Message ID | 20210303155523.124277-1-benjamin@sipsolutions.net |
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Headers | show
Return-Path: <linux-um-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org> X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (no SPF record) smtp.mailfrom=lists.infradead.org (client-ip=2001:8b0:10b:1:d65d:64ff:fe57:4e05; helo=desiato.infradead.org; envelope-from=linux-um-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org; receiver=<UNKNOWN>) Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; secure) header.d=lists.infradead.org header.i=@lists.infradead.org header.a=rsa-sha256 header.s=desiato.20200630 header.b=C70lstWN; dkim-atps=neutral Received: from desiato.infradead.org (desiato.infradead.org [IPv6:2001:8b0:10b:1:d65d:64ff:fe57:4e05]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 4DrTzs2P4wz9rx6 for <incoming@patchwork.ozlabs.org>; Thu, 4 Mar 2021 10:02:49 +1100 (AEDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=desiato.20200630; h=Sender:Content-Transfer-Encoding :Content-Type:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:Message-Id:Date:Subject:Cc:To:From: Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender :Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=nwWMOsxUChTyc8QSWTpY/sqHk8Zrp6IhsOFI04GxtXM=; b=C70lstWNYtDPRBbYstKCwhs5Ww MipSW2HqzbREqk0tUxwhi1rhJt7mKgxf9j5AAnrPTxVh6ROSdXyPj/JeBqksB5LC2wiR/5bLX3KhT QTHvzLVO/atC8SGkYIMKrEh/YI5CyWdqfYrI8ackgvMvyJ2EUPXIXUfFi0eXdHxWHBnPkLBlQjDaG nBPkKVrbS2QYhItlWxpSmXTTTpHzzIz4lmSJiDIAlZb4RRuVBxPlZAE/fttV/GSWyDby5CPws0yM9 dS33ZHV4VrRvqJV7BkyBqJCjD0qmPKw1XX+JEbTwi9FrAGVxl/YFHleZzC8z29z86DUhSfAh5EM30 9hGTT5zg==; Received: from localhost ([::1] helo=desiato.infradead.org) by desiato.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1lHaVn-006r4x-Jh; Wed, 03 Mar 2021 23:02:35 +0000 Received: from s3.sipsolutions.net ([2a01:4f8:191:4433::2] helo=sipsolutions.net) by desiato.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1lHTqx-005UJB-2M for linux-um@lists.infradead.org; Wed, 03 Mar 2021 15:56:02 +0000 Received: by sipsolutions.net with esmtpsa (TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.94) (envelope-from <benjamin@sipsolutions.net>) id 1lHTqt-00BFLI-5P; Wed, 03 Mar 2021 16:55:55 +0100 From: Benjamin Berg <benjamin@sipsolutions.net> To: linux-um@lists.infradead.org Cc: Benjamin Berg <benjamin@sipsolutions.net> Subject: [PATCH 00/27] Implement SECCOMP based userland Date: Wed, 3 Mar 2021 16:54:56 +0100 Message-Id: <20210303155523.124277-1-benjamin@sipsolutions.net> X-Mailer: git-send-email 2.29.2 MIME-Version: 1.0 X-Spam-Note: CRM114 invocation failed X-Spam-Score: 0.4 (/) X-Spam-Report: Spam detection software, running on the system "desiato.infradead.org", has NOT identified this incoming email as spam. The original message has been attached to this so you can view it or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: Currently UML uses ptrace in order to implement userspace processes. This works really well, however, it requires six context switches per pagefault (get faultinfo, run syscalls, continue process). By switching to use SECCOMP, the whole process becomes more collaborative as the userspace process can run code, including host syscalls, before jumping into the kernel and after the kernel returns co [...] Content analysis details: (0.4 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record 0.0 SPF_NONE SPF: sender does not publish an SPF Record 0.4 KHOP_HELO_FCRDNS Relay HELO differs from its IP's reverse DNS X-BeenThere: linux-um@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: <linux-um.lists.infradead.org> List-Unsubscribe: <http://lists.infradead.org/mailman/options/linux-um>, <mailto:linux-um-request@lists.infradead.org?subject=unsubscribe> List-Archive: <http://lists.infradead.org/pipermail/linux-um/> List-Post: <mailto:linux-um@lists.infradead.org> List-Help: <mailto:linux-um-request@lists.infradead.org?subject=help> List-Subscribe: <http://lists.infradead.org/mailman/listinfo/linux-um>, <mailto:linux-um-request@lists.infradead.org?subject=subscribe> Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-um" <linux-um-bounces@lists.infradead.org> Errors-To: linux-um-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org |
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Implement SECCOMP based userland
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