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hw/pxb-pcie: fix PCI Express hotplug support

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Add the missing osc method for pxb-pcie devices as APCI spec recommends,
see 6.2.9.1 OSC Implementation Example for PCI Host Bridge Devices, ACPI 3.0a:

    It is recommended that a machine with multiple host bridge devices
    should report the same capabilities for all host bridges, and also
    negotiate control of the features described in the Control Field in
    the same way for all host bridges.

Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Marcel Apfelbaum <marcel@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Marcel Apfelbaum authored and Michael S. Tsirkin committed 2017-03-02 07:31:26 +02:00
1 parent 5cb206b58d
commit 077dd74239
2 files changed
+4 -1
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dtc
+1 -1
Submodule dtc updated: ec02b34c05...65cc4d2748.
hw/i386/acpi-build.c
+3
View File
@@ -1962,6 +1962,9 @@ build_dsdt(GArray *table_data, BIOSLinker *linker,
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, build_q35_osc_method());
}
if (numa_node != NUMA_NODE_UNASSIGNED) {
aml_append(dev, aml_name_decl("_PXM", aml_int(numa_node)));