linux-kernel - Re: [PATCH v24 08/24] x86/sgx: Enumerate and track EPC sections

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Message-ID: <20191218161821.GG24886@zn.tnic>
Date:   Wed, 18 Dec 2019 17:18:21 +0100
From:   Borislav Petkov <bp@...en8.de>
To:     Sean Christopherson <sean.j.christopherson@...el.com>
Cc:     Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>,
        linux-kernel@...r.kernel.org, x86@...nel.org,
        linux-sgx@...r.kernel.org, akpm@...ux-foundation.org,
        dave.hansen@...el.com, nhorman@...hat.com, npmccallum@...hat.com,
        serge.ayoun@...el.com, shay.katz-zamir@...el.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
Subject: Re: [PATCH v24 08/24] x86/sgx: Enumerate and track EPC sections

On Wed, Dec 18, 2019 at 07:19:44AM -0800, Sean Christopherson wrote:
> Yes, EPC pages are architecturally defined to be 4k sized and aligned.
> 
>   36.5 Enclave Page Cache
> 
>   The EPC is divided into EPC pages. An EPC page is 4KB in size and always
>   aligned on a 4KB boundary.

Aha, thx!

-- 
Regards/Gruss,
    Boris.

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