1# SPDX-License-Identifier: GPL-2.0 2# 3# KVM configuration 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 disabled. 15 16if VIRTUALIZATION 17 18config KVM 19 tristate "Kernel-based Virtual Machine (KVM) support" 20 depends on HAVE_KVM 21 select EXPORT_UASM 22 select PREEMPT_NOTIFIERS 23 select ANON_INODES 24 select KVM_GENERIC_DIRTYLOG_READ_PROTECT 25 select KVM_MMIO 26 select MMU_NOTIFIER 27 select SRCU 28 ---help--- 29 Support for hosting Guest kernels. 30 31choice 32 prompt "Virtualization mode" 33 depends on KVM 34 default KVM_MIPS_TE 35 36config KVM_MIPS_TE 37 bool "Trap & Emulate" 38 ---help--- 39 Use trap and emulate to virtualize 32-bit guests in user mode. This 40 does not require any special hardware Virtualization support beyond 41 standard MIPS32/64 r2 or later, but it does require the guest kernel 42 to be configured with CONFIG_KVM_GUEST=y so that it resides in the 43 user address segment. 44 45config KVM_MIPS_VZ 46 bool "MIPS Virtualization (VZ) ASE" 47 ---help--- 48 Use the MIPS Virtualization (VZ) ASE to virtualize guests. This 49 supports running unmodified guest kernels (with CONFIG_KVM_GUEST=n), 50 but requires hardware support. 51 52endchoice 53 54config KVM_MIPS_DYN_TRANS 55 bool "KVM/MIPS: Dynamic binary translation to reduce traps" 56 depends on KVM_MIPS_TE 57 default y 58 ---help--- 59 When running in Trap & Emulate mode patch privileged 60 instructions to reduce the number of traps. 61 62 If unsure, say Y. 63 64config KVM_MIPS_DEBUG_COP0_COUNTERS 65 bool "Maintain counters for COP0 accesses" 66 depends on KVM 67 ---help--- 68 Maintain statistics for Guest COP0 accesses. 69 A histogram of COP0 accesses is printed when the VM is 70 shutdown. 71 72 If unsure, say N. 73 74source drivers/vhost/Kconfig 75 76endif # VIRTUALIZATION 77