arch/powerpc/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
  21         select PREEMPT_NOTIFIERS
  22         select ANON_INODES
  23
  24 config KVM_BOOK3S_HANDLER
  25         bool
  26
  27 config KVM_BOOK3S_32_HANDLER
  28         bool
  29         select KVM_BOOK3S_HANDLER
  30         select KVM_MMIO
  31
  32 config KVM_BOOK3S_64_HANDLER
  33         bool
  34         select KVM_BOOK3S_HANDLER
  35
  36 config KVM_BOOK3S_PR
  37         bool
  38         select KVM_MMIO
  39
  40 config KVM_BOOK3S_32
  41         tristate "KVM support for PowerPC book3s_32 processors"
  42         depends on EXPERIMENTAL && PPC_BOOK3S_32 && !SMP && !PTE_64BIT
  43         select KVM
  44         select KVM_BOOK3S_32_HANDLER
  45         select KVM_BOOK3S_PR
  46         ---help---
  47           Support running unmodified book3s_32 guest kernels
  48           in virtual machines on book3s_32 host processors.
  49
  50           This module provides access to the hardware capabilities through
  51           a character device node named /dev/kvm.
  52
  53           If unsure, say N.
  54
  55 config KVM_BOOK3S_64
  56         tristate "KVM support for PowerPC book3s_64 processors"
  57         depends on EXPERIMENTAL && PPC_BOOK3S_64
  58         select KVM_BOOK3S_64_HANDLER
  59         select KVM
  60         ---help---
  61           Support running unmodified book3s_64 and book3s_32 guest kernels
  62           in virtual machines on book3s_64 host processors.
  63
  64           This module provides access to the hardware capabilities through
  65           a character device node named /dev/kvm.
  66
  67           If unsure, say N.
  68
  69 config KVM_BOOK3S_64_HV
  70         bool "KVM support for POWER7 and PPC970 using hypervisor mode in host"
  71         depends on KVM_BOOK3S_64
  72         ---help---
  73           Support running unmodified book3s_64 guest kernels in
  74           virtual machines on POWER7 and PPC970 processors that have
  75           hypervisor mode available to the host.
  76
  77           If you say Y here, KVM will use the hardware virtualization
  78           facilities of POWER7 (and later) processors, meaning that
  79           guest operating systems will run at full hardware speed
  80           using supervisor and user modes.  However, this also means
  81           that KVM is not usable under PowerVM (pHyp), is only usable
  82           on POWER7 (or later) processors and PPC970-family processors,
  83           and cannot emulate a different processor from the host processor.
  84
  85           If unsure, say N.
  86
  87 config KVM_BOOK3S_64_PR
  88         def_bool y
  89         depends on KVM_BOOK3S_64 && !KVM_BOOK3S_64_HV
  90         select KVM_BOOK3S_PR
  91
  92 config KVM_440
  93         bool "KVM support for PowerPC 440 processors"
  94         depends on EXPERIMENTAL && 44x
  95         select KVM
  96         select KVM_MMIO
  97         ---help---
  98           Support running unmodified 440 guest kernels in virtual machines on
  99           440 host processors.
 100
 101           This module provides access to the hardware capabilities through
 102           a character device node named /dev/kvm.
 103
 104           If unsure, say N.
 105
 106 config KVM_EXIT_TIMING
 107         bool "Detailed exit timing"
 108         depends on KVM_440 || KVM_E500
 109         ---help---
 110           Calculate elapsed time for every exit/enter cycle. A per-vcpu
 111           report is available in debugfs kvm/vm#_vcpu#_timing.
 112           The overhead is relatively small, however it is not recommended for
 113           production environments.
 114
 115           If unsure, say N.
 116
 117 config KVM_E500
 118         bool "KVM support for PowerPC E500 processors"
 119         depends on EXPERIMENTAL && E500
 120         select KVM
 121         select KVM_MMIO
 122         ---help---
 123           Support running unmodified E500 guest kernels in virtual machines on
 124           E500 host processors.
 125
 126           This module provides access to the hardware capabilities through
 127           a character device node named /dev/kvm.
 128
 129           If unsure, say N.
 130
 131 source drivers/vhost/Kconfig
 132
 133 endif # VIRTUALIZATION