1# SPDX-License-Identifier: GPL-2.0 2# 3# KVM configuration 4# 5 6source "virt/kvm/Kconfig" 7 8menuconfig VIRTUALIZATION 9 bool "Virtualization" 10 help 11 Say Y here to get to see options for using your Linux host to run 12 other operating systems inside virtual machines (guests). 13 This option alone does not add any kernel code. 14 15 If you say N, all options in this submenu will be skipped and 16 disabled. 17 18if VIRTUALIZATION 19 20menuconfig KVM 21 bool "Kernel-based Virtual Machine (KVM) support" 22 depends on HAVE_KVM 23 select KVM_COMMON 24 select KVM_GENERIC_HARDWARE_ENABLING 25 select KVM_GENERIC_MMU_NOTIFIER 26 select HAVE_KVM_CPU_RELAX_INTERCEPT 27 select KVM_MMIO 28 select KVM_GENERIC_DIRTYLOG_READ_PROTECT 29 select KVM_XFER_TO_GUEST_WORK 30 select KVM_VFIO 31 select HAVE_KVM_DIRTY_RING_ACQ_REL 32 select NEED_KVM_DIRTY_RING_WITH_BITMAP 33 select HAVE_KVM_MSI 34 select HAVE_KVM_IRQCHIP 35 select HAVE_KVM_IRQ_ROUTING 36 select IRQ_BYPASS_MANAGER 37 select HAVE_KVM_IRQ_BYPASS 38 select HAVE_KVM_VCPU_RUN_PID_CHANGE 39 select SCHED_INFO 40 select GUEST_PERF_EVENTS if PERF_EVENTS 41 select XARRAY_MULTI 42 help 43 Support hosting virtualized guest machines. 44 45 If unsure, say N. 46 47config NVHE_EL2_DEBUG 48 bool "Debug mode for non-VHE EL2 object" 49 depends on KVM 50 help 51 Say Y here to enable the debug mode for the non-VHE KVM EL2 object. 52 Failure reports will BUG() in the hypervisor. This is intended for 53 local EL2 hypervisor development. 54 55 If unsure, say N. 56 57config PROTECTED_NVHE_STACKTRACE 58 bool "Protected KVM hypervisor stacktraces" 59 depends on NVHE_EL2_DEBUG 60 default n 61 help 62 Say Y here to enable pKVM hypervisor stacktraces on hyp_panic() 63 64 If using protected nVHE mode, but cannot afford the associated 65 memory cost (less than 0.75 page per CPU) of pKVM stacktraces, 66 say N. 67 68 If unsure, or not using protected nVHE (pKVM), say N. 69 70endif # VIRTUALIZATION 71