RE: question about handling MSI-X by VFIO

2020-01-23 Thread Thanos Makatos
> > I'm passing through a virtual PCI device to a QEMU guest via VFIO/mdev > and I > > notice that MSI-X interrupts are disabled in the device (MSIXCAP.MXC.MXE > is > > zero) and the BARs containing the table and PBA (4 and 5 in my case) are > never > > accessed. However, whenever I fire an MSI-X

Re: question about handling MSI-X by VFIO

2020-01-21 Thread Alex Williamson
On Tue, 21 Jan 2020 13:36:26 + Thanos Makatos wrote: > I'm passing through a virtual PCI device to a QEMU guest via VFIO/mdev and I > notice that MSI-X interrupts are disabled in the device (MSIXCAP.MXC.MXE is > zero) and the BARs containing the table and PBA (4 and 5 in my case) are never >