i386/acpi: show PCI Express bus on pxb-pcie expanders

Show PCIe host bridge PNP id with PCI host bridge as a compatible id
when expanding a pcie bus.

Cc: [email protected]
Signed-off-by: Evgeny Yakovlev <[email protected]>
Message-Id: <1563526469[email protected]>
Reviewed-by: Michael S. Tsirkin <[email protected]>
Signed-off-by: Michael S. Tsirkin <[email protected]>

diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index e7b756b51b71b69c84db3e4cc802a905e8d62f39..f3fdfefcd55672925700c13c4906674b40908001 100644 (file)
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -1914,10 +1914,13 @@ build_dsdt(GArray *table_data, BIOSLinker *linker,
             scope = aml_scope("\\_SB");
             dev = aml_device("PC%.02X", bus_num);
             aml_append(dev, aml_name_decl("_UID", aml_int(bus_num)));
-            aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0A03")));
             aml_append(dev, aml_name_decl("_BBN", aml_int(bus_num)));
             if (pci_bus_is_express(bus)) {
+                aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0A08")));
+                aml_append(dev, aml_name_decl("_CID", aml_eisaid("PNP0A03")));
                 aml_append(dev, build_q35_osc_method());
+            } else {
+                aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0A03")));
             }
 
             if (numa_node != NUMA_NODE_UNASSIGNED) {