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Was (wer) ist page table - definition
Page table
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DATA STRUCTURE THAT MAPS VIRTUAL ADDRESSES WITH PHYSICAL ADDRESSES
Address table; Page translation table; Page translation tables; Page tables; Hierarchical page tables; Inverted page table; Multilevel page table; Pte bit; Page Table Entry; Page table entry; Frame table; Page walk
A page table is the data structure used by a virtual memory system in a computer operating system to store the mapping between virtual addresses and physical addresses. Virtual addresses are used by the program executed by the accessing process, while physical addresses are used by the hardware, or more specifically, by the random-access memory (RAM) subsystem.
Page attribute table
PROCESSOR SUPPLEMENTARY CAPABILITY EXTENSION TO THE PAGE TABLE FORMAT OF CERTAIN X86 AND X86-64 MICROPROCESSORS
Page Allocation Table; Page Attribute Table
The page attribute table (PAT) is a processor supplementary capability extension to the page table format of certain x86 and x86-64 microprocessors. Like memory type range registers (MTRRs), they allow for fine-grained control over how areas of memory are cached, and are a companion feature to the MTRRs.
Kernel page-table isolation
HARDENING TECHNIQUE IN LINUX KERNEL
KPTI; KAISER; Kpti; Kernel page table isolation; Kernel Page Table Isolation; Page-table isolation; Page table isolation; Kernel Address Isolation to have Side-channels Efficiently Removed; Kernel address isolation to have side-channels efficiently removed
Kernel page-table isolation (KPTI or PTI, previously called KAISER) is a Linux kernel feature that mitigates the Meltdown security vulnerability (affecting mainly Intel's x86 CPUs) and improves kernel hardening against attempts to bypass kernel address space layout randomization (KASLR). It works by better isolating user space and kernel space memory.
