arch/arm64/kvm/Kconfig

   1 # SPDX-License-Identifier: GPL-2.0
   2 #
   3 # KVM configuration
   4 #
   5
   6 source "virt/lib/Kconfig"
   7 source "virt/kvm/Kconfig"
   8
   9 menuconfig VIRTUALIZATION
  10         bool "Virtualization"
  11         help
  12           Say Y here to get to see options for using your Linux host to run
  13           other operating systems inside virtual machines (guests).
  14           This option alone does not add any kernel code.
  15
  16           If you say N, all options in this submenu will be skipped and
  17           disabled.
  18
  19 if VIRTUALIZATION
  20
  21 menuconfig KVM
  22         bool "Kernel-based Virtual Machine (KVM) support"
  23         depends on HAVE_KVM
  24         select KVM_GENERIC_HARDWARE_ENABLING
  25         select KVM_GENERIC_MMU_NOTIFIER
  26         select PREEMPT_NOTIFIERS
  27         select HAVE_KVM_CPU_RELAX_INTERCEPT
  28         select KVM_MMIO
  29         select KVM_GENERIC_DIRTYLOG_READ_PROTECT
  30         select KVM_XFER_TO_GUEST_WORK
  31         select KVM_VFIO
  32         select HAVE_KVM_EVENTFD
  33         select HAVE_KVM_IRQFD
  34         select HAVE_KVM_DIRTY_RING_ACQ_REL
  35         select NEED_KVM_DIRTY_RING_WITH_BITMAP
  36         select HAVE_KVM_MSI
  37         select HAVE_KVM_IRQCHIP
  38         select HAVE_KVM_IRQ_ROUTING
  39         select IRQ_BYPASS_MANAGER
  40         select HAVE_KVM_IRQ_BYPASS
  41         select HAVE_KVM_VCPU_RUN_PID_CHANGE
  42         select SCHED_INFO
  43         select GUEST_PERF_EVENTS if PERF_EVENTS
  44         select INTERVAL_TREE
  45         select XARRAY_MULTI
  46         help
  47           Support hosting virtualized guest machines.
  48
  49           If unsure, say N.
  50
  51 config NVHE_EL2_DEBUG
  52         bool "Debug mode for non-VHE EL2 object"
  53         depends on KVM
  54         help
  55           Say Y here to enable the debug mode for the non-VHE KVM EL2 object.
  56           Failure reports will BUG() in the hypervisor. This is intended for
  57           local EL2 hypervisor development.
  58
  59           If unsure, say N.
  60
  61 config PROTECTED_NVHE_STACKTRACE
  62         bool "Protected KVM hypervisor stacktraces"
  63         depends on NVHE_EL2_DEBUG
  64         default n
  65         help
  66           Say Y here to enable pKVM hypervisor stacktraces on hyp_panic()
  67
  68           If using protected nVHE mode, but cannot afford the associated
  69           memory cost (less than 0.75 page per CPU) of pKVM stacktraces,
  70           say N.
  71
  72           If unsure, or not using protected nVHE (pKVM), say N.
  73
  74 endif # VIRTUALIZATION