Re: Questions about IOMMU & PCIe switch

From: Clemens Ladisch
Date: Thu Jan 08 2015 - 03:34:27 EST


Raimonds Cicans wrote:
> https://github.com/ljalves/linux_media/issues/66

If the TBS driver works, why don't you use it?

The WARNING from the kernel log indicates a hardware bug in the PCIe
bridge. Do you have the same card, and do you also get this warning
with kernel 3.16?

I/O virtualization requires handling packets from different devices
differently. Problems with DMAR might indicate that some PCIe device
does not correctly identify itself as the source of PCIe packets.


Regards,
Clemens
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