Create a pseudo file /proc/mem_map by using a separate Linux kernel module

Creating a /proc entry ============================= Create a pseudo file /proc/mem_map by using a separate Linux kernel module (not statically linked into the kernel. From here on, all the assignments are expected to be Linux Modules). As you all know by now, mem_map is a global array that consists of all the struct page entries. It should display the following information... 1. Virtual Address of mem_map global variable in the Linux kernel. In short, contents of the variable. 2. Physical Address of mem_map location. Convert the above virtual address to physical and print it 3. Print the number of struct page entries that are available as part of the mem_map You can read some more information about mem_map at... http://www.chudov.com/tmp/LinuxVM/html/understand/node28.html Goals: ===== * You will learn how the /proc entries are created * Learn how to convert the virtual to physical and vice versa in Linux kernel * Ability to look at and if necessary understand the struct page entries Submission ========= * Module code and associated Makefile * Readme.txt - Details of how to build, execute and what to expect Notes: In some systems, mem_map variable is not exported or used. In such scenarios, please use pfn_to_page(0) in place of mem_map. Meaning and use of both are exactly same.