[RFC v2 04/13] x86/mm: Add helper functions for MKTME memory encryption keys

[Alison Schofield]

On Tue, Dec 04, 2018 at 07:35:50AM -0800, Andy Lutomirski wrote:
> 
> 
> > On Dec 3, 2018, at 11:39 PM, Alison Schofield <alison.schofield at intel.com> wrote:
> > 
> > Define a global mapping structure to manage the mapping of userspace
> > Keys to hardware KeyIDs in MKTME (Multi-Key Total Memory Encryption).
> > Implement helper functions that access this mapping structure.
> > 
> 
> Why is a key “void *”?  Who owns the memory?  Can a real type be used?
>
It's of type "struct key" of the kernel key service.
Replacing void w 'struct key'.