From 98f28ad7a7d26e5e77c5cb37b262d76d6ccd963d Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Tue, 6 Jul 2010 14:37:44 +0200 Subject: [PATCH] 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 Signed-off-by: Kevin Wolf --- hw/ide/core.c | 4 ++++ hw/scsi-disk.c | 5 +++++ hw/virtio-blk.c | 4 ++++ 3 files changed, 13 insertions(+) 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), -- 2.11.0