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 depends on MIPS_FP_SUPPORT 22 select EXPORT_UASM 23 select PREEMPT_NOTIFIERS 24 select KVM_GENERIC_DIRTYLOG_READ_PROTECT 25 select HAVE_KVM_EVENTFD 26 select HAVE_KVM_VCPU_ASYNC_IOCTL 27 select KVM_MMIO 28 select MMU_NOTIFIER 29 select SRCU 30 help 31 Support for hosting Guest kernels. 32 33choice 34 prompt "Virtualization mode" 35 depends on KVM 36 default KVM_MIPS_TE 37 38config KVM_MIPS_TE 39 bool "Trap & Emulate" 40 depends on CPU_MIPS32_R2 41 help 42 Use trap and emulate to virtualize 32-bit guests in user mode. This 43 does not require any special hardware Virtualization support beyond 44 standard MIPS32 r2 or later, but it does require the guest kernel 45 to be configured with CONFIG_KVM_GUEST=y so that it resides in the 46 user address segment. 47 48config KVM_MIPS_VZ 49 bool "MIPS Virtualization (VZ) ASE" 50 help 51 Use the MIPS Virtualization (VZ) ASE to virtualize guests. This 52 supports running unmodified guest kernels (with CONFIG_KVM_GUEST=n), 53 but requires hardware support. 54 55endchoice 56 57config KVM_MIPS_DYN_TRANS 58 bool "KVM/MIPS: Dynamic binary translation to reduce traps" 59 depends on KVM_MIPS_TE 60 default y 61 help 62 When running in Trap & Emulate mode patch privileged 63 instructions to reduce the number of traps. 64 65 If unsure, say Y. 66 67config KVM_MIPS_DEBUG_COP0_COUNTERS 68 bool "Maintain counters for COP0 accesses" 69 depends on KVM 70 help 71 Maintain statistics for Guest COP0 accesses. 72 A histogram of COP0 accesses is printed when the VM is 73 shutdown. 74 75 If unsure, say N. 76 77endif # VIRTUALIZATION 78