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 92297C83F09 for ; Tue, 8 Jul 2025 21:13:39 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1uZFET-0006JS-Jh; Tue, 08 Jul 2025 16:48:05 -0400 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 1uZDqq-000784-I7 for qemu-devel@nongnu.org; Tue, 08 Jul 2025 15:19:38 -0400 Received: from mgamail.intel.com ([198.175.65.14]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1uZDqm-00082f-Eq for qemu-devel@nongnu.org; Tue, 08 Jul 2025 15:19:36 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1752002373; x=1783538373; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=CTUex6E1/CDtLReZCOrMYpJ0NzdK+F9clgJengK6Qgk=; b=Fm7T2kexeNfKqkK+mKfN9im9o4clfDc4dbTdb2ZHgOtRvpEug7tEenQl 5ceZ5rq04PcBi4/AkL38VX+Wxk4z1kkEzwatXZN0stSlkIRhyQUYv6z8T EIYpYT7Qp3ujmyrZ7AHe3aeLFJVk8lT1cUZVtR4Xquf/sMLIFyftxJUPL wEGyeJVzqcPNNt1IyEgAa5A0t2ovreTGMjWcXZfQMoQlVd6obpLXpzbyE /IE8//mHq9WHLt1Ia+jdbBLINiBXynggDC1R/cMS0JmFbkm1lsUO2uVKM L1adx0eVM6OJa+zsNE3OiZkeNCgjzHGS+3JmVFmKieK4Kn4KnGPsg+3dd w==; X-CSE-ConnectionGUID: Tf11lw3oRDSVIKCSa0m3kw== X-CSE-MsgGUID: fZNYLswCQZGi/8GgZBDxoQ== X-IronPort-AV: E=McAfee;i="6800,10657,11487"; a="57973923" X-IronPort-AV: E=Sophos;i="6.16,297,1744095600"; d="scan'208";a="57973923" Received: from orviesa001.jf.intel.com ([10.64.159.141]) by orvoesa106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Jul 2025 04:06:25 -0700 X-CSE-ConnectionGUID: g+Wyd9/dQCKh65lzavcOXw== X-CSE-MsgGUID: cV1TMnLMRa2p6gwB6o+EvQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.16,297,1744095600"; d="scan'208";a="192647935" Received: from unknown (HELO gnr-sp-2s-612.sh.intel.com) ([10.112.230.229]) by smtpauth.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Jul 2025 04:06:21 -0700 From: Zhenzhong Duan To: qemu-devel@nongnu.org Cc: alex.williamson@redhat.com, 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, shameerali.kolothum.thodi@huawei.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 v3 03/20] intel_iommu: Implement get_viommu_cap() callback Date: Tue, 8 Jul 2025 07:05:44 -0400 Message-ID: <20250708110601.633308-4-zhenzhong.duan@intel.com> X-Mailer: git-send-email 2.47.1 In-Reply-To: <20250708110601.633308-1-zhenzhong.duan@intel.com> References: <20250708110601.633308-1-zhenzhong.duan@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=198.175.65.14; 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_viommu_cap() callback and expose stage-1 capability for now. VFIO uses it to create nested parent domain which is further used to create nested domain in vIOMMU. All these will be implemented in following patches. Suggested-by: Yi Liu Signed-off-by: Zhenzhong Duan --- hw/i386/intel_iommu.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c index f0b1f90eff..702973da5c 100644 --- a/hw/i386/intel_iommu.c +++ b/hw/i386/intel_iommu.c @@ -24,6 +24,7 @@ #include "qemu/main-loop.h" #include "qapi/error.h" #include "hw/sysbus.h" +#include "hw/iommu.h" #include "intel_iommu_internal.h" #include "hw/pci/pci.h" #include "hw/pci/pci_bus.h" @@ -4412,6 +4413,16 @@ static void vtd_dev_unset_iommu_device(PCIBus *bus, void *opaque, int devfn) vtd_iommu_unlock(s); } +static uint64_t vtd_get_viommu_cap(void *opaque) +{ + IntelIOMMUState *s = opaque; + uint64_t caps; + + caps = s->flts ? VIOMMU_CAP_STAGE1 : 0; + + return caps; +} + /* Unmap the whole range in the notifier's scope. */ static void vtd_address_space_unmap(VTDAddressSpace *as, IOMMUNotifier *n) { @@ -4734,6 +4745,7 @@ static PCIIOMMUOps vtd_iommu_ops = { .get_address_space = vtd_host_dma_iommu, .set_iommu_device = vtd_dev_set_iommu_device, .unset_iommu_device = vtd_dev_unset_iommu_device, + .get_viommu_cap = vtd_get_viommu_cap, }; static bool vtd_decide_config(IntelIOMMUState *s, Error **errp) -- 2.47.1