Comment 18 for bug 1903612

I can confirm this issue exists.

Config difference on the Bionic tree:

[hwe-5.4]$ grep CONFIG_VFIO_PCI ubuntu-bionic/debian.hwe-5.4/config/config.common.ubuntu
CONFIG_VFIO_PCI_IGD=y
CONFIG_VFIO_PCI_INTX=y
CONFIG_VFIO_PCI_MMAP=y
CONFIG_VFIO_PCI_NVLINK2=y
CONFIG_VFIO_PCI_VGA=y
[hwe-5.4]$ grep CONFIG_VFIO_PCI ubuntu-bionic/debian.hwe-5.4/config/annotations
CONFIG_VFIO_PCI policy<{'amd64': 'y', 'arm64': 'm', 'armhf': 'm', 'i386': 'm', 'ppc64el': 'y', 's390x': 'm'}>
CONFIG_VFIO_PCI_VGA policy<{'amd64': 'y', 'i386': 'y'}>
CONFIG_VFIO_PCI_IGD policy<{'amd64': 'y', 'i386': 'y'}>
CONFIG_VFIO_PCI mark<ENFORCED>note<LP#1636733>

[master-next]$ grep CONFIG_VFIO_PCI ubuntu-bionic/debian.master/config/config.common.ubuntu
CONFIG_VFIO_PCI_IGD=y
CONFIG_VFIO_PCI_INTX=y
CONFIG_VFIO_PCI_MMAP=y
CONFIG_VFIO_PCI_VGA=y
[master-next]$ grep CONFIG_VFIO_PCI ubuntu-bionic/debian.master/config/annotations
CONFIG_VFIO_PCI policy<{'amd64': 'm', 'arm64': 'm', 'armhf': 'm', 'i386': 'm', 'ppc64el': 'y', 's390x': 'm'}>
CONFIG_VFIO_PCI_VGA policy<{'amd64': 'y', 'i386': 'y'}>
CONFIG_VFIO_PCI mark<ENFORCED>note<LP#1636733>

https://github.com/torvalds/linux/blob/master/drivers/vfio/pci/Kconfig

This will need to be invesitgated.