Re: SR-PCIM support in KVM

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> Hi All,
> 
> Is there any support for software mailbox communication between PF and VF
> driver in kvm ?
> 
> As per the following link:
> https://www.linux-kvm.org/images/6/6a/KvmForum2008$kdf2008_7.pdf
> 
> It says that for software based virtual mailbox we require SR-PCIM support.
> 
> So for this purpose is SR-PCIM implemented as part of KVM ?
> Or is there any other method that KVM provides for communication between PF &
> VF ?

Hi, SR-IOV is not part of KVM (the virtual machine monitor kernel module).
In PCIe terms, when using KVM the "VI" or Virtualization Intermediary is the
Linux VFIO driver.  SR-IOV management is split between the PF driver and VFIO.

Paolo
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