Paravirtualizované

Paravirtualizované is a term used in computer science, specifically within the field of virtualization. It describes a modified approach to virtual machine (VM) architecture where the guest operating system is aware that it is running in a virtualized environment. Unlike full virtualization, where the hypervisor emulates hardware for the guest OS, paravirtualization involves making specific changes to the guest OS's kernel. These modifications allow the guest OS to communicate directly with the hypervisor through a technique called hypercalls. This direct communication bypasses the need for extensive hardware emulation, leading to improved performance for certain operations. The guest OS is "aware" of its virtualized nature and cooperates with the hypervisor. This cooperation can significantly reduce the overhead associated with virtualization, especially for I/O-intensive tasks. However, implementing paravirtualization requires modifying the guest operating system, which can be a complex process. Modern virtualization solutions often support paravirtualization for common operating systems to achieve better efficiency.