1#
 2# KVM configuration
 3#
 4
 5source "virt/kvm/Kconfig"
 6
 7menuconfig VIRTUALIZATION
 8	bool "Virtualization"
 9	---help---
10	  Say Y here to get to see options for using your Linux host to run
11	  other operating systems inside virtual machines (guests).
12	  This option alone does not add any kernel code.
13
14	  If you say N, all options in this submenu will be skipped and
15	  disabled.
16
17if VIRTUALIZATION
18
19config KVM
20	bool "Kernel-based Virtual Machine (KVM) support"
21	select PREEMPT_NOTIFIERS
22	select ANON_INODES
23	select HAVE_KVM_CPU_RELAX_INTERCEPT
24	select KVM_MMIO
25	select KVM_ARM_HOST
26	depends on ARM_VIRT_EXT && ARM_LPAE && !CPU_BIG_ENDIAN
27	---help---
28	  Support hosting virtualized guest machines. You will also
29	  need to select one or more of the processor modules below.
30
31	  This module provides access to the hardware capabilities through
32	  a character device node named /dev/kvm.
33
34	  If unsure, say N.
35
36config KVM_ARM_HOST
37	bool "KVM host support for ARM cpus."
38	depends on KVM
39	depends on MMU
40	select	MMU_NOTIFIER
41	---help---
42	  Provides host support for ARM processors.
43
44config KVM_ARM_MAX_VCPUS
45	int "Number maximum supported virtual CPUs per VM"
46	depends on KVM_ARM_HOST
47	default 4
48	help
49	  Static number of max supported virtual CPUs per VM.
50
51	  If you choose a high number, the vcpu structures will be quite
52	  large, so only choose a reasonable number that you expect to
53	  actually use.
54
55config KVM_ARM_VGIC
56	bool "KVM support for Virtual GIC"
57	depends on KVM_ARM_HOST && OF
58	select HAVE_KVM_IRQCHIP
59	default y
60	---help---
61	  Adds support for a hardware assisted, in-kernel GIC emulation.
62
63config KVM_ARM_TIMER
64	bool "KVM support for Architected Timers"
65	depends on KVM_ARM_VGIC && ARM_ARCH_TIMER
66	select HAVE_KVM_IRQCHIP
67	default y
68	---help---
69	  Adds support for the Architected Timers in virtual machines
70
71endif # VIRTUALIZATION