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 21 select PREEMPT_NOTIFIERS 22 select ANON_INODES 23 24config KVM_BOOK3S_HANDLER 25 bool 26 27config KVM_BOOK3S_32_HANDLER 28 bool 29 select KVM_BOOK3S_HANDLER 30 select KVM_MMIO 31 32config KVM_BOOK3S_64_HANDLER 33 bool 34 select KVM_BOOK3S_HANDLER 35 36config KVM_BOOK3S_PR 37 bool 38 select KVM_MMIO 39 40config 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 45 select KVM_BOOK3S_PR 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 55config KVM_BOOK3S_64 56 tristate "KVM support for PowerPC book3s_64 processors" 57 depends on EXPERIMENTAL && PPC_BOOK3S_64 58 select KVM_BOOK3S_64_HANDLER 59 select KVM 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 69config KVM_BOOK3S_64_HV 70 bool "KVM support for POWER7 and PPC970 using hypervisor mode in host" 71 depends on KVM_BOOK3S_64 72 select MMU_NOTIFIER 73 ---help--- 74 Support running unmodified book3s_64 guest kernels in 75 virtual machines on POWER7 and PPC970 processors that have 76 hypervisor mode available to the host. 77 78 If you say Y here, KVM will use the hardware virtualization 79 facilities of POWER7 (and later) processors, meaning that 80 guest operating systems will run at full hardware speed 81 using supervisor and user modes. However, this also means 82 that KVM is not usable under PowerVM (pHyp), is only usable 83 on POWER7 (or later) processors and PPC970-family processors, 84 and cannot emulate a different processor from the host processor. 85 86 If unsure, say N. 87 88config KVM_BOOK3S_64_PR 89 def_bool y 90 depends on KVM_BOOK3S_64 && !KVM_BOOK3S_64_HV 91 select KVM_BOOK3S_PR 92 93config KVM_BOOKE_HV 94 bool 95 96config KVM_440 97 bool "KVM support for PowerPC 440 processors" 98 depends on EXPERIMENTAL && 44x 99 select KVM 100 select KVM_MMIO 101 ---help--- 102 Support running unmodified 440 guest kernels in virtual machines on 103 440 host processors. 104 105 This module provides access to the hardware capabilities through 106 a character device node named /dev/kvm. 107 108 If unsure, say N. 109 110config KVM_EXIT_TIMING 111 bool "Detailed exit timing" 112 depends on KVM_440 || KVM_E500V2 || KVM_E500MC 113 ---help--- 114 Calculate elapsed time for every exit/enter cycle. A per-vcpu 115 report is available in debugfs kvm/vm#_vcpu#_timing. 116 The overhead is relatively small, however it is not recommended for 117 production environments. 118 119 If unsure, say N. 120 121config KVM_E500V2 122 bool "KVM support for PowerPC E500v2 processors" 123 depends on EXPERIMENTAL && E500 && !PPC_E500MC 124 select KVM 125 select KVM_MMIO 126 ---help--- 127 Support running unmodified E500 guest kernels in virtual machines on 128 E500v2 host processors. 129 130 This module provides access to the hardware capabilities through 131 a character device node named /dev/kvm. 132 133 If unsure, say N. 134 135config KVM_E500MC 136 bool "KVM support for PowerPC E500MC/E5500 processors" 137 depends on EXPERIMENTAL && PPC_E500MC 138 select KVM 139 select KVM_MMIO 140 select KVM_BOOKE_HV 141 ---help--- 142 Support running unmodified E500MC/E5500 (32-bit) guest kernels in 143 virtual machines on E500MC/E5500 host processors. 144 145 This module provides access to the hardware capabilities through 146 a character device node named /dev/kvm. 147 148 If unsure, say N. 149 150source drivers/vhost/Kconfig 151 152endif # VIRTUALIZATION 153