1 # SPDX-License-Identifier: GPL-2.0 1 # SPDX-License-Identifier: GPL-2.0
2 # 2 #
3 # KVM configuration 3 # KVM configuration
4 # 4 #
5 <<
6 source "virt/kvm/Kconfig" 5 source "virt/kvm/Kconfig"
7 6
8 menuconfig VIRTUALIZATION 7 menuconfig VIRTUALIZATION
9 bool "Virtualization" 8 bool "Virtualization"
10 help !! 9 ---help---
11 Say Y here to get to see options for 10 Say Y here to get to see options for using your Linux host to run
12 other operating systems inside virtu 11 other operating systems inside virtual machines (guests).
13 This option alone does not add any k 12 This option alone does not add any kernel code.
14 13
15 If you say N, all options in this su !! 14 If you say N, all options in this submenu will be skipped and disabled.
16 disabled. <<
17 15
18 if VIRTUALIZATION 16 if VIRTUALIZATION
19 17
20 config KVM 18 config KVM
21 tristate "Kernel-based Virtual Machine !! 19 tristate "Kernel-based Virtual Machine (KVM) support"
22 depends on RISCV_SBI && MMU !! 20 depends on HAVE_KVM
23 select HAVE_KVM_IRQCHIP !! 21 select EXPORT_UASM
24 select HAVE_KVM_IRQ_ROUTING !! 22 select PREEMPT_NOTIFIERS
25 select HAVE_KVM_MSI !! 23 select ANON_INODES
26 select HAVE_KVM_VCPU_ASYNC_IOCTL <<
27 select HAVE_KVM_READONLY_MEM <<
28 select KVM_COMMON <<
29 select KVM_GENERIC_DIRTYLOG_READ_PROTE 24 select KVM_GENERIC_DIRTYLOG_READ_PROTECT
30 select KVM_GENERIC_HARDWARE_ENABLING !! 25 select HAVE_KVM_VCPU_ASYNC_IOCTL
31 select KVM_MMIO 26 select KVM_MMIO
32 select KVM_XFER_TO_GUEST_WORK !! 27 select MMU_NOTIFIER
33 select KVM_GENERIC_MMU_NOTIFIER !! 28 select SRCU
34 select SCHED_INFO !! 29 ---help---
35 help !! 30 Support for hosting Guest kernels.
36 Support hosting virtualized guest ma !! 31
>> 32 choice
>> 33 prompt "Virtualization mode"
>> 34 depends on KVM
>> 35 default KVM_MIPS_TE
>> 36
>> 37 config 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
>> 46 config 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
>> 53 endchoice
>> 54
>> 55 config 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
>> 65 config 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.
37 72
38 If unsure, say N. 73 If unsure, say N.
>> 74
>> 75 source drivers/vhost/Kconfig
39 76
40 endif # VIRTUALIZATION 77 endif # VIRTUALIZATION
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