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b2441318 | 1 | # SPDX-License-Identifier: GPL-2.0 |
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2 | # |
3 | # KVM configuration | |
4 | # | |
5 | source "virt/kvm/Kconfig" | |
6 | ||
7 | menuconfig VIRTUALIZATION | |
8 | bool "Virtualization" | |
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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 | |
90e9311a | 21 | select EXPORT_UASM |
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22 | select PREEMPT_NOTIFIERS |
23 | select ANON_INODES | |
e88643ba | 24 | select KVM_GENERIC_DIRTYLOG_READ_PROTECT |
5cb0944c | 25 | select HAVE_KVM_VCPU_ASYNC_IOCTL |
2235a54d | 26 | select KVM_MMIO |
411740f5 | 27 | select MMU_NOTIFIER |
83fe27ea | 28 | select SRCU |
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29 | ---help--- |
30 | Support for hosting Guest kernels. | |
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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 | |
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54 | |
55 | config KVM_MIPS_DYN_TRANS | |
56 | bool "KVM/MIPS: Dynamic binary translation to reduce traps" | |
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57 | depends on KVM_MIPS_TE |
58 | default y | |
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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. | |
72 | ||
73 | If unsure, say N. | |
74 | ||
8636a1f9 | 75 | source "drivers/vhost/Kconfig" |
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76 | |
77 | endif # VIRTUALIZATION |