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Message-ID: <ac7edbf7ad681ab762998e3aa1ed118b2cbdf47a.camel@linux.intel.com>
Subject: Re: [PATCH v12 00/18] Enable FSGSBASE instructions
From:   Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
To:     Andi Kleen <ak@linux.intel.com>, Sasha Levin <sashal@kernel.org>
Cc:     linux-kernel@vger.kernel.org, tglx@linutronix.de, bp@alien8.de,
        luto@kernel.org, hpa@zytor.com, dave.hansen@intel.com,
        tony.luck@intel.com, ravi.v.shankar@intel.com,
        chang.seok.bae@intel.com
Date:   Sat, 16 May 2020 15:21:06 +0300
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On Fri, 2020-05-15 at 10:55 -0700, Andi Kleen wrote:
> > Indeed, we've seen a few hacks that basically just enable FSGSBASE:
> > 
> > - https://github.com/oscarlab/graphene-sgx-driver
> > - https://github.com/occlum/enable_rdfsbase
> > 
> > And would very much like to get rid of them...
> 
> These are insecure and open root holes without the patches
> used here.
> 
> -Andi

Yup, totally. 

/Jarkko