Hi,
I need to obtain the physical address at which a specific pfn resides. I obtain the physical address as follows:
start addr = pfn * PAGE_SIZE
Thus if pfn = 2449689, then start addr = 0 x 2 5611 9000
When I apply this calculation to determine the start of the HIGHMEM physical address I get the correct value of 896MB.
However, the last pfn in HIGHMEM is 2490368 which returns a physical address of 0x2 6000 0000 which is
9.2 GB and I have only 8 GB of physical memory!
What am I doing wrong?
Thanks
Bithika
