pc_piix: enable legacy hotplug for Xen
xenfv has no fwcfg and so does not load acpi from QEMU. as such new acpi features don't work. Reported-by: Sander Eikelenboom <linux@eikelenboom.it> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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@ -793,6 +793,17 @@ static QEMUMachine xenfv_machine = {
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.max_cpus = HVM_MAX_VCPUS,
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.default_machine_opts = "accel=xen",
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.hot_add_cpu = pc_hot_add_cpu,
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.compat_props = (GlobalProperty[]) {
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/* xenfv has no fwcfg and so does not load acpi from QEMU.
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* as such new acpi features don't work.
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*/
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{
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.driver = "PIIX4_PM",
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.property = "acpi-pci-hotplug-with-bridge-support",
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.value = "off",
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},
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{ /* end of list */ }
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},
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};
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#endif
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