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_440 94 bool "KVM support for PowerPC 440 processors" 95 depends on EXPERIMENTAL && 44x 96 select KVM 97 select KVM_MMIO 98 ---help--- 99 Support running unmodified 440 guest kernels in virtual machines on 100 440 host processors. 101 102 This module provides access to the hardware capabilities through 103 a character device node named /dev/kvm. 104 105 If unsure, say N. 106 107config KVM_EXIT_TIMING 108 bool "Detailed exit timing" 109 depends on KVM_440 || KVM_E500 110 ---help--- 111 Calculate elapsed time for every exit/enter cycle. A per-vcpu 112 report is available in debugfs kvm/vm#_vcpu#_timing. 113 The overhead is relatively small, however it is not recommended for 114 production environments. 115 116 If unsure, say N. 117 118config KVM_E500 119 bool "KVM support for PowerPC E500 processors" 120 depends on EXPERIMENTAL && E500 121 select KVM 122 select KVM_MMIO 123 ---help--- 124 Support running unmodified E500 guest kernels in virtual machines on 125 E500 host processors. 126 127 This module provides access to the hardware capabilities through 128 a character device node named /dev/kvm. 129 130 If unsure, say N. 131 132source drivers/vhost/Kconfig 133 134endif # VIRTUALIZATION 135