arch/x86/kvm/Kconfig

   1 #
   2 # KVM configuration
   3 #
   4
   5 source "virt/kvm/Kconfig"
   6
   7 menuconfig VIRTUALIZATION
   8         bool "Virtualization"
   9         depends on HAVE_KVM || X86
  10         default y
  11         ---help---
  12           Say Y here to get to see options for using your Linux host to run other
  13           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 disabled.
  17
  18 if VIRTUALIZATION
  19
  20 config KVM
  21         tristate "Kernel-based Virtual Machine (KVM) support"
  22         depends on HAVE_KVM
  23         depends on HIGH_RES_TIMERS
  24         # for TASKSTATS/TASK_DELAY_ACCT:
  25         depends on NET
  26         select PREEMPT_NOTIFIERS
  27         select MMU_NOTIFIER
  28         select ANON_INODES
  29         select HAVE_KVM_IRQCHIP
  30         select HAVE_KVM_IRQFD
  31         select IRQ_BYPASS_MANAGER
  32         select HAVE_KVM_IRQ_BYPASS
  33         select HAVE_KVM_IRQ_ROUTING
  34         select HAVE_KVM_EVENTFD
  35         select KVM_APIC_ARCHITECTURE
  36         select KVM_ASYNC_PF
  37         select USER_RETURN_NOTIFIER
  38         select KVM_MMIO
  39         select TASKSTATS
  40         select TASK_DELAY_ACCT
  41         select PERF_EVENTS
  42         select HAVE_KVM_MSI
  43         select HAVE_KVM_CPU_RELAX_INTERCEPT
  44         select KVM_GENERIC_DIRTYLOG_READ_PROTECT
  45         select KVM_VFIO
  46         select SRCU
  47         ---help---
  48           Support hosting fully virtualized guest machines using hardware
  49           virtualization extensions.  You will need a fairly recent
  50           processor equipped with virtualization extensions. You will also
  51           need to select one or more of the processor modules below.
  52
  53           This module provides access to the hardware capabilities through
  54           a character device node named /dev/kvm.
  55
  56           To compile this as a module, choose M here: the module
  57           will be called kvm.
  58
  59           If unsure, say N.
  60
  61 config KVM_INTEL
  62         tristate "KVM for Intel processors support"
  63         depends on KVM
  64         # for perf_guest_get_msrs():
  65         depends on CPU_SUP_INTEL
  66         ---help---
  67           Provides support for KVM on Intel processors equipped with the VT
  68           extensions.
  69
  70           To compile this as a module, choose M here: the module
  71           will be called kvm-intel.
  72
  73 config KVM_AMD
  74         tristate "KVM for AMD processors support"
  75         depends on KVM
  76         ---help---
  77           Provides support for KVM on AMD processors equipped with the AMD-V
  78           (SVM) extensions.
  79
  80           To compile this as a module, choose M here: the module
  81           will be called kvm-amd.
  82
  83 config KVM_MMU_AUDIT
  84         bool "Audit KVM MMU"
  85         depends on KVM && TRACEPOINTS
  86         ---help---
  87          This option adds a R/W kVM module parameter 'mmu_audit', which allows
  88          auditing of KVM MMU events at runtime.
  89
  90 config KVM_DEVICE_ASSIGNMENT
  91         bool "KVM legacy PCI device assignment support (DEPRECATED)"
  92         depends on KVM && PCI && IOMMU_API
  93         default n
  94         ---help---
  95           Provide support for legacy PCI device assignment through KVM.  The
  96           kernel now also supports a full featured userspace device driver
  97           framework through VFIO, which supersedes this support and provides
  98           better security.
  99
 100           If unsure, say N.
 101
 102 # OK, it's a little counter-intuitive to do this, but it puts it neatly under
 103 # the virtualization menu.
 104 source drivers/vhost/Kconfig
 105 source drivers/lguest/Kconfig
 106
 107 endif # VIRTUALIZATION