Discussion of the implementations of VIRTIO specification
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From: Cornelia Huck <cohuck@redhat.com>
To: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Jean-Philippe Brucker <jean-philippe@linaro.org>,
	virtio-dev@lists.oasis-open.org, eric.auger@redhat.com,
	sebastien.boeuf@intel.com, kevin.tian@intel.com
Subject: [virtio-dev] Re: [PATCH] virtio-iommu: Rework the bypass feature
Date: Wed, 06 Oct 2021 08:45:12 +0200	[thread overview]
Message-ID: <877deq1wjr.fsf@redhat.com> (raw)
In-Reply-To: <20211005174532-mutt-send-email-mst@kernel.org>

On Tue, Oct 05 2021, "Michael S. Tsirkin" <mst@redhat.com> wrote:

> On Tue, Oct 05, 2021 at 06:57:50PM +0200, Cornelia Huck wrote:
>> On Thu, Sep 30 2021, Jean-Philippe Brucker <jean-philippe@linaro.org> wrote:
>> >  \item[VIRTIO_IOMMU_F_BYPASS (3)]
>> > -  When not attached to a domain, endpoints downstream of the IOMMU
>> > -  can access the guest-physical address space.
>> > +  This feature is deprecated.
>> 
>> "and must not be negotiated." ?
>> 
>> Not sure if we should add normative statements for that.
>
> We can't just make existing art de jure illegal.
>
> So SHOULD NOT and yes needs confirmance statements.
> Given documentation is already there why remove it?

Right, let's make that SHOULD NOT.


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  reply	other threads:[~2021-10-06  6:45 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-30 16:35 [PATCH] virtio-iommu: Rework the bypass feature Jean-Philippe Brucker
2021-10-05 16:57 ` [virtio-dev] " Cornelia Huck
2021-10-05 21:49   ` Michael S. Tsirkin
2021-10-06  6:45     ` Cornelia Huck [this message]
2021-10-06 12:53 ` [virtio-dev] " Eric Auger
2021-10-07 17:46   ` Jean-Philippe Brucker
2021-10-31 15:50     ` Eric Auger

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