Il 07/04/2014 11:19, Michael S. Tsirkin ha scritto:
This means we can't cleanly implement an option for guest to disable ACPI and switch to native if supported, like the ACPI spec allows.If we change hotplug code to walk the tree top down and invoke all callbacks, then it will be fixed in a cleaner way: bridges would just do: if (dev->bus != self) { set_error return; } and suddently pci host can trap callbacks and redirect to acpi if it wants to.
I think this should be handled by making the q35 PCI host bridge implement HotplugHandler itself, possibly overriding the parent's implementation.
Paolo
