libvirt/qemud/libvirtd_qemu.aug
Daniel P. Berrange f4c3acdf35 Make QEMU cgroups use configurable
* qemud/libvirtd_qemu.aug, qemud/test_libvirtd_qemu.aug,
   src/qemu.conf: Add 'cgroups_controllers' and 'cgroups_device_acl'
   parameters
 * src/qemu_conf.h, src/qemu_conf.c: Load & parse configuration params
   for cgroups
 * src/qemu_driver.c: Only use cgroups controllers that are activated,
   and use configured device whitelist instead of default, if set.
2009-07-23 17:38:06 +01:00

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(* /etc/libvirt/qemu.conf *)
module Libvirtd_qemu =
autoload xfm
let eol = del /[ \t]*\n/ "\n"
let value_sep = del /[ \t]*=[ \t]*/ " = "
let indent = del /[ \t]*/ ""
let array_sep = del /,[ \t\n]*/ ", "
let array_start = del /\[[ \t\n]*/ "[ "
let array_end = del /\]/ "]"
let str_val = del /\"/ "\"" . store /[^\"]*/ . del /\"/ "\""
let bool_val = store /0|1/
let str_array_element = [ seq "el" . str_val ] . del /[ \t\n]*/ ""
let str_array_val = counter "el" . array_start . ( str_array_element . ( array_sep . str_array_element ) * ) ? . array_end
let str_entry (kw:string) = [ key kw . value_sep . str_val ]
let bool_entry (kw:string) = [ key kw . value_sep . bool_val ]
let str_array_entry (kw:string) = [ key kw . value_sep . str_array_val ]
(* Config entry grouped by function - same order as example config *)
let vnc_entry = str_entry "vnc_listen"
| bool_entry "vnc_tls"
| str_entry "vnc_tls_x509_cert_dir"
| bool_entry "vnc_tls_x509_verify"
| str_entry "vnc_password"
| bool_entry "vnc_sasl"
| str_entry "vnc_sasl_dir"
| str_entry "user"
| str_entry "group"
| str_array_entry "cgroup_controllers"
| str_array_entry "cgroup_device_acl"
(* Each enty in the config is one of the following three ... *)
let entry = vnc_entry
let comment = [ label "#comment" . del /#[ \t]*/ "# " . store /([^ \t\n][^\n]*)?/ . del /\n/ "\n" ]
let empty = [ label "#empty" . eol ]
let record = indent . entry . eol
let lns = ( record | comment | empty ) *
let filter = incl "/etc/libvirt/qemu.conf"
. Util.stdexcl
let xfm = transform lns filter