Re: [PATCH 0/6] Intel Secure Guard Extensions

[Ingo Molnar]

* Andy Lutomirski <luto@xxxxxxxxxxxxxx> wrote:

> > What new syscalls would be needed for ssh to get all this support?
> 
> This patchset or similar, plus some user code and an enclave to use.
> 
> Sadly, on current CPUs, you also need Intel to bless the enclave.  It looks like 
> new CPUs might relax that requirement.

That looks like a fundamental technical limitation in my book - to an open source 
user this is essentially a very similar capability as tboot: it only allows the 
execution of externally blessed static binary blobs...

I don't think we can merge any of this upstream until it's clear that the hardware 
owner running open-source user-space can also freely define/start his own secure 
enclaves without having to sign the enclave with any external party. I.e. 
self-signed enclaves should be fundamentally supported as well.

Thanks,

	Ingo