hw/xen/xen_pt: Resolve igd_passthrough_isa_bridge_create() indirection

Now that igd_passthrough_isa_bridge_create() is implemented within the
xen context it may use Xen* data types directly and become
xen_igd_passthrough_isa_bridge_create(). This resolves an indirection.

Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Acked-by: Anthony PERARD <anthony.perard@citrix.com>
Message-Id: <20220326165825.30794-3-shentey@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

hw/xen/xen_pt.c

@@ -701,17 +701,6 @@ static const MemoryListener xen_pt_io_listener = {
     .priority = 10,
 };
 
-static void
-xen_igd_passthrough_isa_bridge_create(XenPCIPassthroughState *s,
-                                      XenHostPCIDevice *dev)
-{
-    uint16_t gpu_dev_id;
-    PCIDevice *d = &s->dev;
-
-    gpu_dev_id = dev->device_id;
-    igd_passthrough_isa_bridge_create(pci_get_bus(d), gpu_dev_id);
-}
-
 /* destroy. */
 static void xen_pt_destroy(PCIDevice *d) {
 

hw/xen/xen_pt.h

@@ -43,7 +43,8 @@ OBJECT_DECLARE_SIMPLE_TYPE(XenPCIPassthroughState, XEN_PT_DEVICE)
 
 uint32_t igd_read_opregion(XenPCIPassthroughState *s);
 void igd_write_opregion(XenPCIPassthroughState *s, uint32_t val);
-void igd_passthrough_isa_bridge_create(PCIBus *bus, uint16_t gpu_dev_id);
+void xen_igd_passthrough_isa_bridge_create(XenPCIPassthroughState *s,
+                                           XenHostPCIDevice *dev);
 
 /* function type for config reg */
 typedef int (*xen_pt_conf_reg_init)

hw/xen/xen_pt_graphics.c

@@ -375,10 +375,13 @@ static void pt_graphics_register_types(void)
 }
 type_init(pt_graphics_register_types)
 
-void igd_passthrough_isa_bridge_create(PCIBus *bus, uint16_t gpu_dev_id)
+void xen_igd_passthrough_isa_bridge_create(XenPCIPassthroughState *s,
+                                           XenHostPCIDevice *dev)
 {
+    PCIBus *bus = pci_get_bus(&s->dev);
     struct PCIDevice *bridge_dev;
     int i, num;
+    const uint16_t gpu_dev_id = dev->device_id;
     uint16_t pch_dev_id = 0xffff;
     uint8_t pch_rev_id = 0;