| xj | b04a402 | 2021-11-25 15:01:52 +0800 | [diff] [blame] | 1 | # SPDX-License-Identifier: GPL-2.0 |
| 2 | # |
| 3 | # KVM configuration |
| 4 | # |
| 5 | source "virt/kvm/Kconfig" |
| 6 | |
| 7 | menuconfig 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 | |
| 16 | if VIRTUALIZATION |
| 17 | |
| 18 | config KVM |
| 19 | tristate "Kernel-based Virtual Machine (KVM) support" |
| 20 | depends on HAVE_KVM |
| 21 | select EXPORT_UASM |
| 22 | select PREEMPT_NOTIFIERS |
| 23 | select KVM_GENERIC_DIRTYLOG_READ_PROTECT |
| 24 | select HAVE_KVM_VCPU_ASYNC_IOCTL |
| 25 | select KVM_MMIO |
| 26 | select MMU_NOTIFIER |
| 27 | select SRCU |
| 28 | ---help--- |
| 29 | Support for hosting Guest kernels. |
| 30 | |
| 31 | choice |
| 32 | prompt "Virtualization mode" |
| 33 | depends on KVM |
| 34 | default KVM_MIPS_TE |
| 35 | |
| 36 | config 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 | |
| 45 | config 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 | |
| 52 | endchoice |
| 53 | |
| 54 | config 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 | |
| 64 | config 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 | |
| 74 | source drivers/vhost/Kconfig |
| 75 | |
| 76 | endif # VIRTUALIZATION |