How Linux figure out amount of RAM on a system
by rksyeung from LinuxQuestions.org on (#4Z1E2)
I think U-BOOT could do auto-detection. Does it pass this information to Linux? Or is this something users need to configure via some API programmatically? If latter, where in the source code should I expect to find it?
If I were to reserve some memory region (take it out of all memory Linux may know for memory management), what is the method?


If I were to reserve some memory region (take it out of all memory Linux may know for memory management), what is the method?