tree ab0c6d1d07abd74e90db41521258615fc1eaa211
parent 2dd1194833de133960f286903ce704cb10fa7eb0
author Alex Williamson <alex.williamson@redhat.com> 1361207473 -0700
committer Alex Williamson <alex.williamson@redhat.com> 1361207473 -0700

vfio-pci: Add support for VGA region access

PCI defines display class VGA regions at I/O port address 0x3b0, 0x3c0
and MMIO address 0xa0000.  As these are non-overlapping, we can ignore
the I/O port vs MMIO difference and expose them both in a single
region.  We make use of the VGA arbiter around each access to
configure chipset access as necessary.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>