1# SPDX-License-Identifier: GPL-2.0
2#
3# KVM configuration
4#
5
6source "virt/lib/Kconfig"
7source "virt/kvm/Kconfig"
8
9menuconfig VIRTUALIZATION
10	bool "Virtualization"
11	help
12	  Say Y here to get to see options for using your Linux host to run
13	  other operating systems inside virtual machines (guests).
14	  This option alone does not add any kernel code.
15
16	  If you say N, all options in this submenu will be skipped and
17	  disabled.
18
19if VIRTUALIZATION
20
21menuconfig KVM
22	bool "Kernel-based Virtual Machine (KVM) support"
23	depends on HAVE_KVM
24	select MMU_NOTIFIER
25	select PREEMPT_NOTIFIERS
26	select HAVE_KVM_CPU_RELAX_INTERCEPT
27	select HAVE_KVM_ARCH_TLB_FLUSH_ALL
28	select KVM_MMIO
29	select KVM_GENERIC_DIRTYLOG_READ_PROTECT
30	select KVM_XFER_TO_GUEST_WORK
31	select SRCU
32	select KVM_VFIO
33	select HAVE_KVM_EVENTFD
34	select HAVE_KVM_IRQFD
35	select HAVE_KVM_MSI
36	select HAVE_KVM_IRQCHIP
37	select HAVE_KVM_IRQ_ROUTING
38	select IRQ_BYPASS_MANAGER
39	select HAVE_KVM_IRQ_BYPASS
40	select HAVE_KVM_VCPU_RUN_PID_CHANGE
41	select SCHED_INFO
42	select GUEST_PERF_EVENTS if PERF_EVENTS
43	select INTERVAL_TREE
44	help
45	  Support hosting virtualized guest machines.
46
47	  If unsure, say N.
48
49config NVHE_EL2_DEBUG
50	bool "Debug mode for non-VHE EL2 object"
51	depends on KVM
52	help
53	  Say Y here to enable the debug mode for the non-VHE KVM EL2 object.
54	  Failure reports will BUG() in the hypervisor. This is intended for
55	  local EL2 hypervisor development.
56
57	  If unsure, say N.
58
59config PROTECTED_NVHE_STACKTRACE
60	bool "Protected KVM hypervisor stacktraces"
61	depends on NVHE_EL2_DEBUG
62	default n
63	help
64	  Say Y here to enable pKVM hypervisor stacktraces on hyp_panic()
65
66	  If using protected nVHE mode, but cannot afford the associated
67	  memory cost (less than 0.75 page per CPU) of pKVM stacktraces,
68	  say N.
69
70	  If unsure, or not using protected nVHE (pKVM), say N.
71
72endif # VIRTUALIZATION
73