[vfio-users] VFIO for PCIe streaming from/to user space

[Alex Williamson]

On Thu, 22 Feb 2018 23:12:58 +0100
Oliver Heid <Oliver.Heid at h-next.de> wrote:

> Problem solved: To enable MSI -> eventfd signalling we had to set the 
> bus master enable bit in PCI config space (bit 2 at offset 4).

Yes, an MSI is simply a DMA write from the device, without BM the
device cannot do any DMA.  Thanks,

Alex