From nobody Thu Sep 19 01:22:16 2024 Delivered-To: importer2@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer2=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1719264405; cv=none; d=zohomail.com; s=zohoarc; b=ilzJWLcOixqiIZqbNe2tdeN0wCqHcqFrOYxEjq1iq5XkgSKjaJVbuAhmJnXRvVe8vnkv2CRAK5FP/0ovsFfurbPshZltQmqjHWTZGKrGMbVrVzFKsADxbnoOSfwLmANF9xJR/1AgiUWYznFWp0e+H+kuRpva9JcVvyZKdvt5LtU= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1719264405; h=Content-Transfer-Encoding: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:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=Gt4LSda84qiplTXZmb+DgJFJ0VOimsCowtEZX0jfUMo=; b=C6S589dDwJ55SCzDDLT2VSM7+eIQ95Pt/+3wzgHxdOaWykZlXaBESZNfbrkWCRtNKzQa7lOA/OnRng/8dauA+t7G5W46sd2CAAptfpMdDaJUHalBZjdYo1kLkCnOKc5YHuW9Kf2dnH9pm52d0g7K9MucVD2CSxjOiy8fquHyXog= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer2=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 1719264405606464.77070536588235; Mon, 24 Jun 2024 14:26:45 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sLrBo-0002ld-Fz; Mon, 24 Jun 2024 17:25:28 -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 1sLrBm-0002lS-Pg for qemu-devel@nongnu.org; Mon, 24 Jun 2024 17:25:26 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sLrBl-0006b1-DL for qemu-devel@nongnu.org; Mon, 24 Jun 2024 17:25:26 -0400 Received: from mx-prod-mc-02.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-644-pt2HL4UwPAOhtvSM-t8pmQ-1; Mon, 24 Jun 2024 17:25:22 -0400 Received: from mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.17]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-02.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id EB4711956096; Mon, 24 Jun 2024 21:25:20 +0000 (UTC) Received: from corto.redhat.com (unknown [10.39.192.49]) by mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 34C541956051; Mon, 24 Jun 2024 21:25:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1719264323; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Gt4LSda84qiplTXZmb+DgJFJ0VOimsCowtEZX0jfUMo=; b=hlVBEwysrL5wRHgTZmymH7ZMjJkWaNnjp+egAlCeqFC/AWjI/UHn7TYLssWsQpm8TP4FBy mRLfZcCuFRz/Z65fqHR2INiI9/K58hPlr1TFRVI0ikPrB6MIXyCAgq+cRGDgJqukEM/asI ZFD8VFQHWEFGqGoNMWnvD/4A+EyOe0A= X-MC-Unique: pt2HL4UwPAOhtvSM-t8pmQ-1 From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= To: qemu-devel@nongnu.org Cc: Alex Williamson , Zhenzhong Duan , Yi Liu , Yi Sun , Eric Auger , "Michael S . Tsirkin" Subject: [PULL 07/42] backends/iommufd: Introduce helper function iommufd_backend_get_device_info() Date: Mon, 24 Jun 2024 23:24:21 +0200 Message-ID: <20240624212456.350919-8-clg@redhat.com> In-Reply-To: <20240624212456.350919-1-clg@redhat.com> References: <20240624212456.350919-1-clg@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.0 on 10.30.177.17 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+importer2=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.133.124; envelope-from=clg@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: 10 X-Spam_score: 1.0 X-Spam_bar: + X-Spam_report: (1.0 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.207, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_SBL_CSS=3.335, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no 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+importer2=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer2=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1719264406616100003 Content-Type: text/plain; charset="utf-8" From: Zhenzhong Duan Introduce a helper function iommufd_backend_get_device_info() to get host IOMMU related information through iommufd uAPI. Signed-off-by: Yi Liu Signed-off-by: Yi Sun Signed-off-by: Zhenzhong Duan Reviewed-by: Eric Auger Reviewed-by: Michael S. Tsirkin --- include/sysemu/iommufd.h | 3 +++ backends/iommufd.c | 22 ++++++++++++++++++++++ 2 files changed, 25 insertions(+) diff --git a/include/sysemu/iommufd.h b/include/sysemu/iommufd.h index f6e6d6e1f9f4e9b1c581100912e4864b08c9ed7d..9edfec604595c7ed0e4032472bb= 73c9b4d2ea559 100644 --- a/include/sysemu/iommufd.h +++ b/include/sysemu/iommufd.h @@ -47,6 +47,9 @@ int iommufd_backend_map_dma(IOMMUFDBackend *be, uint32_t = ioas_id, hwaddr iova, ram_addr_t size, void *vaddr, bool readonly); int iommufd_backend_unmap_dma(IOMMUFDBackend *be, uint32_t ioas_id, hwaddr iova, ram_addr_t size); +bool iommufd_backend_get_device_info(IOMMUFDBackend *be, uint32_t devid, + uint32_t *type, void *data, uint32_t = len, + Error **errp); =20 #define TYPE_HOST_IOMMU_DEVICE_IOMMUFD TYPE_HOST_IOMMU_DEVICE "-iommufd" #endif diff --git a/backends/iommufd.c b/backends/iommufd.c index 012f18d8d802aea40798fe3368bbdca52634f95d..c7e969d6f76dff8780efedde56b= 2015b3b8d616e 100644 --- a/backends/iommufd.c +++ b/backends/iommufd.c @@ -208,6 +208,28 @@ int iommufd_backend_unmap_dma(IOMMUFDBackend *be, uint= 32_t ioas_id, return ret; } =20 +bool iommufd_backend_get_device_info(IOMMUFDBackend *be, uint32_t devid, + uint32_t *type, void *data, uint32_t = len, + Error **errp) +{ + struct iommu_hw_info info =3D { + .size =3D sizeof(info), + .dev_id =3D devid, + .data_len =3D len, + .data_uptr =3D (uintptr_t)data, + }; + + if (ioctl(be->fd, IOMMU_GET_HW_INFO, &info)) { + error_setg_errno(errp, errno, "Failed to get hardware info"); + return false; + } + + g_assert(type); + *type =3D info.out_data_type; + + return true; +} + static const TypeInfo types[] =3D { { .name =3D TYPE_IOMMUFD_BACKEND, --=20 2.45.2