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 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
75source drivers/vhost/Kconfig
76
77endif # VIRTUALIZATION