NAME    [Toc]    [Back]

       vtop - General: Converts any virtual address to a physical
       address

SYNOPSIS    [Toc]    [Back]

       vm_offset_t vtop(
               struct proc *proc_p,
               vm_offset_t virt_addr );

ARGUMENTS    [Toc]    [Back]

       Specifies a pointer to a proc structure.  The vtop routine
       uses the proc structure pointer to obtain the pmap.  Specifies
 the virtual address that vtop converts to a physical
       address.

DESCRIPTION    [Toc]    [Back]

       The vtop routine converts a specified virtual address to a
       physical address.

CAUTIONS    [Toc]    [Back]

       The vtop routine panics and displays the following message
       on  the console terminal if the proc structure pointer you
       pass is NULL and the virtual address is in user space:

       vtop: user address passed with null proc pointer

RETURN VALUES    [Toc]    [Back]

       Upon successful  completion,  vtop  returns  the  physical
       address associated with the specified virtual address.



                                                         vtop(9r)