On Tue, Jan 22, 2019 at 07:59:31AM -0800, Ram Pai wrote: > Power9 supports a new feature called Protected Execution Facility; also > known as Secure Memory Facility. > > This feature enables a higher privileged execution mode called Ultravisor mode. > When enabled, Hypervisor can access some system resources only through > Ultravisor using ucalls. Paravirtualize the hypervisor to use the services of > the Ultravisor. The PEF along with the Paravirtualized hypervisor and the > Ultravisor, enables Secure Virtual Machines. Forgot to add RFC tag to these patches. Yes, requesting your comments. Thanks, RP