Re: [PATCH v6 3/7] powerpc/powernv: Introduce FW_FEATURE_ULTRAVISOR

2019-08-23 Thread Michael Ellerman
Claudio Carvalho writes: > In PEF enabled systems, some of the resources which were previously > hypervisor privileged are now ultravisor privileged and controlled by > the ultravisor firmware. > > This adds FW_FEATURE_ULTRAVISOR to indicate if PEF is enabled. > > The host kernel can use FW_FEATU

[PATCH v6 3/7] powerpc/powernv: Introduce FW_FEATURE_ULTRAVISOR

2019-08-21 Thread Claudio Carvalho
In PEF enabled systems, some of the resources which were previously hypervisor privileged are now ultravisor privileged and controlled by the ultravisor firmware. This adds FW_FEATURE_ULTRAVISOR to indicate if PEF is enabled. The host kernel can use FW_FEATURE_ULTRAVISOR, for instance, to skip ac