On most of the x86 linux boxes, I have seen it to be 2 or other variants where boot loader informs about memory map. -Rajat On Thu, Feb 3, 2011 at 10:18 AM, Arun S <inbox1.arun@gmail.com> wrote:
Hi, How does the kernel detects the amount of available System RAM in the system under x86 architecture?. Under 2.6.x kernels,
1. Does it use BIOS interrupt 15 for determining the RAM OR 2. Does the boot loader fills the e820_map as explained inDocumentation/x86/boot.txt & Documentation/x86/zero-page.txt and the kernel uses in information OR 3. Is there any other mechanism (if so, in which file under kernel tree I can find this detection code)
Thanks, Arun _______________________________________________ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies