Version:  2.0.40 2.2.26 2.4.37 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14 3.15 3.16 3.17 3.18 3.19 4.0

Linux/arch/powerpc/kvm/Kconfig

  1 #
  2 # KVM configuration
  3 #
  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
 15           disabled.
 16 
 17 if VIRTUALIZATION
 18 
 19 config KVM
 20         bool
 21         select PREEMPT_NOTIFIERS
 22         select ANON_INODES
 23         select HAVE_KVM_EVENTFD
 24         select SRCU
 25 
 26 config KVM_BOOK3S_HANDLER
 27         bool
 28 
 29 config KVM_BOOK3S_32_HANDLER
 30         bool
 31         select KVM_BOOK3S_HANDLER
 32         select KVM_MMIO
 33 
 34 config KVM_BOOK3S_64_HANDLER
 35         bool
 36         select KVM_BOOK3S_HANDLER
 37 
 38 config KVM_BOOK3S_PR_POSSIBLE
 39         bool
 40         select KVM_MMIO
 41         select MMU_NOTIFIER
 42 
 43 config KVM_BOOK3S_HV_POSSIBLE
 44         bool
 45 
 46 config KVM_BOOK3S_32
 47         tristate "KVM support for PowerPC book3s_32 processors"
 48         depends on PPC_BOOK3S_32 && !SMP && !PTE_64BIT
 49         select KVM
 50         select KVM_BOOK3S_32_HANDLER
 51         select KVM_BOOK3S_PR_POSSIBLE
 52         ---help---
 53           Support running unmodified book3s_32 guest kernels
 54           in virtual machines on book3s_32 host processors.
 55 
 56           This module provides access to the hardware capabilities through
 57           a character device node named /dev/kvm.
 58 
 59           If unsure, say N.
 60 
 61 config KVM_BOOK3S_64
 62         tristate "KVM support for PowerPC book3s_64 processors"
 63         depends on PPC_BOOK3S_64
 64         select KVM_BOOK3S_64_HANDLER
 65         select KVM
 66         select KVM_BOOK3S_PR_POSSIBLE if !KVM_BOOK3S_HV_POSSIBLE
 67         ---help---
 68           Support running unmodified book3s_64 and book3s_32 guest kernels
 69           in virtual machines on book3s_64 host processors.
 70 
 71           This module provides access to the hardware capabilities through
 72           a character device node named /dev/kvm.
 73 
 74           If unsure, say N.
 75 
 76 config KVM_BOOK3S_64_HV
 77         tristate "KVM support for POWER7 and PPC970 using hypervisor mode in host"
 78         depends on KVM_BOOK3S_64
 79         select KVM_BOOK3S_HV_POSSIBLE
 80         select MMU_NOTIFIER
 81         select CMA
 82         ---help---
 83           Support running unmodified book3s_64 guest kernels in
 84           virtual machines on POWER7 and PPC970 processors that have
 85           hypervisor mode available to the host.
 86 
 87           If you say Y here, KVM will use the hardware virtualization
 88           facilities of POWER7 (and later) processors, meaning that
 89           guest operating systems will run at full hardware speed
 90           using supervisor and user modes.  However, this also means
 91           that KVM is not usable under PowerVM (pHyp), is only usable
 92           on POWER7 (or later) processors and PPC970-family processors,
 93           and cannot emulate a different processor from the host processor.
 94 
 95           If unsure, say N.
 96 
 97 config KVM_BOOK3S_64_PR
 98         tristate "KVM support without using hypervisor mode in host"
 99         depends on KVM_BOOK3S_64
100         select KVM_BOOK3S_PR_POSSIBLE
101         ---help---
102           Support running guest kernels in virtual machines on processors
103           without using hypervisor mode in the host, by running the
104           guest in user mode (problem state) and emulating all
105           privileged instructions and registers.
106 
107           This is not as fast as using hypervisor mode, but works on
108           machines where hypervisor mode is not available or not usable,
109           and can emulate processors that are different from the host
110           processor, including emulating 32-bit processors on a 64-bit
111           host.
112 
113 config KVM_BOOKE_HV
114         bool
115 
116 config KVM_EXIT_TIMING
117         bool "Detailed exit timing"
118         depends on KVM_E500V2 || KVM_E500MC
119         ---help---
120           Calculate elapsed time for every exit/enter cycle. A per-vcpu
121           report is available in debugfs kvm/vm#_vcpu#_timing.
122           The overhead is relatively small, however it is not recommended for
123           production environments.
124 
125           If unsure, say N.
126 
127 config KVM_E500V2
128         bool "KVM support for PowerPC E500v2 processors"
129         depends on E500 && !PPC_E500MC
130         select KVM
131         select KVM_MMIO
132         select MMU_NOTIFIER
133         ---help---
134           Support running unmodified E500 guest kernels in virtual machines on
135           E500v2 host processors.
136 
137           This module provides access to the hardware capabilities through
138           a character device node named /dev/kvm.
139 
140           If unsure, say N.
141 
142 config KVM_E500MC
143         bool "KVM support for PowerPC E500MC/E5500/E6500 processors"
144         depends on PPC_E500MC
145         select KVM
146         select KVM_MMIO
147         select KVM_BOOKE_HV
148         select MMU_NOTIFIER
149         ---help---
150           Support running unmodified E500MC/E5500/E6500 guest kernels in
151           virtual machines on E500MC/E5500/E6500 host processors.
152 
153           This module provides access to the hardware capabilities through
154           a character device node named /dev/kvm.
155 
156           If unsure, say N.
157 
158 config KVM_MPIC
159         bool "KVM in-kernel MPIC emulation"
160         depends on KVM && E500
161         select HAVE_KVM_IRQCHIP
162         select HAVE_KVM_IRQFD
163         select HAVE_KVM_IRQ_ROUTING
164         select HAVE_KVM_MSI
165         help
166           Enable support for emulating MPIC devices inside the
167           host kernel, rather than relying on userspace to emulate.
168           Currently, support is limited to certain versions of
169           Freescale's MPIC implementation.
170 
171 config KVM_XICS
172         bool "KVM in-kernel XICS emulation"
173         depends on KVM_BOOK3S_64 && !KVM_MPIC
174         select HAVE_KVM_IRQCHIP
175         select HAVE_KVM_IRQFD
176         default y
177         ---help---
178           Include support for the XICS (eXternal Interrupt Controller
179           Specification) interrupt controller architecture used on
180           IBM POWER (pSeries) servers.
181 
182 source drivers/vhost/Kconfig
183 
184 endif # VIRTUALIZATION

This page was automatically generated by LXR 0.3.1 (source).  •  Linux is a registered trademark of Linus Torvalds  •  Contact us