arch/powerpc/platforms/pseries/Kconfig

   1 config PPC_PSERIES
   2         depends on PPC64 && PPC_BOOK3S
   3         bool "IBM pSeries & new (POWER5-based) iSeries"
   4         select MPIC
   5         select PCI_MSI
   6         select XICS
   7         select PPC_I8259
   8         select PPC_RTAS
   9         select PPC_RTAS_DAEMON
  10         select RTAS_ERROR_LOGGING
  11         select PPC_UDBG_16550
  12         select PPC_NATIVE
  13         select PPC_PCI_CHOICE if EXPERT
  14         default y
  15
  16 config PPC_SPLPAR
  17         depends on PPC_PSERIES
  18         bool "Support for shared-processor logical partitions"
  19         default n
  20         help
  21           Enabling this option will make the kernel run more efficiently
  22           on logically-partitioned pSeries systems which use shared
  23           processors, that is, which share physical processors between
  24           two or more partitions.
  25
  26 config EEH
  27         bool "PCI Extended Error Handling (EEH)" if EXPERT
  28         depends on PPC_PSERIES && PCI
  29         default y if !EXPERT
  30
  31 config PSERIES_MSI
  32        bool
  33        depends on PCI_MSI && EEH
  34        default y
  35
  36 config PSERIES_ENERGY
  37         tristate "pSeries energy management capabilities driver"
  38         depends on PPC_PSERIES
  39         default y
  40         help
  41           Provides interface to platform energy management capabilities
  42           on supported PSERIES platforms.
  43           Provides: /sys/devices/system/cpu/pseries_(de)activation_hint_list
  44           and /sys/devices/system/cpu/cpuN/pseries_(de)activation_hint
  45
  46 config SCANLOG
  47         tristate "Scanlog dump interface"
  48         depends on RTAS_PROC && PPC_PSERIES
  49
  50 config LPARCFG
  51         bool "LPAR Configuration Data"
  52         depends on PPC_PSERIES || PPC_ISERIES
  53         help
  54         Provide system capacity information via human readable
  55         <key word>=<value> pairs through a /proc/ppc64/lparcfg interface.
  56
  57 config PPC_PSERIES_DEBUG
  58         depends on PPC_PSERIES && PPC_EARLY_DEBUG
  59         bool "Enable extra debug logging in platforms/pseries"
  60         help
  61           Say Y here if you want the pseries core to produce a bunch of
  62           debug messages to the system log. Select this if you are having a
  63           problem with the pseries core and want to see more of what is
  64           going on. This does not enable debugging in lpar.c, which must
  65           be manually done due to its verbosity.
  66         default y
  67
  68 config PPC_SMLPAR
  69         bool "Support for shared-memory logical partitions"
  70         depends on PPC_PSERIES
  71         select LPARCFG
  72         default n
  73         help
  74           Select this option to enable shared memory partition support.
  75           With this option a system running in an LPAR can be given more
  76           memory than physically available and will allow firmware to
  77           balance memory across many LPARs.
  78
  79 config CMM
  80         tristate "Collaborative memory management"
  81         depends on PPC_SMLPAR
  82         default y
  83         help
  84           Select this option, if you want to enable the kernel interface
  85           to reduce the memory size of the system. This is accomplished
  86           by allocating pages of memory and put them "on hold". This only
  87           makes sense for a system running in an LPAR where the unused pages
  88           will be reused for other LPARs. The interface allows firmware to
  89           balance memory across many LPARs.
  90
  91 config DTL
  92         bool "Dispatch Trace Log"
  93         depends on PPC_SPLPAR && DEBUG_FS
  94         help
  95           SPLPAR machines can log hypervisor preempt & dispatch events to a
  96           kernel buffer. Saying Y here will enable logging these events,
  97           which are accessible through a debugfs file.
  98
  99           Say N if you are unsure.