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 > >
