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* Add Xen's udev rules. This is necessary to get automatically

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created block and network devices to work.

svn path=/nixos/trunk/; revision=23823
This commit is contained in:
Eelco Dolstra 2010-09-16 15:24:46 +00:00
parent 82f97b5fb2
commit 0442e7e82a
1 changed files with 34 additions and 7 deletions
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41
modules/virtualisation/xen.nix
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@ -4,7 +4,20 @@
with pkgs.lib; with pkgs.lib;
let cfg = config.virtualisation.xen; in let
cfg = config.virtualisation.xen;
xen = pkgs.xen;
xendConfig = pkgs.writeText "xend-config.sxp"
''
(loglevel DEBUG)
(network-script network-bridge)
(vif-script vif-bridge)
'';
in
{ {
###### interface ###### interface
@ -52,12 +65,12 @@ let cfg = config.virtualisation.xen; in
config = mkIf cfg.enable { config = mkIf cfg.enable {
environment.systemPackages = [ pkgs.xen ]; environment.systemPackages = [ xen ];
# Domain 0 requires a pvops-enabled kernel. # Domain 0 requires a pvops-enabled kernel.
boot.kernelPackages = pkgs.linuxPackages_2_6_32_xen; boot.kernelPackages = pkgs.linuxPackages_2_6_32_xen;
boot.kernelModules = [ "xen_evtchn" "xen_gntdev" ]; boot.kernelModules = [ "xen_evtchn" "xen_gntdev" "xen_blkback" "xen_netback" "xen_pciback" "blktap" ];
# The radeonfb kernel module causes the screen to go black as soon # The radeonfb kernel module causes the screen to go black as soon
# as it's loaded, so don't load it. # as it's loaded, so don't load it.
@ -69,7 +82,7 @@ let cfg = config.virtualisation.xen; in
system.extraSystemBuilderCmds = system.extraSystemBuilderCmds =
'' ''
ln -s ${pkgs.xen}/boot/xen.gz $out/xen.gz ln -s ${xen}/boot/xen.gz $out/xen.gz
echo "${toString cfg.bootParams}" > $out/xen-params echo "${toString cfg.bootParams}" > $out/xen-params
''; '';
@ -89,12 +102,12 @@ let cfg = config.virtualisation.xen; in
path = path =
[ pkgs.bridge_utils pkgs.gawk pkgs.iproute pkgs.nettools [ pkgs.bridge_utils pkgs.gawk pkgs.iproute pkgs.nettools
pkgs.utillinux pkgs.bash pkgs.xen pkgs.pciutils pkgs.procps pkgs.utillinux pkgs.bash xen pkgs.pciutils pkgs.procps
]; ];
preStart = "${pkgs.xen}/sbin/xend start"; preStart = "${xen}/sbin/xend start";
postStop = "${pkgs.xen}/sbin/xend stop"; postStop = "${xen}/sbin/xend stop";
}; };
# To prevent a race between dhclient and xend's bridge setup # To prevent a race between dhclient and xend's bridge setup
@ -102,6 +115,20 @@ let cfg = config.virtualisation.xen; in
# virtual device), start dhclient after xend. # virtual device), start dhclient after xend.
jobs.dhclient.startOn = mkOverride 50 "started xend"; jobs.dhclient.startOn = mkOverride 50 "started xend";
environment.etc =
[ { source = xendConfig;
target = "xen/xend-config.sxp";
}
{ source = "${xen}/etc/xen/scripts";
target = "xen/scripts";
}
];
# Xen provides udev rules.
services.udev.packages = [ xen ];
services.udev.path = [ pkgs.bridge_utils pkgs.iproute ];
}; };
} }