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Linux/arch/arm/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 "Kernel-based Virtual Machine (KVM) support"
 21         select PREEMPT_NOTIFIERS
 22         select ANON_INODES
 23         select HAVE_KVM_CPU_RELAX_INTERCEPT
 24         select HAVE_KVM_ARCH_TLB_FLUSH_ALL
 25         select KVM_MMIO
 26         select KVM_ARM_HOST
 27         select KVM_GENERIC_DIRTYLOG_READ_PROTECT
 28         select SRCU
 29         depends on ARM_VIRT_EXT && ARM_LPAE
 30         ---help---
 31           Support hosting virtualized guest machines. You will also
 32           need to select one or more of the processor modules below.
 33 
 34           This module provides access to the hardware capabilities through
 35           a character device node named /dev/kvm.
 36 
 37           If unsure, say N.
 38 
 39 config KVM_ARM_HOST
 40         bool "KVM host support for ARM cpus."
 41         depends on KVM
 42         depends on MMU
 43         select  MMU_NOTIFIER
 44         ---help---
 45           Provides host support for ARM processors.
 46 
 47 config KVM_ARM_MAX_VCPUS
 48         int "Number maximum supported virtual CPUs per VM"
 49         depends on KVM_ARM_HOST
 50         default 4
 51         help
 52           Static number of max supported virtual CPUs per VM.
 53 
 54           If you choose a high number, the vcpu structures will be quite
 55           large, so only choose a reasonable number that you expect to
 56           actually use.
 57 
 58 config KVM_ARM_VGIC
 59         bool "KVM support for Virtual GIC"
 60         depends on KVM_ARM_HOST && OF
 61         select HAVE_KVM_IRQCHIP
 62         default y
 63         ---help---
 64           Adds support for a hardware assisted, in-kernel GIC emulation.
 65 
 66 config KVM_ARM_TIMER
 67         bool "KVM support for Architected Timers"
 68         depends on KVM_ARM_VGIC && ARM_ARCH_TIMER
 69         select HAVE_KVM_IRQCHIP
 70         default y
 71         ---help---
 72           Adds support for the Architected Timers in virtual machines
 73 
 74 endif # VIRTUALIZATION

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