linux-kernel - RE: [PATCH v1 07/16] iommufd/viommu: Add driver-allocated vDEVICE support

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Message-ID: <BN9PR11MB527601845E1E55D02F57F04E8CB82@BN9PR11MB5276.namprd11.prod.outlook.com>
Date: Mon, 21 Apr 2025 08:00:37 +0000
From: "Tian, Kevin" <kevin.tian@...el.com>
To: Nicolin Chen <nicolinc@...dia.com>, "jgg@...dia.com" <jgg@...dia.com>,
	"corbet@....net" <corbet@....net>, "will@...nel.org" <will@...nel.org>
CC: "robin.murphy@....com" <robin.murphy@....com>, "joro@...tes.org"
	<joro@...tes.org>, "thierry.reding@...il.com" <thierry.reding@...il.com>,
	"vdumpa@...dia.com" <vdumpa@...dia.com>, "jonathanh@...dia.com"
	<jonathanh@...dia.com>, "shuah@...nel.org" <shuah@...nel.org>,
	"praan@...gle.com" <praan@...gle.com>, "nathan@...nel.org"
	<nathan@...nel.org>, "peterz@...radead.org" <peterz@...radead.org>, "Liu, Yi
 L" <yi.l.liu@...el.com>, "jsnitsel@...hat.com" <jsnitsel@...hat.com>,
	"mshavit@...gle.com" <mshavit@...gle.com>, "zhangzekun11@...wei.com"
	<zhangzekun11@...wei.com>, "iommu@...ts.linux.dev" <iommu@...ts.linux.dev>,
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	<linux-tegra@...r.kernel.org>, "linux-kselftest@...r.kernel.org"
	<linux-kselftest@...r.kernel.org>, "patches@...ts.linux.dev"
	<patches@...ts.linux.dev>
Subject: RE: [PATCH v1 07/16] iommufd/viommu: Add driver-allocated vDEVICE
 support

> From: Nicolin Chen <nicolinc@...dia.com>
> Sent: Friday, April 11, 2025 2:38 PM
> 
> @@ -128,6 +142,9 @@ struct iommufd_viommu_ops {
>  		const struct iommu_user_data *user_data);
>  	int (*cache_invalidate)(struct iommufd_viommu *viommu,
>  				struct iommu_user_data_array *array);
> +	struct iommufd_vdevice *(*vdevice_alloc)(struct iommufd_viommu
> *viommu,
> +						 struct device *dev, u64 id);

s/id/virt_id/ would be clearer.