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Date:   Thu, 25 Jun 2020 18:49:39 +0200
From:   Borislav Petkov <bp@alien8.de>
To:     Sean Christopherson <sean.j.christopherson@intel.com>
Cc:     Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>, x86@kernel.org,
        linux-sgx@vger.kernel.org, linux-kernel@vger.kernel.org,
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        asapek@google.com, cedric.xing@intel.com, chenalexchen@google.com,
        conradparker@google.com, cyhanish@google.com,
        dave.hansen@intel.com, haitao.huang@intel.com,
        josh@joshtriplett.org, kai.huang@intel.com, kai.svahn@intel.com,
        kmoy@google.com, ludloff@google.com, luto@kernel.org,
        nhorman@redhat.com, npmccallum@redhat.com, puiterwijk@redhat.com,
        rientjes@google.com, tglx@linutronix.de, yaozhangx@google.com
Subject: Re: [PATCH v33 03/21] x86/mm: x86/sgx: Signal SIGSEGV with PF_SGX
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On Thu, Jun 25, 2020 at 08:34:31AM -0700, Sean Christopherson wrote:
> However, building and running enclaves is complex, and the vast majority of
> SGX enabled applications are expected to leverage a library of one kind or
> another to hand the bulk of the gory details.

I gotta say this rings a bell: dhansen alluded on IRC to the jumping
through hoops one needs to do in order to run SGX enclaves.

...

> The vDSO stuff is in patches 15-18 of this series.
> 
> There's a gigantic thread on all the alternatives that were considered[2].
> 
> [1] https://lkml.kernel.org/r/CALCETrXByb2UVuZ6AXUeOd8y90NAikbZuvdN3wf_TjHZ+CxNhA@mail.gmail.com
> [2] https://lkml.kernel.org/r/CALCETrWdpoDkbZjkucKL91GWpDPG9p=VqYrULade2pFDR7S=GQ@mail.gmail.com

Yeah, that makes it very clear. Thanks a lot for taking the time and
writing it down. I've snipped it for brevity but it is very useful!

Thx!

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette