From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Subject: Re: [PATCH v17 18/23] platform/x86: Intel SGX driver
Date: Wed, 28 Nov 2018 11:22:28 -0800
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Cc: Andy Lutomirski <luto@amacapital.net>, Andy Lutomirski <luto@kernel.org>, X86 ML <x86@kernel.org>, Platform Driver <platform-driver-x86@vger.kernel.org>, linux-sgx@vger.kernel.org, Dave Hansen <dave.hansen@intel.com>, "Christopherson, Sean J" <sean.j.christopherson@intel.com>, nhorman@redhat.com, npmccallum@redhat.com, "Ayoun, Serge" <serge.ayoun@intel.com>, shay.katz-zamir@intel.com, haitao.huang@linux.intel.com, Andy Shevchenko <andriy.shevchenko@linux.intel.com>, Thomas Gleixner <tglx@linutronix.de>, "Svahn, Kai" <kai.svahn@intel.com>, mark.shanahan@intel.com, Suresh Siddha <suresh.b.siddha@intel.com>, Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>, "H. Peter Anvin" <hpa@zytor.com>, Darren Hart <dvhart@infradead.org>, Andy Shevchenko <andy@infrade>
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On Wed, Nov 28, 2018 at 04:49:41AM -0600, Dr. Greg wrote:
> We've been carrying a patch, that drops in on top of the proposed
> kernel driver, that implements the needed policy management framework
> for DAC fragile (FLC) platforms.  After a meeting yesterday with the
> client that is funding the work, a decision was made to release the
> enhancements when the SGX driver goes mainline.  That will at least
> give developers the option of creating solutions on Linux that
> implement the security guarantees that SGX was designed to deliver.

We do not need yet another policy management framework to the *kernel*.

The token based approach that Andy is proposing is proven and well
established method to create a mechanism. You can then create a daemon
to user space that decides who it wants to send tokes.

/Jarkko