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=-6.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 9CEFCC04E53 for ; Wed, 15 May 2019 12:15:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6ECC421473 for ; Wed, 15 May 2019 12:15:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1557922521; bh=hHBb+FhQureF1N1HjVTrbIcBV14npfrIhCUIRJImmso=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=EMITG4IqcFpgRIJ6eBZsbaAp/oZlSZ2IJLscFsB4qhh/Xlof97ykkjIRul1n+2TMJ wnpyF9CvG/5cyNVih4gmNrhKeyPB5uvmqBYt475eAybSHzMC5cPOKpMx0uBCuzPMnu vC2wVBfNlIWwwkfLy0u/ofeh+ZI6CG+dvGLN/6j4= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728213AbfEOLDh (ORCPT ); Wed, 15 May 2019 07:03:37 -0400 Received: from mail.kernel.org ([198.145.29.99]:32882 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727570AbfEOLDe (ORCPT ); Wed, 15 May 2019 07:03:34 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (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 17C2320881; Wed, 15 May 2019 11:03:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1557918213; bh=hHBb+FhQureF1N1HjVTrbIcBV14npfrIhCUIRJImmso=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=hivoYZePCoveDNrjqgboGMZ8bghx0HLr2eagw0d2zO++MatI+3OlqAburiUjXPRqd RxTDo9WSDhQGreeUrsSBcaH6NCloEWGcFIbE0nszpUNWGvEntN20YfNkq6HZPZq6fx LPArR9zlvjUn1hKXwLFu51Fq1HlH17RJx8P3Sb+M= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Diana Craciun , Michael Ellerman Subject: [PATCH 4.4 048/266] powerpc/64: Call setup_barrier_nospec() from setup_arch() Date: Wed, 15 May 2019 12:52:35 +0200 Message-Id: <20190515090724.080983555@linuxfoundation.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190515090722.696531131@linuxfoundation.org> References: <20190515090722.696531131@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Michael Ellerman commit af375eefbfb27cbb5b831984e66d724a40d26b5c upstream. Currently we require platform code to call setup_barrier_nospec(). But if we add an empty definition for the !CONFIG_PPC_BARRIER_NOSPEC case then we can call it in setup_arch(). Signed-off-by: Diana Craciun Signed-off-by: Michael Ellerman Signed-off-by: Greg Kroah-Hartman --- arch/powerpc/include/asm/setup.h | 4 ++++ arch/powerpc/kernel/setup_32.c | 2 ++ arch/powerpc/kernel/setup_64.c | 2 ++ arch/powerpc/platforms/powernv/setup.c | 1 - arch/powerpc/platforms/pseries/setup.c | 1 - 5 files changed, 8 insertions(+), 2 deletions(-) --- a/arch/powerpc/include/asm/setup.h +++ b/arch/powerpc/include/asm/setup.h @@ -38,7 +38,11 @@ enum l1d_flush_type { void setup_rfi_flush(enum l1d_flush_type, bool enable); void do_rfi_flush_fixups(enum l1d_flush_type types); +#ifdef CONFIG_PPC_BARRIER_NOSPEC void setup_barrier_nospec(void); +#else +static inline void setup_barrier_nospec(void) { }; +#endif void do_barrier_nospec_fixups(bool enable); extern bool barrier_nospec_enabled; --- a/arch/powerpc/kernel/setup_32.c +++ b/arch/powerpc/kernel/setup_32.c @@ -322,6 +322,8 @@ void __init setup_arch(char **cmdline_p) ppc_md.setup_arch(); if ( ppc_md.progress ) ppc_md.progress("arch: exit", 0x3eab); + setup_barrier_nospec(); + paging_init(); /* Initialize the MMU context management stuff */ --- a/arch/powerpc/kernel/setup_64.c +++ b/arch/powerpc/kernel/setup_64.c @@ -736,6 +736,8 @@ void __init setup_arch(char **cmdline_p) if (ppc_md.setup_arch) ppc_md.setup_arch(); + setup_barrier_nospec(); + paging_init(); /* Initialize the MMU context management stuff */ --- a/arch/powerpc/platforms/powernv/setup.c +++ b/arch/powerpc/platforms/powernv/setup.c @@ -123,7 +123,6 @@ static void pnv_setup_rfi_flush(void) security_ftr_enabled(SEC_FTR_L1D_FLUSH_HV)); setup_rfi_flush(type, enable); - setup_barrier_nospec(); } static void __init pnv_setup_arch(void) --- a/arch/powerpc/platforms/pseries/setup.c +++ b/arch/powerpc/platforms/pseries/setup.c @@ -574,7 +574,6 @@ void pseries_setup_rfi_flush(void) security_ftr_enabled(SEC_FTR_L1D_FLUSH_PR); setup_rfi_flush(types, enable); - setup_barrier_nospec(); } static void __init pSeries_setup_arch(void)