On Fri, Aug 13, 2021 at 11:59:21AM -0500, Tom Lendacky wrote: > +#define PATTR_MEM_ENCRYPT 0 /* Encrypted memory */ > +#define PATTR_HOST_MEM_ENCRYPT 1 /* Host encrypted memory */ > +#define PATTR_GUEST_MEM_ENCRYPT 2 /* Guest encrypted memory */ > +#define PATTR_GUEST_PROT_STATE 3 /* Guest encrypted state */ Please write an actual detailed explanaton of what these mean, that is what implications it has on the kernel.