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=-7.5 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 244DCC43441 for ; Mon, 19 Nov 2018 16:39:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id DD1A82145D for ; Mon, 19 Nov 2018 16:39:14 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="sTJFa5UC" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DD1A82145D Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linuxfoundation.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732676AbeKTDDV (ORCPT ); Mon, 19 Nov 2018 22:03:21 -0500 Received: from mail.kernel.org ([198.145.29.99]:35896 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731712AbeKTDDU (ORCPT ); Mon, 19 Nov 2018 22:03:20 -0500 Received: from localhost (5356596B.cm-6-7b.dynamic.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 44F81208E4; Mon, 19 Nov 2018 16:39:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1542645550; bh=XQDhcbhziunePN/yrxo4k9WDvIuhv6U4Sl1tt/RZnaI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=sTJFa5UCO5XogPA/Px9Qhypsv6GcOBScjIdgDgnLH+b4wx6X3BdqX1bO1hPN9krI2 eIRPBbz6N2PJYbWthxxdfv/E+KsYxhXX/9HR5Mk7gk9ntQrgtMffxd0irZRr8GsjyJ VqcPtZlAOY2JxM+E85kKfNqkuqXbbQPj4VUPYKVk= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Stefano Stabellini , Juergen Gross , Jeff.Kubascik@dornerworks.com, Jarvis.Roach@dornerworks.com, Nathan.Studer@dornerworks.com, vkuznets@redhat.com, boris.ostrovsky@oracle.com, julien.grall@arm.com Subject: [PATCH 4.19 205/205] CONFIG_XEN_PV breaks xen_create_contiguous_region on ARM Date: Mon, 19 Nov 2018 17:28:32 +0100 Message-Id: <20181119162642.972489706@linuxfoundation.org> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20181119162616.586062722@linuxfoundation.org> References: <20181119162616.586062722@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review 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 4.19-stable review patch. If anyone has any objections, please let me know. ------------------ From: Stefano Stabellini commit f9005571701920551bcf54a500973fb61f2e1eda upstream. xen_create_contiguous_region has now only an implementation if CONFIG_XEN_PV is defined. However, on ARM we never set CONFIG_XEN_PV but we do have an implementation of xen_create_contiguous_region which is required for swiotlb-xen to work correctly (although it just sets *dma_handle). [backport: remove change to xen_remap_pfn] Cc: # 4.12 Fixes: 16624390816c ("xen: create xen_create/destroy_contiguous_region() stubs for PVHVM only builds") Signed-off-by: Stefano Stabellini Reviewed-by: Juergen Gross CC: Jeff.Kubascik@dornerworks.com CC: Jarvis.Roach@dornerworks.com CC: Nathan.Studer@dornerworks.com CC: vkuznets@redhat.com CC: boris.ostrovsky@oracle.com CC: jgross@suse.com CC: julien.grall@arm.com Signed-off-by: Juergen Gross Signed-off-by: Greg Kroah-Hartman --- include/xen/xen-ops.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/include/xen/xen-ops.h +++ b/include/xen/xen-ops.h @@ -41,7 +41,7 @@ int xen_setup_shutdown_event(void); extern unsigned long *xen_contiguous_bitmap; -#ifdef CONFIG_XEN_PV +#if defined(CONFIG_XEN_PV) || defined(CONFIG_ARM) || defined(CONFIG_ARM64) int xen_create_contiguous_region(phys_addr_t pstart, unsigned int order, unsigned int address_bits, dma_addr_t *dma_handle);