mirror of https://github.com/cirruslabs/tart.git
3678f45d82
Add a per-VM "memoryBalloon" setting (disabled by default) that, when enabled via "tart set <name> --memory-balloon true", attaches a VZVirtioTraditionalMemoryBalloonDeviceConfiguration to the VM, allowing supported guest operating systems to participate in best-effort memory reclaim. A balloon target can be requested at run time via "tart run --balloon-target-memory <MB>". The target is re-applied periodically, since a target set before the guest's virtio-balloon driver probes the device is lost when the guest resets the device while booting (the same applies to guest reboots). The balloon device is skipped for suspendable VMs (similarly to the entropy device) to not interfere with the save/restore support. VM.craftConfiguration() is split into a buildConfiguration() part and a validation part, so that the device wiring can be unit-tested without the "com.apple.security.virtualization" entitlement. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> |
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