From patchwork Tue Aug 25 15:41:37 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Russell King X-Patchwork-Id: 7071731 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 3B6F5C05AC for ; Tue, 25 Aug 2015 15:44:17 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 6104F206E9 for ; Tue, 25 Aug 2015 15:44:16 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 966D8206B2 for ; Tue, 25 Aug 2015 15:44:15 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZUGMW-0004ty-Vr; Tue, 25 Aug 2015 15:42:13 +0000 Received: from pandora.arm.linux.org.uk ([2001:4d48:ad52:3201:214:fdff:fe10:1be6]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZUGMT-0004NI-VD for linux-arm-kernel@lists.infradead.org; Tue, 25 Aug 2015 15:42:10 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=arm.linux.org.uk; s=pandora-2014; h=Date:Sender:Message-Id:Content-Type:Content-Transfer-Encoding:MIME-Version:Subject:Cc:To:From:References:In-Reply-To; bh=UkHYr/xIxAuJeWrL7vUhUXIAXiEKuRjRMIIMx5b6/nc=; b=cihUdHnkgy4VOLrRpEZmLwvX8gZN6REGE3z8IEIjW2BWj0n94wdLGhOyx/RXz3LsqQJqqoRhnzVCV3nomMhx/Sg5EImItb8p1ZEvM56wgV6/CAx04Pv8Ha6rkwtBPnocTzzBzxytKhsipfosp/sUmo2RIaouPQacJNNeymYQvo8=; Received: from e0022681537dd.dyn.arm.linux.org.uk ([fd8f:7570:feb6:1:222:68ff:fe15:37dd]:42919 helo=rmk-PC.arm.linux.org.uk) by pandora.arm.linux.org.uk with esmtpsa (TLSv1:AES128-SHA:128) (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1ZUGLz-0004NJ-Rm; Tue, 25 Aug 2015 16:41:39 +0100 Received: from rmk by rmk-PC.arm.linux.org.uk with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1ZUGLx-00080h-EP; Tue, 25 Aug 2015 16:41:37 +0100 In-Reply-To: <20150825154026.GT7557@n2100.arm.linux.org.uk> References: <20150825154026.GT7557@n2100.arm.linux.org.uk> From: Russell King To: linux-arm-kernel@lists.infradead.org Subject: [PATCH v2 04/10] ARM: domains: get rid of manager mode for user domain MIME-Version: 1.0 Content-Disposition: inline Message-Id: Date: Tue, 25 Aug 2015 16:41:37 +0100 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20150825_084210_648224_362819FF X-CRM114-Status: GOOD ( 12.94 ) X-Spam-Score: -3.3 (---) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Jeffrey Vander Stoep , Will Deacon , Nicolas Schichan , Catalin Marinas Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-5.4 required=5.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_MED,RP_MATCHES_RCVD,T_DKIM_INVALID,UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Since we switched to early trap initialisation in 94e5a85b3be0 ("ARM: earlier initialization of vectors page") we haven't been writing directly to the vectors page, and so there's no need for this domain to be in manager mode. Switch it to client mode. Signed-off-by: Russell King --- arch/arm/include/asm/domain.h | 2 +- arch/arm/kernel/traps.c | 1 - 2 files changed, 1 insertion(+), 2 deletions(-) diff --git a/arch/arm/include/asm/domain.h b/arch/arm/include/asm/domain.h index 4218f88e8f7e..08b601e69ddc 100644 --- a/arch/arm/include/asm/domain.h +++ b/arch/arm/include/asm/domain.h @@ -59,7 +59,7 @@ #define domain_val(dom,type) ((type) << (2 * (dom))) #define DACR_INIT \ - (domain_val(DOMAIN_USER, DOMAIN_MANAGER) | \ + (domain_val(DOMAIN_USER, DOMAIN_CLIENT) | \ domain_val(DOMAIN_KERNEL, DOMAIN_MANAGER) | \ domain_val(DOMAIN_TABLE, DOMAIN_MANAGER) | \ domain_val(DOMAIN_IO, DOMAIN_CLIENT)) diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c index d358226236f2..969f9d9e665f 100644 --- a/arch/arm/kernel/traps.c +++ b/arch/arm/kernel/traps.c @@ -870,7 +870,6 @@ void __init early_trap_init(void *vectors_base) kuser_init(vectors_base); flush_icache_range(vectors, vectors + PAGE_SIZE * 2); - modify_domain(DOMAIN_USER, DOMAIN_CLIENT); #else /* ifndef CONFIG_CPU_V7M */ /* * on V7-M there is no need to copy the vector table to a dedicated