Re: [vfio-users] High GPU PCI-e bus usage resulting in USB audio cutting out

2018-02-22 Thread taii...@gmx.com
On 02/16/2018 11:29 AM, John Koelndorfer wrote: There was a patchset released for qemu that greatly improves the emulated audio device sound quality. It helps with the frequent popping you'd hear with vanilla qemu. See this thread on reddit:

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

2018-02-22 Thread Alex Williamson
On Thu, 22 Feb 2018 23:12:58 +0100 Oliver Heid 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

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

2018-02-22 Thread Oliver Heid
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). Thanks! *From:* Alex Williamson *Sent:* Thursday,