Re: [PATCH 1/2] hw/arm/virt: Rename default_bus_bypass_iommu

[Eric Auger <eauger@redhat.com>]

Hi Paolo, Peter,

On 10/2/21 7:30 AM, Markus Armbruster wrote:
> Markus Armbruster <armbru@redhat.com> writes:
> 
>> Markus Armbruster <armbru@redhat.com> writes:
>>
>>> Did this series fall through the cracks for 6.1?
>>
>> Missed 6.1.  What now?
> 
> If I understand this correctly, it's a regression in 6.1.  Paolo, please
> advise on what should be done.

Can we get those 2 fixes merged?

Maybe we should also add
Cc: qemu-stable@nongnu.org

If so is there a chance the fix gets backported to 6.1?

Thanks

Eric
> 
>>> 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-aarch64 -M virt,default_bus_bypass_iommu=on
>>>> qemu-system-aarch64: Property 'virt-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: 6d7a85483a06 ("hw/arm/virt: Add default_bus_bypass_iommu machine option")
>>>> Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
>>>> ---
>>>>  hw/arm/virt.c | 4 ++--
>>>>  1 file changed, 2 insertions(+), 2 deletions(-)
>>>>
>>>> diff --git a/hw/arm/virt.c b/hw/arm/virt.c
>>>> index b4598d3fe6..7075cdc15e 100644
>>>> --- a/hw/arm/virt.c
>>>> +++ b/hw/arm/virt.c
>>>> @@ -2671,10 +2671,10 @@ static void virt_machine_class_init(ObjectClass *oc, void *data)
>>>>                                            "Set the IOMMU type. "
>>>>                                            "Valid values are none and smmuv3");
>>>>  
>>>> -    object_class_property_add_bool(oc, "default_bus_bypass_iommu",
>>>> +    object_class_property_add_bool(oc, "default-bus-bypass-iommu",
>>>>                                     virt_get_default_bus_bypass_iommu,
>>>>                                     virt_set_default_bus_bypass_iommu);
>>>> -    object_class_property_set_description(oc, "default_bus_bypass_iommu",
>>>> +    object_class_property_set_description(oc, "default-bus-bypass-iommu",
>>>>                                            "Set on/off to enable/disable "
>>>>                                            "bypass_iommu for default root bus");
> 
>