linux-kernel - Re: [PATCH v15 23/23] x86/sgx: Driver documentation

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Message-ID: <20181108143942.GA13792@linux.intel.com>
Date:   Thu, 8 Nov 2018 16:39:42 +0200
From:   Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
To:     Dave Hansen <dave.hansen@...el.com>
Cc:     x86@...nel.org, platform-driver-x86@...r.kernel.org,
        linux-sgx@...r.kernel.org, sean.j.christopherson@...el.com,
        nhorman@...hat.com, npmccallum@...hat.com, serge.ayoun@...el.com,
        shay.katz-zamir@...el.com, haitao.huang@...el.com,
        mark.shanahan@...el.com, andriy.shevchenko@...ux.intel.com,
        Jonathan Corbet <corbet@....net>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        "H. Peter Anvin" <hpa@...or.com>,
        "open list:DOCUMENTATION" <linux-doc@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v15 23/23] x86/sgx: Driver documentation

On Wed, Nov 07, 2018 at 09:09:37AM -0800, Dave Hansen wrote:
> On 11/7/18 8:30 AM, Jarkko Sakkinen wrote:
> >> Does this code run when I type "make kselftest"?  If not, I think we
> >> should rectify that.
> > No, it doesn't. It is just my backup for the non-SDK user space code
> > that I've made that I will use to fork my user space SGX projects in
> > the future.
> > 
> > I can work-out a selftest (and provide a new patch in the series) but
> > I'm still wondering what the enclave should do. I would suggest that
> > we start with an enclave that does just EEXIT and nothing else.
> 
> Yeah, that's a start.  But, a good selftest would include things like
> faults and error conditions.

Great. We can add more entry points to the enclave for different tests
but I'll start with a bare minimum. And yeah but ever goes into next
version I'll document the fault handling.

/Jarkko