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 HAVE_KVM_IRQ_ROUTING
  32         select HAVE_KVM_EVENTFD
  33         select KVM_APIC_ARCHITECTURE
  34         select KVM_ASYNC_PF
  35         select USER_RETURN_NOTIFIER
  36         select KVM_MMIO
  37         select TASKSTATS
  38         select TASK_DELAY_ACCT
  39         select PERF_EVENTS
  40         select HAVE_KVM_MSI
  41         select HAVE_KVM_CPU_RELAX_INTERCEPT
  42         select KVM_VFIO
  43         select SRCU
  44         ---help---
  45           Support hosting fully virtualized guest machines using hardware
  46           virtualization extensions.  You will need a fairly recent
  47           processor equipped with virtualization extensions. You will also
  48           need to select one or more of the processor modules below.
  49
  50           This module provides access to the hardware capabilities through
  51           a character device node named /dev/kvm.
  52
  53           To compile this as a module, choose M here: the module
  54           will be called kvm.
  55
  56           If unsure, say N.
  57
  58 config KVM_INTEL
  59         tristate "KVM for Intel processors support"
  60         depends on KVM
  61         # for perf_guest_get_msrs():
  62         depends on CPU_SUP_INTEL
  63         ---help---
  64           Provides support for KVM on Intel processors equipped with the VT
  65           extensions.
  66
  67           To compile this as a module, choose M here: the module
  68           will be called kvm-intel.
  69
  70 config KVM_AMD
  71         tristate "KVM for AMD processors support"
  72         depends on KVM
  73         ---help---
  74           Provides support for KVM on AMD processors equipped with the AMD-V
  75           (SVM) extensions.
  76
  77           To compile this as a module, choose M here: the module
  78           will be called kvm-amd.
  79
  80 config KVM_MMU_AUDIT
  81         bool "Audit KVM MMU"
  82         depends on KVM && TRACEPOINTS
  83         ---help---
  84          This option adds a R/W kVM module parameter 'mmu_audit', which allows
  85          auditing of KVM MMU events at runtime.
  86
  87 config KVM_DEVICE_ASSIGNMENT
  88         bool "KVM legacy PCI device assignment support"
  89         depends on KVM && PCI && IOMMU_API
  90         default y
  91         ---help---
  92           Provide support for legacy PCI device assignment through KVM.  The
  93           kernel now also supports a full featured userspace device driver
  94           framework through VFIO, which supersedes much of this support.
  95
  96           If unsure, say Y.
  97
  98 # OK, it's a little counter-intuitive to do this, but it puts it neatly under
  99 # the virtualization menu.
 100 source drivers/vhost/Kconfig
 101 source drivers/lguest/Kconfig
 102
 103 endif # VIRTUALIZATION