arch/arm64/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 MMU_NOTIFIER
  22         select PREEMPT_NOTIFIERS
  23         select ANON_INODES
  24         select HAVE_KVM_CPU_RELAX_INTERCEPT
  25         select HAVE_KVM_ARCH_TLB_FLUSH_ALL
  26         select KVM_MMIO
  27         select KVM_ARM_HOST
  28         select KVM_ARM_VGIC
  29         select KVM_ARM_TIMER
  30         select KVM_GENERIC_DIRTYLOG_READ_PROTECT
  31         select SRCU
  32         ---help---
  33           Support hosting virtualized guest machines.
  34
  35           If unsure, say N.
  36
  37 config KVM_ARM_HOST
  38         bool
  39         ---help---
  40           Provides host support for ARM processors.
  41
  42 config KVM_ARM_MAX_VCPUS
  43         int "Number maximum supported virtual CPUs per VM"
  44         depends on KVM_ARM_HOST
  45         default 4
  46         help
  47           Static number of max supported virtual CPUs per VM.
  48
  49           If you choose a high number, the vcpu structures will be quite
  50           large, so only choose a reasonable number that you expect to
  51           actually use.
  52
  53 config KVM_ARM_VGIC
  54         bool
  55         depends on KVM_ARM_HOST && OF
  56         select HAVE_KVM_IRQCHIP
  57         ---help---
  58           Adds support for a hardware assisted, in-kernel GIC emulation.
  59
  60 config KVM_ARM_TIMER
  61         bool
  62         depends on KVM_ARM_VGIC
  63         ---help---
  64           Adds support for the Architected Timers in virtual machines.
  65
  66 endif # VIRTUALIZATION