Dynamic power management states for virtual machine migration

A system comprising:

• a memory;
• a processing device operatively coupled to the memory, the processing device to:
• generate a host power management data structure specifying a plurality of power management states of the host computer system;
• detect that a virtual machine (VM) has been migrated to the host computer system;
• prevent the VM from performing power management operations;
• cause the virtual machine to read the host power management data structure;
• and
• responsive to receiving a notification that the VM has read the host power management data structure, enable the VM to enter a first power management state of the plurality of power management states.

A non-transitory computer-readable media storing instructions that, when executed, cause a processing device to:

• generate a host power management data structure specifying a plurality of power management states of the host computer system;
• detect that a virtual machine (VM) has been migrated to the host computer system;
• prevent the VM from performing power management operations;
• cause the virtual machine to read the host power management data structure;
• and
• responsive to receiving a notification that the VM has read the host power management data structure, enable the VM to enter a first power management state of the plurality of power management states.