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@xxxxxxxxx> 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@xxxxxxxxxxxxxxxxx > http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies > > _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
