Extended page table x86 (1 Ergebnisse)

Taschenbuch. Zustand: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Please note that the content of this book primarily consists of articlesavailable from Wikipedia or other free sources online. Extended PageTable (EPT) is an Intel second generation x86 virtualization technologyfor the memory management unit (MMU). When this feature is active, theordinary IA-32 page tables (referenced by control register CR3)translate from linear addresses to guest-physical addresses. A separateset of page tables (the EPT tables) translate from guest-physicaladdresses to the host-physical addresses that are used to access memory.As a result, guest software can be allowed to modify its own IA-32 pagetables and directly handle page faults. This allows a virtual machinemanager (VMM) to avoid the VM exits associated with page-tablevirtualization, which are a major source of virtualization overheadwithout EPT.…