From nobody Sat Nov 15 12:49:57 2025 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=pass(p=none dis=none) header.from=nongnu.org ARC-Seal: i=1; a=rsa-sha256; t=1752512293; cv=none; d=zohomail.com; s=zohoarc; b=OA0mJ77pxxCzAnBF9bX64omr6HjL6tABFo9CpzDTVEfNcUeZMtP3UCqsGo6uG4Thaa2/ue8ascwWgTme68S/P7HNCK6B3Hhtjkl0gjLo8k95fkwHUcPFnALuwPHsRk8G+7ylGAo5VFE/v6yGpRdMnjaG1QsFmuAzMu18JjO4O9E= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1752512293; h=Content-Type:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:Reply-To:Reply-To:References:Sender:Subject:Subject:To:To:Message-Id; bh=FIkKck/AAFntbDEbzSJaz1rzSDh/yrK3Ecn79gYZERA=; b=R8VJafu+3iJ1eeIMiWEmyYFGLVx1GdDhUXuGsKbwOCG811r3FBnb4lHBBd3bvXdwJC6n1xTOCt1jfCRQjhMIS9DdrlVAWKT1COGxBCYhtR52HlRZTE6FcXvfQBHUC7PGhttfOIV2Ng4IswFYimMG5D06c6tbgxDybYUSymcJMXQ= 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=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1752512293507812.2550877720331; Mon, 14 Jul 2025 09:58:13 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ubMUe-0006n2-Ip; Mon, 14 Jul 2025 12:57:32 -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 1ubLbW-0004vM-NM; Mon, 14 Jul 2025 12:00:36 -0400 Received: from [185.176.79.56] (helo=frasgout.his.huawei.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ubLbU-00082r-5c; Mon, 14 Jul 2025 12:00:33 -0400 Received: from mail.maildlp.com (unknown [172.18.186.31]) by frasgout.his.huawei.com (SkyGuard) with ESMTP id 4bgn7W1cgPz6L5NT; Mon, 14 Jul 2025 23:59:19 +0800 (CST) Received: from frapeml500008.china.huawei.com (unknown [7.182.85.71]) by mail.maildlp.com (Postfix) with ESMTPS id 246E8140142; Tue, 15 Jul 2025 00:00:24 +0800 (CST) Received: from A2303104131.china.huawei.com (10.203.177.241) by frapeml500008.china.huawei.com (7.182.85.71) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.39; Mon, 14 Jul 2025 18:00:15 +0200 To: , CC: , , , , , , , , , , , , , , , Subject: [RFC PATCH v3 01/15] backends/iommufd: Introduce iommufd_backend_alloc_viommu Date: Mon, 14 Jul 2025 16:59:27 +0100 Message-ID: <20250714155941.22176-2-shameerali.kolothum.thodi@huawei.com> X-Mailer: git-send-email 2.12.0.windows.1 In-Reply-To: <20250714155941.22176-1-shameerali.kolothum.thodi@huawei.com> References: <20250714155941.22176-1-shameerali.kolothum.thodi@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.203.177.241] X-ClientProxiedBy: kwepems500002.china.huawei.com (7.221.188.17) To frapeml500008.china.huawei.com (7.182.85.71) X-Host-Lookup-Failed: Reverse DNS lookup failed for 185.176.79.56 (deferred) 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=185.176.79.56; envelope-from=shameerali.kolothum.thodi@huawei.com; helo=frasgout.his.huawei.com X-Spam_score_int: -33 X-Spam_score: -3.4 X-Spam_bar: --- X-Spam_report: (-3.4 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RDNS_NONE=0.793, 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: , Reply-to: Shameer Kolothum From: Shameer Kolothum via Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZM-MESSAGEID: 1752512294947116600 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Nicolin Chen Add a helper to allocate a viommu object. Signed-off-by: Nicolin Chen Reviewed-by: Eric Auger Signed-off-by: Shameer Kolothum --- backends/iommufd.c | 25 +++++++++++++++++++++++++ backends/trace-events | 1 + include/system/iommufd.h | 4 ++++ 3 files changed, 30 insertions(+) diff --git a/backends/iommufd.c b/backends/iommufd.c index 2a33c7ab0b..f3b95ee321 100644 --- a/backends/iommufd.c +++ b/backends/iommufd.c @@ -446,6 +446,31 @@ bool iommufd_backend_invalidate_cache(IOMMUFDBackend *= be, uint32_t id, return !ret; } =20 +bool iommufd_backend_alloc_viommu(IOMMUFDBackend *be, uint32_t dev_id, + uint32_t viommu_type, uint32_t hwpt_id, + uint32_t *out_viommu_id, Error **errp) +{ + int ret, fd =3D be->fd; + struct iommu_viommu_alloc alloc_viommu =3D { + .size =3D sizeof(alloc_viommu), + .type =3D viommu_type, + .dev_id =3D dev_id, + .hwpt_id =3D hwpt_id, + }; + + ret =3D ioctl(fd, IOMMU_VIOMMU_ALLOC, &alloc_viommu); + + trace_iommufd_backend_alloc_viommu(fd, viommu_type, dev_id, hwpt_id, + alloc_viommu.out_viommu_id, ret); + if (ret) { + error_setg_errno(errp, errno, "IOMMU_VIOMMU_ALLOC failed"); + return false; + } + + *out_viommu_id =3D alloc_viommu.out_viommu_id; + return true; +} + bool host_iommu_device_iommufd_attach_hwpt(HostIOMMUDeviceIOMMUFD *idev, uint32_t hwpt_id, Error **errp) { diff --git a/backends/trace-events b/backends/trace-events index 56132d3fd2..2294af2cc8 100644 --- a/backends/trace-events +++ b/backends/trace-events @@ -21,3 +21,4 @@ iommufd_backend_free_id(int iommufd, uint32_t id, int ret= ) " iommufd=3D%d id=3D%d (% iommufd_backend_set_dirty(int iommufd, uint32_t hwpt_id, bool start, int r= et) " iommufd=3D%d hwpt=3D%u enable=3D%d (%d)" iommufd_backend_get_dirty_bitmap(int iommufd, uint32_t hwpt_id, uint64_t i= ova, uint64_t size, uint64_t page_size, int ret) " iommufd=3D%d hwpt=3D%u i= ova=3D0x%"PRIx64" size=3D0x%"PRIx64" page_size=3D0x%"PRIx64" (%d)" iommufd_backend_invalidate_cache(int iommufd, uint32_t id, uint32_t data_t= ype, uint32_t entry_len, uint32_t entry_num, uint32_t done_num, uint64_t da= ta_ptr, int ret) " iommufd=3D%d id=3D%u data_type=3D%u entry_len=3D%u entry= _num=3D%u done_num=3D%u data_ptr=3D0x%"PRIx64" (%d)" +iommufd_backend_alloc_viommu(int iommufd, uint32_t type, uint32_t dev_id, = uint32_t hwpt_id, uint32_t viommu_id, int ret) " iommufd=3D%d type=3D%u dev= _id=3D%u hwpt_id=3D%u viommu_id=3D%u (%d)" diff --git a/include/system/iommufd.h b/include/system/iommufd.h index c9c72ffc45..9acdb20032 100644 --- a/include/system/iommufd.h +++ b/include/system/iommufd.h @@ -59,6 +59,10 @@ bool iommufd_backend_alloc_hwpt(IOMMUFDBackend *be, uint= 32_t dev_id, uint32_t data_type, uint32_t data_len, void *data_ptr, uint32_t *out_hwpt, Error **errp); +bool iommufd_backend_alloc_viommu(IOMMUFDBackend *be, uint32_t dev_id, + uint32_t viommu_type, uint32_t hwpt_id, + uint32_t *out_hwpt, Error **errp); + bool iommufd_backend_set_dirty_tracking(IOMMUFDBackend *be, uint32_t hwpt_= id, bool start, Error **errp); bool iommufd_backend_get_dirty_bitmap(IOMMUFDBackend *be, uint32_t hwpt_id, --=20 2.34.1