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Livemigration#39

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Commits on Nov 15, 2013

• VCPU: Added a RESUME event to get the CPU out of its lock.

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• Page Tracking: Added a host op for this.

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• VCPU TSC offset manipulation.

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• Added a restore bus to the mainboard.

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• Added restore code to TimeoutList.

  

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• Added restore code to LAPIC model.

  

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• Added restore code to PIC model.

  

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• Added restore code to PIT model.

  

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• Added restore code to VGA model.

  

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• Added a host op stub for the application's configuration string retrieval.

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• Added class StopWatch to time.h.

  

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• Added class IpHelper containing a skeleton of the socket abstraction which was in use in the Vancouver project on NUL to do host app networking.

  

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• Added the main live migration code.

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• This commit implements most of the code needed to actually use the new live migration code.

  

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• This commit introduces an example start event, triggered by a keyboard backspace key press.

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• Add an ACPI controller model.

  

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• Added a new message type: MessageAcpiEvent.

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• Made PCI passthrough devices migratable by adding hot plug event handling code.

  

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• Made the NIC model migratable.

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• Move guest physical memory information retrieval into the listen/send methods.

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• Added a new field "actual_physmem" to MessageMemRegion messages.

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• Rewrote the MessageHostOp OP_NEXT_DIRTY_REGION

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• Rewrote the checksumming routine.

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• Made checksumming optional with a preprocessor #define.

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• Fix live migration for larger and memory-aggressive VMs

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