From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.5 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 428E6C43387 for ; Mon, 31 Dec 2018 19:51:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0D724218A4 for ; Mon, 31 Dec 2018 19:51:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1546285880; bh=NpKSN3UYCtIFR1ayOSb/VFuDfTDRzzKzhjXr0i/9Icg=; h=References:In-Reply-To:From:Date:Subject:To:Cc:List-ID:From; b=mMukqPra18tjrdamG3IiyGSRfa5PLiTJX/HnSc7K9dpA9ubrQlsw+jlJ8M136cuI0 Gm7XWW5IxWkBh68NNWmTT+MpJVpd9jb3G4EieZzLxcZ7nbKL1DpjyiMHyjfhPKVI8b pJxbl30vvTkVcMVPd6vrddHbeHTxpkASEx5MTE34= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727897AbeLaTvT (ORCPT ); Mon, 31 Dec 2018 14:51:19 -0500 Received: from mail.kernel.org ([198.145.29.99]:38904 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727311AbeLaTvS (ORCPT ); Mon, 31 Dec 2018 14:51:18 -0500 Received: from mail-wm1-f47.google.com (mail-wm1-f47.google.com [209.85.128.47]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id A7B70218AD for ; Mon, 31 Dec 2018 19:51:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1546285877; bh=NpKSN3UYCtIFR1ayOSb/VFuDfTDRzzKzhjXr0i/9Icg=; h=References:In-Reply-To:From:Date:Subject:To:Cc:From; b=rMDNfPjyXbvseavzqw2+M+NHgl9KsYRdTuEL7xrZpV1thFeetycmgDV2I74NrWP5q UqS3VLwXtda/ibkQ4tLyWs2X1q5C5zP3ojQX0H5vknfnKVhQFsLonn1URL3OGDVO0u geJkXqmFmAbMcAHOWxbIRz6H4y+q1QMJtsrNf6IU= Received: by mail-wm1-f47.google.com with SMTP id t200so12939544wmt.0 for ; Mon, 31 Dec 2018 11:51:17 -0800 (PST) X-Gm-Message-State: AJcUukcuX3bIAf4NxRaV5LT+1j/3lxIy7e70ts5tlqhxMSfcroIAoySE zSVoy1WudLQXXdXVnx/CFwTesbVsnTuGYv8Q9gBnRg== X-Google-Smtp-Source: AFSGD/WoIg51LqLPkoTfZr0VvJK8m01eZrKyvTkTZxqxXKgpnQTu6uD/IKngbSGtrOfk3Oq7+cUfT5d2MME7Pvg8R2g= X-Received: by 2002:a1c:aa0f:: with SMTP id t15mr30723613wme.108.1546285876094; Mon, 31 Dec 2018 11:51:16 -0800 (PST) MIME-Version: 1.0 References: <20181231072112.21051-1-namit@vmware.com> In-Reply-To: <20181231072112.21051-1-namit@vmware.com> From: Andy Lutomirski Date: Mon, 31 Dec 2018 11:51:04 -0800 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [RFC v2 0/6] x86: dynamic indirect branch promotion To: Nadav Amit Cc: Ingo Molnar , Andy Lutomirski , Peter Zijlstra , Josh Poimboeuf , Edward Cree , "H . Peter Anvin" , Thomas Gleixner , LKML , Nadav Amit , X86 ML , Paolo Abeni , Borislav Petkov , David Woodhouse Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, Dec 30, 2018 at 11:20 PM Nadav Amit wrote: > > This is a revised version of optpolines (formerly named retpolines) for > dynamic indirect branch promotion in order to reduce retpoline overheads > [1]. Some of your changelogs still call them "relpolines". I have a crazy suggestion: maybe don't give them a cute name at all? Where it's actually necessary to name them (like in a config option), use a description like CONFIG_DYNAMIC_DEVIRTUALIZATION or CONFIG_PATCH_INDIRECT_CALLS or something. --Andy