virtio/pci: Use consistent naming for the PCI ISR bit flags

Avoid using VIRTIO_IRQ_{HIGH,LOW} which belong to a different
namespace.  Instead define VIRTIO_PCI_ISR_QUEUE as a logical extension
of the VIRTIO_PCI_ISR_* namespace. Since this bit flag is missing from
a header imported verbatim from Linux, define it directly in pci.c.

Signed-off-by: Keir Fraser <keirf@google.com>
2 files changed