[geeks] vmware, usb, and hubs

[Brian Dunbar]

>  your hardware needs to have an IOMMU aka "Intel VT-d.

Ah ... looking in the manual it's a BIOS option I need to enable.  Thanks!


On Fri, Aug 8, 2014 at 7:08 PM, Andrew Jones <andrew at jones.ec> wrote:

> On 08/08/2014 05:28 PM, Andrew Jones wrote:
>
>> On Aug 8, 2014, at 4:12 PM, Brian Dunbar <brian.dunbar at gmail.com> wrote:
>>>
>>> Hypervisor can 'see' all the devices.  One can be attached to the guest
>>> VM,
>>> no problem.  Two cannot: it's just not there.
>>>
>>> I thought DirectPath might be a solution - told vmware to put Two as a
>>> DirectPath device.   When I add that PCI device to the guest it halts at
>>> boot and tells me ..
>>>
>>> *Failed to register the device pciPassthru0 for 0:26.0 due to unavailable
>>> hardware or software support*
>>>
>>>
>> Does your software have an IOMMU?
>>
>
> This was typed on my phone, so it was both short and contained a serious
> typo.
>
> For PCI device passthrough and similar shennanigans to work, your hardware
> needs to have an IOMMU aka "Intel VT-d."  Most servers have IOMMUs.
>
> It's pretty uncommon in desktops and laptops.
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-- 
Brian Dunbar

"Display some adaptability"