hw/pci: disable pci-bridge's shpc by default

The shpc component is optional while  ACPI hotplug is used
for hot-plugging PCI devices into a PCI-PCI bridge.
Disabling the shpc by default will make slot 0 usable at boot time
and not only for hot-plug, without loosing any functionality.
Older machines will have shpc enabled for compatibility reasons.

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>

diff --git a/hw/pci-bridge/pci_bridge_dev.c b/hw/pci-bridge/pci_bridge_dev.c
index 5dbd933cc15befac688b7c75b192d2c4cc4ed7c1..647ad80155044588e0bdc45383b167f45f213ffc 100644 (file)
--- a/hw/pci-bridge/pci_bridge_dev.c
+++ b/hw/pci-bridge/pci_bridge_dev.c
@@ -163,7 +163,7 @@ static Property pci_bridge_dev_properties[] = {
     DEFINE_PROP_ON_OFF_AUTO(PCI_BRIDGE_DEV_PROP_MSI, PCIBridgeDev, msi,
                             ON_OFF_AUTO_AUTO),
     DEFINE_PROP_BIT(PCI_BRIDGE_DEV_PROP_SHPC, PCIBridgeDev, flags,
-                    PCI_BRIDGE_DEV_F_SHPC_REQ, true),
+                    PCI_BRIDGE_DEV_F_SHPC_REQ, false),
     DEFINE_PROP_END_OF_LIST(),
 };
 

diff --git a/include/hw/compat.h b/include/hw/compat.h
index ee0dd1b5df50383ee3ab898ef72262919cb80f56..b7db43803cf54f19aff3b37f66546059209b95f8 100644 (file)
--- a/include/hw/compat.h
+++ b/include/hw/compat.h
@@ -14,6 +14,10 @@
         .driver   = "pflash_cfi01",\
         .property = "old-multiple-chip-handling",\
         .value    = "on",\
+    },{\
+        .driver   = "pci-bridge",\
+        .property = "shpc",\
+        .value    = "on",\
     },
 
 #define HW_COMPAT_2_7 \