Miroslav Rezanina <mreza...@redhat.com> writes:
> There's only TODO information in qemu man page for -global option. This is a
> basic description of this option with simple example.
>
> Signed-off-by: Miroslav Rezanina <mreza...@redhat.com>
>
> v4:
> - break long line
>
> v3:
> - add use case description
> - use prop instead of property
>
> v2:
> - Use better value in example
> Patch:
> --
> diff --git a/qemu-options.hx b/qemu-options.hx
> index daefce3..662f571 100644
> --- a/qemu-options.hx
> +++ b/qemu-options.hx
> @@ -288,13 +288,21 @@ TODO
> ETEXI
>
> DEF("global", HAS_ARG, QEMU_OPTION_global,
> - "-global driver.property=value\n"
> + "-global driver.prop=value\n"
> " set a global default for a driver property\n",
> QEMU_ARCH_ALL)
> STEXI
> -@item -global
> +@item -global @var{driver}.@var{prop}=@var{value}
> @findex -global
> -TODO
> +Set default value of @var{driver}'s property @var{prop} to @var{value}, e.g.:
> +
> +@example
> +qemu -global ide-drive.physical_block_size=4096 -drive
> file=file,if=ide,index=0,media=disk
> +@end example
> +
> +In particular, you can use this to set driver properties for devices which
> are
> +created automatically by the machine model. To create a device which is not
> +created automatically and set properties on it, use -@option{device}.
> ETEXI
>
> DEF("mtdblock", HAS_ARG, QEMU_OPTION_mtdblock,
This is a clear improvement. Cc'ing Anthony, the qdev maintainer in all
but name ;)
