Re: inter VM / PF-VF communication

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> I'm not aware of any vendor these days that actually requires a PV driver
> for PF-VF communications.  I know some toyed with the idea years ago but I
> thought malboxes have become defacto standard.
May be because Intel started the mailbox implementation ;). But just
wondering from hypervisor point of view, shouldn't their be any way to
communicate between PF and VF? It may also lead to unraveling loop
holes in security issues that a rogue VF driver can do.

Do you also say that Linux would depend upon HW for this? Although I
see couple of papers for PF-VF communication in KVM through mmio and
virtual pci devices to guest..
> Is there a specific card you think needs a pv mailbox?
>
> Regards,
>
> Anthony Liguori
>
>>
>> Thanks
>> Sagar
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