[Qemu-devel] [PULL 08/28] pci: add pci_address_space_io()

[Avi Kivity <avi@redhat.com>]

From: Richard Henderson <rth@twiddle.net>

Returns the I/O address space.  Useful for implementing
PCI-ISA bridge devices.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Avi Kivity <avi@redhat.com>
---
 hw/pci.c |    5 +++++
 hw/pci.h |    1 +
 2 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/hw/pci.c b/hw/pci.c
index af74003..d23fa74 100644
--- a/hw/pci.c
+++ b/hw/pci.c
@@ -2196,3 +2196,8 @@ int pci_qdev_find_device(const char *id, PCIDevice **pdev)
 {
     return dev->bus->address_space_mem;
 }
+
+MemoryRegion *pci_address_space_io(PCIDevice *dev)
+{
+    return dev->bus->address_space_io;
+}
diff --git a/hw/pci.h b/hw/pci.h
index c04b169..bd0dd8b 100644
--- a/hw/pci.h
+++ b/hw/pci.h
@@ -221,6 +221,7 @@ void pci_default_write_config(PCIDevice *d,
 void pci_device_save(PCIDevice *s, QEMUFile *f);
 int pci_device_load(PCIDevice *s, QEMUFile *f);
 MemoryRegion *pci_address_space(PCIDevice *dev);
+MemoryRegion *pci_address_space_io(PCIDevice *dev);
 
 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);
-- 
1.7.6.1