Re: [RFC, PATCH 18/22] x86/mm: Handle allocation of encrypted pages

[Kirill A. Shutemov]

On Mon, Mar 05, 2018 at 11:07:55AM -0800, Dave Hansen wrote:
> On 03/05/2018 08:26 AM, Kirill A. Shutemov wrote:
> > kmap_atomic_keyid() would map the page with the specified KeyID.
> > For now it's dummy implementation that would be replaced later.
> 
> I think you need to explain the tradeoffs here.  We could just change
> the linear map around, but you don't.  Why?

I don't think we settled on implementation by this point: kmap() is only
interface and doesn't imply what it acctually does. I *can* change linear
mapping if we would chose so.

I will explain the kmap() implementation in patches that would implement
it.

-- 
 Kirill A. Shutemov