Re: [RFC PATCH v2 04/20] x86: Secure Memory Encryption (SME) support

[Tom Lendacky]

On 08/25/2016 08:04 AM, Thomas Gleixner wrote:
> On Mon, 22 Aug 2016, Tom Lendacky wrote:
> 
>> Provide support for Secure Memory Encryption (SME). This initial support
>> defines the memory encryption mask as a variable for quick access and an
>> accessor for retrieving the number of physical addressing bits lost if
>> SME is enabled.
> 
> What is the reason that this needs to live in assembly code?

In later patches this code is expanded and deals with a lot of page
table manipulation, cpuid/rdmsr instructions, etc. and so I thought it
was best to do it this way.

Thanks,
Tom

>  
> Thanks,
> 
> 	tglx
>