pci: add pci_address_space()

Returns the PCI address space.  Useful for bridges that can obscure
part of the PCI address space.

Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/hw/pci.c b/hw/pci.c
index 4dc13d2561..6124790f01 100644
--- a/hw/pci.c
+++ b/hw/pci.c
@@ -2165,3 +2165,8 @@ int pci_qdev_find_device(const char *id, PCIDevice **pdev)
 
     return rc;
 }
+
+MemoryRegion *pci_address_space(PCIDevice *dev)
+{
+    return dev->bus->address_space_mem;
+}