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authorMarcel Apfelbaum <marcel@redhat.com>2017-02-28 16:13:29 +0200
committerMichael S. Tsirkin <mst@redhat.com>2017-03-02 07:31:26 +0200
commit077dd74239a99f6c1e77c5c1aa24cfc7f58cd20c (patch)
tree69042b4ec16ef56b7b659ef1ce5a3c8b25ffe22c /hw
parent5cb206b58d1ad6bd2ca1b2276af0b262c617e5fb (diff)
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hw/pxb-pcie: fix PCI Express hotplug support
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>
Diffstat (limited to 'hw')
-rw-r--r--hw/i386/acpi-build.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index efbbfcb..8018f05 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -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)));