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Date:   Wed, 31 Aug 2022 11:35:10 -0700
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Subject: Re: [PATCH 1/6] x86/sgx: Do not consider unsanitized pages an error
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To:     "jarkko@kernel.org" <jarkko@kernel.org>,
        Haitao Huang <haitao.huang@linux.intel.com>
Cc:     "Huang, Kai" <kai.huang@intel.com>,
        "pmenzel@molgen.mpg.de" <pmenzel@molgen.mpg.de>,
        "linux-sgx@vger.kernel.org" <linux-sgx@vger.kernel.org>,
        "x86@kernel.org" <x86@kernel.org>,
        "dave.hansen@linux.intel.com" <dave.hansen@linux.intel.com>,
        "Dhanraj, Vijay" <vijay.dhanraj@intel.com>,
        "Chatre, Reinette" <reinette.chatre@intel.com>,
        "mingo@redhat.com" <mingo@redhat.com>,
        "tglx@linutronix.de" <tglx@linutronix.de>,
        "bp@alien8.de" <bp@alien8.de>, "hpa@zytor.com" <hpa@zytor.com>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
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From:   Dave Hansen <dave.hansen@intel.com>
In-Reply-To: <Yw+oR3FKlwbeOl6I@kernel.org>
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Jarkko, Kai and Haitao,

Can you three please start trimming your replies?  You don't need to and
should not quote the entirety of your messages every time you reply.

On 8/31/22 11:28, jarkko@kernel.org wrote:
>> Will it cause racing if we expose dev nodes to user space before
>> ksgxd is started and sensitization done?
> I'll to explain this.
> 
> So the point is to fix the issue at hand, and fix it locally.
> 
> Changing initialization order is simply out of context. It's
> not really an argument for or against changing it
> 
> We are fixing sanitization here, and only that with zero
> side-effects to any other semantics.
> 
> It's dictated by the development process [*] but more
> importantly it's also just plain common sense.

Kai, I think your suggestion is reasonable.  You make a good point about
not needing ksgxd for vepc.

*But*, I think it's a bit too much for a bugfix that's headed to
-stable.  I'm concerned that it will have unintended side effects,
*especially* when there's a working, tested alternative.