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Re: [RFC] virtio-iommu: Take into account possible aliasing in virtio_io
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From: |
Jean-Philippe Brucker |
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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 16:23:04 +0000 |
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
Thanks,
Jean