Re: [PATCH 0/2] virt: Set tpm-tis-device ppi property to off by default

[Auger Eric]

Hi Stefan,

On 4/27/20 10:21 PM, Stefan Berger wrote:
> On 4/27/20 10:31 AM, Eric Auger wrote:
>> Instead of using a compat in the mach-virt machine to force
>> PPI off for all virt machines (PPI not supported by the
>> tpm-tis-device device), let's simply change the default value
>> in the sysbus device.
> 
> There is no change in behavior on any arm machine due to this patch,
> right? So backporting would not be necessary?

Indeed, there is no functional change as we keep PPI off. My
understanding is we can safely remove the compat mechanism. I tested
migration between virt machine with compat to virt machine without
compat and conversely (without tpm-tis-device though) and it passed.

Thanks

Eric
> 
> 
>    Stefan
> 
>