VIRT_TO_PHYS(9)                     Public Functions Provided                     VIRT_TO_PHYS(9)



NAME
       virt_to_phys - map virtual addresses to physical

SYNOPSIS
       phys_addr_t virt_to_phys(volatile void * address);

ARGUMENTS
       address
           address to remap

DESCRIPTION
       The returned physical address is the physical (CPU) mapping for the memory address given.
       It is only valid to use this function on addresses directly mapped or allocated via
       kmalloc.

       This function does not give bus mappings for DMA transfers. In almost all conceivable
       cases a device driver should not be using this function

AUTHORS
       Matthew Wilcox <matthew AT wil.cx>
           Author.

       Alan Cox <alan AT lxorguk.uk>
           Author.

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