Kconfig

  1# SPDX-License-Identifier: GPL-2.0
  2# KVM common configuration items and defaults
  3
  4config KVM_COMMON
  5       bool
  6       select EVENTFD
  7       select INTERVAL_TREE
  8       select PREEMPT_NOTIFIERS
  9
 10config HAVE_KVM_PFNCACHE
 11       bool
 12
 13config HAVE_KVM_IRQCHIP
 14       bool
 15
 16config HAVE_KVM_IRQ_ROUTING
 17       bool
 18
 19config 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.
 25config 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.
 32config 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.
 38config NEED_KVM_DIRTY_RING_WITH_BITMAP
 39	bool
 40	depends on HAVE_KVM_DIRTY_RING
 41
 42config KVM_MMIO
 43       bool
 44
 45config KVM_ASYNC_PF
 46       bool
 47
 48# Toggle to switch between direct notification and batch job
 49config KVM_ASYNC_PF_SYNC
 50       bool
 51
 52config HAVE_KVM_MSI
 53       bool
 54
 55config HAVE_KVM_READONLY_MEM
 56       bool
 57
 58config HAVE_KVM_CPU_RELAX_INTERCEPT
 59       bool
 60
 61config KVM_VFIO
 62       bool
 63
 64config HAVE_KVM_INVALID_WAKEUPS
 65       bool
 66
 67config KVM_GENERIC_DIRTYLOG_READ_PROTECT
 68       bool
 69
 70config KVM_GENERIC_PRE_FAULT_MEMORY
 71       bool
 72
 73config KVM_COMPAT
 74       def_bool y
 75       depends on KVM && COMPAT && !(S390 || ARM64 || RISCV)
 76
 77config HAVE_KVM_IRQ_BYPASS
 78       tristate
 79       select IRQ_BYPASS_MANAGER
 80
 81config HAVE_KVM_VCPU_RUN_PID_CHANGE
 82       bool
 83
 84config HAVE_KVM_NO_POLL
 85       bool
 86
 87config VIRT_XFER_TO_GUEST_WORK
 88       bool
 89
 90config HAVE_KVM_PM_NOTIFIER
 91       bool
 92
 93config KVM_GENERIC_HARDWARE_ENABLING
 94       bool
 95
 96config KVM_GENERIC_MMU_NOTIFIER
 97       select MMU_NOTIFIER
 98       bool
 99
100config KVM_ELIDE_TLB_FLUSH_IF_YOUNG
101       depends on KVM_GENERIC_MMU_NOTIFIER
102       bool
103
104config KVM_MMU_LOCKLESS_AGING
105       depends on KVM_GENERIC_MMU_NOTIFIER
106       bool
107
108config KVM_GENERIC_MEMORY_ATTRIBUTES
109       depends on KVM_GENERIC_MMU_NOTIFIER
110       bool
111
112config KVM_GUEST_MEMFD
113       depends on KVM_GENERIC_MMU_NOTIFIER
114       select XARRAY_MULTI
115       bool
116
117config HAVE_KVM_ARCH_GMEM_PREPARE
118       bool
119       depends on KVM_GUEST_MEMFD
120
121config HAVE_KVM_ARCH_GMEM_INVALIDATE
122       bool
123       depends on KVM_GUEST_MEMFD
124
125config HAVE_KVM_ARCH_GMEM_POPULATE
126       bool
127       depends on KVM_GUEST_MEMFD