osf1 man page for vtop

vtop(9r)																  vtop(9r)

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

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

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

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

																	  vtop(9r)