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