A method, system, and program product is provided for reducing redundant validations for live operating system migration. A control point caches at least one validation inventory that is associated with a logical partition (LPAR). The control point sends the cached validation inventory to a virtualization manager upon an activation of the LPAR associated with the validation inventory. The control point invalidates the cached validation inventory upon notification from the virtualization manager that the validation inventory is changed and is no longer valid. The control point re-validates the validation inventory.