linux-kernel - Re: [PATCH v30 04/20] x86/sgx: Add SGX microarchitectural data structures

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Message-ID: <20200520184745.GJ1457@zn.tnic>
Date:   Wed, 20 May 2020 20:47:45 +0200
From:   Borislav Petkov <bp@...en8.de>
To:     Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
Cc:     linux-kernel@...r.kernel.org, x86@...nel.org,
        linux-sgx@...r.kernel.org, akpm@...ux-foundation.org,
        dave.hansen@...el.com, sean.j.christopherson@...el.com,
        nhorman@...hat.com, npmccallum@...hat.com, haitao.huang@...el.com,
        andriy.shevchenko@...ux.intel.com, tglx@...utronix.de,
        kai.svahn@...el.com, josh@...htriplett.org, luto@...nel.org,
        kai.huang@...el.com, rientjes@...gle.com, cedric.xing@...el.com,
        puiterwijk@...hat.com, Jethro Beekman <jethro@...tanix.com>
Subject: Re: [PATCH v30 04/20] x86/sgx: Add SGX microarchitectural data
 structures

On Fri, May 15, 2020 at 03:43:54AM +0300, Jarkko Sakkinen wrote:
> +/**
> + * struct sgx_sigstruct_header -  defines author of the enclave
> + * @header1:		constant byte string
> + * @vendor:		must be either 0x0000 or 0x8086

Out of pure curiosity: what is that about?

Nothing in the patchset enforces this, so hw does? If so, why?

Are those vendor IDs going to be assigned by someone or what's up?

Thx.

-- 
Regards/Gruss,
    Boris.

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