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[Qemu-devel] [PATCH V4 2/2] hw/pxb-pcie: fix PCI Express hotplug support
From: |
Marcel Apfelbaum |
Subject: |
[Qemu-devel] [PATCH V4 2/2] hw/pxb-pcie: fix PCI Express hotplug support |
Date: |
Tue, 28 Feb 2017 16:13:29 +0200 |
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 <address@hidden>
Signed-off-by: Marcel Apfelbaum <address@hidden>
---
dtc | 2 +-
hw/i386/acpi-build.c | 3 +++
2 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/dtc b/dtc
index ec02b34..65cc4d2 160000
--- a/dtc
+++ b/dtc
@@ -1 +1 @@
-Subproject commit ec02b34c05be04f249ffaaca4b666f5246877dea
+Subproject commit 65cc4d2748a2c2e6f27f1cf39e07a5dbabd80ebf
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index 1da6d9f..04029f6 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -1961,6 +1961,9 @@ 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)));
--
2.5.5