virt/kvm/Kconfig

   1 # SPDX-License-Identifier: GPL-2.0
   2 # KVM common configuration items and defaults
   3
   4 config KVM_COMMON
   5        bool
   6        select EVENTFD
   7        select INTERVAL_TREE
   8        select PREEMPT_NOTIFIERS
   9
  10 config HAVE_KVM_PFNCACHE
  11        bool
  12
  13 config HAVE_KVM_IRQCHIP
  14        bool
  15
  16 config HAVE_KVM_IRQ_ROUTING
  17        bool
  18
  19 config HAVE_KVM_DIRTY_RING
  20        bool
  21
  22 # Only strongly ordered architectures can select this, as it doesn't
  23 # put any explicit constraint on userspace ordering. They can also
  24 # select the _ACQ_REL version.
  25 config HAVE_KVM_DIRTY_RING_TSO
  26        bool
  27        select HAVE_KVM_DIRTY_RING
  28        depends on X86
  29
  30 # Weakly ordered architectures can only select this, advertising
  31 # to userspace the additional ordering requirements.
  32 config HAVE_KVM_DIRTY_RING_ACQ_REL
  33        bool
  34        select HAVE_KVM_DIRTY_RING
  35
  36 # Allow enabling both the dirty bitmap and dirty ring. Only architectures
  37 # that need to dirty memory outside of a vCPU context should select this.
  38 config NEED_KVM_DIRTY_RING_WITH_BITMAP
  39         bool
  40         depends on HAVE_KVM_DIRTY_RING
  41
  42 config KVM_MMIO
  43        bool
  44
  45 config KVM_ASYNC_PF
  46        bool
  47
  48 # Toggle to switch between direct notification and batch job
  49 config KVM_ASYNC_PF_SYNC
  50        bool
  51
  52 config HAVE_KVM_MSI
  53        bool
  54
  55 config HAVE_KVM_READONLY_MEM
  56        bool
  57
  58 config HAVE_KVM_CPU_RELAX_INTERCEPT
  59        bool
  60
  61 config KVM_VFIO
  62        bool
  63
  64 config HAVE_KVM_INVALID_WAKEUPS
  65        bool
  66
  67 config KVM_GENERIC_DIRTYLOG_READ_PROTECT
  68        bool
  69
  70 config KVM_GENERIC_PRE_FAULT_MEMORY
  71        bool
  72
  73 config KVM_COMPAT
  74        def_bool y
  75        depends on KVM && COMPAT && !(S390 || ARM64 || RISCV)
  76
  77 config HAVE_KVM_IRQ_BYPASS
  78        bool
  79        select IRQ_BYPASS_MANAGER
  80
  81 config HAVE_KVM_VCPU_ASYNC_IOCTL
  82        bool
  83
  84 config HAVE_KVM_VCPU_RUN_PID_CHANGE
  85        bool
  86
  87 config HAVE_KVM_NO_POLL
  88        bool
  89
  90 config KVM_XFER_TO_GUEST_WORK
  91        bool
  92
  93 config HAVE_KVM_PM_NOTIFIER
  94        bool
  95
  96 config KVM_GENERIC_HARDWARE_ENABLING
  97        bool
  98
  99 config KVM_GENERIC_MMU_NOTIFIER
 100        select MMU_NOTIFIER
 101        bool
 102
 103 config KVM_ELIDE_TLB_FLUSH_IF_YOUNG
 104        depends on KVM_GENERIC_MMU_NOTIFIER
 105        bool
 106
 107 config KVM_GENERIC_MEMORY_ATTRIBUTES
 108        depends on KVM_GENERIC_MMU_NOTIFIER
 109        bool
 110
 111 config KVM_PRIVATE_MEM
 112        select XARRAY_MULTI
 113        bool
 114
 115 config KVM_GENERIC_PRIVATE_MEM
 116        select KVM_GENERIC_MEMORY_ATTRIBUTES
 117        select KVM_PRIVATE_MEM
 118        bool
 119
 120 config HAVE_KVM_ARCH_GMEM_PREPARE
 121        bool
 122        depends on KVM_PRIVATE_MEM
 123
 124 config HAVE_KVM_ARCH_GMEM_INVALIDATE
 125        bool
 126        depends on KVM_PRIVATE_MEM