Sunday, July 7, 2013

CPU state transfer in QEMU live migration

The CPU migration state in QEMU is in target-i386/machine.c. This file defines all the CPU states needed to transfer to the target VM in struct const VMStateDescription vmstate_x86_cpu. This struct consists of many version control messages. Messages can be set in VMStateSubsection to ignore version problems.

Read the relevant codes for more details.

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