Memory protection is a way to control memory access rights on a computer, and is a part of most modern instruction set architectures and operating systems...
18 KB (2,273 words) - 11:11, 19 March 2024
A memory protection unit (MPU) is a computer hardware unit that provides memory protection. It is usually implemented as part of the central processing...
3 KB (245 words) - 10:08, 10 May 2024
kernel space. Primarily, this separation serves to provide memory protection and hardware protection from malicious or errant software behaviour. Kernel space...
5 KB (514 words) - 23:13, 16 June 2024
Kernel (operating system) (redirect from Kernel memory)
systems where the kernel is included in application address spaces, memory protection is used to prevent unauthorized applications from modifying the kernel...
82 KB (10,157 words) - 09:48, 7 July 2024
Computer multitasking (section Memory protection)
special hardware to securely support multiple tasks, such as memory protection, and protection rings that ensure the supervisory software cannot be damaged...
20 KB (2,386 words) - 17:48, 4 June 2024
exceptions, as general protection faults, even though they have nothing to do with memory protection. If a CPU detects a protection violation, it stops executing...
12 KB (1,262 words) - 21:54, 27 May 2024
Segmentation is one method of implementing memory protection. Paging is another, and they can be combined. The size of a memory segment is generally not fixed and...
17 KB (2,134 words) - 04:30, 15 April 2024
generally perform additional memory-related tasks as well. Memory protection blocks attempts by a program to access memory it has not previously requested...
45 KB (6,672 words) - 22:15, 15 July 2024
Memory management is a form of resource management applied to computer memory. The essential requirement of memory management is to provide ways to dynamically...
23 KB (2,711 words) - 12:42, 15 July 2024
Intel MPX (redirect from Memory Protection Extensions)
Intel MPX (Memory Protection Extensions) are discontinued set of extensions to the x86 instruction set architecture. With compiler, runtime library and...
13 KB (1,261 words) - 18:42, 18 July 2024
device addresses or memory mapped I/O addresses in this context) to physical addresses. Some units also provide memory protection from faulty or malicious...
12 KB (1,299 words) - 06:08, 26 September 2023
Debugger (section Memory protection)
changes in language as they occur. Some debuggers also incorporate memory protection to avoid storage violations such as buffer overflow. This may be extremely...
11 KB (1,373 words) - 09:21, 12 June 2024
on the memory model, paged memory functionality is usually hardwired into a CPU/MCU by using a Memory Management Unit (MMU) or Memory Protection Unit (MPU)...
42 KB (5,345 words) - 23:29, 11 July 2024
random virtual memory page, allowing invalid reads and writes to be stopped and debugged at the exact instruction that causes them. Protection relies upon...
17 KB (1,844 words) - 20:22, 26 June 2024
Nios II (section Memory Protection Unit)
and protection, such as the Linux kernel. Without an MMU, Nios is restricted to operating systems which use a simplified protection and virtual memory-model:...
9 KB (1,099 words) - 23:24, 16 May 2024
programming language Memory address register Memory allocation Memory management unit (MMU) Memory model (programming) Memory protection Memory segmentation Offset...
15 KB (1,797 words) - 17:13, 22 July 2024
Cortex-M0+ microcontrollers have bit-band. Memory Protection Unit (MPU): Provides support for protecting regions of memory through enforcing privilege and access...
80 KB (5,756 words) - 19:13, 29 June 2024
security feature in operating systems and virtual machines. It is a memory protection policy whereby every page in a process's or kernel's address space...
7 KB (910 words) - 20:38, 1 July 2024
Operating system (section Direct memory access)
the system. Memory protection enables the kernel to limit a process' access to the computer's memory. Various methods of memory protection exist, including...
95 KB (10,971 words) - 09:41, 19 July 2024
Accessing such memory usually causes operating system exceptions, that most commonly lead to a program crash (unless suitable memory protection software is...
4 KB (478 words) - 16:46, 22 July 2023
In computing, virtual memory, or virtual storage, is a memory management technique that provides an "idealized abstraction of the storage resources that...
38 KB (4,698 words) - 00:24, 17 January 2024
managed code. Internal security uses type safety instead of hardware memory protection. The lowest-level x86 interrupt dispatch code is written in assembly...
9 KB (743 words) - 01:56, 2 April 2024
In computer security, executable-space protection marks memory regions as non-executable, such that an attempt to execute machine code in these regions...
21 KB (2,896 words) - 04:04, 23 March 2024
kernel could also cause BSoDs. Because of the instability and lack of memory protection in Windows 9x OSes, BSoDs were much more common. The Windows Embedded...
39 KB (3,934 words) - 18:48, 21 July 2024
operating systems, memory management is the function responsible for managing the computer's primary memory.: 105–208 The memory management function...
11 KB (1,380 words) - 20:05, 17 June 2024
OpenBSD security features (section Memory protection)
W^X, a memory management scheme to ensure that memory is either writable or executable, but never both, which provides another layer of protection against...
30 KB (3,213 words) - 23:29, 8 April 2024
access to all addressable memory, I/O addresses and peripheral hardware. Real mode provides no support for memory protection, multitasking, or code privilege...
10 KB (1,508 words) - 10:08, 25 June 2024
run inside the same address space, where the segmented memory provides a degree of protection. Windows 3.0 also featured improvements to the user interface...
101 KB (8,895 words) - 15:22, 20 July 2024
Trust Domain Extensions (section Memory protections)
receive some TDX protections. Private memory received full TDX confidentiality and integrity protections. TDX implements memory protection by encrypting...
10 KB (941 words) - 22:01, 17 January 2024
parallelism Memory model (addressing scheme) Memory model Memory protection Memory-disk synchronization Memory virtualization Non-uniform memory access (NUMA)...
4 KB (477 words) - 14:50, 7 August 2022