linux-kernel - Re: [PATCH v39 08/24] x86/sgx: Initialize metadata for Enclave Page Cache (EPC) sections

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Message-ID: <20201023090301.GB168477@linux.intel.com>
Date:   Fri, 23 Oct 2020 12:03:01 +0300
From:   Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
To:     Dave Hansen <dave.hansen@...el.com>
Cc:     Jarkko Sakkinen <jarkko@...nel.org>, x86@...nel.org,
        linux-sgx@...r.kernel.org, linux-kernel@...r.kernel.org,
        Sean Christopherson <sean.j.christopherson@...el.com>,
        Jethro Beekman <jethro@...tanix.com>,
        Darren Kenny <darren.kenny@...cle.com>,
        Serge Ayoun <serge.ayoun@...el.com>, akpm@...ux-foundation.org,
        andriy.shevchenko@...ux.intel.com, asapek@...gle.com, bp@...en8.de,
        cedric.xing@...el.com, chenalexchen@...gle.com,
        conradparker@...gle.com, cyhanish@...gle.com,
        haitao.huang@...el.com, kai.huang@...el.com, kai.svahn@...el.com,
        kmoy@...gle.com, ludloff@...gle.com, luto@...nel.org,
        nhorman@...hat.com, npmccallum@...hat.com, puiterwijk@...hat.com,
        rientjes@...gle.com, tglx@...utronix.de, yaozhangx@...gle.com,
        mikko.ylinen@...el.com
Subject: Re: [PATCH v39 08/24] x86/sgx: Initialize metadata for Enclave Page
 Cache (EPC) sections

On Mon, Oct 19, 2020 at 06:40:34AM -0700, Dave Hansen wrote:
> On 10/19/20 1:45 AM, Jarkko Sakkinen wrote:
> > On Sat, Oct 03, 2020 at 07:50:43AM +0300, Jarkko Sakkinen wrote:
> >> +config INTEL_SGX
> > Since the directory for this was renamed some iterations ago from
> > arch/x86/kernel/cpu/sgx to intel_sgx given the feedback from Boris,
> > I'm wondering should this also be renamed as X86_SGX?
> 
> I say yes for two reasons:
> 
> We're recently adding a prohibition against vendors adding
> VENDOR_FEATURE, preferring "FEATURE" instead.  But, I seriously doubt
> anyone else is going to to to the effort that Intel did here.
> 
> Also "SGX" is short enough that I can imagine someone else plausibly
> wanting to do CONFIG_SGX for something else.
> 
> So, I'm OK with keeping "INTEL_SGX", but I'd also be fine with "X86_SGX".

I'll rename it to X86_SGX, given that we changed the directory earlier
(based on feedback) from "intel_sgx" to "sgx".

/Jarkko