arch/arm/kvm/Kconfig

   1 #
   2 # KVM configuration
   3 #
   4
   5 source "virt/kvm/Kconfig"
   6
   7 menuconfig VIRTUALIZATION
   8         bool "Virtualization"
   9         ---help---
  10           Say Y here to get to see options for using your Linux host to run
  11           other operating systems inside virtual machines (guests).
  12           This option alone does not add any kernel code.
  13
  14           If you say N, all options in this submenu will be skipped and
  15           disabled.
  16
  17 if VIRTUALIZATION
  18
  19 config KVM
  20         bool "Kernel-based Virtual Machine (KVM) support"
  21         select PREEMPT_NOTIFIERS
  22         select ANON_INODES
  23         select HAVE_KVM_CPU_RELAX_INTERCEPT
  24         select KVM_MMIO
  25         select KVM_ARM_HOST
  26         select SRCU
  27         depends on ARM_VIRT_EXT && ARM_LPAE
  28         ---help---
  29           Support hosting virtualized guest machines. You will also
  30           need to select one or more of the processor modules below.
  31
  32           This module provides access to the hardware capabilities through
  33           a character device node named /dev/kvm.
  34
  35           If unsure, say N.
  36
  37 config KVM_ARM_HOST
  38         bool "KVM host support for ARM cpus."
  39         depends on KVM
  40         depends on MMU
  41         select  MMU_NOTIFIER
  42         ---help---
  43           Provides host support for ARM processors.
  44
  45 config KVM_ARM_MAX_VCPUS
  46         int "Number maximum supported virtual CPUs per VM"
  47         depends on KVM_ARM_HOST
  48         default 4
  49         help
  50           Static number of max supported virtual CPUs per VM.
  51
  52           If you choose a high number, the vcpu structures will be quite
  53           large, so only choose a reasonable number that you expect to
  54           actually use.
  55
  56 config KVM_ARM_VGIC
  57         bool "KVM support for Virtual GIC"
  58         depends on KVM_ARM_HOST && OF
  59         select HAVE_KVM_IRQCHIP
  60         default y
  61         ---help---
  62           Adds support for a hardware assisted, in-kernel GIC emulation.
  63
  64 config KVM_ARM_TIMER
  65         bool "KVM support for Architected Timers"
  66         depends on KVM_ARM_VGIC && ARM_ARCH_TIMER
  67         select HAVE_KVM_IRQCHIP
  68         default y
  69         ---help---
  70           Adds support for the Architected Timers in virtual machines
  71
  72 endif # VIRTUALIZATION