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         select HAVE_KVM_EVENTFD
  24
  25 config KVM_BOOK3S_HANDLER
  26         bool
  27
  28 config KVM_BOOK3S_32_HANDLER
  29         bool
  30         select KVM_BOOK3S_HANDLER
  31         select KVM_MMIO
  32
  33 config KVM_BOOK3S_64_HANDLER
  34         bool
  35         select KVM_BOOK3S_HANDLER
  36
  37 config KVM_BOOK3S_PR
  38         bool
  39         select KVM_MMIO
  40         select MMU_NOTIFIER
  41
  42 config KVM_BOOK3S_32
  43         tristate "KVM support for PowerPC book3s_32 processors"
  44         depends on EXPERIMENTAL && PPC_BOOK3S_32 && !SMP && !PTE_64BIT
  45         select KVM
  46         select KVM_BOOK3S_32_HANDLER
  47         select KVM_BOOK3S_PR
  48         ---help---
  49           Support running unmodified book3s_32 guest kernels
  50           in virtual machines on book3s_32 host processors.
  51
  52           This module provides access to the hardware capabilities through
  53           a character device node named /dev/kvm.
  54
  55           If unsure, say N.
  56
  57 config KVM_BOOK3S_64
  58         tristate "KVM support for PowerPC book3s_64 processors"
  59         depends on EXPERIMENTAL && PPC_BOOK3S_64
  60         select KVM_BOOK3S_64_HANDLER
  61         select KVM
  62         ---help---
  63           Support running unmodified book3s_64 and book3s_32 guest kernels
  64           in virtual machines on book3s_64 host processors.
  65
  66           This module provides access to the hardware capabilities through
  67           a character device node named /dev/kvm.
  68
  69           If unsure, say N.
  70
  71 config KVM_BOOK3S_64_HV
  72         bool "KVM support for POWER7 and PPC970 using hypervisor mode in host"
  73         depends on KVM_BOOK3S_64
  74         select MMU_NOTIFIER
  75         ---help---
  76           Support running unmodified book3s_64 guest kernels in
  77           virtual machines on POWER7 and PPC970 processors that have
  78           hypervisor mode available to the host.
  79
  80           If you say Y here, KVM will use the hardware virtualization
  81           facilities of POWER7 (and later) processors, meaning that
  82           guest operating systems will run at full hardware speed
  83           using supervisor and user modes.  However, this also means
  84           that KVM is not usable under PowerVM (pHyp), is only usable
  85           on POWER7 (or later) processors and PPC970-family processors,
  86           and cannot emulate a different processor from the host processor.
  87
  88           If unsure, say N.
  89
  90 config KVM_BOOK3S_64_PR
  91         def_bool y
  92         depends on KVM_BOOK3S_64 && !KVM_BOOK3S_64_HV
  93         select KVM_BOOK3S_PR
  94
  95 config KVM_BOOKE_HV
  96         bool
  97
  98 config KVM_440
  99         bool "KVM support for PowerPC 440 processors"
 100         depends on EXPERIMENTAL && 44x
 101         select KVM
 102         select KVM_MMIO
 103         ---help---
 104           Support running unmodified 440 guest kernels in virtual machines on
 105           440 host processors.
 106
 107           This module provides access to the hardware capabilities through
 108           a character device node named /dev/kvm.
 109
 110           If unsure, say N.
 111
 112 config KVM_EXIT_TIMING
 113         bool "Detailed exit timing"
 114         depends on KVM_440 || KVM_E500V2 || KVM_E500MC
 115         ---help---
 116           Calculate elapsed time for every exit/enter cycle. A per-vcpu
 117           report is available in debugfs kvm/vm#_vcpu#_timing.
 118           The overhead is relatively small, however it is not recommended for
 119           production environments.
 120
 121           If unsure, say N.
 122
 123 config KVM_E500V2
 124         bool "KVM support for PowerPC E500v2 processors"
 125         depends on EXPERIMENTAL && E500 && !PPC_E500MC
 126         select KVM
 127         select KVM_MMIO
 128         select MMU_NOTIFIER
 129         ---help---
 130           Support running unmodified E500 guest kernels in virtual machines on
 131           E500v2 host processors.
 132
 133           This module provides access to the hardware capabilities through
 134           a character device node named /dev/kvm.
 135
 136           If unsure, say N.
 137
 138 config KVM_E500MC
 139         bool "KVM support for PowerPC E500MC/E5500 processors"
 140         depends on EXPERIMENTAL && PPC_E500MC
 141         select KVM
 142         select KVM_MMIO
 143         select KVM_BOOKE_HV
 144         select MMU_NOTIFIER
 145         ---help---
 146           Support running unmodified E500MC/E5500 (32-bit) guest kernels in
 147           virtual machines on E500MC/E5500 host processors.
 148
 149           This module provides access to the hardware capabilities through
 150           a character device node named /dev/kvm.
 151
 152           If unsure, say N.
 153
 154 source drivers/vhost/Kconfig
 155
 156 endif # VIRTUALIZATION