Messages in this thread | | | From | yipee <> | Subject | struct page for a non-physical-memory address | Date | Wed, 30 Aug 2006 13:51:21 +0000 (UTC) |
| |
Hi,
I want to let a nopage mmap handler return a 'struct page' that refers to a non-physical-memory address (e.g. some device memory). pfn_valid(x) fails for this address (returning 0) so pfn_to_page(x) can't be used. How can I implement this functionality? Must the VM_IO bit be set? Are there several methods to implement this?
thanks, y
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |