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ide scsi virtio-blk: Reject empty drives unless media is removable 

Disks without media make no sense.  For SCSI, a Linux guest kernel
complains during boot.  I didn't try other combinations.

scsi-generic doesn't need the additional check, because it already
requires bdrv_is_sg(), which fails without media.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Markus Armbruster 2010-07-06 14:37:44 +02:00 committed by Kevin Wolf
parent d75d25e34e
commit 98f28ad7a7
3 changed files with 13 additions and 0 deletions
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4
hw/ide/core.c
View File

@ -2630,6 +2630,10 @@ int ide_init_drive(IDEState *s, BlockDriverState *bs,
s->drive_kind = IDE_CD;
bdrv_set_change_cb(bs, cdrom_change_cb, s);
} else {
if (!bdrv_is_inserted(s->bs)) {
error_report("Device needs media, but drive is empty");
return -1;
}
if (bdrv_is_read_only(bs)) {
error_report("Can't use a read-only drive");
return -1;

5
hw/scsi-disk.c
View File

@ -1059,6 +1059,11 @@ static int scsi_disk_initfn(SCSIDevice *dev)
s->bs = s->qdev.conf.bs;
is_cd = bdrv_get_type_hint(s->bs) == BDRV_TYPE_CDROM;
if (!is_cd && !bdrv_is_inserted(s->bs)) {
error_report("Device needs media, but drive is empty");
return -1;
}
if (bdrv_get_on_error(s->bs, 1) != BLOCK_ERR_REPORT) {
error_report("Device doesn't support drive option rerror");
return -1;

4
hw/virtio-blk.c
View File

@ -495,6 +495,10 @@ VirtIODevice *virtio_blk_init(DeviceState *dev, BlockConf *conf)
error_report("virtio-blk-pci: drive property not set");
return NULL;
}
if (!bdrv_is_inserted(conf->bs)) {
error_report("Device needs media, but drive is empty");
return NULL;
}
s = (VirtIOBlock *)virtio_common_init("virtio-blk", VIRTIO_ID_BLOCK,
sizeof(struct virtio_blk_config),