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=-0.8 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS autolearn=unavailable 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 7C6E9C43381 for ; Tue, 5 Mar 2019 21:25:01 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (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 BE5D0204EC for ; Tue, 5 Mar 2019 21:25:00 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=c-s.fr header.i=@c-s.fr header.b="BqlEU3+v" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org BE5D0204EC Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=c-s.fr Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 44DVKQ5SBzzDqFv for ; Wed, 6 Mar 2019 08:24:58 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=c-s.fr (client-ip=93.17.236.30; helo=pegase1.c-s.fr; envelope-from=christophe.leroy@c-s.fr; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=c-s.fr Authentication-Results: lists.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=c-s.fr header.i=@c-s.fr header.b="BqlEU3+v"; dkim-atps=neutral Received: from pegase1.c-s.fr (pegase1.c-s.fr [93.17.236.30]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 44DV9q0nMJzDqD4 for ; Wed, 6 Mar 2019 08:18:20 +1100 (AEDT) Received: from localhost (mailhub1-int [192.168.12.234]) by localhost (Postfix) with ESMTP id 44DV9f5Cvwz9v6LQ; Tue, 5 Mar 2019 22:18:14 +0100 (CET) Authentication-Results: localhost; dkim=pass reason="1024-bit key; insecure key" header.d=c-s.fr header.i=@c-s.fr header.b=BqlEU3+v; dkim-adsp=pass; dkim-atps=neutral X-Virus-Scanned: Debian amavisd-new at c-s.fr Received: from pegase1.c-s.fr ([192.168.12.234]) by localhost (pegase1.c-s.fr [192.168.12.234]) (amavisd-new, port 10024) with ESMTP id XKhztWVu6jzK; Tue, 5 Mar 2019 22:18:14 +0100 (CET) Received: from messagerie.si.c-s.fr (messagerie.si.c-s.fr [192.168.25.192]) by pegase1.c-s.fr (Postfix) with ESMTP id 44DV9f46T2z9v6HM; Tue, 5 Mar 2019 22:18:14 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=c-s.fr; s=mail; t=1551820694; bh=U/avHXAM61Oykdu9eXfUdeCw0IRrsRItgwl63tp+/+c=; h=From:Subject:To:Cc:Date:From; b=BqlEU3+vir/sKgFzI59VGajtmT0U4BJtewHrOZT1bun7MUCB88pt2XQMgn7JLwJVO 0xHT/WypDkko1Y2LfPhf4MB2JpSKOKkTLdrAqOH/8QE5kk2uz4Mf7gOElQlCZW8DyL NVP7WdPcnq6rW9KVKiIzvo4iNDtqIojcrmJI7Zdo= Received: from localhost (localhost [127.0.0.1]) by messagerie.si.c-s.fr (Postfix) with ESMTP id B79388B860; Tue, 5 Mar 2019 22:18:14 +0100 (CET) X-Virus-Scanned: amavisd-new at c-s.fr Received: from messagerie.si.c-s.fr ([127.0.0.1]) by localhost (messagerie.si.c-s.fr [127.0.0.1]) (amavisd-new, port 10023) with ESMTP id Q_YrwuO711Or; Tue, 5 Mar 2019 22:18:14 +0100 (CET) Received: from po16846vm.idsi0.si.c-s.fr (unknown [192.168.4.90]) by messagerie.si.c-s.fr (Postfix) with ESMTP id 871B28B83A; Tue, 5 Mar 2019 22:18:14 +0100 (CET) Received: by localhost.localdomain (Postfix, from userid 0) id B526A6F8CD; Tue, 5 Mar 2019 21:18:13 +0000 (UTC) Message-Id: From: Christophe Leroy Subject: [PATCH 0/7] Kernel Userspace protection for PPC32 To: Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman , ruscur@russell.cc Date: Tue, 5 Mar 2019 21:18:13 +0000 (UTC) X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" This series intend to implement Kernel Userspace protection for PPC32. It comes on top of the v4 series for Radix. Christophe Leroy (6): powerpc/8xx: Only define APG0 and APG1 powerpc/8xx: Add Kernel Userspace Execution Prevention powerpc/32: Prepare for Kernel Userspace Access Protection powerpc/8xx: Add Kernel Userspace Access Protection powerpc/book3s32: Prepare Kernel Userspace Access Protection powerpc/book3s32: Implement Kernel Userspace Access Protection Russell Currey (1): powerpc/64s: Implement KUAP for Radix MMU (SQUASH) Documentation/admin-guide/kernel-parameters.txt | 4 +- arch/powerpc/include/asm/book3s/32/kup.h | 96 +++++++++++++++++++++++++ arch/powerpc/include/asm/book3s/32/mmu-hash.h | 4 ++ arch/powerpc/include/asm/book3s/64/kup-radix.h | 79 ++++++++++++++++++++ arch/powerpc/include/asm/exception-64s.h | 2 + arch/powerpc/include/asm/feature-fixups.h | 3 + arch/powerpc/include/asm/futex.h | 4 ++ arch/powerpc/include/asm/kup.h | 72 +++++++++++++++++++ arch/powerpc/include/asm/mmu.h | 10 ++- arch/powerpc/include/asm/nohash/32/kup-8xx.h | 52 ++++++++++++++ arch/powerpc/include/asm/nohash/32/mmu-8xx.h | 26 +++++-- arch/powerpc/include/asm/processor.h | 3 + arch/powerpc/include/asm/ptrace.h | 11 ++- arch/powerpc/include/asm/reg.h | 1 + arch/powerpc/include/asm/uaccess.h | 38 +++++++--- arch/powerpc/kernel/asm-offsets.c | 7 ++ arch/powerpc/kernel/entry_32.S | 16 +++-- arch/powerpc/kernel/entry_64.S | 22 +++++- arch/powerpc/kernel/exceptions-64s.S | 3 + arch/powerpc/kernel/head_32.S | 35 ++++++--- arch/powerpc/kernel/idle_book3s.S | 39 ++++++++++ arch/powerpc/kernel/setup_64.c | 10 +++ arch/powerpc/lib/checksum_wrappers.c | 4 ++ arch/powerpc/lib/code-patching.c | 4 +- arch/powerpc/mm/8xx_mmu.c | 24 +++++++ arch/powerpc/mm/fault.c | 28 +++++--- arch/powerpc/mm/hash_low_32.S | 6 +- arch/powerpc/mm/init-common.c | 26 +++++++ arch/powerpc/mm/init_32.c | 3 + arch/powerpc/mm/pgtable-radix.c | 31 +++++++- arch/powerpc/mm/pkeys.c | 1 + arch/powerpc/mm/ppc_mmu_32.c | 10 +++ arch/powerpc/platforms/Kconfig.cputype | 36 ++++++++++ 33 files changed, 657 insertions(+), 53 deletions(-) create mode 100644 arch/powerpc/include/asm/book3s/32/kup.h create mode 100644 arch/powerpc/include/asm/book3s/64/kup-radix.h create mode 100644 arch/powerpc/include/asm/kup.h create mode 100644 arch/powerpc/include/asm/nohash/32/kup-8xx.h -- 2.13.3