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

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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>
This commit is contained in:
Marcel Apfelbaum 2017-01-25 10:44:46 +02:00 committed by Michael S. Tsirkin
parent e0b283e7c5
commit dc0ae76770
2 changed files with 5 additions and 1 deletions
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2
hw/pci-bridge/pci_bridge_dev.c
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@ -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(),
};

4
include/hw/compat.h
View file

@ -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 \