arch/s390/Kconfig

   1 config MMU
   2         def_bool y
   3
   4 config ZONE_DMA
   5         def_bool y
   6
   7 config LOCKDEP_SUPPORT
   8         def_bool y
   9
  10 config STACKTRACE_SUPPORT
  11         def_bool y
  12
  13 config HAVE_LATENCYTOP_SUPPORT
  14         def_bool y
  15
  16 config RWSEM_GENERIC_SPINLOCK
  17         bool
  18
  19 config RWSEM_XCHGADD_ALGORITHM
  20         def_bool y
  21
  22 config ARCH_HAS_ILOG2_U32
  23         def_bool n
  24
  25 config ARCH_HAS_ILOG2_U64
  26         def_bool n
  27
  28 config GENERIC_HWEIGHT
  29         def_bool y
  30
  31 config GENERIC_BUG
  32         def_bool y if BUG
  33
  34 config GENERIC_BUG_RELATIVE_POINTERS
  35         def_bool y
  36
  37 config ARCH_DMA_ADDR_T_64BIT
  38         def_bool 64BIT
  39
  40 config GENERIC_LOCKBREAK
  41         def_bool y if SMP && PREEMPT
  42
  43 config PGSTE
  44         def_bool y if KVM
  45
  46 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
  47         def_bool y
  48
  49 config KEXEC
  50         def_bool y
  51
  52 config AUDIT_ARCH
  53         def_bool y
  54
  55 config NO_IOPORT
  56         def_bool y
  57
  58 config PCI_QUIRKS
  59         def_bool n
  60
  61 config S390
  62         def_bool y
  63         select ARCH_DISCARD_MEMBLOCK
  64         select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
  65         select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
  66         select ARCH_HAVE_NMI_SAFE_CMPXCHG
  67         select ARCH_INLINE_READ_LOCK
  68         select ARCH_INLINE_READ_LOCK_BH
  69         select ARCH_INLINE_READ_LOCK_IRQ
  70         select ARCH_INLINE_READ_LOCK_IRQSAVE
  71         select ARCH_INLINE_READ_TRYLOCK
  72         select ARCH_INLINE_READ_UNLOCK
  73         select ARCH_INLINE_READ_UNLOCK_BH
  74         select ARCH_INLINE_READ_UNLOCK_IRQ
  75         select ARCH_INLINE_READ_UNLOCK_IRQRESTORE
  76         select ARCH_INLINE_SPIN_LOCK
  77         select ARCH_INLINE_SPIN_LOCK_BH
  78         select ARCH_INLINE_SPIN_LOCK_IRQ
  79         select ARCH_INLINE_SPIN_LOCK_IRQSAVE
  80         select ARCH_INLINE_SPIN_TRYLOCK
  81         select ARCH_INLINE_SPIN_TRYLOCK_BH
  82         select ARCH_INLINE_SPIN_UNLOCK
  83         select ARCH_INLINE_SPIN_UNLOCK_BH
  84         select ARCH_INLINE_SPIN_UNLOCK_IRQ
  85         select ARCH_INLINE_SPIN_UNLOCK_IRQRESTORE
  86         select ARCH_INLINE_WRITE_LOCK
  87         select ARCH_INLINE_WRITE_LOCK_BH
  88         select ARCH_INLINE_WRITE_LOCK_IRQ
  89         select ARCH_INLINE_WRITE_LOCK_IRQSAVE
  90         select ARCH_INLINE_WRITE_TRYLOCK
  91         select ARCH_INLINE_WRITE_UNLOCK
  92         select ARCH_INLINE_WRITE_UNLOCK_BH
  93         select ARCH_INLINE_WRITE_UNLOCK_IRQ
  94         select ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE
  95         select ARCH_SAVE_PAGE_KEYS if HIBERNATION
  96         select ARCH_WANT_IPC_PARSE_VERSION
  97         select BUILDTIME_EXTABLE_SORT
  98         select CLONE_BACKWARDS2
  99         select GENERIC_CLOCKEVENTS
 100         select GENERIC_CPU_DEVICES if !SMP
 101         select GENERIC_SMP_IDLE_THREAD
 102         select GENERIC_TIME_VSYSCALL_OLD
 103         select HAVE_ALIGNED_STRUCT_PAGE if SLUB
 104         select HAVE_ARCH_JUMP_LABEL if !MARCH_G5
 105         select HAVE_ARCH_MUTEX_CPU_RELAX
 106         select HAVE_ARCH_SECCOMP_FILTER
 107         select HAVE_ARCH_TRACEHOOK
 108         select HAVE_ARCH_TRANSPARENT_HUGEPAGE if 64BIT
 109         select HAVE_BPF_JIT if 64BIT && PACK_STACK
 110         select HAVE_CMPXCHG_DOUBLE
 111         select HAVE_CMPXCHG_LOCAL
 112         select HAVE_C_RECORDMCOUNT
 113         select HAVE_DEBUG_KMEMLEAK
 114         select HAVE_DYNAMIC_FTRACE
 115         select HAVE_FTRACE_MCOUNT_RECORD
 116         select HAVE_FUNCTION_GRAPH_TRACER
 117         select HAVE_FUNCTION_TRACER
 118         select HAVE_FUNCTION_TRACE_MCOUNT_TEST
 119         select HAVE_GENERIC_HARDIRQS
 120         select HAVE_KERNEL_BZIP2
 121         select HAVE_KERNEL_GZIP
 122         select HAVE_KERNEL_LZ4
 123         select HAVE_KERNEL_LZMA
 124         select HAVE_KERNEL_LZO
 125         select HAVE_KERNEL_XZ
 126         select HAVE_KPROBES
 127         select HAVE_KRETPROBES
 128         select HAVE_KVM if 64BIT
 129         select HAVE_MEMBLOCK
 130         select HAVE_MEMBLOCK_NODE_MAP
 131         select HAVE_MOD_ARCH_SPECIFIC
 132         select HAVE_OPROFILE
 133         select HAVE_PERF_EVENTS
 134         select HAVE_REGS_AND_STACK_ACCESS_API
 135         select HAVE_SYSCALL_TRACEPOINTS
 136         select HAVE_UID16 if 32BIT
 137         select HAVE_VIRT_CPU_ACCOUNTING
 138         select INIT_ALL_POSSIBLE
 139         select KTIME_SCALAR if 32BIT
 140         select MODULES_USE_ELF_RELA
 141         select OLD_SIGACTION
 142         select OLD_SIGSUSPEND3
 143         select SYSCTL_EXCEPTION_TRACE
 144         select USE_GENERIC_SMP_HELPERS if SMP
 145         select VIRT_CPU_ACCOUNTING
 146         select VIRT_TO_BUS
 147
 148 config SCHED_OMIT_FRAME_POINTER
 149         def_bool y
 150
 151 source "init/Kconfig"
 152
 153 source "kernel/Kconfig.freezer"
 154
 155 menu "Processor type and features"
 156
 157 config HAVE_MARCH_Z900_FEATURES
 158         def_bool n
 159
 160 config HAVE_MARCH_Z990_FEATURES
 161         def_bool n
 162         select HAVE_MARCH_Z900_FEATURES
 163
 164 config HAVE_MARCH_Z9_109_FEATURES
 165         def_bool n
 166         select HAVE_MARCH_Z990_FEATURES
 167
 168 config HAVE_MARCH_Z10_FEATURES
 169         def_bool n
 170         select HAVE_MARCH_Z9_109_FEATURES
 171
 172 config HAVE_MARCH_Z196_FEATURES
 173         def_bool n
 174         select HAVE_MARCH_Z10_FEATURES
 175
 176 config HAVE_MARCH_ZEC12_FEATURES
 177         def_bool n
 178         select HAVE_MARCH_Z196_FEATURES
 179
 180 choice
 181         prompt "Processor type"
 182         default MARCH_G5
 183
 184 config MARCH_G5
 185         bool "System/390 model G5 and G6"
 186         depends on !64BIT
 187         help
 188           Select this to build a 31 bit kernel that works
 189           on all ESA/390 and z/Architecture machines.
 190
 191 config MARCH_Z900
 192         bool "IBM zSeries model z800 and z900"
 193         select HAVE_MARCH_Z900_FEATURES if 64BIT
 194         help
 195           Select this to enable optimizations for model z800/z900 (2064 and
 196           2066 series). This will enable some optimizations that are not
 197           available on older ESA/390 (31 Bit) only CPUs.
 198
 199 config MARCH_Z990
 200         bool "IBM zSeries model z890 and z990"
 201         select HAVE_MARCH_Z990_FEATURES if 64BIT
 202         help
 203           Select this to enable optimizations for model z890/z990 (2084 and
 204           2086 series). The kernel will be slightly faster but will not work
 205           on older machines.
 206
 207 config MARCH_Z9_109
 208         bool "IBM System z9"
 209         select HAVE_MARCH_Z9_109_FEATURES if 64BIT
 210         help
 211           Select this to enable optimizations for IBM System z9 (2094 and
 212           2096 series). The kernel will be slightly faster but will not work
 213           on older machines.
 214
 215 config MARCH_Z10
 216         bool "IBM System z10"
 217         select HAVE_MARCH_Z10_FEATURES if 64BIT
 218         help
 219           Select this to enable optimizations for IBM System z10 (2097 and
 220           2098 series). The kernel will be slightly faster but will not work
 221           on older machines.
 222
 223 config MARCH_Z196
 224         bool "IBM zEnterprise 114 and 196"
 225         select HAVE_MARCH_Z196_FEATURES if 64BIT
 226         help
 227           Select this to enable optimizations for IBM zEnterprise 114 and 196
 228           (2818 and 2817 series). The kernel will be slightly faster but will
 229           not work on older machines.
 230
 231 config MARCH_ZEC12
 232         bool "IBM zBC12 and zEC12"
 233         select HAVE_MARCH_ZEC12_FEATURES if 64BIT
 234         help
 235           Select this to enable optimizations for IBM zBC12 and zEC12 (2828 and
 236           2827 series). The kernel will be slightly faster but will not work on
 237           older machines.
 238
 239 endchoice
 240
 241 config 64BIT
 242         def_bool y
 243         prompt "64 bit kernel"
 244         help
 245           Select this option if you have an IBM z/Architecture machine
 246           and want to use the 64 bit addressing mode.
 247
 248 config 32BIT
 249         def_bool y if !64BIT
 250
 251 config COMPAT
 252         def_bool y
 253         prompt "Kernel support for 31 bit emulation"
 254         depends on 64BIT
 255         select COMPAT_BINFMT_ELF if BINFMT_ELF
 256         select ARCH_WANT_OLD_COMPAT_IPC
 257         select COMPAT_OLD_SIGACTION
 258         help
 259           Select this option if you want to enable your system kernel to
 260           handle system-calls from ELF binaries for 31 bit ESA.  This option
 261           (and some other stuff like libraries and such) is needed for
 262           executing 31 bit applications.  It is safe to say "Y".
 263
 264 config SYSVIPC_COMPAT
 265         def_bool y if COMPAT && SYSVIPC
 266
 267 config KEYS_COMPAT
 268         def_bool y if COMPAT && KEYS
 269
 270 config SMP
 271         def_bool y
 272         prompt "Symmetric multi-processing support"
 273         ---help---
 274           This enables support for systems with more than one CPU. If you have
 275           a system with only one CPU, like most personal computers, say N. If
 276           you have a system with more than one CPU, say Y.
 277
 278           If you say N here, the kernel will run on single and multiprocessor
 279           machines, but will use only one CPU of a multiprocessor machine. If
 280           you say Y here, the kernel will run on many, but not all,
 281           singleprocessor machines. On a singleprocessor machine, the kernel
 282           will run faster if you say N here.
 283
 284           See also the SMP-HOWTO available at
 285           <http://www.tldp.org/docs.html#howto>.
 286
 287           Even if you don't know what to do here, say Y.
 288
 289 config NR_CPUS
 290         int "Maximum number of CPUs (2-64)"
 291         range 2 64
 292         depends on SMP
 293         default "32" if !64BIT
 294         default "64" if 64BIT
 295         help
 296           This allows you to specify the maximum number of CPUs which this
 297           kernel will support.  The maximum supported value is 64 and the
 298           minimum value which makes sense is 2.
 299
 300           This is purely to save memory - each supported CPU adds
 301           approximately sixteen kilobytes to the kernel image.
 302
 303 config HOTPLUG_CPU
 304         def_bool y
 305         prompt "Support for hot-pluggable CPUs"
 306         depends on SMP
 307         help
 308           Say Y here to be able to turn CPUs off and on. CPUs
 309           can be controlled through /sys/devices/system/cpu/cpu#.
 310           Say N if you want to disable CPU hotplug.
 311
 312 config SCHED_MC
 313         def_bool n
 314
 315 config SCHED_BOOK
 316         def_bool y
 317         prompt "Book scheduler support"
 318         depends on SMP
 319         select SCHED_MC
 320         help
 321           Book scheduler support improves the CPU scheduler's decision making
 322           when dealing with machines that have several books.
 323
 324 source kernel/Kconfig.preempt
 325
 326 config MATHEMU
 327         def_bool y
 328         prompt "IEEE FPU emulation"
 329         depends on MARCH_G5
 330         help
 331           This option is required for IEEE compliant floating point arithmetic
 332           on older ESA/390 machines. Say Y unless you know your machine doesn't
 333           need this.
 334
 335 source kernel/Kconfig.hz
 336
 337 endmenu
 338
 339 menu "Memory setup"
 340
 341 config ARCH_SPARSEMEM_ENABLE
 342         def_bool y
 343         select SPARSEMEM_VMEMMAP_ENABLE
 344         select SPARSEMEM_VMEMMAP
 345         select SPARSEMEM_STATIC if !64BIT
 346
 347 config ARCH_SPARSEMEM_DEFAULT
 348         def_bool y
 349
 350 config ARCH_SELECT_MEMORY_MODEL
 351         def_bool y
 352
 353 config ARCH_ENABLE_MEMORY_HOTPLUG
 354         def_bool y if SPARSEMEM
 355
 356 config ARCH_ENABLE_MEMORY_HOTREMOVE
 357         def_bool y
 358
 359 config FORCE_MAX_ZONEORDER
 360         int
 361         default "9"
 362
 363 source "mm/Kconfig"
 364
 365 config PACK_STACK
 366         def_bool y
 367         prompt "Pack kernel stack"
 368         help
 369           This option enables the compiler option -mkernel-backchain if it
 370           is available. If the option is available the compiler supports
 371           the new stack layout which dramatically reduces the minimum stack
 372           frame size. With an old compiler a non-leaf function needs a
 373           minimum of 96 bytes on 31 bit and 160 bytes on 64 bit. With
 374           -mkernel-backchain the minimum size drops to 16 byte on 31 bit
 375           and 24 byte on 64 bit.
 376
 377           Say Y if you are unsure.
 378
 379 config CHECK_STACK
 380         def_bool y
 381         prompt "Detect kernel stack overflow"
 382         help
 383           This option enables the compiler option -mstack-guard and
 384           -mstack-size if they are available. If the compiler supports them
 385           it will emit additional code to each function prolog to trigger
 386           an illegal operation if the kernel stack is about to overflow.
 387
 388           Say N if you are unsure.
 389
 390 config STACK_GUARD
 391         int "Size of the guard area (128-1024)"
 392         range 128 1024
 393         depends on CHECK_STACK
 394         default "256"
 395         help
 396           This allows you to specify the size of the guard area at the lower
 397           end of the kernel stack. If the kernel stack points into the guard
 398           area on function entry an illegal operation is triggered. The size
 399           needs to be a power of 2. Please keep in mind that the size of an
 400           interrupt frame is 184 bytes for 31 bit and 328 bytes on 64 bit.
 401           The minimum size for the stack guard should be 256 for 31 bit and
 402           512 for 64 bit.
 403
 404 config WARN_DYNAMIC_STACK
 405         def_bool n
 406         prompt "Emit compiler warnings for function with dynamic stack usage"
 407         help
 408           This option enables the compiler option -mwarn-dynamicstack. If the
 409           compiler supports this options generates warnings for functions
 410           that dynamically allocate stack space using alloca.
 411
 412           Say N if you are unsure.
 413
 414 endmenu
 415
 416 menu "I/O subsystem"
 417
 418 config QDIO
 419         def_tristate y
 420         prompt "QDIO support"
 421         ---help---
 422           This driver provides the Queued Direct I/O base support for
 423           IBM System z.
 424
 425           To compile this driver as a module, choose M here: the
 426           module will be called qdio.
 427
 428           If unsure, say Y.
 429
 430 menuconfig PCI
 431         bool "PCI support"
 432         default n
 433         depends on 64BIT
 434         select PCI_MSI
 435         help
 436           Enable PCI support.
 437
 438 if PCI
 439
 440 config PCI_NR_FUNCTIONS
 441         int "Maximum number of PCI functions (1-4096)"
 442         range 1 4096
 443         default "64"
 444         help
 445           This allows you to specify the maximum number of PCI functions which
 446           this kernel will support.
 447
 448 config PCI_NR_MSI
 449         int "Maximum number of MSI interrupts (64-32768)"
 450         range 64 32768
 451         default "256"
 452         help
 453           This defines the number of virtual interrupts the kernel will
 454           provide for MSI interrupts. If you configure your system to have
 455           too few drivers will fail to allocate MSI interrupts for all
 456           PCI devices.
 457
 458 source "drivers/pci/Kconfig"
 459 source "drivers/pci/pcie/Kconfig"
 460 source "drivers/pci/hotplug/Kconfig"
 461
 462 endif   # PCI
 463
 464 config PCI_DOMAINS
 465         def_bool PCI
 466
 467 config HAS_IOMEM
 468         def_bool PCI
 469
 470 config IOMMU_HELPER
 471         def_bool PCI
 472
 473 config HAS_DMA
 474         def_bool PCI
 475         select HAVE_DMA_API_DEBUG
 476
 477 config NEED_SG_DMA_LENGTH
 478         def_bool PCI
 479
 480 config HAVE_DMA_ATTRS
 481         def_bool PCI
 482
 483 config NEED_DMA_MAP_STATE
 484         def_bool PCI
 485
 486 config CHSC_SCH
 487         def_tristate m
 488         prompt "Support for CHSC subchannels"
 489         help
 490           This driver allows usage of CHSC subchannels. A CHSC subchannel
 491           is usually present on LPAR only.
 492           The driver creates a device /dev/chsc, which may be used to
 493           obtain I/O configuration information about the machine and
 494           to issue asynchronous chsc commands (DANGEROUS).
 495           You will usually only want to use this interface on a special
 496           LPAR designated for system management.
 497
 498           To compile this driver as a module, choose M here: the
 499           module will be called chsc_sch.
 500
 501           If unsure, say N.
 502
 503 config SCM_BUS
 504         def_bool y
 505         depends on 64BIT
 506         prompt "SCM bus driver"
 507         help
 508           Bus driver for Storage Class Memory.
 509
 510 config EADM_SCH
 511         def_tristate m
 512         prompt "Support for EADM subchannels"
 513         depends on SCM_BUS
 514         help
 515           This driver allows usage of EADM subchannels. EADM subchannels act
 516           as a communication vehicle for SCM increments.
 517
 518           To compile this driver as a module, choose M here: the
 519           module will be called eadm_sch.
 520
 521 endmenu
 522
 523 menu "Dump support"
 524
 525 config CRASH_DUMP
 526         bool "kernel crash dumps"
 527         depends on 64BIT && SMP
 528         select KEXEC
 529         select ZFCPDUMP
 530         help
 531           Generate crash dump after being started by kexec.
 532           Crash dump kernels are loaded in the main kernel with kexec-tools
 533           into a specially reserved region and then later executed after
 534           a crash by kdump/kexec.
 535           For more details see Documentation/kdump/kdump.txt
 536
 537 config ZFCPDUMP
 538         def_bool n
 539         prompt "zfcpdump support"
 540         depends on SMP
 541         help
 542           Select this option if you want to build an zfcpdump enabled kernel.
 543           Refer to <file:Documentation/s390/zfcpdump.txt> for more details on this.
 544
 545 endmenu
 546
 547 menu "Executable file formats / Emulations"
 548
 549 source "fs/Kconfig.binfmt"
 550
 551 config SECCOMP
 552         def_bool y
 553         prompt "Enable seccomp to safely compute untrusted bytecode"
 554         depends on PROC_FS
 555         help
 556           This kernel feature is useful for number crunching applications
 557           that may need to compute untrusted bytecode during their
 558           execution. By using pipes or other transports made available to
 559           the process as file descriptors supporting the read/write
 560           syscalls, it's possible to isolate those applications in
 561           their own address space using seccomp. Once seccomp is
 562           enabled via /proc/<pid>/seccomp, it cannot be disabled
 563           and the task is only allowed to execute a few safe syscalls
 564           defined by each seccomp mode.
 565
 566           If unsure, say Y.
 567
 568 endmenu
 569
 570 menu "Power Management"
 571
 572 config ARCH_HIBERNATION_POSSIBLE
 573         def_bool y if 64BIT
 574
 575 source "kernel/power/Kconfig"
 576
 577 endmenu
 578
 579 source "net/Kconfig"
 580
 581 config PCMCIA
 582         def_bool n
 583
 584 config CCW
 585         def_bool y
 586
 587 source "drivers/Kconfig"
 588
 589 source "fs/Kconfig"
 590
 591 source "arch/s390/Kconfig.debug"
 592
 593 source "security/Kconfig"
 594
 595 source "crypto/Kconfig"
 596
 597 source "lib/Kconfig"
 598
 599 menu "Virtualization"
 600
 601 config PFAULT
 602         def_bool y
 603         prompt "Pseudo page fault support"
 604         help
 605           Select this option, if you want to use PFAULT pseudo page fault
 606           handling under VM. If running native or in LPAR, this option
 607           has no effect. If your VM does not support PFAULT, PAGEEX
 608           pseudo page fault handling will be used.
 609           Note that VM 4.2 supports PFAULT but has a bug in its
 610           implementation that causes some problems.
 611           Everybody who wants to run Linux under VM != VM4.2 should select
 612           this option.
 613
 614 config SHARED_KERNEL
 615         bool "VM shared kernel support"
 616         depends on !JUMP_LABEL
 617         help
 618           Select this option, if you want to share the text segment of the
 619           Linux kernel between different VM guests. This reduces memory
 620           usage with lots of guests but greatly increases kernel size.
 621           Also if a kernel was IPL'ed from a shared segment the kexec system
 622           call will not work.
 623           You should only select this option if you know what you are
 624           doing and want to exploit this feature.
 625
 626 config CMM
 627         def_tristate n
 628         prompt "Cooperative memory management"
 629         help
 630           Select this option, if you want to enable the kernel interface
 631           to reduce the memory size of the system. This is accomplished
 632           by allocating pages of memory and put them "on hold". This only
 633           makes sense for a system running under VM where the unused pages
 634           will be reused by VM for other guest systems. The interface
 635           allows an external monitor to balance memory of many systems.
 636           Everybody who wants to run Linux under VM should select this
 637           option.
 638
 639 config CMM_IUCV
 640         def_bool y
 641         prompt "IUCV special message interface to cooperative memory management"
 642         depends on CMM && (SMSGIUCV=y || CMM=SMSGIUCV)
 643         help
 644           Select this option to enable the special message interface to
 645           the cooperative memory management.
 646
 647 config APPLDATA_BASE
 648         def_bool n
 649         prompt "Linux - VM Monitor Stream, base infrastructure"
 650         depends on PROC_FS
 651         help
 652           This provides a kernel interface for creating and updating z/VM APPLDATA
 653           monitor records. The monitor records are updated at certain time
 654           intervals, once the timer is started.
 655           Writing 1 or 0 to /proc/appldata/timer starts(1) or stops(0) the timer,
 656           i.e. enables or disables monitoring on the Linux side.
 657           A custom interval value (in seconds) can be written to
 658           /proc/appldata/interval.
 659
 660           Defaults are 60 seconds interval and timer off.
 661           The /proc entries can also be read from, showing the current settings.
 662
 663 config APPLDATA_MEM
 664         def_tristate m
 665         prompt "Monitor memory management statistics"
 666         depends on APPLDATA_BASE && VM_EVENT_COUNTERS
 667         help
 668           This provides memory management related data to the Linux - VM Monitor
 669           Stream, like paging/swapping rate, memory utilisation, etc.
 670           Writing 1 or 0 to /proc/appldata/memory creates(1) or removes(0) a z/VM
 671           APPLDATA monitor record, i.e. enables or disables monitoring this record
 672           on the z/VM side.
 673
 674           Default is disabled.
 675           The /proc entry can also be read from, showing the current settings.
 676
 677           This can also be compiled as a module, which will be called
 678           appldata_mem.o.
 679
 680 config APPLDATA_OS
 681         def_tristate m
 682         prompt "Monitor OS statistics"
 683         depends on APPLDATA_BASE
 684         help
 685           This provides OS related data to the Linux - VM Monitor Stream, like
 686           CPU utilisation, etc.
 687           Writing 1 or 0 to /proc/appldata/os creates(1) or removes(0) a z/VM
 688           APPLDATA monitor record, i.e. enables or disables monitoring this record
 689           on the z/VM side.
 690
 691           Default is disabled.
 692           This can also be compiled as a module, which will be called
 693           appldata_os.o.
 694
 695 config APPLDATA_NET_SUM
 696         def_tristate m
 697         prompt "Monitor overall network statistics"
 698         depends on APPLDATA_BASE && NET
 699         help
 700           This provides network related data to the Linux - VM Monitor Stream,
 701           currently there is only a total sum of network I/O statistics, no
 702           per-interface data.
 703           Writing 1 or 0 to /proc/appldata/net_sum creates(1) or removes(0) a z/VM
 704           APPLDATA monitor record, i.e. enables or disables monitoring this record
 705           on the z/VM side.
 706
 707           Default is disabled.
 708           This can also be compiled as a module, which will be called
 709           appldata_net_sum.o.
 710
 711 config S390_HYPFS_FS
 712         def_bool y
 713         prompt "s390 hypervisor file system support"
 714         select SYS_HYPERVISOR
 715         help
 716           This is a virtual file system intended to provide accounting
 717           information in an s390 hypervisor environment.
 718
 719 source "arch/s390/kvm/Kconfig"
 720
 721 config S390_GUEST
 722         def_bool y
 723         prompt "s390 support for virtio devices"
 724         depends on 64BIT
 725         select TTY
 726         select VIRTUALIZATION
 727         select VIRTIO
 728         select VIRTIO_CONSOLE
 729         help
 730           Enabling this option adds support for virtio based paravirtual device
 731           drivers on s390.
 732
 733           Select this option if you want to run the kernel as a guest under
 734           the KVM hypervisor.
 735
 736 endmenu