| # |
| # KVM configuration |
| # |
| |
| source "virt/kvm/Kconfig" |
| |
| 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_BOOK3S_HANDLER |
| bool |
| |
| config KVM_BOOK3S_32_HANDLER |
| bool |
| select KVM_BOOK3S_HANDLER |
| select KVM_MMIO |
| |
| config KVM_BOOK3S_64_HANDLER |
| bool |
| select KVM_BOOK3S_HANDLER |
| |
| config KVM_BOOK3S_PR |
| bool |
| select KVM_MMIO |
| |
| config KVM_BOOK3S_32 |
| tristate "KVM support for PowerPC book3s_32 processors" |
| depends on EXPERIMENTAL && PPC_BOOK3S_32 && !SMP && !PTE_64BIT |
| select KVM |
| select KVM_BOOK3S_32_HANDLER |
| select KVM_BOOK3S_PR |
| ---help--- |
| Support running unmodified book3s_32 guest kernels |
| in virtual machines on book3s_32 host processors. |
| |
| This module provides access to the hardware capabilities through |
| a character device node named /dev/kvm. |
| |
| If unsure, say N. |
| |
| config KVM_BOOK3S_64 |
| tristate "KVM support for PowerPC book3s_64 processors" |
| depends on EXPERIMENTAL && PPC_BOOK3S_64 |
| select KVM_BOOK3S_64_HANDLER |
| select KVM |
| ---help--- |
| Support running unmodified book3s_64 and book3s_32 guest kernels |
| in virtual machines on book3s_64 host processors. |
| |
| This module provides access to the hardware capabilities through |
| a character device node named /dev/kvm. |
| |
| If unsure, say N. |
| |
| config KVM_BOOK3S_64_HV |
| bool "KVM support for POWER7 and PPC970 using hypervisor mode in host" |
| depends on KVM_BOOK3S_64 |
| select MMU_NOTIFIER |
| ---help--- |
| Support running unmodified book3s_64 guest kernels in |
| virtual machines on POWER7 and PPC970 processors that have |
| hypervisor mode available to the host. |
| |
| If you say Y here, KVM will use the hardware virtualization |
| facilities of POWER7 (and later) processors, meaning that |
| guest operating systems will run at full hardware speed |
| using supervisor and user modes. However, this also means |
| that KVM is not usable under PowerVM (pHyp), is only usable |
| on POWER7 (or later) processors and PPC970-family processors, |
| and cannot emulate a different processor from the host processor. |
| |
| If unsure, say N. |
| |
| config KVM_BOOK3S_64_PR |
| def_bool y |
| depends on KVM_BOOK3S_64 && !KVM_BOOK3S_64_HV |
| select KVM_BOOK3S_PR |
| |
| config KVM_440 |
| bool "KVM support for PowerPC 440 processors" |
| depends on EXPERIMENTAL && 44x |
| select KVM |
| select KVM_MMIO |
| ---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_440 || KVM_E500 |
| ---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 |
| select KVM_MMIO |
| ---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. |
| |
| source drivers/vhost/Kconfig |
| |
| endif # VIRTUALIZATION |