CVS commit: src

["Maxime Villard" <maxv%netbsd.org@localhost>]

Module Name:    src
Committed By:   maxv
Date:           Wed Nov  7 07:43:08 UTC 2018

Modified Files:
        src/distrib/sets/lists/comp: md.amd64
        src/distrib/sets/lists/modules: md.amd64
        src/etc: MAKEDEV.tmpl
        src/sys/conf: files majors
        src/sys/dev: Makefile
        src/sys/modules: Makefile
Added Files:
        src/sys/dev/nvmm: Makefile files.nvmm nvmm.c nvmm.h nvmm_internal.h
            nvmm_ioctl.h
        src/sys/dev/nvmm/x86: Makefile nvmm_x86.h nvmm_x86_svm.c
            nvmm_x86_svmfunc.S
        src/sys/modules/nvmm: Makefile nvmm.ioconf

Log Message:
Add NVMM - for NetBSD Virtual Machine Monitor -, a kernel driver that
provides support for hardware-accelerated virtualization on NetBSD.

It is made of an MI frontend, to which MD backends can be plugged. One
MD backend is implemented, x86-SVM, for x86 AMD CPUs.

We install

        /usr/include/dev/nvmm/nvmm.h
        /usr/include/dev/nvmm/nvmm_ioctl.h
        /usr/include/dev/nvmm/{arch}/nvmm_{arch}.h

And the kernel module. For now, the only architecture where we do that
is amd64 (arch=x86).

NVMM is not enabled by default in amd64-GENERIC, but is instead easily
modloadable.

Sent to tech-kern@ a month ago. Validated with kASan, and optimized
with tprof.


To generate a diff of this commit:
cvs rdiff -u -r1.259 -r1.260 src/distrib/sets/lists/comp/md.amd64
cvs rdiff -u -r1.77 -r1.78 src/distrib/sets/lists/modules/md.amd64
cvs rdiff -u -r1.195 -r1.196 src/etc/MAKEDEV.tmpl
cvs rdiff -u -r1.1215 -r1.1216 src/sys/conf/files
cvs rdiff -u -r1.79 -r1.80 src/sys/conf/majors
cvs rdiff -u -r1.39 -r1.40 src/sys/dev/Makefile
cvs rdiff -u -r0 -r1.1 src/sys/dev/nvmm/Makefile src/sys/dev/nvmm/files.nvmm \
    src/sys/dev/nvmm/nvmm.c src/sys/dev/nvmm/nvmm.h \
    src/sys/dev/nvmm/nvmm_internal.h src/sys/dev/nvmm/nvmm_ioctl.h
cvs rdiff -u -r0 -r1.1 src/sys/dev/nvmm/x86/Makefile \
    src/sys/dev/nvmm/x86/nvmm_x86.h src/sys/dev/nvmm/x86/nvmm_x86_svm.c \
    src/sys/dev/nvmm/x86/nvmm_x86_svmfunc.S
cvs rdiff -u -r1.209 -r1.210 src/sys/modules/Makefile
cvs rdiff -u -r0 -r1.1 src/sys/modules/nvmm/Makefile \
    src/sys/modules/nvmm/nvmm.ioconf

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