev = pci_find_device(root, pci_bus, PCI_DEVFN(slot, 0));
if (!dev) {
monitor_printf(mon, "no pci device with address %s\n", pci_addr);
goto err;
}
if (scsi_hot_add(mon, &dev->qdev, dinfo, 1) != 0) {
goto err;
}
break;
default:
monitor_printf(mon, "Can't hot-add drive to type %d\n", dinfo->type);
goto err;
}
return 0;
err:
return -1;
}
static PCIDevice *qemu_pci_hot_add_storage(Monitor *mon,
const char *devaddr,
const char *opts)
{
PCIDevice *dev;
DriveInfo *dinfo = NULL;
int type = -1;
char buf[128];
PCIBus *bus;
int devfn;
if (get_param_value(buf, sizeof(buf), "if", opts)) {
if (!strcmp(buf, "scsi"))
type = IF_SCSI;
else if (!strcmp(buf, "virtio")) {
type = IF_VIRTIO;
} else {
monitor_printf(mon, "type %s not a hotpluggable PCI device.\n", buf);
return NULL;
}
} else {
monitor_printf(mon, "no if= specified\n");
return NULL;
}
if (get_param_value(buf, sizeof(buf), "file", opts)) {
dinfo = add_init_drive(opts);
if (!dinfo)
return NULL;
if (dinfo->devaddr) {
monitor_printf(mon, "Parameter addr not supported\n");
return NULL;
}
} else {
dinfo = NULL;
}
bus = pci_get_bus_devfn(&devfn, devaddr);
if (!bus) {
monitor_printf(mon, "Invalid PCI device address %s\n", devaddr);
return NULL;
}
if (!((BusState*)bus)->allow_hotplug) {
monitor_printf(mon, "PCI bus doesn't support hotplug\n");
return NULL;
}
switch (type) {
case IF_SCSI:
dev = pci_create(bus, devfn, "lsi53c895a");
if (qdev_init(&dev->qdev) < 0)
dev = NULL;
if (dev && dinfo) {
if (scsi_hot_add(mon, &dev->qdev, dinfo, 0) != 0) {
qdev_unplug(&dev->qdev, NULL);
dev = NULL;
}
}
break;
case IF_VIRTIO:
if (!dinfo) {
monitor_printf(mon, "virtio requires a backing file/device.\n");
return NULL;
}
dev = pci_create(bus, devfn, "virtio-blk-pci");
if (qdev_prop_set_drive(&dev->qdev, "drive", dinfo->bdrv) < 0) {
qdev_free(&dev->qdev);
dev = NULL;
break;
}
if (qdev_init(&dev->qdev) < 0)
dev = NULL;
break;
default:
dev = NULL;
}
return dev;
}
static PCIDevice *qemu_pci_hot_add_storage(Monitor *mon,
const char *devaddr,
const char *opts)
{
PCIDevice *dev;
DriveInfo *dinfo = NULL;
int type = -1;
char buf[128];
PCIBus *root = pci_find_primary_bus();
PCIBus *bus;
int devfn;
if (get_param_value(buf, sizeof(buf), "if", opts)) {
if (!strcmp(buf, "scsi"))
type = IF_SCSI;
else if (!strcmp(buf, "virtio")) {
type = IF_VIRTIO;
} else {
monitor_printf(mon, "type %s not a hotpluggable PCI device.\n", buf);
return NULL;
}
} else {
monitor_printf(mon, "no if= specified\n");
return NULL;
}
if (get_param_value(buf, sizeof(buf), "file", opts)) {
dinfo = add_init_drive(opts);
if (!dinfo)
return NULL;
if (dinfo->devaddr) {
monitor_printf(mon, "Parameter addr not supported\n");
return NULL;
}
} else {
dinfo = NULL;
}
if (!root) {
monitor_printf(mon, "no primary PCI bus (if there are multiple"
" PCI roots, you must use device_add instead)");
return NULL;
}
bus = pci_get_bus_devfn(&devfn, root, devaddr);
if (!bus) {
monitor_printf(mon, "Invalid PCI device address %s\n", devaddr);
return NULL;
}
if (!qbus_is_hotpluggable(BUS(bus))) {
monitor_printf(mon, "PCI bus doesn't support hotplug\n");
return NULL;
}
switch (type) {
case IF_SCSI:
dev = pci_create(bus, devfn, "lsi53c895a");
if (qdev_init(&dev->qdev) < 0)
dev = NULL;
if (dev && dinfo) {
if (scsi_hot_add(mon, &dev->qdev, dinfo, 0) != 0) {
qdev_unplug(&dev->qdev, NULL);
dev = NULL;
}
}
break;
case IF_VIRTIO:
if (!dinfo) {
monitor_printf(mon, "virtio requires a backing file/device.\n");
return NULL;
}
dev = pci_create(bus, devfn, "virtio-blk-pci");
if (qdev_prop_set_drive(&dev->qdev, "drive",
blk_by_legacy_dinfo(dinfo)) < 0) {
object_unparent(OBJECT(dev));
dev = NULL;
break;
}
if (qdev_init(&dev->qdev) < 0)
dev = NULL;
break;
default:
dev = NULL;
}
return dev;
}
