NAME    [Toc]    [Back]

       copy_to_phys - General: Copies data from a virtual address
       to a physical address

SYNOPSIS    [Toc]    [Back]

       void copy_to_phys(
               vm_offset_t virt_src,
               vm_offset_t phys_dest,
               unsigned int bcount );

ARGUMENTS    [Toc]    [Back]

       Specifies the virtual address of the data  to  be  copied.
       Specifies the physical address to copy the data to.  Specifies
 the number of bytes to copy.

DESCRIPTION    [Toc]    [Back]

       The copy_to_phys routine copies a specified amount of virtually
  addressed  memory  to physically addressed memory.
       The addresses reside only in system memory space  and  not
       in the memory space on I/O buses.

CAUTIONS    [Toc]    [Back]

       If  any overlap exists between virt_src and phys_dest, the
       copy_to_phys routine panics.

RETURN VALUES    [Toc]    [Back]

       None

SEE ALSO    [Toc]    [Back]

       Routines:    copyin(9r),    copyout(9r),    io_copyin(9r),
       io_copyio(9r), io_copyout(9r)



                                                 copy_to_phys(9r)