linux-kernel - RE: [PATCH 2/2] iommu/ioasid: Remove custom IOASID allocator

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Message-ID: <BN9PR11MB527675C04037838BC703AA818CDD9@BN9PR11MB5276.namprd11.prod.outlook.com>
Date:   Mon, 13 Feb 2023 03:14:20 +0000
From:   "Tian, Kevin" <kevin.tian@...el.com>
To:     Jacob Pan <jacob.jun.pan@...ux.intel.com>,
        LKML <linux-kernel@...r.kernel.org>,
        "iommu@...ts.linux.dev" <iommu@...ts.linux.dev>,
        Lu Baolu <baolu.lu@...ux.intel.com>,
        Joerg Roedel <joro@...tes.org>,
        Jean-Philippe Brucker <jean-philippe@...aro.com>,
        "Robin Murphy" <robin.murphy@....com>
CC:     David Woodhouse <dwmw2@...radead.org>,
        "Raj, Ashok" <ashok.raj@...el.com>,
        "Liu, Yi L" <yi.l.liu@...el.com>, Jason Gunthorpe <jgg@...dia.com>
Subject: RE: [PATCH 2/2] iommu/ioasid: Remove custom IOASID allocator

> From: Jacob Pan <jacob.jun.pan@...ux.intel.com>
> Sent: Saturday, February 11, 2023 7:02 AM
> 
> Custom allocator feature was introduced to support VT-d's virtual
> command, an enlightened interface designed for VMs to allocate PASIDs
> from the host.
> 
> As we remove/withdraw the VT-d virtual command feature, the sole user
> of custom allocator, we can safely remove the custom allocator as well.
> Effectively, this will return IOASID core to the original simple global
> namespace allocator.
> 
> Signed-off-by: Jacob Pan <jacob.jun.pan@...ux.intel.com>

Reviewed-by: Kevin Tian <kevin.tian@...el.com>