Re: [PATCH for-6.0 1/6] qapi: Add query-accel command

[Philippe Mathieu-Daudé]

On 11/16/20 2:10 PM, Roman Bolshakov wrote:
> There's a problem for management applications to determine if certain
> accelerators available. Generic QMP command should help with that.
> 
> Signed-off-by: Roman Bolshakov <r.bolshakov@yadro.com>
> ---
>  monitor/qmp-cmds.c | 15 +++++++++++++++
>  qapi/machine.json  | 19 +++++++++++++++++++
>  2 files changed, 34 insertions(+)
...
> +##
> +# @query-accel:
> +#
> +# Returns information about an accelerator
> +#
> +# Returns: @KvmInfo
> +#
> +# Since: 6.0.0
> +#
> +# Example:
> +#
> +# -> { "execute": "query-accel", "arguments": { "name": "kvm" } }
> +# <- { "return": { "enabled": true, "present": true } }

FWIW you can use 'qom-list-types' for that:

{ "execute": "qom-list-types", "arguments": { "implements": "accel" } }
{
    "return": [
        {
            "name": "qtest-accel",
            "parent": "accel"
        },
        {
            "name": "tcg-accel",
            "parent": "accel"
        },
        {
            "name": "xen-accel",
            "parent": "accel"
        },
        {
            "name": "kvm-accel",
            "parent": "accel"
        },
        {
            "name": "accel",
            "parent": "object"
        }
    ]
}

Which is what I use for integration tests:
https://www.mail-archive.com/qemu-devel@nongnu.org/msg675079.html
https://www.mail-archive.com/qemu-devel@nongnu.org/msg675085.html