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authorMarkus Armbruster <armbru@redhat.com>2010-07-06 14:37:44 +0200
committerKevin Wolf <kwolf@redhat.com>2010-07-13 17:48:17 +0200
commit98f28ad7a7d26e5e77c5cb37b262d76d6ccd963d (patch)
treea17198bf6887562708d62a0cf13b17777645cd67 /hw
parentd75d25e34e4b4eb6a18122b5fa3baac70cea0f2b (diff)
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>
Diffstat (limited to 'hw')
-rw-r--r--hw/ide/core.c4
-rw-r--r--hw/scsi-disk.c5
-rw-r--r--hw/virtio-blk.c4
3 files changed, 13 insertions, 0 deletions
diff --git a/hw/ide/core.c b/hw/ide/core.c
index af52c2cb2d..e20f2e7cbb 100644
--- a/hw/ide/core.c
+++ b/hw/ide/core.c
@@ -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;
diff --git a/hw/scsi-disk.c b/hw/scsi-disk.c
index c30709c550..f43f2d097c 100644
--- a/hw/scsi-disk.c
+++ b/hw/scsi-disk.c
@@ -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;
diff --git a/hw/virtio-blk.c b/hw/virtio-blk.c
index 99e9dd294b..f50069d20b 100644
--- a/hw/virtio-blk.c
+++ b/hw/virtio-blk.c
@@ -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),