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> Patch: -- diff --git a/qemu-options.hx b/qemu-options.hx index daefce3..db8be37 100644 --- a/qemu-options.hx +++ b/qemu-options.hx @@ -288,13 +288,19 @@ 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,