1
2
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
21 select PREEMPT_NOTIFIERS
22 select ANON_INODES
23 select HAVE_KVM_EVENTFD
24
25config KVM_BOOK3S_HANDLER
26 bool
27
28config KVM_BOOK3S_32_HANDLER
29 bool
30 select KVM_BOOK3S_HANDLER
31 select KVM_MMIO
32
33config KVM_BOOK3S_64_HANDLER
34 bool
35 select KVM_BOOK3S_HANDLER
36
37config KVM_BOOK3S_PR
38 bool
39 select KVM_MMIO
40 select MMU_NOTIFIER
41
42config KVM_BOOK3S_32
43 tristate "KVM support for PowerPC book3s_32 processors"
44 depends on PPC_BOOK3S_32 && !SMP && !PTE_64BIT
45 select KVM
46 select KVM_BOOK3S_32_HANDLER
47 select KVM_BOOK3S_PR
48 ---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
57config KVM_BOOK3S_64
58 tristate "KVM support for PowerPC book3s_64 processors"
59 depends on PPC_BOOK3S_64
60 select KVM_BOOK3S_64_HANDLER
61 select KVM
62 ---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
71config KVM_BOOK3S_64_HV
72 bool "KVM support for POWER7 and PPC970 using hypervisor mode in host"
73 depends on KVM_BOOK3S_64
74 select MMU_NOTIFIER
75 ---help---
76 Support running unmodified book3s_64 guest kernels in
77 virtual machines on POWER7 and PPC970 processors that have
78 hypervisor mode available to the host.
79
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
85 on POWER7 (or later) processors and PPC970-family processors,
86 and cannot emulate a different processor from the host processor.
87
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
95config KVM_BOOKE_HV
96 bool
97
98config KVM_440
99 bool "KVM support for PowerPC 440 processors"
100 depends on 44x
101 select KVM
102 select KVM_MMIO
103 ---help---
104 Support running unmodified 440 guest kernels in virtual machines on
105 440 host processors.
106
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
112config KVM_EXIT_TIMING
113 bool "Detailed exit timing"
114 depends on KVM_440 || KVM_E500V2 || KVM_E500MC
115 ---help---
116 Calculate elapsed time for every exit/enter cycle. A per-vcpu
117 report is available in debugfs kvm/vm
118 The overhead is relatively small, however it is not recommended for
119 production environments.
120
121 If unsure, say N.
122
123config KVM_E500V2
124 bool "KVM support for PowerPC E500v2 processors"
125 depends on E500 && !PPC_E500MC
126 select KVM
127 select KVM_MMIO
128 select MMU_NOTIFIER
129 ---help---
130 Support running unmodified E500 guest kernels in virtual machines on
131 E500v2 host processors.
132
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
138config KVM_E500MC
139 bool "KVM support for PowerPC E500MC/E5500/E6500 processors"
140 depends on PPC_E500MC
141 select KVM
142 select KVM_MMIO
143 select KVM_BOOKE_HV
144 select MMU_NOTIFIER
145 ---help---
146 Support running unmodified E500MC/E5500/E6500 guest kernels in
147 virtual machines on E500MC/E5500/E6500 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
154config KVM_MPIC
155 bool "KVM in-kernel MPIC emulation"
156 depends on KVM && E500
157 select HAVE_KVM_IRQCHIP
158 select HAVE_KVM_IRQ_ROUTING
159 select HAVE_KVM_MSI
160 help
161 Enable support for emulating MPIC devices inside the
162 host kernel, rather than relying on userspace to emulate.
163 Currently, support is limited to certain versions of
164 Freescale's MPIC implementation.
165
166config KVM_XICS
167 bool "KVM in-kernel XICS emulation"
168 depends on KVM_BOOK3S_64 && !KVM_MPIC
169 ---help---
170 Include support for the XICS (eXternal Interrupt Controller
171 Specification) interrupt controller architecture used on
172 IBM POWER (pSeries) servers.
173
174source drivers/vhost/Kconfig
175
176endif
177
