linux-kernel - Re: [RFC] /dev/ioasid uAPI proposal

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Message-ID: <20210608132039.GG1002214@nvidia.com>
Date:   Tue, 8 Jun 2021 10:20:39 -0300
From:   Jason Gunthorpe <jgg@...dia.com>
To:     Jason Wang <jasowang@...hat.com>
Cc:     "Tian, Kevin" <kevin.tian@...el.com>,
        Lu Baolu <baolu.lu@...ux.intel.com>,
        Liu Yi L <yi.l.liu@...ux.intel.com>,
        "kvm@...r.kernel.org" <kvm@...r.kernel.org>,
        Jonathan Corbet <corbet@....net>,
        "iommu@...ts.linux-foundation.org" <iommu@...ts.linux-foundation.org>,
        LKML <linux-kernel@...r.kernel.org>,
        "Alex Williamson (alex.williamson@...hat.com)\"\"" 
        <alex.williamson@...hat.com>, David Woodhouse <dwmw2@...radead.org>
Subject: Re: [RFC] /dev/ioasid uAPI proposal

On Tue, Jun 08, 2021 at 09:10:42AM +0800, Jason Wang wrote:

> Well, this sounds like a re-invention of io_uring which has already worked
> for multifds.

How so? io_uring is about sending work to the kernel, not getting
structued events back?

It is more like one of the perf rings

Jason