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 ---help--- 73 Support running unmodified book3s_64 guest kernels in 74 virtual machines on POWER7 and PPC970 processors that have 75 hypervisor mode available to the host. 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 82 on POWER7 (or later) processors and PPC970-family processors, 83 and cannot emulate a different processor from the host processor. 84 85 If unsure, say N. 86 87config KVM_BOOK3S_64_PR 88 def_bool y 89 depends on KVM_BOOK3S_64 && !KVM_BOOK3S_64_HV 90 select KVM_BOOK3S_PR 91 92config KVM_440 93 bool "KVM support for PowerPC 440 processors" 94 depends on EXPERIMENTAL && 44x 95 select KVM 96 select KVM_MMIO 97 ---help--- 98 Support running unmodified 440 guest kernels in virtual machines on 99 440 host processors. 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 106config KVM_EXIT_TIMING 107 bool "Detailed exit timing" 108 depends on KVM_440 || KVM_E500 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 117config KVM_E500 118 bool "KVM support for PowerPC E500 processors" 119 depends on EXPERIMENTAL && E500 120 select KVM 121 select KVM_MMIO 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 131source drivers/vhost/Kconfig 132 133endif # VIRTUALIZATION 134