Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 1 | # |
| 2 | # KVM configuration |
| 3 | # |
| 4 | |
Avi Kivity | 0ba12d1 | 2009-05-21 16:45:19 +0300 | [diff] [blame] | 5 | source "virt/kvm/Kconfig" |
Avi Kivity | 5d9b8e3 | 2009-01-04 18:04:18 +0200 | [diff] [blame] | 6 | |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 7 | menuconfig 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 | |
| 17 | if VIRTUALIZATION |
| 18 | |
| 19 | config KVM |
Hollis Blanchard | 74ef740 | 2008-11-07 13:15:13 -0600 | [diff] [blame] | 20 | bool |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 21 | select PREEMPT_NOTIFIERS |
| 22 | select ANON_INODES |
Hollis Blanchard | 74ef740 | 2008-11-07 13:15:13 -0600 | [diff] [blame] | 23 | |
Alexander Graf | c14dea0 | 2010-04-16 00:11:41 +0200 | [diff] [blame] | 24 | config KVM_BOOK3S_HANDLER |
| 25 | bool |
| 26 | |
Alexander Graf | 4f84139 | 2010-04-16 00:11:58 +0200 | [diff] [blame] | 27 | config KVM_BOOK3S_32_HANDLER |
| 28 | bool |
| 29 | select KVM_BOOK3S_HANDLER |
Paul Mackerras | de56a94 | 2011-06-29 00:21:34 +0000 | [diff] [blame] | 30 | select KVM_MMIO |
Alexander Graf | 4f84139 | 2010-04-16 00:11:58 +0200 | [diff] [blame] | 31 | |
Alexander Graf | c4f9c77 | 2009-10-30 05:47:24 +0000 | [diff] [blame] | 32 | config KVM_BOOK3S_64_HANDLER |
| 33 | bool |
Alexander Graf | c14dea0 | 2010-04-16 00:11:41 +0200 | [diff] [blame] | 34 | select KVM_BOOK3S_HANDLER |
Alexander Graf | c4f9c77 | 2009-10-30 05:47:24 +0000 | [diff] [blame] | 35 | |
Paul Mackerras | de56a94 | 2011-06-29 00:21:34 +0000 | [diff] [blame] | 36 | config KVM_BOOK3S_PR |
| 37 | bool |
| 38 | select KVM_MMIO |
| 39 | |
Alexander Graf | 4f84139 | 2010-04-16 00:11:58 +0200 | [diff] [blame] | 40 | config KVM_BOOK3S_32 |
| 41 | tristate "KVM support for PowerPC book3s_32 processors" |
| 42 | depends on EXPERIMENTAL && PPC_BOOK3S_32 && !SMP && !PTE_64BIT |
| 43 | select KVM |
| 44 | select KVM_BOOK3S_32_HANDLER |
Paul Mackerras | de56a94 | 2011-06-29 00:21:34 +0000 | [diff] [blame] | 45 | select KVM_BOOK3S_PR |
Alexander Graf | 4f84139 | 2010-04-16 00:11:58 +0200 | [diff] [blame] | 46 | ---help--- |
| 47 | Support running unmodified book3s_32 guest kernels |
| 48 | in virtual machines on book3s_32 host processors. |
| 49 | |
| 50 | This module provides access to the hardware capabilities through |
| 51 | a character device node named /dev/kvm. |
| 52 | |
| 53 | If unsure, say N. |
| 54 | |
Alexander Graf | c4f9c77 | 2009-10-30 05:47:24 +0000 | [diff] [blame] | 55 | config KVM_BOOK3S_64 |
| 56 | tristate "KVM support for PowerPC book3s_64 processors" |
Alexander Graf | 00c3a37 | 2010-04-16 00:11:42 +0200 | [diff] [blame] | 57 | depends on EXPERIMENTAL && PPC_BOOK3S_64 |
Alexander Graf | c4f9c77 | 2009-10-30 05:47:24 +0000 | [diff] [blame] | 58 | select KVM_BOOK3S_64_HANDLER |
Paul Mackerras | de56a94 | 2011-06-29 00:21:34 +0000 | [diff] [blame] | 59 | select KVM |
Alexander Graf | c4f9c77 | 2009-10-30 05:47:24 +0000 | [diff] [blame] | 60 | ---help--- |
| 61 | Support running unmodified book3s_64 and book3s_32 guest kernels |
| 62 | in virtual machines on book3s_64 host processors. |
| 63 | |
| 64 | This module provides access to the hardware capabilities through |
| 65 | a character device node named /dev/kvm. |
| 66 | |
| 67 | If unsure, say N. |
| 68 | |
Paul Mackerras | de56a94 | 2011-06-29 00:21:34 +0000 | [diff] [blame] | 69 | config KVM_BOOK3S_64_HV |
Paul Mackerras | 9e368f2 | 2011-06-29 00:40:08 +0000 | [diff] [blame] | 70 | bool "KVM support for POWER7 and PPC970 using hypervisor mode in host" |
Paul Mackerras | de56a94 | 2011-06-29 00:21:34 +0000 | [diff] [blame] | 71 | depends on KVM_BOOK3S_64 |
| 72 | ---help--- |
| 73 | Support running unmodified book3s_64 guest kernels in |
Paul Mackerras | 9e368f2 | 2011-06-29 00:40:08 +0000 | [diff] [blame] | 74 | virtual machines on POWER7 and PPC970 processors that have |
| 75 | hypervisor mode available to the host. |
Paul Mackerras | de56a94 | 2011-06-29 00:21:34 +0000 | [diff] [blame] | 76 | |
| 77 | If you say Y here, KVM will use the hardware virtualization |
| 78 | facilities of POWER7 (and later) processors, meaning that |
| 79 | guest operating systems will run at full hardware speed |
| 80 | using supervisor and user modes. However, this also means |
| 81 | that KVM is not usable under PowerVM (pHyp), is only usable |
Paul Mackerras | 9e368f2 | 2011-06-29 00:40:08 +0000 | [diff] [blame] | 82 | on POWER7 (or later) processors and PPC970-family processors, |
| 83 | and cannot emulate a different processor from the host processor. |
Paul Mackerras | de56a94 | 2011-06-29 00:21:34 +0000 | [diff] [blame] | 84 | |
| 85 | If unsure, say N. |
| 86 | |
| 87 | config KVM_BOOK3S_64_PR |
| 88 | def_bool y |
| 89 | depends on KVM_BOOK3S_64 && !KVM_BOOK3S_64_HV |
| 90 | select KVM_BOOK3S_PR |
| 91 | |
Hollis Blanchard | 74ef740 | 2008-11-07 13:15:13 -0600 | [diff] [blame] | 92 | config KVM_440 |
| 93 | bool "KVM support for PowerPC 440 processors" |
| 94 | depends on EXPERIMENTAL && 44x |
| 95 | select KVM |
Paul Mackerras | de56a94 | 2011-06-29 00:21:34 +0000 | [diff] [blame] | 96 | select KVM_MMIO |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 97 | ---help--- |
Hollis Blanchard | 74ef740 | 2008-11-07 13:15:13 -0600 | [diff] [blame] | 98 | Support running unmodified 440 guest kernels in virtual machines on |
| 99 | 440 host processors. |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 100 | |
| 101 | This module provides access to the hardware capabilities through |
| 102 | a character device node named /dev/kvm. |
| 103 | |
| 104 | If unsure, say N. |
| 105 | |
Hollis Blanchard | 73e75b4 | 2008-12-02 15:51:57 -0600 | [diff] [blame] | 106 | config KVM_EXIT_TIMING |
| 107 | bool "Detailed exit timing" |
Alexander Graf | e1f829b | 2009-12-20 22:24:06 +0100 | [diff] [blame] | 108 | depends on KVM_440 || KVM_E500 |
Hollis Blanchard | 73e75b4 | 2008-12-02 15:51:57 -0600 | [diff] [blame] | 109 | ---help--- |
| 110 | Calculate elapsed time for every exit/enter cycle. A per-vcpu |
| 111 | report is available in debugfs kvm/vm#_vcpu#_timing. |
| 112 | The overhead is relatively small, however it is not recommended for |
| 113 | production environments. |
| 114 | |
| 115 | If unsure, say N. |
| 116 | |
Hollis Blanchard | bc8080c | 2009-01-03 16:23:10 -0600 | [diff] [blame] | 117 | config KVM_E500 |
| 118 | bool "KVM support for PowerPC E500 processors" |
| 119 | depends on EXPERIMENTAL && E500 |
| 120 | select KVM |
Paul Mackerras | de56a94 | 2011-06-29 00:21:34 +0000 | [diff] [blame] | 121 | select KVM_MMIO |
Hollis Blanchard | bc8080c | 2009-01-03 16:23:10 -0600 | [diff] [blame] | 122 | ---help--- |
| 123 | Support running unmodified E500 guest kernels in virtual machines on |
| 124 | E500 host processors. |
| 125 | |
| 126 | This module provides access to the hardware capabilities through |
| 127 | a character device node named /dev/kvm. |
| 128 | |
| 129 | If unsure, say N. |
| 130 | |
Michael S. Tsirkin | 3a4d5c94e | 2010-01-14 06:17:27 +0000 | [diff] [blame] | 131 | source drivers/vhost/Kconfig |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 132 | |
| 133 | endif # VIRTUALIZATION |