Hi,
> +static irqreturn_t iommu_fault_handler(int irq, void *data)
> +{
> + u32 stat, da;
> + u32 *iopgd, *iopte;
> + int err = -EIO;
> + struct iommu *obj = data;
> +
> + if (!obj->refcount)
> + return IRQ_NONE;
> +
> + /* Dynamic loading TLB or PTE */
> + if (obj->isr)
> + err = obj->isr(obj);
> ^^^^^^^^^^^^^^
>
> If the above "isr" function sets a new "tlb" or "pte" entry, then
> further iommu fault won't happen anymore.
>
-- I think adding the new tlb entry or any other error recovery mechanism should be deferred to the registered callback function.
Thank you,
Best regards,
Hari
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