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vmm: Only generate GED event when new DIMM added
Avoid the ACPI scan in the guest OS when no new DIMM is hotplugged. Signed-off-by: Rob Bradford <robert.bradford@intel.com>
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@ -451,12 +451,14 @@ impl MemoryManager {
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Ok(slot)
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}
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pub fn resize(&mut self, desired_ram: u64) -> Result<(), Error> {
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if desired_ram >= self.current_ram {
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pub fn resize(&mut self, desired_ram: u64) -> Result<bool, Error> {
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if desired_ram > self.current_ram {
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self.hotplug_ram_region((desired_ram - self.current_ram) as usize)?;
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self.current_ram = desired_ram;
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Ok(true)
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} else {
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Ok(false)
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}
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Ok(())
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}
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}
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@ -500,14 +500,17 @@ impl Vm {
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}
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if let Some(desired_memory) = desired_memory {
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self.memory_manager
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if self
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.memory_manager
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.lock()
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.unwrap()
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.resize(desired_memory)
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.map_err(Error::MemoryManager)?;
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self.devices
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.notify_hotplug(HotPlugNotificationFlags::MEMORY_DEVICES_CHANGED)
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.map_err(Error::DeviceManager)?;
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.map_err(Error::MemoryManager)?
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{
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self.devices
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.notify_hotplug(HotPlugNotificationFlags::MEMORY_DEVICES_CHANGED)
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.map_err(Error::DeviceManager)?;
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}
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self.config.lock().unwrap().memory.size = desired_memory;
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}
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Ok(())
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