github.com/rigado/snapd@v2.42.5-go-mod+incompatible/interfaces/builtin/cpu_control.go (about)

     1  // -*- Mode: Go; indent-tabs-mode: t -*-
     2  
     3  /*
     4   * Copyright (C) 2018 Canonical Ltd
     5   *
     6   * This program is free software: you can redistribute it and/or modify
     7   * it under the terms of the GNU General Public License version 3 as
     8   * published by the Free Software Foundation.
     9   *
    10   * This program is distributed in the hope that it will be useful,
    11   * but WITHOUT ANY WARRANTY; without even the implied warranty of
    12   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    13   * GNU General Public License for more details.
    14   *
    15   * You should have received a copy of the GNU General Public License
    16   * along with this program.  If not, see <http://www.gnu.org/licenses/>.
    17   *
    18   */
    19  
    20  package builtin
    21  
    22  const cpuControlSummary = `allows setting CPU tunables`
    23  
    24  const cpuControlBaseDeclarationSlots = `
    25    cpu-control:
    26      allow-installation:
    27        slot-snap-type:
    28          - core
    29      deny-auto-connection: true
    30  `
    31  
    32  const cpuControlConnectedPlugAppArmor = `
    33  # Description: This interface allows for setting CPU tunables
    34  /sys/devices/system/cpu/**/ r,
    35  /sys/devices/system/cpu/cpu*/online rw,
    36  /sys/devices/system/cpu/smt/*       r,
    37  /sys/devices/system/cpu/smt/control w,
    38  `
    39  
    40  func init() {
    41  	registerIface(&commonInterface{
    42  		name:                  "cpu-control",
    43  		summary:               cpuControlSummary,
    44  		implicitOnCore:        true,
    45  		implicitOnClassic:     true,
    46  		baseDeclarationSlots:  cpuControlBaseDeclarationSlots,
    47  		connectedPlugAppArmor: cpuControlConnectedPlugAppArmor,
    48  		reservedForOS:         true,
    49  	})
    50  }