From nobody Mon Feb 9 19:08:54 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zohomail.com: domain of lists.xenproject.org designates 192.237.175.120 as permitted sender) client-ip=192.237.175.120; envelope-from=xen-devel-bounces@lists.xenproject.org; helo=lists.xenproject.org; Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Return-Path: Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) by mx.zohomail.com with SMTPS id 1698413845730220.41986178637796; Fri, 27 Oct 2023 06:37:25 -0700 (PDT) Received: from list by lists.xenproject.org with outflank-mailman.624411.973015 (Exim 4.92) (envelope-from ) id 1qwN1N-0005mt-Li; Fri, 27 Oct 2023 13:37:05 +0000 Received: by outflank-mailman (output) from mailman id 624411.973015; Fri, 27 Oct 2023 13:37:05 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1qwN1N-0005mE-Bu; Fri, 27 Oct 2023 13:37:05 +0000 Received: by outflank-mailman (input) for mailman id 624411; Fri, 27 Oct 2023 13:37:04 +0000 Received: from se1-gles-sth1-in.inumbo.com ([159.253.27.254] helo=se1-gles-sth1.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1qwN1M-0005Xh-G3 for xen-devel@lists.xenproject.org; Fri, 27 Oct 2023 13:37:04 +0000 Received: from support.bugseng.com (mail.bugseng.com [162.55.131.47]) by se1-gles-sth1.inumbo.com (Halon) with ESMTPS id e9d4b4ab-74cd-11ee-98d6-6d05b1d4d9a1; Fri, 27 Oct 2023 15:37:03 +0200 (CEST) Received: from nico.bugseng.com (unknown [147.123.100.131]) by support.bugseng.com (Postfix) with ESMTPSA id AEC5D4EE0C81; Fri, 27 Oct 2023 15:37:02 +0200 (CEST) X-Outflank-Mailman: Message body and most headers restored to incoming version X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: e9d4b4ab-74cd-11ee-98d6-6d05b1d4d9a1 From: Nicola Vetrini To: xen-devel@lists.xenproject.org Cc: sstabellini@kernel.org, michal.orzel@amd.com, xenia.ragiadakou@amd.com, ayan.kumar.halder@amd.com, consulting@bugseng.com, jbeulich@suse.com, andrew.cooper3@citrix.com, roger.pau@citrix.com, Nicola Vetrini , Paul Durrant Subject: [XEN PATCH][for-4.19 v2 2/2] xen/iommu: use ISOLATE_LOW_BIT to wrap a violation of Rule 10.1 Date: Fri, 27 Oct 2023 15:36:56 +0200 Message-Id: <6a1590b0d002641fe8dc53a2368ab8c2973e4bb3.1698413073.git.nicola.vetrini@bugseng.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ZM-MESSAGEID: 1698413846231100001 Content-Type: text/plain; charset="utf-8" No functional change. Signed-off-by: Nicola Vetrini Reviewed-by: Stefano Stabellini Acked-by: Jan Beulich --- Changes in v2: - Changed macro name --- xen/drivers/passthrough/iommu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/xen/drivers/passthrough/iommu.c b/xen/drivers/passthrough/iomm= u.c index f9a9f53dbd44..894e4fd2f43b 100644 --- a/xen/drivers/passthrough/iommu.c +++ b/xen/drivers/passthrough/iommu.c @@ -560,7 +560,7 @@ int __init iommu_setup(void) rc =3D iommu_hardware_setup(); if ( !rc ) ops =3D iommu_get_ops(); - if ( ops && (ops->page_sizes & -ops->page_sizes) !=3D PAGE_SIZE ) + if ( ops && (ISOLATE_LOW_BIT(ops->page_sizes)) !=3D PAGE_SIZE ) { printk(XENLOG_ERR "IOMMU: page size mask %lx unsupported\n", ops->page_sizes); --=20 2.34.1