|  | # | 
|  | # KVM configuration | 
|  | # | 
|  |  | 
|  | config HAVE_KVM_IRQCHIP | 
|  | bool | 
|  |  | 
|  | menuconfig VIRTUALIZATION | 
|  | bool "Virtualization" | 
|  | ---help--- | 
|  | Say Y here to get to see options for using your Linux host to run | 
|  | other operating systems inside virtual machines (guests). | 
|  | This option alone does not add any kernel code. | 
|  |  | 
|  | If you say N, all options in this submenu will be skipped and | 
|  | disabled. | 
|  |  | 
|  | if VIRTUALIZATION | 
|  |  | 
|  | config KVM | 
|  | bool | 
|  | select PREEMPT_NOTIFIERS | 
|  | select ANON_INODES | 
|  |  | 
|  | config KVM_440 | 
|  | bool "KVM support for PowerPC 440 processors" | 
|  | depends on EXPERIMENTAL && 44x | 
|  | select KVM | 
|  | ---help--- | 
|  | Support running unmodified 440 guest kernels in virtual machines on | 
|  | 440 host processors. | 
|  |  | 
|  | This module provides access to the hardware capabilities through | 
|  | a character device node named /dev/kvm. | 
|  |  | 
|  | If unsure, say N. | 
|  |  | 
|  | config KVM_EXIT_TIMING | 
|  | bool "Detailed exit timing" | 
|  | depends on KVM | 
|  | ---help--- | 
|  | Calculate elapsed time for every exit/enter cycle. A per-vcpu | 
|  | report is available in debugfs kvm/vm#_vcpu#_timing. | 
|  | The overhead is relatively small, however it is not recommended for | 
|  | production environments. | 
|  |  | 
|  | If unsure, say N. | 
|  |  | 
|  | config KVM_E500 | 
|  | bool "KVM support for PowerPC E500 processors" | 
|  | depends on EXPERIMENTAL && E500 | 
|  | select KVM | 
|  | ---help--- | 
|  | Support running unmodified E500 guest kernels in virtual machines on | 
|  | E500 host processors. | 
|  |  | 
|  | This module provides access to the hardware capabilities through | 
|  | a character device node named /dev/kvm. | 
|  |  | 
|  | If unsure, say N. | 
|  |  | 
|  | config KVM_TRACE | 
|  | bool "KVM trace support" | 
|  | depends on KVM && MARKERS && SYSFS | 
|  | select RELAY | 
|  | select DEBUG_FS | 
|  | default n | 
|  | ---help--- | 
|  | This option allows reading a trace of kvm-related events through | 
|  | relayfs.  Note the ABI is not considered stable and will be | 
|  | modified in future updates. | 
|  |  | 
|  | source drivers/virtio/Kconfig | 
|  |  | 
|  | endif # VIRTUALIZATION |