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=-5.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no 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 CEFC5C5519F for ; Wed, 18 Nov 2020 09:28:49 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 4FBB521D7E for ; Wed, 18 Nov 2020 09:28:49 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="Vvui4+qc"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="N4IKTxPZ" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4FBB521D7E Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References:Message-ID: Subject:To:From:Date:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=TnrogUBC3eoySpjZkcaH/P74IvE6zZdjJt4wraejqGU=; b=Vvui4+qccbfuvCMgCY/T39UNQ pYvud0FYfXZ4iMEuBRSOEZFKKuAnLhHVZ73bUSM4lyrlZxkDlbUA6ypPp8O9sneMtJ5cJAQKYqQlU t+cOvetTUIOENge3zmlnkGz4PPh/T8rMcA2RaB6IUa8Rc9qfM3w4igPztAZKC5deE0+4qm/pityWP Ne2jPkuq67MH3jIbq9LJkEylOnGHE9xexCTasslTv/XrPKscovh1AqvmbGFgcWZ6vQxN+ShFTy1Dj UnNRjdjSJR4onFhOnK1dULu4JCIyhDL9NTqBBkocY6TasyOz9jp+Z5a+hDPQq4xNwn3/CT4w1l7kd fGp7s4xQg==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kfJkh-0002zh-My; Wed, 18 Nov 2020 09:27:47 +0000 Received: from mail.kernel.org ([198.145.29.99]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kfJkd-0002yY-2n for linux-arm-kernel@lists.infradead.org; Wed, 18 Nov 2020 09:27:44 +0000 Received: from willie-the-truck (236.31.169.217.in-addr.arpa [217.169.31.236]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id B5E422463B; Wed, 18 Nov 2020 09:27:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1605691662; bh=ge8+uvQIKDQ6q4G5HQQOhiK/c/mZbrhHb2Xl7DOMJQQ=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=N4IKTxPZLcXCCVH9nUkT71UexkvrMDvMIPHb54F0DVUZzmd8S9/Qu1sr8Ag9GD3dK SxtrFIuWL7WSS3lKx5CH9oPnUGkO6yhKWACF1wmOUmxlHUW9WFX822rXxPMlTxr01i iWm0S+QujZaCuN8LZtN31J/sejCOqMZeso1PqrJI= Date: Wed, 18 Nov 2020 09:27:37 +0000 From: Will Deacon To: Catalin Marinas Subject: Re: [PATCH 0/2] scs: switch to vmapped shadow stacks Message-ID: <20201118092736.GA1577@willie-the-truck> References: <20201022202355.3529836-1-samitolvanen@google.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201118_042743_262712_B31E1B85 X-CRM114-Status: GOOD ( 17.21 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , Kees Cook , Ard Biesheuvel , linux-kernel@vger.kernel.org, James Morse , Sami Tolvanen , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Tue, Nov 17, 2020 at 05:35:24PM +0000, Catalin Marinas wrote: > On Thu, Oct 22, 2020 at 01:23:53PM -0700, Sami Tolvanen wrote: > > As discussed a few months ago [1][2], virtually mapped shadow call stacks > > are better for safety and robustness. This series dusts off the VMAP > > option from the original SCS patch series and switches the kernel to use > > virtually mapped shadow stacks unconditionally when SCS is enabled. > > > > [1] https://lore.kernel.org/lkml/20200515172355.GD23334@willie-the-truck/ > > [2] https://lore.kernel.org/lkml/20200427220942.GB80713@google.com/ > > > > > > Sami Tolvanen (2): > > scs: switch to vmapped shadow stacks > > arm64: scs: use vmapped IRQ and SDEI shadow stacks > > Will, Mark. Any objections to this series? If not, I can queue it for > 5.11 via the arm64 tree. It's on my list to review, but I have a tonne of other things I have to get to first. Will _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel