0001 # SPDX-License-Identifier: GPL-2.0
0002 #
0003 # KVM configuration
0004 #
0005
0006 source "virt/lib/Kconfig"
0007 source "virt/kvm/Kconfig"
0008
0009 menuconfig VIRTUALIZATION
0010 bool "Virtualization"
0011 help
0012 Say Y here to get to see options for using your Linux host to run
0013 other operating systems inside virtual machines (guests).
0014 This option alone does not add any kernel code.
0015
0016 If you say N, all options in this submenu will be skipped and
0017 disabled.
0018
0019 if VIRTUALIZATION
0020
0021 menuconfig KVM
0022 bool "Kernel-based Virtual Machine (KVM) support"
0023 depends on HAVE_KVM
0024 select MMU_NOTIFIER
0025 select PREEMPT_NOTIFIERS
0026 select HAVE_KVM_CPU_RELAX_INTERCEPT
0027 select HAVE_KVM_ARCH_TLB_FLUSH_ALL
0028 select KVM_MMIO
0029 select KVM_GENERIC_DIRTYLOG_READ_PROTECT
0030 select KVM_XFER_TO_GUEST_WORK
0031 select SRCU
0032 select KVM_VFIO
0033 select HAVE_KVM_EVENTFD
0034 select HAVE_KVM_IRQFD
0035 select HAVE_KVM_MSI
0036 select HAVE_KVM_IRQCHIP
0037 select HAVE_KVM_IRQ_ROUTING
0038 select IRQ_BYPASS_MANAGER
0039 select HAVE_KVM_IRQ_BYPASS
0040 select HAVE_KVM_VCPU_RUN_PID_CHANGE
0041 select SCHED_INFO
0042 select GUEST_PERF_EVENTS if PERF_EVENTS
0043 select INTERVAL_TREE
0044 help
0045 Support hosting virtualized guest machines.
0046
0047 If unsure, say N.
0048
0049 config NVHE_EL2_DEBUG
0050 bool "Debug mode for non-VHE EL2 object"
0051 depends on KVM
0052 help
0053 Say Y here to enable the debug mode for the non-VHE KVM EL2 object.
0054 Failure reports will BUG() in the hypervisor. This is intended for
0055 local EL2 hypervisor development.
0056
0057 If unsure, say N.
0058
0059 config PROTECTED_NVHE_STACKTRACE
0060 bool "Protected KVM hypervisor stacktraces"
0061 depends on NVHE_EL2_DEBUG
0062 default n
0063 help
0064 Say Y here to enable pKVM hypervisor stacktraces on hyp_panic()
0065
0066 If using protected nVHE mode, but cannot afford the associated
0067 memory cost (less than 0.75 page per CPU) of pKVM stacktraces,
0068 say N.
0069
0070 If unsure, or not using protected nVHE (pKVM), say N.
0071
0072 endif # VIRTUALIZATION
