[dpdk-dev] Having troubles binding an SR-IOV VF to uio_pci_generic on Amazon instance

Avi Kivity avi at scylladb.com
Thu Oct 1 11:54:11 CEST 2015



On 10/01/2015 12:48 PM, Vincent JARDIN wrote:
> On 01/10/2015 11:43, Avi Kivity wrote:
>>
>> That is because the device itself contains an iommu.
>
> Yes.
>
> It could be an option:
>   - we could flag the Linux system unsafe when the device does not 
> have any IOMMU
>   - we flag the Linux system safe when the device has an IOMMU

This already exists, it's called the tainted flag.

I don't know if pci_uio_generic already taints the kernel; it certainly 
should with DMA capable devices.



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