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scsi: Allow scsi_bus_legacy_add_drive() to set removable bit 

scsi-disk devices may wish to override the removable bit.  Add support
for a qdev property on SCSI devices.  This is will be used by usb-msd.

Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Stefan Hajnoczi 2011-01-24 15:34:59 +00:00 committed by Kevin Wolf
parent 419e691f8e
commit 2d1fd26137
4 changed files with 10 additions and 5 deletions
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2
hw/pci-hotplug.c
View File

@ -90,7 +90,7 @@ static int scsi_hot_add(Monitor *mon, DeviceState *adapter,
* specified).
*/
dinfo->unit = qemu_opt_get_number(dinfo->opts, "unit", -1);
scsidev = scsi_bus_legacy_add_drive(scsibus, dinfo->bdrv, dinfo->unit);
scsidev = scsi_bus_legacy_add_drive(scsibus, dinfo->bdrv, dinfo->unit, false);
if (!scsidev) {
return -1;
}

8
hw/scsi-bus.c
View File

@ -87,7 +87,8 @@ void scsi_qdev_register(SCSIDeviceInfo *info)
}
/* handle legacy '-drive if=scsi,...' cmd line args */
SCSIDevice *scsi_bus_legacy_add_drive(SCSIBus *bus, BlockDriverState *bdrv, int unit)
SCSIDevice *scsi_bus_legacy_add_drive(SCSIBus *bus, BlockDriverState *bdrv,
int unit, bool removable)
{
const char *driver;
DeviceState *dev;
@ -95,6 +96,9 @@ SCSIDevice *scsi_bus_legacy_add_drive(SCSIBus *bus, BlockDriverState *bdrv, int
driver = bdrv_is_sg(bdrv) ? "scsi-generic" : "scsi-disk";
dev = qdev_create(&bus->qbus, driver);
qdev_prop_set_uint32(dev, "scsi-id", unit);
if (qdev_prop_exists(dev, "removable")) {
qdev_prop_set_bit(dev, "removable", removable);
}
if (qdev_prop_set_drive(dev, "drive", bdrv) < 0) {
qdev_free(dev);
return NULL;
@ -117,7 +121,7 @@ int scsi_bus_legacy_handle_cmdline(SCSIBus *bus)
continue;
}
qemu_opts_loc_restore(dinfo->opts);
if (!scsi_bus_legacy_add_drive(bus, dinfo->bdrv, unit)) {
if (!scsi_bus_legacy_add_drive(bus, dinfo->bdrv, unit, false)) {
res = -1;
break;
}

3
hw/scsi.h
View File

@ -94,7 +94,8 @@ static inline SCSIBus *scsi_bus_from_device(SCSIDevice *d)
return DO_UPCAST(SCSIBus, qbus, d->qdev.parent_bus);
}
SCSIDevice *scsi_bus_legacy_add_drive(SCSIBus *bus, BlockDriverState *bdrv, int unit);
SCSIDevice *scsi_bus_legacy_add_drive(SCSIBus *bus, BlockDriverState *bdrv,
int unit, bool removable);
int scsi_bus_legacy_handle_cmdline(SCSIBus *bus);
SCSIRequest *scsi_req_alloc(size_t size, SCSIDevice *d, uint32_t tag, uint32_t lun);

2
hw/usb-msd.c
View File

@ -515,7 +515,7 @@ static int usb_msd_initfn(USBDevice *dev)
usb_desc_init(dev);
scsi_bus_new(&s->bus, &s->dev.qdev, 0, 1, usb_msd_command_complete);
s->scsi_dev = scsi_bus_legacy_add_drive(&s->bus, bs, 0);
s->scsi_dev = scsi_bus_legacy_add_drive(&s->bus, bs, 0, false);
if (!s->scsi_dev) {
return -1;
}