Re: [PATCH v5 19/32] x86/mm: Add support to access persistent memory in the clear

2017-05-19 Thread Tom Lendacky
On 5/16/2017 9:04 AM, Borislav Petkov wrote: On Tue, Apr 18, 2017 at 04:19:42PM -0500, Tom Lendacky wrote: 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

Re: [PATCH v5 19/32] x86/mm: Add support to access persistent memory in the clear

2017-05-16 Thread Borislav Petkov
On Tue, Apr 18, 2017 at 04:19:42PM -0500, Tom Lendacky wrote: > 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

[PATCH v5 19/32] x86/mm: Add support to access persistent memory in the clear

2017-04-18 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.