From nobody Wed Nov 5 18:34:59 2025 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 (208.118.235.17 [208.118.235.17]) by mx.zohomail.com with SMTPS id 1538192285331326.2515430825946; Fri, 28 Sep 2018 20:38:05 -0700 (PDT) Received: from localhost ([::1]:49317 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1g664o-0003wF-Pw for importer@patchew.org; Fri, 28 Sep 2018 23:37:54 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:47591) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1g663T-0002Wt-AZ for qemu-devel@nongnu.org; Fri, 28 Sep 2018 23:36:31 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1g663S-0005ok-M3 for qemu-devel@nongnu.org; Fri, 28 Sep 2018 23:36:31 -0400 Received: from mx1.redhat.com ([209.132.183.28]:48256) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1g663S-0005oZ-GL for qemu-devel@nongnu.org; Fri, 28 Sep 2018 23:36:30 -0400 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id C1B48D5715 for ; Sat, 29 Sep 2018 03:36:29 +0000 (UTC) Received: from xz-x1.nay.redhat.com (dhcp-14-128.nay.redhat.com [10.66.14.128]) by smtp.corp.redhat.com (Postfix) with ESMTP id 86C07106223F; Sat, 29 Sep 2018 03:36:27 +0000 (UTC) From: Peter Xu To: qemu-devel@nongnu.org Date: Sat, 29 Sep 2018 11:36:14 +0800 Message-Id: <20180929033615.4257-2-peterx@redhat.com> In-Reply-To: <20180929033615.4257-1-peterx@redhat.com> References: <20180929033615.4257-1-peterx@redhat.com> X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.38]); Sat, 29 Sep 2018 03:36:29 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH v4 1/2] intel_iommu: introduce vtd_reset_caches() 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: Eric Auger , Alex Williamson , Jason Wang , peterx@redhat.com, "Michael S . Tsirkin" Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RDMRC_1 RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Provide the function and use it in vtd_init(). Used to reset both context entry cache and iotlb cache for the whole IOMMU unit. Signed-off-by: Peter Xu --- hw/i386/intel_iommu.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c index 3dfada19a6..1137861a9d 100644 --- a/hw/i386/intel_iommu.c +++ b/hw/i386/intel_iommu.c @@ -227,6 +227,14 @@ static void vtd_reset_iotlb(IntelIOMMUState *s) vtd_iommu_unlock(s); } =20 +static void vtd_reset_caches(IntelIOMMUState *s) +{ + vtd_iommu_lock(s); + vtd_reset_iotlb_locked(s); + vtd_reset_context_cache_locked(s); + vtd_iommu_unlock(s); +} + static uint64_t vtd_get_iotlb_key(uint64_t gfn, uint16_t source_id, uint32_t level) { @@ -3160,10 +3168,7 @@ static void vtd_init(IntelIOMMUState *s) s->cap |=3D VTD_CAP_CM; } =20 - vtd_iommu_lock(s); - vtd_reset_context_cache_locked(s); - vtd_reset_iotlb_locked(s); - vtd_iommu_unlock(s); + vtd_reset_caches(s); =20 /* Define registers with default values and bit semantics */ vtd_define_long(s, DMAR_VER_REG, 0x10UL, 0, 0); --=20 2.17.1