Re: [PATCH 2/2] hw/i386: Rename default_bus_bypass_iommu

[Markus Armbruster]

Michael & Marcel, this patch fixes a bug that became a regression when
the fix missed 6.1.  It's been stuck on the list since August.  Please
have a look, and if it's good, get it merged.  I just asked the arm/virt
maintainer to do the same for PATCH 1.

Jean-Philippe Brucker <jean-philippe@linaro.org> writes:

> Since commit d8fb7d0969d5 ("vl: switch -M parsing to keyval"), machine
> parameter definitions cannot use underscores, because keyval_dashify()
> transforms them to dashes and the parser doesn't find the parameter.
>
> This affects option default_bus_bypass_iommu which was introduced in the
> same release:
>
> $ qemu-system-x86_64 -M q35,default_bus_bypass_iommu=on
> qemu-system-x86_64: Property 'pc-q35-6.1-machine.default-bus-bypass-iommu' 
> not found
>
> Rename the parameter to "default-bus-bypass-iommu". Passing
> "default_bus_bypass_iommu" is still valid since the underscore are
> transformed automatically.
>
> Fixes: c9e96b04fc19 ("hw/i386: Add a default_bus_bypass_iommu pc machine 
> option")
> Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
> ---
>  hw/i386/pc.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/hw/i386/pc.c b/hw/i386/pc.c
> index fb24f000e7..ce4756ad59 100644
> --- a/hw/i386/pc.c
> +++ b/hw/i386/pc.c
> @@ -1779,7 +1779,7 @@ static void pc_machine_class_init(ObjectClass *oc, void 
> *data)
>      object_class_property_add_bool(oc, "hpet",
>          pc_machine_get_hpet, pc_machine_set_hpet);
>  
> -    object_class_property_add_bool(oc, "default_bus_bypass_iommu",
> +    object_class_property_add_bool(oc, "default-bus-bypass-iommu",
>          pc_machine_get_default_bus_bypass_iommu,
>          pc_machine_set_default_bus_bypass_iommu);