From patchwork Thu Nov 29 19:00:10 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christophe Leroy X-Patchwork-Id: 1005600 Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 435Rjq6wynz9s8r for ; Fri, 30 Nov 2018 06:02:55 +1100 (AEDT) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=c-s.fr Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 435Rjq5Wz5zDrFn for ; Fri, 30 Nov 2018 06:02:55 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=c-s.fr X-Original-To: linuxppc-dev@lists.ozlabs.org Delivered-To: linuxppc-dev@lists.ozlabs.org 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 Received: from pegase1.c-s.fr (pegase1.c-s.fr [93.17.236.30]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 435Rfl3m4dzDrFD for ; Fri, 30 Nov 2018 06:00:15 +1100 (AEDT) Received: from localhost (mailhub1-int [192.168.12.234]) by localhost (Postfix) with ESMTP id 435Rfg660tz9vGFM; Thu, 29 Nov 2018 20:00:11 +0100 (CET) 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 ORYJSePtUn2O; Thu, 29 Nov 2018 20:00:11 +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 435Rfg5Z5Fz9vGDx; Thu, 29 Nov 2018 20:00:11 +0100 (CET) Received: from localhost (localhost [127.0.0.1]) by messagerie.si.c-s.fr (Postfix) with ESMTP id 9387D8B8DA; Thu, 29 Nov 2018 20:00:11 +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 TCMEa3rbyeXJ; Thu, 29 Nov 2018 20:00:11 +0100 (CET) Received: from po14163vm.idsi0.si.c-s.fr (unknown [192.168.232.3]) by messagerie.si.c-s.fr (Postfix) with ESMTP id B21F38B8D3; Thu, 29 Nov 2018 20:00:10 +0100 (CET) Received: by po14163vm.idsi0.si.c-s.fr (Postfix, from userid 0) id 6CCB169B39; Thu, 29 Nov 2018 19:00:10 +0000 (UTC) Message-Id: From: Christophe Leroy Subject: [PATCH v1 00/13] powerpc/32s: Use BATs for STRICT_KERNEL_RWX To: Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman , j.neuschaefer@gmx.net Date: Thu, 29 Nov 2018 19:00:10 +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+patchwork-incoming=ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" The purpose of this serie is to use BATs with STRICT_KERNEL_RWX See patch 12 for details. Christophe Leroy (13): powerpc/mm: add exec protection on powerpc 603 powerpc/mm/32: add base address to mmu_mapin_ram() powerpc/mm/32s: rework mmu_mapin_ram() powerpc/mm/32s: use generic mmu_mapin_ram() for all blocks. powerpc/wii: remove wii_mmu_mapin_mem2() powerpc/mm/32s: use _PAGE_EXEC in setbat() powerpc/mm/32s: add setibat() clearibat() and update_bats() powerpc/32: add helper to write into segment registers powerpc/mmu: add is_strict_kernel_rwx() helper powerpc/kconfig: define PAGE_SHIFT inside Kconfig powerpc/kconfig: define CONFIG_DATA_SHIFT and CONFIG_ETEXT_SHIFT powerpc/mm/32s: Use BATs for STRICT_KERNEL_RWX powerpc/kconfig: make _etext and data areas alignment configurable on Book3s 32 arch/powerpc/Kconfig | 46 +++++++ arch/powerpc/include/asm/book3s/32/hash.h | 1 + arch/powerpc/include/asm/book3s/32/mmu-hash.h | 2 + arch/powerpc/include/asm/book3s/32/pgtable.h | 29 ++-- arch/powerpc/include/asm/cputable.h | 8 +- arch/powerpc/include/asm/mmu.h | 11 ++ arch/powerpc/include/asm/page.h | 13 +- arch/powerpc/include/asm/reg.h | 5 + arch/powerpc/kernel/head_32.S | 37 ++++- arch/powerpc/kernel/vmlinux.lds.S | 9 +- arch/powerpc/mm/40x_mmu.c | 2 +- arch/powerpc/mm/44x_mmu.c | 2 +- arch/powerpc/mm/8xx_mmu.c | 2 +- arch/powerpc/mm/dump_linuxpagetables-generic.c | 2 - arch/powerpc/mm/fsl_booke_mmu.c | 2 +- arch/powerpc/mm/init_32.c | 6 +- arch/powerpc/mm/mmu_decl.h | 10 +- arch/powerpc/mm/pgtable.c | 20 +-- arch/powerpc/mm/pgtable_32.c | 35 +++-- arch/powerpc/mm/ppc_mmu_32.c | 178 +++++++++++++++++++++---- arch/powerpc/platforms/embedded6xx/wii.c | 24 ---- 21 files changed, 324 insertions(+), 120 deletions(-)