Boys, On Wednesday 11 November 2009, Boyd Fletcher wrote: > Do y'all have an good technical explaining how teleportion works > internally? You it be possible to get access to the instruction stream?
teleportation is related to saving the machine state. Remember, when you shut down a VM, you will be asked if you want to power off the VM, if you want to send the ACPI shutdown event or if you want to save the VM state and then terminate the VM. If you choose the latter, the next time you start the VM it will continue at the exact same place where it was suspended, even at the exact same instruction. A saved state of a VM contains the internal state of every component of the VMM, that is the virtual CPU state, the state of the virtual MMU and the state of all virtual devices. For teleportation you only need to transfer this state from one host (the origin) to another host (the target). On the target one has to start a VM with a dummy state. A VBoxManage command takes care of this. The state of this VM will be replaced by the state of the VM at the origin. Of course, all attached disk images and CDROM images must be shared between the two hosts, for instance by putting them on an NFS file system. Kind regards, Frank -- Dr.-Ing. Frank Mehnert Sitz der Gesellschaft: Sun Microsystems GmbH, Sonnenallee 1, 85551 Kirchheim-Heimstetten Amtsgericht München: HRB 161028 Geschäftsführer: Thomas Schröder, Wolfgang Engels, Wolf Frenkel Vorsitzender des Aufsichtsrates: Martin Häring
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