pci: make pci_bar useable outside pci.c

We need to work with PCI BARs to generate OF properties
during PCI hotplug for sPAPR guests.

Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>

hw/pci/pci.c

diff --git a/hw/pci/pci.c b/hw/pci/pci.c
index 48f19a3..3423c3a 100644
--- a/hw/pci/pci.c
+++ b/hw/pci/pci.c
@@ -123,7 +123,7 @@
 
 static QLIST_HEAD(, PCIHostState) pci_host_bridges;
 
-static int pci_bar(PCIDevice *d, int reg)
+int pci_bar(PCIDevice *d, int reg)
 {
     uint8_t type;
 

include/hw/pci/pci.h

diff --git a/include/hw/pci/pci.h b/include/hw/pci/pci.h
index 5d050c8..6c2af0d 100644
--- a/include/hw/pci/pci.h
+++ b/include/hw/pci/pci.h
@@ -334,6 +334,12 @@
 MemoryRegion *pci_address_space(PCIDevice *dev);
 MemoryRegion *pci_address_space_io(PCIDevice *dev);
 
+/*
+ * Should not normally be used by devices. For use by sPAPR target
+ * where QEMU emulates firmware.
+ */
+int pci_bar(PCIDevice *d, int reg);
+
 typedef void (*pci_set_irq_fn)(void *opaque, int irq_num, int level);
 typedef int (*pci_map_irq_fn)(PCIDevice *pci_dev, int irq_num);
 typedef PCIINTxRoute (*pci_route_irq_fn)(void *opaque, int pin);