We don't need KVM stack.

software/kvm/software.cfg

 [buildout]
 extends =
-  ../../stack/kvm.cfg
+  ../../stack/shacache-client.cfg
+  ../../component/python-2.7/buildout.cfg
+  ../../component/lxml-python/buildout.cfg
+  ../../component/git/buildout.cfg
+  ../../component/zlib/buildout.cfg
+  ../../component/readline/buildout.cfg
+  ../../component/ncurses/buildout.cfg
+  ../../component/libuuid/buildout.cfg
+  ../../component/noVNC/buildout.cfg
+  ../../component/openssl/buildout.cfg
+  ../../component/rdiff-backup/buildout.cfg
+  ../../component/dcron/buildout.cfg
+  ../../component/libpng/buildout.cfg
 
 develop =
   ${:parts-directory}/websockify
@@ -11,6 +23,52 @@ parts =
   eggs
   check-local-eggs
 
+find-links +=
+  http://www.nexedi.org/static/packages/source/slapos.buildout/
+
+versions = versions
+
+# Use only quite well working sites.
+allow-hosts =
+  *.nexedi.org
+  *.python.org
+  *.sourceforge.net
+  alastairs-place.net
+  dist.repoze.org
+  effbot.org
+  github.com
+  peak.telecommunity.com
+  psutil.googlecode.com
+  www.dabeaz.com
+  www.owlfish.com
+
+[gpg-error]
+recipe = hexagonit.recipe.cmmi
+url = ftp://ftp.gnupg.org/gcrypt/libgpg-error/libgpg-error-1.10.tar.gz
+md5sum = 7c2710ef439f82ac429b88fec88e9a4c
+
+[gcrypt]
+recipe = hexagonit.recipe.cmmi
+url = ftp://ftp.gnupg.org/gcrypt/libgcrypt/libgcrypt-1.4.6.tar.gz
+md5sum = bfd45922eefb8a24d598af77366220d4
+configure-options =
+  --with-gpg-error-prefix=${gpg-error:location}
+environment =
+  CPPFLAGS=-I${gpg-error:location}/include
+  LDFLAGS=-Wl,-rpath -Wl,${gpg-error:location}/lib -Wl,${gpg-error:location}/lib/libgpg-error.so.0
+
+[gnutls]
+# XXX-Cedric : update to latest gnutls
+recipe = hexagonit.recipe.cmmi
+url = ftp://ftp.gnupg.org/gcrypt/gnutls/gnutls-2.8.6.tar.bz2
+md5sum = eb0a6d7d3cb9ac684d971c14f9f6d3ba
+configure-options =
+  --with-libgcrypt-prefix=${gcrypt:location}
+environment =
+  CPPFLAGS=-I${zlib:location}/include -I${readline:location}/include -I${ncurses:location}/include -I${ncurses:location}/include/ncursesw -I${gcrypt:location}/include -I${gpg-error:location}/include
+  LDFLAGS=-L${readline:location}/lib -L${ncurses:location}/lib -L${gcrypt:location}/lib -Wl,-rpath -Wl,${zlib:location}/lib -Wl,-rpath -Wl,${readline:location}/lib -Wl,-rpath -Wl,${ncurses:location}/lib -Wl,-rpath -Wl,${gcrypt:location}/lib -Wl,-rpath -Wl,${gpg-error:location}/lib -Wl,${gcrypt:location}/lib/libgcrypt.so.11
+  PKG_CONFIG=${zlib:location}/lib/pkgconfig
+
 #XXX-Cedric : Currently, one can only access to KVM using noVNC.
 #             Ideally one should be able to access KVM by using either NoVNC or VNC.
 #             Problem is : no native crypto support in web browsers. So we have to disable ssl
@@ -24,13 +82,31 @@ parts =
 
 #XXX-Cedric: Check status of 
 #            https://www.tiolive.com/nexedi/bug_module/20110819-11F4F70 for
-#            Chrome >= 14 and Firefox >=7 can access to noVNC.
+#            Chrome >= 14 and Firefox >=7 can access to noVNC. (should be solved)
 
-[eggs]
-dummy =
-  ${websockify:location}
-eggs +=
-  websockify
+#XXX-Cedric : add list of keyboard layouts (azerty/us querty/...) parameter to qemu
+
+[kvm]
+recipe = hexagonit.recipe.cmmi
+url = http://downloads.sourceforge.net/project/kvm/qemu-kvm/0.15.1/qemu-kvm-0.15.1.tar.gz
+md5sum = 8800a7d6b3aa4a168ea7f78dc66c0320
+configure-options =
+  --disable-sdl
+  --disable-xen
+  --enable-vnc-tls
+  --disable-vnc-sasl
+  --disable-curses
+  --disable-curl
+  --enable-kvm
+  --disable-docs
+  --enable-vnc-png
+  --disable-vnc-jpeg
+  --extra-cflags="-I${gnutls:location}/include -I${libuuid:location}/include -I${zlib:location}/include -I${libpng:location}/include"
+  --extra-ldflags="-Wl,-rpath -Wl,${glib:location}/lib -L${glib:location}/lib -Wl,-rpath -Wl,${gnutls:location}/lib -L${gnutls:location}/lib -L${gettext:location}/lib -Wl,-rpath -Wl,${gettext:location}/lib -Wl,-rpath -Wl,${libpng:location}/lib -L${libpng:location}/lib -L${libuuid:location}/lib -Wl,-rpath -Wl,${libuuid:location}/lib -L${zlib:location}/lib -Wl,-rpath -Wl,${zlib:location}/lib -lpng -lz -lgnutls"
+  --disable-werror
+environment =
+  PATH=${pkgconfig:location}/bin:%(PATH)s
+  PKG_CONFIG_PATH=${gnutls:location}/lib/pkgconfig:${glib:location}/lib/pkgconfig
 
 [websockify]
 # XXX-Cedric : use official egg from pypi when it is released
@@ -50,6 +126,16 @@ update-command = ${:command}
 command = grep parts ${buildout:develop-eggs-directory}/websockify.egg-link
 depends = ${eggs:dummy}
 
+[eggs]
+python = python2.7
+recipe = z3c.recipe.scripts
+dummy =
+  ${websockify:location}
+eggs =
+  ${lxml-python:egg}
+  slapos.cookbook
+  websockify
+  
 [template]
 recipe = slapos.recipe.template
 url = ${:_profile_base_location_}/instance.cfg

stack/kvm.cfg

-[buildout]
-extends =
-  shacache-client.cfg
-  ../component/python-2.7/buildout.cfg
-  ../component/lxml-python/buildout.cfg
-  ../component/git/buildout.cfg
-  ../component/zlib/buildout.cfg
-  ../component/readline/buildout.cfg
-  ../component/ncurses/buildout.cfg
-  ../component/libuuid/buildout.cfg
-  ../component/noVNC/buildout.cfg
-  ../component/openssl/buildout.cfg
-  ../component/rdiff-backup/buildout.cfg
-  ../component/dcron/buildout.cfg
-  ../component/libpng/buildout.cfg
-
-parts =
-  template
-  kvm
-  eggs
-
-find-links +=
-  http://www.nexedi.org/static/packages/source/slapos.buildout/
-
-versions = versions
-
-# Use only quite well working sites.
-allow-hosts =
-  *.nexedi.org
-  *.python.org
-  *.sourceforge.net
-  alastairs-place.net
-  dist.repoze.org
-  effbot.org
-  github.com
-  peak.telecommunity.com
-  psutil.googlecode.com
-  www.dabeaz.com
-  www.owlfish.com
-
-[gpg-error]
-recipe = hexagonit.recipe.cmmi
-url = ftp://ftp.gnupg.org/gcrypt/libgpg-error/libgpg-error-1.10.tar.gz
-md5sum = 7c2710ef439f82ac429b88fec88e9a4c
-
-[gcrypt]
-recipe = hexagonit.recipe.cmmi
-url = ftp://ftp.gnupg.org/gcrypt/libgcrypt/libgcrypt-1.4.6.tar.gz
-md5sum = bfd45922eefb8a24d598af77366220d4
-configure-options =
-  --with-gpg-error-prefix=${gpg-error:location}
-environment =
-  CPPFLAGS=-I${gpg-error:location}/include
-  LDFLAGS=-Wl,-rpath -Wl,${gpg-error:location}/lib -Wl,${gpg-error:location}/lib/libgpg-error.so.0
-
-[gnutls]
-# XXX-Cedric : update to latest gnutls
-recipe = hexagonit.recipe.cmmi
-url = ftp://ftp.gnupg.org/gcrypt/gnutls/gnutls-2.8.6.tar.bz2
-md5sum = eb0a6d7d3cb9ac684d971c14f9f6d3ba
-configure-options =
-  --with-libgcrypt-prefix=${gcrypt:location}
-environment =
-  CPPFLAGS=-I${zlib:location}/include -I${readline:location}/include -I${ncurses:location}/include -I${ncurses:location}/include/ncursesw -I${gcrypt:location}/include -I${gpg-error:location}/include
-  LDFLAGS=-L${readline:location}/lib -L${ncurses:location}/lib -L${gcrypt:location}/lib -Wl,-rpath -Wl,${zlib:location}/lib -Wl,-rpath -Wl,${readline:location}/lib -Wl,-rpath -Wl,${ncurses:location}/lib -Wl,-rpath -Wl,${gcrypt:location}/lib -Wl,-rpath -Wl,${gpg-error:location}/lib -Wl,${gcrypt:location}/lib/libgcrypt.so.11
-  PKG_CONFIG=${zlib:location}/lib/pkgconfig
-
-[kvm]
-recipe = hexagonit.recipe.cmmi
-url = http://downloads.sourceforge.net/project/kvm/qemu-kvm/0.15.1/qemu-kvm-0.15.1.tar.gz
-md5sum = 8800a7d6b3aa4a168ea7f78dc66c0320
-configure-options =
-  --disable-sdl
-  --disable-xen
-  --enable-vnc-tls
-  --disable-vnc-sasl
-  --disable-curses
-  --disable-curl
-  --enable-kvm
-  --disable-docs
-  --enable-vnc-png
-  --disable-vnc-jpeg
-  --extra-cflags="-I${gnutls:location}/include -I${libuuid:location}/include -I${zlib:location}/include -I${libpng:location}/include"
-  --extra-ldflags="-Wl,-rpath -Wl,${glib:location}/lib -L${glib:location}/lib -Wl,-rpath -Wl,${gnutls:location}/lib -L${gnutls:location}/lib -L${gettext:location}/lib -Wl,-rpath -Wl,${gettext:location}/lib -Wl,-rpath -Wl,${libpng:location}/lib -L${libpng:location}/lib -L${libuuid:location}/lib -Wl,-rpath -Wl,${libuuid:location}/lib -L${zlib:location}/lib -Wl,-rpath -Wl,${zlib:location}/lib -lpng -lz -lgnutls"
-  --disable-werror
-environment =
-  PATH=${pkgconfig:location}/bin:%(PATH)s
-  PKG_CONFIG_PATH=${gnutls:location}/lib/pkgconfig:${glib:location}/lib/pkgconfig
-
-[eggs]
-python = python2.7
-recipe = z3c.recipe.scripts
-eggs =
-  ${lxml-python:egg}
-  slapos.cookbook