From 72098a3aba7a7fccd7d1287c2ff88c1dac9b807d Mon Sep 17 00:00:00 2001 From: Peter Krempa Date: Tue, 5 Dec 2023 18:14:42 +0100 Subject: stream: Allow users to request only format driver names in backing file format Introduce a new flag 'backing-mask-protocol' for the block-stream QMP command which instructs the internals to use 'raw' instead of the protocol driver in case when a image is used without a dummy 'raw' wrapper. The flag is designed such that it can be always asserted by management tools even when there isn't any update to backing files. The flag will be used by libvirt so that the backing images still reference the proper format even when libvirt will stop using the dummy raw driver (raw driver with no other config). Libvirt needs this so that the images stay compatible with older libvirt versions which didn't expect that a protocol driver name can appear in the backing file format field. Signed-off-by: Peter Krempa Reviewed-by: Vladimir Sementsov-Ogievskiy Message-ID: Reviewed-by: Kevin Wolf Signed-off-by: Kevin Wolf --- block/monitor/block-hmp-cmds.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'block/monitor') diff --git a/block/monitor/block-hmp-cmds.c b/block/monitor/block-hmp-cmds.c index bdbb5cb..d954bec 100644 --- a/block/monitor/block-hmp-cmds.c +++ b/block/monitor/block-hmp-cmds.c @@ -496,7 +496,7 @@ void hmp_block_stream(Monitor *mon, const QDict *qdict) const char *base = qdict_get_try_str(qdict, "base"); int64_t speed = qdict_get_try_int(qdict, "speed", 0); - qmp_block_stream(device, device, base, NULL, NULL, NULL, + qmp_block_stream(device, device, base, NULL, NULL, false, false, NULL, qdict_haskey(qdict, "speed"), speed, true, BLOCKDEV_ON_ERROR_REPORT, NULL, false, false, false, false, &error); -- cgit v1.1