From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Zhang Haoyu" <zhanghy@sangfor.com>
Subject: [questions] about using vfio to assign sr-iov vf to vm
Date: Thu, 14 Aug 2014 16:22:26 +0800
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Hi, all
I'm using VFIO to assign intel 82599 VF to VM, now I encounter a problem,
82599 PF and its VFs belong to the same iommu_group, but I only want to assign some VFs to one VM, and some other VFs to another VM, ...,
so how to only unbind (part of) the VFs but PF?
I read the kernel doc vfio.txt, I'm not sure should I unbind all of the devices which belong to one iommu_group?
If so, because PF and its VFs belong to the same iommu_group, if I unbind the PF, its VFs also diappeared.
I think I misunderstand someting,
any advises?

Thanks,
Zhang Haoyu