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 Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id F2620CEACEF for ; Mon, 17 Nov 2025 09:41:04 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1vKvic-0005d0-8p; Mon, 17 Nov 2025 04:40:18 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1vKviT-0005Fp-Ro for qemu-devel@nongnu.org; Mon, 17 Nov 2025 04:40:11 -0500 Received: from mgamail.intel.com ([192.198.163.9]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1vKviO-0006Kp-JX for qemu-devel@nongnu.org; Mon, 17 Nov 2025 04:40:08 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1763372405; x=1794908405; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=OkrsG+esTKod4mdcx5QKPDhC8H4DEd9zDUZfqRFMN4U=; b=UbKiL2bufxEuyg+XvHdhjMm8PZ936KxqDptDgIXb81+lH6upFcp2n4q/ 239uoceVSXOMfqLxFvtQ0lBEUZyUt9M0DuYJUnk98aUUzr8Fa+RrZ+J1r hlHDaMMspQxShuwz9KyuiiMdZ2XxGkyoO29D4rPl5FmyDUIYRRLowv5ja fS+Pu0KZw2Vo1hR6SYP6EtRdmOWMYLFo6a6QPqDtdFRzlIYkUtROLic9n GEmEWrqSXEX1X7r/ZfNtmbzHydBw/KGZJ7CX+3K5Wy2fjn1rkhOa1o1Pl cQyAL9Upga5sL1uAKR0hF1d3qtydCHuaM8vwAFg2bHfdOs3O8J5EDqoo6 g==; X-CSE-ConnectionGUID: 1QPRjCzMQYWwSlRu+fpDLw== X-CSE-MsgGUID: TTS/3A13SuO4E9DLj3gluA== X-IronPort-AV: E=McAfee;i="6800,10657,11615"; a="76046089" X-IronPort-AV: E=Sophos;i="6.19,311,1754982000"; d="scan'208";a="76046089" Received: from fmviesa007.fm.intel.com ([10.60.135.147]) by fmvoesa103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 Nov 2025 01:39:51 -0800 X-CSE-ConnectionGUID: hMKXZCzEQNWz/U4xmtv9sg== X-CSE-MsgGUID: 8eYwztzuS6O7NdD/hZEfzA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.19,311,1754982000"; d="scan'208";a="190071002" Received: from unknown (HELO gnr-sp-2s-612.sh.intel.com) ([10.112.230.229]) by fmviesa007-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 Nov 2025 01:39:47 -0800 From: Zhenzhong Duan To: qemu-devel@nongnu.org Cc: alex@shazbot.org, clg@redhat.com, eric.auger@redhat.com, mst@redhat.com, jasowang@redhat.com, peterx@redhat.com, ddutile@redhat.com, jgg@nvidia.com, nicolinc@nvidia.com, skolothumtho@nvidia.com, joao.m.martins@oracle.com, clement.mathieu--drif@eviden.com, kevin.tian@intel.com, yi.l.liu@intel.com, chao.p.peng@intel.com, Zhenzhong Duan Subject: [PATCH v8 20/23] intel_iommu_accel: Implement get_host_iommu_quirks() callback Date: Mon, 17 Nov 2025 04:37:23 -0500 Message-ID: <20251117093729.1121324-21-zhenzhong.duan@intel.com> X-Mailer: git-send-email 2.47.1 In-Reply-To: <20251117093729.1121324-1-zhenzhong.duan@intel.com> References: <20251117093729.1121324-1-zhenzhong.duan@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=192.198.163.9; envelope-from=zhenzhong.duan@intel.com; helo=mgamail.intel.com X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, 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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Implement get_host_iommu_quirks() callback to retrieve the vendor specific hardware information data and convert it into bitmaps defined with enum host_iommu_quirks. It will be used by VFIO in subsequent patch. Suggested-by: Eric Auger Suggested-by: Nicolin Chen Signed-off-by: Zhenzhong Duan --- hw/i386/intel_iommu_accel.h | 5 +++++ hw/i386/intel_iommu.c | 2 ++ hw/i386/intel_iommu_accel.c | 21 +++++++++++++++++++++ 3 files changed, 28 insertions(+) diff --git a/hw/i386/intel_iommu_accel.h b/hw/i386/intel_iommu_accel.h index 76862310c2..c7ad6daa87 100644 --- a/hw/i386/intel_iommu_accel.h +++ b/hw/i386/intel_iommu_accel.h @@ -20,6 +20,7 @@ bool vtd_bind_guest_pasid(VTDAddressSpace *vtd_as, Error **errp); void vtd_flush_host_piotlb_all_locked(IntelIOMMUState *s, uint16_t domain_id, uint32_t pasid, hwaddr addr, uint64_t npages, bool ih); +void vtd_iommu_ops_update_accel(PCIIOMMUOps *ops); #else static inline bool vtd_check_hiod_accel(IntelIOMMUState *s, VTDHostIOMMUDevice *vtd_hiod, @@ -46,5 +47,9 @@ static inline void vtd_flush_host_piotlb_all_locked(IntelIOMMUState *s, uint64_t npages, bool ih) { } + +static inline void vtd_iommu_ops_update_accel(PCIIOMMUOps *ops) +{ +} #endif #endif diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c index 269b7da958..33ed11e207 100644 --- a/hw/i386/intel_iommu.c +++ b/hw/i386/intel_iommu.c @@ -5590,6 +5590,8 @@ static void vtd_class_init(ObjectClass *klass, const void *data) x86_class->int_remap = vtd_int_remap; set_bit(DEVICE_CATEGORY_MISC, dc->categories); dc->desc = "Intel IOMMU (VT-d) DMA Remapping device"; + + vtd_iommu_ops_update_accel(&vtd_iommu_ops); } static const TypeInfo vtd_info = { diff --git a/hw/i386/intel_iommu_accel.c b/hw/i386/intel_iommu_accel.c index 41d0e4107b..700284864d 100644 --- a/hw/i386/intel_iommu_accel.c +++ b/hw/i386/intel_iommu_accel.c @@ -12,6 +12,7 @@ #include "system/iommufd.h" #include "intel_iommu_internal.h" #include "intel_iommu_accel.h" +#include "hw/iommu.h" #include "hw/pci/pci_bus.h" #include "trace.h" @@ -251,3 +252,23 @@ void vtd_flush_host_piotlb_all_locked(IntelIOMMUState *s, uint16_t domain_id, g_hash_table_foreach(s->vtd_address_spaces, vtd_flush_host_piotlb_locked, &piotlb_info); } + +static uint64_t vtd_get_host_iommu_quirks(uint32_t type, + void *caps, uint32_t size) +{ + struct iommu_hw_info_vtd *vtd = caps; + uint64_t quirks = 0; + + if (type == IOMMU_HW_INFO_TYPE_INTEL_VTD && + sizeof(struct iommu_hw_info_vtd) <= size && + vtd->flags & IOMMU_HW_INFO_VTD_ERRATA_772415_SPR17) { + quirks |= HOST_IOMMU_QUIRK_NESTING_PARENT_BYPASS_RO; + } + + return quirks; +} + +void vtd_iommu_ops_update_accel(PCIIOMMUOps *ops) +{ + ops->get_host_iommu_quirks = vtd_get_host_iommu_quirks; +} -- 2.47.1