On 21/02/18 22:59, Jordan Crouse wrote:
[...]> +static int install_pasid_cb(int pasid, u64 ttbr, u32 asid, void *data)
> +{
> + struct pasid_entry *entry = kzalloc(sizeof(*entry), GFP_KERNEL);
> +
> + if (!entry)
> + return -ENOMEM;
> +
> + entry->pasid = pasid;
> + entry->ttbr = ttbr;
> + entry->asid = asid;
> +
> + /* FIXME: Assume that we'll never have a pasid conflict? */
I think a conflict would be a bug on the IOMMU side. Users should not have
to check this. Then again, I have a few WARNs on the SMMUv3 context table
code that uncovered nasty bugs during development.
Thanks,
Jean
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