linux-kernel - Re: [PATCH v20 22/28] x86/traps: Attempt to fixup exceptions in vDSO before signaling

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Message-ID: <20190711175257.p5cyewqsp66nhtji@linux.intel.com>
Date:   Thu, 11 Jul 2019 20:52:57 +0300
From:   Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
To:     Sean Christopherson <sean.j.christopherson@...el.com>
Cc:     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, bp@...en8.de,
        josh@...htriplett.org, luto@...nel.org, kai.huang@...el.com,
        rientjes@...gle.com, Andy Lutomirski <luto@...capital.net>,
        Dave Hansen <dave.hansen@...ux.intel.com>
Subject: Re: [PATCH v20 22/28] x86/traps: Attempt to fixup exceptions in vDSO
 before signaling

On Thu, Jul 11, 2019 at 08:56:46AM -0700, Sean Christopherson wrote:
> On Tue, Jun 25, 2019 at 06:43:41PM +0300, Jarkko Sakkinen wrote:
> > Is there any obvious reason why #PF fixup is in its own patch and the
> > rest are collected to the same patch? I would not find it confusing if
> > there was one patch per exception but really don't get this division.
> 
> I split them due to SGX's funky #PF behavior with respect to th EPCM.
> I'm ok with them being squashed.

Right, better to add a note to the commit message if anything.

/Jarkko