linux-kernel - Re: [patch 15/16] x86/entry: Switch page fault exceptions to idtentry

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Message-ID: <afe4d10f-7976-5972-4152-fb641ed352bb@kernel.org>
Date:   Thu, 5 Mar 2020 13:51:52 -0800
From:   Andy Lutomirski <luto@...nel.org>
To:     Thomas Gleixner <tglx@...utronix.de>,
        LKML <linux-kernel@...r.kernel.org>
Cc:     x86@...nel.org, Steven Rostedt <rostedt@...dmis.org>,
        Brian Gerst <brgerst@...il.com>,
        Juergen Gross <jgross@...e.com>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Arnd Bergmann <arnd@...db.de>
Subject: Re: [patch 15/16] x86/entry: Switch page fault exceptions to
 idtentry_simple

On 2/25/20 2:33 PM, Thomas Gleixner wrote:
> Convert page fault exceptions to IDTENTRY_CR2:
>   - Implement the C entry point with DEFINE_IDTENTRY
>   - Emit the ASM stub with DECLARE_IDTENTRY
>   - Remove the ASM idtentry in 64bit
>   - Remove the CR2 read from 64bit
>   - Remove the open coded ASM entry code in 32bit
>   - Fixup the XEN/PV code
>   - Remove the old prototyoes

$SUBJECT says idtentry_simple.  I think you meant IDTENTRY_CR2.

(I typed this a while ago and apparently failed to hit send.  I'm not
sure it's still relevant.)