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| author | Kevin Wolf <kwolf@redhat.com> | 2018-10-17 18:24:30 +0200 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2018-11-05 15:09:55 +0100 |
| commit | 9384a444f6ebcd66bba0ae3c8434120d03c8dfea (patch) | |
| tree | 9e54a99750e7c647dcf16aae33668ed64aa23eea /blockdev.c | |
| parent | 8f3bf50d340372662a35564c669e567c6c846943 (diff) | |
| download | qemu-9384a444f6ebcd66bba0ae3c8434120d03c8dfea.zip | |
block: Make auto-read-only=on default for -drive
While we want machine interfaces like -blockdev and QMP blockdev-add to
add as little auto-detection as possible so that management tools are
explicit about their needs, -drive is a convenience option for human
users. Enabling auto-read-only=on by default there enables users to use
read-only images for read-only guest devices without having to specify
read-only=on explicitly. If they try to attach the image to a read-write
device, they will still get an error message.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Diffstat (limited to 'blockdev.c')
| -rw-r--r-- | blockdev.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/blockdev.c b/blockdev.c index fc8794862f..e5b5eb46e2 100644 --- a/blockdev.c +++ b/blockdev.c @@ -590,6 +590,7 @@ static BlockBackend *blockdev_init(const char *file, QDict *bs_opts, qdict_set_default_str(bs_opts, BDRV_OPT_CACHE_NO_FLUSH, "off"); qdict_set_default_str(bs_opts, BDRV_OPT_READ_ONLY, read_only ? "on" : "off"); + qdict_set_default_str(bs_opts, BDRV_OPT_AUTO_READ_ONLY, "on"); assert((bdrv_flags & BDRV_O_CACHE_MASK) == 0); if (runstate_check(RUN_STATE_INMIGRATE)) { |