1#
2# KVM configuration
3#
4
5source "virt/kvm/Kconfig"
6
7menuconfig VIRTUALIZATION
8	bool "Virtualization"
9	depends on HAVE_KVM || X86
10	default y
11	---help---
12	  Say Y here to get to see options for using your Linux host to run other
13	  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 disabled.
17
18if VIRTUALIZATION
19
20config KVM
21	tristate "Kernel-based Virtual Machine (KVM) support"
22	depends on HAVE_KVM
23	depends on HIGH_RES_TIMERS
24	# for TASKSTATS/TASK_DELAY_ACCT:
25	depends on NET
26	select PREEMPT_NOTIFIERS
27	select MMU_NOTIFIER
28	select ANON_INODES
29	select HAVE_KVM_IRQCHIP
30	select HAVE_KVM_IRQFD
31	select IRQ_BYPASS_MANAGER
32	select HAVE_KVM_IRQ_BYPASS
33	select HAVE_KVM_IRQ_ROUTING
34	select HAVE_KVM_EVENTFD
35	select KVM_APIC_ARCHITECTURE
36	select KVM_ASYNC_PF
37	select USER_RETURN_NOTIFIER
38	select KVM_MMIO
39	select TASKSTATS
40	select TASK_DELAY_ACCT
41	select PERF_EVENTS
42	select HAVE_KVM_MSI
43	select HAVE_KVM_CPU_RELAX_INTERCEPT
44	select KVM_GENERIC_DIRTYLOG_READ_PROTECT
45	select KVM_VFIO
46	select SRCU
47	---help---
48	  Support hosting fully virtualized guest machines using hardware
49	  virtualization extensions.  You will need a fairly recent
50	  processor equipped with virtualization extensions. You will also
51	  need to select one or more of the processor modules below.
52
53	  This module provides access to the hardware capabilities through
54	  a character device node named /dev/kvm.
55
56	  To compile this as a module, choose M here: the module
57	  will be called kvm.
58
59	  If unsure, say N.
60
61config KVM_INTEL
62	tristate "KVM for Intel processors support"
63	depends on KVM
64	# for perf_guest_get_msrs():
65	depends on CPU_SUP_INTEL
66	---help---
67	  Provides support for KVM on Intel processors equipped with the VT
68	  extensions.
69
70	  To compile this as a module, choose M here: the module
71	  will be called kvm-intel.
72
73config KVM_AMD
74	tristate "KVM for AMD processors support"
75	depends on KVM
76	---help---
77	  Provides support for KVM on AMD processors equipped with the AMD-V
78	  (SVM) extensions.
79
80	  To compile this as a module, choose M here: the module
81	  will be called kvm-amd.
82
83config KVM_MMU_AUDIT
84	bool "Audit KVM MMU"
85	depends on KVM && TRACEPOINTS
86	---help---
87	 This option adds a R/W kVM module parameter 'mmu_audit', which allows
88	 auditing of KVM MMU events at runtime.
89
90config KVM_DEVICE_ASSIGNMENT
91	bool "KVM legacy PCI device assignment support (DEPRECATED)"
92	depends on KVM && PCI && IOMMU_API
93	default n
94	---help---
95	  Provide support for legacy PCI device assignment through KVM.  The
96	  kernel now also supports a full featured userspace device driver
97	  framework through VFIO, which supersedes this support and provides
98	  better security.
99
100	  If unsure, say N.
101
102# OK, it's a little counter-intuitive to do this, but it puts it neatly under
103# the virtualization menu.
104source drivers/vhost/Kconfig
105source drivers/lguest/Kconfig
106
107endif # VIRTUALIZATION
108