From nobody Mon Feb 9 06:49:01 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=intel.com ARC-Seal: i=1; a=rsa-sha256; t=1595918323; cv=none; d=zohomail.com; s=zohoarc; b=TAvOizsfaPZOzUXr3YcPEAyW1giZ4UHKk3T1DoSE6+FCeofdvgEh477yH3412lpmgEd46mzvTCg/q5Sbxz8ApKwV4UCEQAL7RoC7aUA1iknGtDJ9oIPAHSLeRqkWGNogqY4wb2d1gZSHfHBKr8RB8Otq50iJpG3UQYdS4+Q+X6s= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1595918323; h=Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:Message-ID:References:Sender:Subject:To; bh=kzcd0DZRUQNEGBke9hd1PvVhfIrwg++oslk516NGHYU=; b=S3B2gPAzyXplLL5RxuVysPvHkPZrB0pAAQoc0WXtD7IIdt+rqw6ssq5+t15DArLJFWP5RMoMXiKvLal4Iqig2lrHYCq2c7Cpk1vhI6XIFK1WEInmaFfPKZBG4yr1Qad8l6+AFFjcmedjh2Ofxt4gq4oPqwqJok0b0CsWNC0tpvA= ARC-Authentication-Results: i=1; mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1595918323663436.10131848294554; Mon, 27 Jul 2020 23:38:43 -0700 (PDT) Received: from localhost ([::1]:35908 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1k0JG6-0007hB-3L for importer@patchew.org; Tue, 28 Jul 2020 02:38:42 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:50950) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k0J65-0001pX-Af for qemu-devel@nongnu.org; Tue, 28 Jul 2020 02:28:21 -0400 Received: from mga09.intel.com ([134.134.136.24]:37270) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k0J63-0002B0-EG for qemu-devel@nongnu.org; Tue, 28 Jul 2020 02:28:20 -0400 Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Jul 2020 23:27:57 -0700 Received: from jacob-builder.jf.intel.com ([10.7.199.155]) by fmsmga001.fm.intel.com with ESMTP; 27 Jul 2020 23:27:57 -0700 IronPort-SDR: L2PAyOZYRHL8U6Df2/RDB2qp2kR5XVTCV+dnGwCTH3zGrdEN9mxNGruQypB8Amkd0L/zDvA9xp e/B0J5NWzvUw== X-IronPort-AV: E=McAfee;i="6000,8403,9695"; a="152412076" X-IronPort-AV: E=Sophos;i="5.75,405,1589266800"; d="scan'208";a="152412076" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False IronPort-SDR: LdqG82WK/VBHslQ5CCMfRI4fIkplb8kpADA9QGaeaJHnkrQCYPNOq9fUhFeUtWXQ7eOEVE6UBr P/g68B3p4smA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.75,405,1589266800"; d="scan'208";a="394233113" From: Liu Yi L To: qemu-devel@nongnu.org, alex.williamson@redhat.com, peterx@redhat.com, jasowang@redhat.com Subject: [RFC v9 24/25] intel_iommu: process PASID-based Device-TLB invalidation Date: Mon, 27 Jul 2020 23:34:17 -0700 Message-Id: <1595918058-33392-25-git-send-email-yi.l.liu@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1595918058-33392-1-git-send-email-yi.l.liu@intel.com> References: <1595918058-33392-1-git-send-email-yi.l.liu@intel.com> Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=134.134.136.24; envelope-from=yi.l.liu@intel.com; helo=mga09.intel.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/07/28 02:27:45 X-ACL-Warn: Detected OS = FreeBSD 9.x or newer [fuzzy] X-Spam_score_int: -68 X-Spam_score: -6.9 X-Spam_bar: ------ X-Spam_report: (-6.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_HI=-5, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: jean-philippe@linaro.org, kevin.tian@intel.com, yi.l.liu@intel.com, Yi Sun , Eduardo Habkost , kvm@vger.kernel.org, mst@redhat.com, jun.j.tian@intel.com, eric.auger@redhat.com, yi.y.sun@intel.com, Jacob Pan , pbonzini@redhat.com, hao.wu@intel.com, Richard Henderson , david@gibson.dropbear.id.au Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" This patch adds an empty handling for PASID-based Device-TLB invalidation. For now it is enough as it is not necessary to propagate it to host for passthru device and also there is no emulated device has device tlb. Cc: Kevin Tian Cc: Jacob Pan Cc: Peter Xu Cc: Yi Sun Cc: Paolo Bonzini Cc: Richard Henderson Cc: Eduardo Habkost Reviewed-by: Peter Xu Signed-off-by: Liu Yi L --- hw/i386/intel_iommu.c | 18 ++++++++++++++++++ hw/i386/intel_iommu_internal.h | 1 + 2 files changed, 19 insertions(+) diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c index db4460a..11f815d 100644 --- a/hw/i386/intel_iommu.c +++ b/hw/i386/intel_iommu.c @@ -3213,6 +3213,17 @@ static bool vtd_process_inv_iec_desc(IntelIOMMUState= *s, return true; } =20 +static bool vtd_process_device_piotlb_desc(IntelIOMMUState *s, + VTDInvDesc *inv_desc) +{ + /* + * no need to handle it for passthru device, for emulated + * devices with device tlb, it may be required, but for now, + * return is enough + */ + return true; +} + static bool vtd_process_device_iotlb_desc(IntelIOMMUState *s, VTDInvDesc *inv_desc) { @@ -3334,6 +3345,13 @@ static bool vtd_process_inv_desc(IntelIOMMUState *s) } break; =20 + case VTD_INV_DESC_DEV_PIOTLB: + trace_vtd_inv_desc("device-piotlb", inv_desc.hi, inv_desc.lo); + if (!vtd_process_device_piotlb_desc(s, &inv_desc)) { + return false; + } + break; + case VTD_INV_DESC_DEVICE: trace_vtd_inv_desc("device", inv_desc.hi, inv_desc.lo); if (!vtd_process_device_iotlb_desc(s, &inv_desc)) { diff --git a/hw/i386/intel_iommu_internal.h b/hw/i386/intel_iommu_internal.h index 08ff58e..9b4fc67 100644 --- a/hw/i386/intel_iommu_internal.h +++ b/hw/i386/intel_iommu_internal.h @@ -405,6 +405,7 @@ typedef union VTDInvDesc VTDInvDesc; #define VTD_INV_DESC_WAIT 0x5 /* Invalidation Wait Descripto= r */ #define VTD_INV_DESC_PIOTLB 0x6 /* PASID-IOTLB Invalidate Desc= */ #define VTD_INV_DESC_PC 0x7 /* PASID-cache Invalidate Desc= */ +#define VTD_INV_DESC_DEV_PIOTLB 0x8 /* PASID-based-DIOTLB inv_desc= */ #define VTD_INV_DESC_NONE 0 /* Not an Invalidate Descripto= r */ =20 /* Masks for Invalidation Wait Descriptor*/ --=20 2.7.4