From patchwork Fri Jun 28 09:05:55 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yi Liu X-Patchwork-Id: 13715803 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.12]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 34698153837; Fri, 28 Jun 2024 09:06:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.12 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1719565565; cv=none; b=nb2NWMQQC6+YMGlHIUCJUAnVR93REK1lgoTIaARSWVcf7KingtVyK5rpWoMPne0hjwiUGtkzs7eN5FGA8Gw737eACBOWYyg4a5Fee2fN+qt6exlmx4tGqJPKp+GBTc57Fs2SOTepdzJctIYop/HRNU2ngwdkBMdvVLmCGzjrOvw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1719565565; c=relaxed/simple; bh=6KplxLnkxXhaTu+Rm36QZZfbkAxa8vrWYEkYUVuXQtc=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=CgeFnEn8MIb2emL7ge/Ab4CfuTuXbf8z22cUX3ZzUh1owuUYKOnkFEVYl9ICItcGd8HIVtKodwkeYy1y9de+0g8J9etLW99CiMMYrqRYuLui/dhw+wtjQ9ibBCaIcQQ+yWjA9gQN9hknPNXHmpkCprtuMtb6op6oTRjW9kHcvkc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=ZcjCEu+E; arc=none smtp.client-ip=192.198.163.12 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="ZcjCEu+E" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1719565564; x=1751101564; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=6KplxLnkxXhaTu+Rm36QZZfbkAxa8vrWYEkYUVuXQtc=; b=ZcjCEu+ESOGhaPtxgHsNK8xXN7CsOZvCKnH+ndpHxcdue7DsrZULujUR fXivV0tmEUsvGF7qrlf5eZUUpg/nPQe1BykdgJFiV3Ad1NfGpp3kZh+ml Lfmn9taV5Wc9I+MMfF69vssK01IswMlGZVaSrPZ5c+tLY5HolQZKPzoK/ 8BIODCy1udt1AeXOtEPqd55QxstuTkiPxewUKkO6mII2jDOdH7fL8gbi4 4apyCtNNmrpU/FExqur/qWs+FB/ueQ0L4W7LyR0IIquiSDTqpHJV/JWGw DcdzaawXkueA9O7sZMUpmNS+zYGb/wAs5h5IaxTEngaxXBeW7MqD74CRv w==; X-CSE-ConnectionGUID: n9JQWFMDRgOKkzfos+N05g== X-CSE-MsgGUID: /KN/+NmVRi2lL+CMo8Ep0A== X-IronPort-AV: E=McAfee;i="6700,10204,11116"; a="20613696" X-IronPort-AV: E=Sophos;i="6.09,168,1716274800"; d="scan'208";a="20613696" Received: from fmviesa006.fm.intel.com ([10.60.135.146]) by fmvoesa106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Jun 2024 02:06:03 -0700 X-CSE-ConnectionGUID: 2SFGxyO9QzOb7ycCZKlw+g== X-CSE-MsgGUID: jQSNVI7BSGCMBFLkPC22zA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.09,168,1716274800"; d="scan'208";a="44517067" Received: from 984fee00a4c6.jf.intel.com ([10.165.58.231]) by fmviesa006.fm.intel.com with ESMTP; 28 Jun 2024 02:06:03 -0700 From: Yi Liu To: joro@8bytes.org, jgg@nvidia.com, kevin.tian@intel.com, baolu.lu@linux.intel.com Cc: alex.williamson@redhat.com, robin.murphy@arm.com, eric.auger@redhat.com, nicolinc@nvidia.com, kvm@vger.kernel.org, chao.p.peng@linux.intel.com, yi.l.liu@intel.com, iommu@lists.linux.dev, zhenzhong.duan@intel.com, linux-kselftest@vger.kernel.org Subject: [PATCH v3 5/7] iommufd/selftest: Add a helper to get test device Date: Fri, 28 Jun 2024 02:05:55 -0700 Message-Id: <20240628090557.50898-6-yi.l.liu@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240628090557.50898-1-yi.l.liu@intel.com> References: <20240628090557.50898-1-yi.l.liu@intel.com> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 There is need to get the selftest device (sobj->type == TYPE_IDEV) in multiple places, so have a helper to for it. Signed-off-by: Yi Liu --- drivers/iommu/iommufd/selftest.c | 32 +++++++++++++++++++++----------- 1 file changed, 21 insertions(+), 11 deletions(-) diff --git a/drivers/iommu/iommufd/selftest.c b/drivers/iommu/iommufd/selftest.c index 1404eca156a8..782e3c469530 100644 --- a/drivers/iommu/iommufd/selftest.c +++ b/drivers/iommu/iommufd/selftest.c @@ -802,29 +802,39 @@ static int iommufd_test_mock_domain(struct iommufd_ucmd *ucmd, return rc; } -/* Replace the mock domain with a manually allocated hw_pagetable */ -static int iommufd_test_mock_domain_replace(struct iommufd_ucmd *ucmd, - unsigned int device_id, u32 pt_id, - struct iommu_test_cmd *cmd) +static struct selftest_obj * +iommufd_test_get_self_test_device(struct iommufd_ctx *ictx, u32 id) { struct iommufd_object *dev_obj; struct selftest_obj *sobj; - int rc; /* * Prefer to use the OBJ_SELFTEST because the destroy_rwsem will ensure * it doesn't race with detach, which is not allowed. */ - dev_obj = - iommufd_get_object(ucmd->ictx, device_id, IOMMUFD_OBJ_SELFTEST); + dev_obj = iommufd_get_object(ictx, id, IOMMUFD_OBJ_SELFTEST); if (IS_ERR(dev_obj)) - return PTR_ERR(dev_obj); + return ERR_CAST(dev_obj); sobj = container_of(dev_obj, struct selftest_obj, obj); if (sobj->type != TYPE_IDEV) { - rc = -EINVAL; - goto out_dev_obj; + iommufd_put_object(ictx, dev_obj); + return ERR_PTR(-EINVAL); } + return sobj; +} + +/* Replace the mock domain with a manually allocated hw_pagetable */ +static int iommufd_test_mock_domain_replace(struct iommufd_ucmd *ucmd, + unsigned int device_id, u32 pt_id, + struct iommu_test_cmd *cmd) +{ + struct selftest_obj *sobj; + int rc; + + sobj = iommufd_test_get_self_test_device(ucmd->ictx, device_id); + if (IS_ERR(sobj)) + return PTR_ERR(sobj); rc = iommufd_device_replace(sobj->idev.idev, &pt_id); if (rc) @@ -834,7 +844,7 @@ static int iommufd_test_mock_domain_replace(struct iommufd_ucmd *ucmd, rc = iommufd_ucmd_respond(ucmd, sizeof(*cmd)); out_dev_obj: - iommufd_put_object(ucmd->ictx, dev_obj); + iommufd_put_object(ucmd->ictx, &sobj->obj); return rc; }