REMAP_PFN_RANGE(9)                  Memory Management in Linux                 REMAP_PFN_RANGE(9)



NAME
       remap_pfn_range - remap kernel memory to userspace

SYNOPSIS
       int remap_pfn_range(struct vm_area_struct * vma, unsigned long addr, unsigned long pfn,
                           unsigned long size, pgprot_t prot);

ARGUMENTS
       vma
           user vma to map to

       addr
           target user address to start at

       pfn
           physical address of kernel memory

       size
           size of map area

       prot
           page protection flags for this mapping

NOTE
       this is only safe if the mm semaphore is held when called.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                        REMAP_PFN_RANGE(9)