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Linux/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_ASYNC_PF
 36         select USER_RETURN_NOTIFIER
 37         select KVM_MMIO
 38         select TASKSTATS
 39         select TASK_DELAY_ACCT
 40         select PERF_EVENTS
 41         select HAVE_KVM_MSI
 42         select HAVE_KVM_CPU_RELAX_INTERCEPT
 43         select KVM_GENERIC_DIRTYLOG_READ_PROTECT
 44         select KVM_VFIO
 45         select SRCU
 46         ---help---
 47           Support hosting fully virtualized guest machines using hardware
 48           virtualization extensions.  You will need a fairly recent
 49           processor equipped with virtualization extensions. You will also
 50           need to select one or more of the processor modules below.
 51 
 52           This module provides access to the hardware capabilities through
 53           a character device node named /dev/kvm.
 54 
 55           To compile this as a module, choose M here: the module
 56           will be called kvm.
 57 
 58           If unsure, say N.
 59 
 60 config KVM_INTEL
 61         tristate "KVM for Intel processors support"
 62         depends on KVM
 63         # for perf_guest_get_msrs():
 64         depends on CPU_SUP_INTEL
 65         ---help---
 66           Provides support for KVM on Intel processors equipped with the VT
 67           extensions.
 68 
 69           To compile this as a module, choose M here: the module
 70           will be called kvm-intel.
 71 
 72 config KVM_AMD
 73         tristate "KVM for AMD processors support"
 74         depends on KVM
 75         ---help---
 76           Provides support for KVM on AMD processors equipped with the AMD-V
 77           (SVM) extensions.
 78 
 79           To compile this as a module, choose M here: the module
 80           will be called kvm-amd.
 81 
 82 config KVM_MMU_AUDIT
 83         bool "Audit KVM MMU"
 84         depends on KVM && TRACEPOINTS
 85         ---help---
 86          This option adds a R/W kVM module parameter 'mmu_audit', which allows
 87          auditing of KVM MMU events at runtime.
 88 
 89 config KVM_DEVICE_ASSIGNMENT
 90         bool "KVM legacy PCI device assignment support (DEPRECATED)"
 91         depends on KVM && PCI && IOMMU_API
 92         default n
 93         ---help---
 94           Provide support for legacy PCI device assignment through KVM.  The
 95           kernel now also supports a full featured userspace device driver
 96           framework through VFIO, which supersedes this support and provides
 97           better security.
 98 
 99           If unsure, say N.
100 
101 # OK, it's a little counter-intuitive to do this, but it puts it neatly under
102 # the virtualization menu.
103 source drivers/vhost/Kconfig
104 source drivers/lguest/Kconfig
105 
106 endif # VIRTUALIZATION

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