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From: Paolo Bonzini <pbonzini@redhat.com>
To: Bharat Kumar Gogada <bharat.kumar.gogada@xilinx.com>
Cc: kvm@vger.kernel.org, guangrong xiao <guangrong.xiao@linux.intel.com>
Subject: Re: SR-PCIM support in KVM
Date: Sat, 29 Oct 2016 09:42:12 -0400 (EDT)	[thread overview]
Message-ID: <1363689657.9326766.1477748532922.JavaMail.zimbra@redhat.com> (raw)
In-Reply-To: <8520D5D51A55D047800579B0941471982598F0B4@XAP-PVEXMBX01.xlnx.xilinx.com>


> 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

  reply	other threads:[~2016-10-29 13:42 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-10-28 12:03 SR-PCIM support in KVM Bharat Kumar Gogada
2016-10-29 13:42 ` Paolo Bonzini [this message]
2016-10-31  6:17   ` Bharat Kumar Gogada
2016-10-31  8:09     ` Paolo Bonzini
2016-11-02  5:33       ` Bharat Kumar Gogada

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