From nobody Mon Feb 9 04:46:04 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1518463548263140.17808037197688; Mon, 12 Feb 2018 11:25:48 -0800 (PST) Received: from localhost ([::1]:41479 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1elJjT-0006hS-Fj for importer@patchew.org; Mon, 12 Feb 2018 14:25:43 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:49089) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1elJLV-0001pX-MA for qemu-devel@nongnu.org; Mon, 12 Feb 2018 14:01:02 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1elJLU-0006Ex-RS for qemu-devel@nongnu.org; Mon, 12 Feb 2018 14:00:57 -0500 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:37576 helo=mx1.redhat.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1elJLN-00061M-B1; Mon, 12 Feb 2018 14:00:49 -0500 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.rdu2.redhat.com [10.11.54.3]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id B07AF83155; Mon, 12 Feb 2018 19:00:48 +0000 (UTC) Received: from AMD.redhat.com (ovpn-116-182.ams2.redhat.com [10.36.116.182]) by smtp.corp.redhat.com (Postfix) with ESMTP id 4F7B61227915; Mon, 12 Feb 2018 19:00:40 +0000 (UTC) From: Eric Auger To: eric.auger.pro@gmail.com, eric.auger@redhat.com, peter.maydell@linaro.org, alex.williamson@redhat.com, mst@redhat.com, qemu-arm@nongnu.org, qemu-devel@nongnu.org, jean-philippe.brucker@arm.com Date: Mon, 12 Feb 2018 18:58:21 +0000 Message-Id: <1518461904-5305-20-git-send-email-eric.auger@redhat.com> In-Reply-To: <1518461904-5305-1-git-send-email-eric.auger@redhat.com> References: <1518461904-5305-1-git-send-email-eric.auger@redhat.com> X-Scanned-By: MIMEDefang 2.78 on 10.11.54.3 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.1]); Mon, 12 Feb 2018 19:00:48 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.1]); Mon, 12 Feb 2018 19:00:48 +0000 (UTC) for IP:'10.11.54.3' DOMAIN:'int-mx03.intmail.prod.int.rdu2.redhat.com' HELO:'smtp.corp.redhat.com' FROM:'eric.auger@redhat.com' RCPT:'' X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 66.187.233.73 Subject: [Qemu-devel] [RFC v6 19/22] memory.h: Add set_page_size_mask IOMMUMemoryRegion callback X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: wei@redhat.com, kevin.tian@intel.com, marc.zyngier@arm.com, tn@semihalf.com, will.deacon@arm.com, drjones@redhat.com, peterx@redhat.com, linuc.decode@gmail.com, bharat.bhushan@nxp.com, christoffer.dall@linaro.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" This callback allows to inform the IOMMU memory region about restrictions on the supported page sizes. Signed-off-by: Eric Auger --- include/exec/memory.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/include/exec/memory.h b/include/exec/memory.h index 783ef64..1c0374f 100644 --- a/include/exec/memory.h +++ b/include/exec/memory.h @@ -208,6 +208,10 @@ typedef struct IOMMUMemoryRegionClass { IOMMUAccessFlags flag); /* Returns minimum supported page size */ uint64_t (*get_min_page_size)(IOMMUMemoryRegion *iommu); + + /* Limits the supported page sizes to @pgsizes */ + void (*set_page_size_mask)(IOMMUMemoryRegion *iommu, uint64_t pgsizes); + /* Called when IOMMU Notifier flag changed */ void (*notify_flag_changed)(IOMMUMemoryRegion *iommu, IOMMUNotifierFlag old_flags, --=20 1.9.1