linux-kernel - Re: [PATCH v33 03/21] x86/mm: x86/sgx: Signal SIGSEGV with PF

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Message-ID: <20200626133414.GD7853@linux.intel.com>
Date:   Fri, 26 Jun 2020 16:34:14 +0300
From:   Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
To:     Borislav Petkov <bp@...en8.de>
Cc:     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>,
        akpm@...ux-foundation.org, andriy.shevchenko@...ux.intel.com,
        asapek@...gle.com, cedric.xing@...el.com, chenalexchen@...gle.com,
        conradparker@...gle.com, cyhanish@...gle.com,
        dave.hansen@...el.com, haitao.huang@...el.com,
        josh@...htriplett.org, 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
Subject: Re: [PATCH v33 03/21] x86/mm: x86/sgx: Signal SIGSEGV with PF_SGX

On Thu, Jun 25, 2020 at 11:11:03PM +0200, Borislav Petkov wrote:
> On Thu, Jun 25, 2020 at 11:52:11PM +0300, Jarkko Sakkinen wrote:
> > I ended up with:
> > 
> >  *   bit 5 ==				1: protection keys block access
> >  *   bit 6 ==				1: inside SGX enclave
> 
> You mean bit 15.

Duh, did this last thing before falling into sleep last night :-/

Yes, it should be 15.

I'll also rephrase the text to "inside an SGX enclave".

/Jarkko