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Hollis Blanchardbbf45ba2008-04-16 23:28:09 -05001#
2# KVM configuration
3#
4
Avi Kivity0ba12d12009-05-21 16:45:19 +03005source "virt/kvm/Kconfig"
Avi Kivity5d9b8e32009-01-04 18:04:18 +02006
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -05007menuconfig 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
Hollis Blanchard74ef7402008-11-07 13:15:13 -060020 bool
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -050021 select PREEMPT_NOTIFIERS
22 select ANON_INODES
Alexander Graf0e673fb2012-10-09 00:06:20 +020023 select HAVE_KVM_EVENTFD
Hollis Blanchard74ef7402008-11-07 13:15:13 -060024
Alexander Grafc14dea02010-04-16 00:11:41 +020025config KVM_BOOK3S_HANDLER
26 bool
27
Alexander Graf4f841392010-04-16 00:11:58 +020028config KVM_BOOK3S_32_HANDLER
29 bool
30 select KVM_BOOK3S_HANDLER
Paul Mackerrasde56a942011-06-29 00:21:34 +000031 select KVM_MMIO
Alexander Graf4f841392010-04-16 00:11:58 +020032
Alexander Grafc4f9c772009-10-30 05:47:24 +000033config KVM_BOOK3S_64_HANDLER
34 bool
Alexander Grafc14dea02010-04-16 00:11:41 +020035 select KVM_BOOK3S_HANDLER
Alexander Grafc4f9c772009-10-30 05:47:24 +000036
Paul Mackerrasde56a942011-06-29 00:21:34 +000037config KVM_BOOK3S_PR
38 bool
39 select KVM_MMIO
Alexander Graf9b0cb3c2012-08-10 13:23:55 +020040 select MMU_NOTIFIER
Paul Mackerrasde56a942011-06-29 00:21:34 +000041
Alexander Graf4f841392010-04-16 00:11:58 +020042config KVM_BOOK3S_32
43 tristate "KVM support for PowerPC book3s_32 processors"
44 depends on EXPERIMENTAL && PPC_BOOK3S_32 && !SMP && !PTE_64BIT
45 select KVM
46 select KVM_BOOK3S_32_HANDLER
Paul Mackerrasde56a942011-06-29 00:21:34 +000047 select KVM_BOOK3S_PR
Alexander Graf4f841392010-04-16 00:11:58 +020048 ---help---
49 Support running unmodified book3s_32 guest kernels
50 in virtual machines on book3s_32 host processors.
51
52 This module provides access to the hardware capabilities through
53 a character device node named /dev/kvm.
54
55 If unsure, say N.
56
Alexander Grafc4f9c772009-10-30 05:47:24 +000057config KVM_BOOK3S_64
58 tristate "KVM support for PowerPC book3s_64 processors"
Alexander Graf00c3a372010-04-16 00:11:42 +020059 depends on EXPERIMENTAL && PPC_BOOK3S_64
Alexander Grafc4f9c772009-10-30 05:47:24 +000060 select KVM_BOOK3S_64_HANDLER
Paul Mackerrasde56a942011-06-29 00:21:34 +000061 select KVM
Alexander Grafc4f9c772009-10-30 05:47:24 +000062 ---help---
63 Support running unmodified book3s_64 and book3s_32 guest kernels
64 in virtual machines on book3s_64 host processors.
65
66 This module provides access to the hardware capabilities through
67 a character device node named /dev/kvm.
68
69 If unsure, say N.
70
Paul Mackerrasde56a942011-06-29 00:21:34 +000071config KVM_BOOK3S_64_HV
Paul Mackerras9e368f22011-06-29 00:40:08 +000072 bool "KVM support for POWER7 and PPC970 using hypervisor mode in host"
Paul Mackerrasde56a942011-06-29 00:21:34 +000073 depends on KVM_BOOK3S_64
Paul Mackerras342d3db2011-12-12 12:38:05 +000074 select MMU_NOTIFIER
Paul Mackerrasde56a942011-06-29 00:21:34 +000075 ---help---
76 Support running unmodified book3s_64 guest kernels in
Paul Mackerras9e368f22011-06-29 00:40:08 +000077 virtual machines on POWER7 and PPC970 processors that have
78 hypervisor mode available to the host.
Paul Mackerrasde56a942011-06-29 00:21:34 +000079
80 If you say Y here, KVM will use the hardware virtualization
81 facilities of POWER7 (and later) processors, meaning that
82 guest operating systems will run at full hardware speed
83 using supervisor and user modes. However, this also means
84 that KVM is not usable under PowerVM (pHyp), is only usable
Paul Mackerras9e368f22011-06-29 00:40:08 +000085 on POWER7 (or later) processors and PPC970-family processors,
86 and cannot emulate a different processor from the host processor.
Paul Mackerrasde56a942011-06-29 00:21:34 +000087
88 If unsure, say N.
89
90config KVM_BOOK3S_64_PR
91 def_bool y
92 depends on KVM_BOOK3S_64 && !KVM_BOOK3S_64_HV
93 select KVM_BOOK3S_PR
94
Scott Woodd30f6e42011-12-20 15:34:43 +000095config KVM_BOOKE_HV
96 bool
97
Hollis Blanchard74ef7402008-11-07 13:15:13 -060098config KVM_440
99 bool "KVM support for PowerPC 440 processors"
100 depends on EXPERIMENTAL && 44x
101 select KVM
Paul Mackerrasde56a942011-06-29 00:21:34 +0000102 select KVM_MMIO
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -0500103 ---help---
Hollis Blanchard74ef7402008-11-07 13:15:13 -0600104 Support running unmodified 440 guest kernels in virtual machines on
105 440 host processors.
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -0500106
107 This module provides access to the hardware capabilities through
108 a character device node named /dev/kvm.
109
110 If unsure, say N.
111
Hollis Blanchard73e75b42008-12-02 15:51:57 -0600112config KVM_EXIT_TIMING
113 bool "Detailed exit timing"
Alexander Grafbf7ca4b2012-02-15 23:40:00 +0000114 depends on KVM_440 || KVM_E500V2 || KVM_E500MC
Hollis Blanchard73e75b42008-12-02 15:51:57 -0600115 ---help---
116 Calculate elapsed time for every exit/enter cycle. A per-vcpu
117 report is available in debugfs kvm/vm#_vcpu#_timing.
118 The overhead is relatively small, however it is not recommended for
119 production environments.
120
121 If unsure, say N.
122
Alexander Grafbf7ca4b2012-02-15 23:40:00 +0000123config KVM_E500V2
124 bool "KVM support for PowerPC E500v2 processors"
Alexander Grafb2e19b22012-02-15 23:41:20 +0000125 depends on EXPERIMENTAL && E500 && !PPC_E500MC
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600126 select KVM
Paul Mackerrasde56a942011-06-29 00:21:34 +0000127 select KVM_MMIO
Alexander Graf862d31f2012-07-31 00:19:50 +0200128 select MMU_NOTIFIER
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600129 ---help---
130 Support running unmodified E500 guest kernels in virtual machines on
Alexander Grafbf7ca4b2012-02-15 23:40:00 +0000131 E500v2 host processors.
Hollis Blanchardbc8080c2009-01-03 16:23:10 -0600132
133 This module provides access to the hardware capabilities through
134 a character device node named /dev/kvm.
135
136 If unsure, say N.
137
Scott Wood73196cd32011-12-20 15:34:47 +0000138config KVM_E500MC
139 bool "KVM support for PowerPC E500MC/E5500 processors"
140 depends on EXPERIMENTAL && PPC_E500MC
141 select KVM
142 select KVM_MMIO
143 select KVM_BOOKE_HV
Alexander Graf862d31f2012-07-31 00:19:50 +0200144 select MMU_NOTIFIER
Scott Wood73196cd32011-12-20 15:34:47 +0000145 ---help---
146 Support running unmodified E500MC/E5500 (32-bit) guest kernels in
147 virtual machines on E500MC/E5500 host processors.
148
149 This module provides access to the hardware capabilities through
150 a character device node named /dev/kvm.
151
152 If unsure, say N.
153
Michael S. Tsirkin3a4d5c92010-01-14 06:17:27 +0000154source drivers/vhost/Kconfig
Hollis Blanchardbbf45ba2008-04-16 23:28:09 -0500155
156endif # VIRTUALIZATION