tsys address

Analysis of the Linux memory management mechanism, not from the above concepts, before introducing the above several concepts, first from the "in-depth understanding of the Linux kernel," the book excerpt from a few paragraphs on the above nouns explanation: first , "deep understanding of the Linux kernel" explanation Logical addresses (Logical address) An address (somewhat esoteric) that is contained in a

I. Concepts Physical address)It is used for memory chip-level unit addressing, which corresponds to the address bus connected to the processor and CPU.-- This concept should be better understood among these concepts, but it is worth mentioning that although physical addresses can be directly understood as the memory itself inserted on the machine, consider the memory as a large array of serial numbers from

Logical Address virtual address physical address bus address difference, logical Bus 1. Logical Address Logical Address is the most vague concept. The explanation in understanding the linux kernel is related to virtual addresses.

This article was reproduced from: http://blog.csdn.net/yusiguyuan/article/details/9668363This article describes the concept of four nouns, which are analyzed for four address conversionsThe CPU translates the address in one virtual memory space into a physical address, which requires two steps (for example):First, it will be given a logical

logical addresses (Logical address) means thatrelated to a segment generated by a programOffset Address Section. For example, you can read the pointer variable itself ( operation) in the C language pointer programming, which is actually the logical address, which is relative to the address of the data segment of your

IP address, subnet mask, network number, host number, network address, host address, IP address IP Address: 4-segment decimal, 32-bit binary, for example, 192.168.1.1 binary is: 11000000 | 10101000 | 00000001 | 00000001The subnet mask shows how many bits are the network numb

[To] http://bbs.chinaunix.net/thread-2083672-1-1.html I am going to post a year-end summary post for the Chinese New Year. It's just my personal understanding. It's incorrect.The hardware platform involved in this post is x86. If it is another platform, you may not be able to perform one-to-one check. However, I think it is completely feasible.I. Concepts Physical address) It is used for memory chip-level unit addressing, which corresponds to the

The hardware platform involved in this post is x86. If it is another platform, you may not be able to perform one-to-one check. However, I think it is completely feasible. I. Concepts Physical address)It is used for memory chip-level unit addressing, which corresponds to the address bus connected to the processor and CPU.-- This concept should be better understood among these concepts, but it is worth menti

1. Logical Address Logical Address is the most vague concept. The explanation in understanding the Linux kernel is related to virtual addresses. Based on the concept of hardware MMU and Software Memory Management, you can refer to the second chapter of utlk memory addressing, I have a very detailed explanation. However, the mips architecture processor used in the work is different. In the mips architecture

Reference"Deep understanding of computer systems"Deep understanding of the Linux kernel"80x86 assembly Language Programming""The design and implementation of the operating system" In order to protect the program and data in memory and share hardware support, in order to provide hardware support for realizing virtual memory, modern CPU not only uses the extended memory segment management mechanism , but also provides optional memory paging management mechanism. Physical addresses (physical

The MAC address is divided into three categories, namely broadcast address, multicast address and unicast address. First of all, FF:FF:FF:FF:FF:FF is undoubtedly the broadcast address. Each NIC is shipped with a single unicast address