CVS commit: src/sys

["Jaromir Dolecek" <jdolecek%netbsd.org@localhost>]

Module Name:    src
Committed By:   jdolecek
Date:           Sat May 19 15:03:26 UTC 2018

Modified Files:
        src/sys/arch/amd64/include: pmap.h
        src/sys/uvm: uvm_page.c uvm_page.h uvm_pmap.h

Log Message:
add experimental new function uvm_direct_process(), to allow of read/writes
of contents of uvm pages without mapping them into kernel, using
direct map or moral equivalent; pmaps supporting the interface need
to provide pmap_direct_process() and define PMAP_DIRECT

implement the new interface for amd64; I hear alpha and mips might be relatively
easy to add too, but I lack the knowledge

part of resolution for PR kern/53124


To generate a diff of this commit:
cvs rdiff -u -r1.45 -r1.46 src/sys/arch/amd64/include/pmap.h
cvs rdiff -u -r1.197 -r1.198 src/sys/uvm/uvm_page.c
cvs rdiff -u -r1.82 -r1.83 src/sys/uvm/uvm_page.h
cvs rdiff -u -r1.38 -r1.39 src/sys/uvm/uvm_pmap.h

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.