[Qemu-devel] [v8][RESEND][PATCH 09/10] xen, gfx passthrough: register host bridge specific to passthrough

[Tiejun Chen]

Just register that pci host bridge specific to passthrough.

Signed-off-by: Tiejun Chen <tiejun.c...@intel.com>
---
 hw/i386/pc_piix.c | 27 +++++++++++++++++++++++++--
 1 file changed, 25 insertions(+), 2 deletions(-)

diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c
index 6054b5a..938b1be 100644
--- a/hw/i386/pc_piix.c
+++ b/hw/i386/pc_piix.c
@@ -50,7 +50,8 @@
 #include "cpu.h"
 #include "qemu/error-report.h"
 #ifdef CONFIG_XEN
-#  include <xen/hvm/hvm_info_table.h>
+#include <xen/hvm/hvm_info_table.h>
+#include "hw/xen/xen_pt.h"
 #endif
 
 #define MAX_IDE_BUS 2
@@ -442,11 +443,33 @@ static void pc_init_isa(MachineState *machine)
 }
 
 #ifdef CONFIG_XEN
+static void igd_passthrough_pc_init_pci(MachineState *machine)
+{
+    pc_init1(machine,
+             TYPE_I440FX_PCI_HOST_BRIDGE,
+             TYPE_IGD_PASSTHROUGH_I440FX_PCI_DEVICE);
+}
+
+static void pc_init_pci(MachineState *machine)
+{
+    pc_init1(machine,
+             TYPE_I440FX_PCI_HOST_BRIDGE,
+             TYPE_I440FX_PCI_DEVICE);
+}
+
+static void pc_xen_hvm_init_pci(MachineState *machine)
+{
+    if (has_igd_gfx_passthru)
+        igd_passthrough_pc_init_pci(machine);
+    else
+        pc_init_pci(machine);
+}
+
 static void pc_xen_hvm_init(MachineState *machine)
 {
     PCIBus *bus;
 
-    pc_init1(machine, TYPE_I440FX_PCI_HOST_BRIDGE, TYPE_I440FX_PCI_DEVICE);
+    pc_xen_hvm_init_pci(machine);
 
     bus = pci_find_primary_bus();
     if (bus != NULL) {
-- 
1.9.1