[PATCH v7 4/4] vfio: convey kvm that the vfio-pci device is wc safe

[Ankit Agrawal]

>>   IP requires platform integration to take responsibility to prevent
>>   this.
>>
>>   To safely use VFIO in KVM the platform must guarantee full safety
>>   in the guest where no action taken against a MMIO mapping can
>>   trigger an uncontainer failure. We belive that most VFIO PCI
>>   platforms support this for both mapping types, at least in common
>>   flows, based on some expectations of how PCI IP is integrated. This
>>   can be enabled more broadly, for instance into vfio-platform
>>   drivers, but only after the platform vendor completes auditing for
>>   safety.
>
> I like it, please incorporate into the next version.

Yes, will fix the typos and add it.