diff options
Diffstat (limited to 'hw/block')
| -rw-r--r-- | hw/block/m25p80.c | 5 | ||||
| -rw-r--r-- | hw/block/xen_disk.c | 5 |
2 files changed, 10 insertions, 0 deletions
diff --git a/hw/block/m25p80.c b/hw/block/m25p80.c index 8c3b7f0..02a1544 100644 --- a/hw/block/m25p80.c +++ b/hw/block/m25p80.c @@ -624,6 +624,11 @@ static int m25p80_init(SSISlave *ss) if (dinfo && dinfo->bdrv) { DB_PRINT_L(0, "Binding to IF_MTD drive\n"); s->bdrv = dinfo->bdrv; + if (bdrv_is_read_only(s->bdrv)) { + fprintf(stderr, "Can't use a read-only drive"); + return 1; + } + /* FIXME: Move to late init */ if (bdrv_read(s->bdrv, 0, s->storage, DIV_ROUND_UP(s->size, BDRV_SECTOR_SIZE))) { diff --git a/hw/block/xen_disk.c b/hw/block/xen_disk.c index 8742294..098f6c6 100644 --- a/hw/block/xen_disk.c +++ b/hw/block/xen_disk.c @@ -830,6 +830,11 @@ static int blk_connect(struct XenDevice *xendev) /* setup via qemu cmdline -> already setup for us */ xen_be_printf(&blkdev->xendev, 2, "get configured bdrv (cmdline setup)\n"); blkdev->bs = blkdev->dinfo->bdrv; + if (bdrv_is_read_only(blkdev->bs) && !readonly) { + xen_be_printf(&blkdev->xendev, 0, "Unexpected read-only drive"); + blkdev->bs = NULL; + return -1; + } /* blkdev->bs is not create by us, we get a reference * so we can bdrv_unref() unconditionally */ bdrv_ref(blkdev->bs); |