Re: [RFC PATCH v4 15/28] Add support to access persistent memory in the clear

2017-03-23 Thread Tom Lendacky
On 3/17/2017 5:58 PM, Elliott, Robert (Persistent Memory) wrote: -Original Message- From: linux-kernel-ow...@vger.kernel.org [mailto:linux-kernel- ow...@vger.kernel.org] On Behalf Of Tom Lendacky Sent: Thursday, February 16, 2017 9:45 AM Subject: [RFC PATCH v4 15/28] Add support to

RE: [RFC PATCH v4 15/28] Add support to access persistent memory in the clear

2017-03-17 Thread Elliott, Robert (Persistent Memory)
> -Original Message- > From: linux-kernel-ow...@vger.kernel.org [mailto:linux-kernel- > ow...@vger.kernel.org] On Behalf Of Tom Lendacky > Sent: Thursday, February 16, 2017 9:45 AM > Subject: [RFC PATCH v4 15/28] Add support to access persistent memory in > the cle

[RFC PATCH v4 15/28] Add support to access persistent memory in the clear

2017-02-16 Thread Tom Lendacky
Persistent memory is expected to persist across reboots. The encryption key used by SME will change across reboots which will result in corrupted persistent memory. Persistent memory is handed out by block devices through memory remapping functions, so be sure not to map this memory as encrypted.