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Re: [Qemu-devel] [PATCH v3 4/7] qmp: enable query-[chardev|version|name|
From: |
Markus Armbruster |
Subject: |
Re: [Qemu-devel] [PATCH v3 4/7] qmp: enable query-[chardev|version|name|uuid|iothreads|memdev] commands in preconfig state |
Date: |
Mon, 11 Jun 2018 13:28:03 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/26.1 (gnu/linux) |
"Dr. David Alan Gilbert (git)" <address@hidden> writes:
> From: Igor Mammedov <address@hidden>
>
> subj commands, are informational and do not depend on machine being
> initialized. Make them available early in preconfig runstate to make
> the later a little bit more useful.
>
> Signed-off-by: Igor Mammedov <address@hidden>
Excessively long subject line. Suggested fix:
qmp: Enable a few query- commands in preconfig state
Commands query-chardev, query-version, query-name, query-uuid,
query-iothreads, query-memdev are informational and do not depend on
the machine being initialized. Make them available in preconfig
runstate to make the latter a little bit more useful.
> ---
> qapi/char.json | 3 ++-
> qapi/misc.json | 12 +++++++-----
> 2 files changed, 9 insertions(+), 6 deletions(-)
>
> diff --git a/qapi/char.json b/qapi/char.json
> index ae19dcd1ed..60f31d83fc 100644
> --- a/qapi/char.json
> +++ b/qapi/char.json
> @@ -62,7 +62,8 @@
> # }
> #
> ##
> -{ 'command': 'query-chardev', 'returns': ['ChardevInfo'] }
> +{ 'command': 'query-chardev', 'returns': ['ChardevInfo'],
> + 'allow-preconfig': true }
Okay because
if (qemu_opts_foreach(qemu_find_opts("chardev"),
chardev_init_func, NULL, NULL)) {
exit(1);
}
runs before -preconfig's main_loop().
>
> ##
> # @ChardevBackendInfo:
> diff --git a/qapi/misc.json b/qapi/misc.json
> index f83a63a0ab..1be1728c0e 100644
> --- a/qapi/misc.json
> +++ b/qapi/misc.json
> @@ -117,7 +117,8 @@
> # }
> #
> ##
> -{ 'command': 'query-version', 'returns': 'VersionInfo' }
> +{ 'command': 'query-version', 'returns': 'VersionInfo',
> + 'allow-preconfig': true }
Returns data fixed at compile time. Okay.
>
> ##
> # @CommandInfo:
> @@ -241,7 +242,7 @@
> # <- { "return": { "name": "qemu-name" } }
> #
> ##
> -{ 'command': 'query-name', 'returns': 'NameInfo' }
> +{ 'command': 'query-name', 'returns': 'NameInfo', 'allow-preconfig': true }
Okay because parse_name() runs before -preconfig's main_loop().
> ##
> # @KvmInfo:
> @@ -301,7 +302,7 @@
> # <- { "return": { "UUID": "550e8400-e29b-41d4-a716-446655440000" } }
> #
> ##
> -{ 'command': 'query-uuid', 'returns': 'UuidInfo' }
> +{ 'command': 'query-uuid', 'returns': 'UuidInfo', 'allow-preconfig': true }
Okay because qemu_uuid(optarg, &qemu_uuid) runs before -preconfig's
main_loop().
>
> ##
> # @EventInfo:
> @@ -710,7 +711,8 @@
> # }
> #
> ##
> -{ 'command': 'query-iothreads', 'returns': ['IOThreadInfo'] }
> +{ 'command': 'query-iothreads', 'returns': ['IOThreadInfo'],
> + 'allow-preconfig': true }
Feeling lazy... why is this one okay?
>
> ##
> # @BalloonInfo:
> @@ -2902,7 +2904,7 @@
> # }
> #
> ##
> -{ 'command': 'query-memdev', 'returns': ['Memdev'] }
> +{ 'command': 'query-memdev', 'returns': ['Memdev'], 'allow-preconfig': true }
>
> ##
> # @PCDIMMDeviceInfo:
And this one?
[Qemu-devel] [PATCH v3 1/7] hmp: Add flag for preconfig commands, Dr. David Alan Gilbert (git), 2018/06/08
[Qemu-devel] [PATCH v3 4/7] qmp: enable query-[chardev|version|name|uuid|iothreads|memdev] commands in preconfig state, Dr. David Alan Gilbert (git), 2018/06/08
- Re: [Qemu-devel] [PATCH v3 4/7] qmp: enable query-[chardev|version|name|uuid|iothreads|memdev] commands in preconfig state,
Markus Armbruster <=
[Qemu-devel] [PATCH v3 6/7] hmp: add exit_preconfig, Dr. David Alan Gilbert (git), 2018/06/08
[Qemu-devel] [PATCH v3 2/7] hmp: Allow help on preconfig commands, Dr. David Alan Gilbert (git), 2018/06/08