Re: [PATCH] docs: security: Confidential computing intro and threat model

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On Wed, Apr 26, 2023, Carlos Bilbao wrote:
> On 4/26/23 10:51 AM, Sean Christopherson wrote:
> > This document is named confidential-computing.rst, not tdx-and-snp.rst.  Not
> > explicitly mentioning SEV doesn't magically warp reality to make descriptions like
> > this one from security/secrets/coco.rst disappear:
> > 
> >   Introduction                                                                    
> >   ============                                                                    
> >                                                                                 
> >   Confidential Computing (coco) hardware such as AMD SEV (Secure Encrypted        
> >   Virtualization) allows guest owners to inject secrets into the VMs              
> >   memory without the host/hypervisor being able to read them.
> > 
> > My complaint about this document being too Intel/AMD centric isn't that it doesn't
> > mention other implementations, it's that the doc describes CoCo purely from the
> > narrow viewpoint of Intel TDX and AMD SNP, and to be blunt, reads like a press
> > release and not an objective overview of CoCo.
> 
> Be specific about the parts of the document that you feel are too
> AMD/Intel centric, and we will correct them.

The whole thing?  There aren't specific parts that are too SNP/TDX centric, the
entire tone and approach of the document is wrong.  As I responded to Dave, I
would feel differently if the document were named tdx-and-snp-threat-model.rst,
but this patch proposes a generic confidential-computing.rst and presents the
SNP+TDX confidential VM use case as if it's the *only* confidential computing use
case.



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