Re: [PATCH v2 05/25] x86/virt/tdx: Add SEAMCALL wrappers for TDX KeyID management
From: Dave Hansen
Date: Tue Nov 12 2024 - 15:10:42 EST
On 10/30/24 12:00, Rick Edgecombe wrote:
> From: Isaku Yamahata <isaku.yamahata@xxxxxxxxx>
>
> Intel TDX protects guest VMs from malicious host and certain physical
> attacks. Pre-TDX Intel hardware has support for a memory encryption
> architecture called MK-TME, which repurposes several high bits of
> physical address as "KeyID". TDX ends up with reserving a sub-range of
> MK-TME KeyIDs as "TDX private KeyIDs".
The changelog there was great. It read my mind because I was wondering
why some of the operations didn't get combined in helper functions which
could be exported.
Acked-by: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>