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read-only: allow read-only CDROM with any interface 

Signed-off-by: Naphtali Sprei <nsprei@redhat.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
This commit is contained in:
Naphtali Sprei 2010-03-23 12:17:16 +02:00 committed by Aurelien Jarno
parent f7c11b5350
commit 2db7ad59fc
1 changed files with 5 additions and 8 deletions
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13
vl.c
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@ -1185,19 +1185,16 @@ DriveInfo *drive_init(QemuOpts *opts, void *opaque,
bdrv_flags &= ~BDRV_O_NATIVE_AIO;
}
if (ro == 1) {
if (media == MEDIA_CDROM) {
/* CDROM is fine for any interface, don't check. */
ro = 1;
} else if (ro == 1) {
if (type != IF_SCSI && type != IF_VIRTIO && type != IF_FLOPPY) {
fprintf(stderr, "qemu: readonly flag not supported for drive with this interface\n");
return NULL;
}
}
/*
* cdrom is read-only. Set it now, after above interface checking
* since readonly attribute not explicitly required, so no error.
*/
if (media == MEDIA_CDROM) {
ro = 1;
}
bdrv_flags |= ro ? 0 : BDRV_O_RDWR;
if (bdrv_open2(dinfo->bdrv, file, bdrv_flags, drv) < 0) {