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Re: [RFC] virtio-iommu: Take into account possible aliasing in virtio_io
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From: |
Eric Auger |
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Subject: |
Re: [RFC] virtio-iommu: Take into account possible aliasing in virtio_iommu_mr() |
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Date: |
Fri, 20 Jan 2023 17:43:45 +0100 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.3.1 |
Hi Jean, Robin,
On 1/20/23 17:23, Jean-Philippe Brucker wrote:
> On Fri, Jan 20, 2023 at 03:50:18PM +0000, Robin Murphy wrote:
>> On 2023-01-20 15:28, Jean-Philippe Brucker wrote:
>>
>> For some reason this came through as blank mail with a text attachment,
> Ugh sorry about that, looks like I hit ^D in mutt before sending
>
>> so apologies for the lack of quoting, but for reference this is a
>> long-standing known issue:
>>
>> https://lore.kernel.org/linux-iommu/9625faf4-48ef-2dd3-d82f-931d9cf26976@huawei.com/
>>
>> In summary, yes, hanging {of,acpi}_iommu_configure() off driver probe is
>> massively wrong, and pulling that step into iommu_probe_device() in a sane
>> and robust manner is one of the next things to start on after getting the
>> bus ops out of the way.
> Right, thanks for confirming
Thank you very much for your support and confirmation of the probe issue!
Eric
>
> Thanks,
> Jean
>