Re: 1-1 mapping of devices without VT-d

[Dor Laor <dlaor@redhat.com>]

Michael Tokarev wrote:
> Dor Laor wrote:
> []
>   
>> Although it had worked for us out of tree, there is no immediate need to
>> pursue it.
>> If anyone would like to nurture these patches he is more than welcome.
>> ps: you also have pv-dma option for Linux guests (same status though).
>> As time goes by most host will have either vt-d or amd iommu.
>>     
>
> Hmm.  Well, as time goes by, most hosts will be 64 bit or more.
> But it does not mean that there's no need to maintain 32bits
> arch anymore...  i hope anyway :)
>
>   
But of course
> Are you saying that PCI passthrough without hardware support will
> not be available in (standard) kvm, even if patches exists for that?
>
>   
No, just might take a some time to go to mainline. Patches need further 
polishing and we
also need wider demand for it.
Actually pvdma can help vt-d so we won't have to make all the guest 
memory unswappable.
> /mjt
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