summaryrefslogtreecommitdiffstats
path: root/arch/powerpc/platforms/pseries/Kconfig
diff options
context:
space:
mode:
Diffstat (limited to 'arch/powerpc/platforms/pseries/Kconfig')
-rw-r--r--arch/powerpc/platforms/pseries/Kconfig186
1 files changed, 186 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/pseries/Kconfig b/arch/powerpc/platforms/pseries/Kconfig
new file mode 100644
index 000000000..4ebf2ef28
--- /dev/null
+++ b/arch/powerpc/platforms/pseries/Kconfig
@@ -0,0 +1,186 @@
+# SPDX-License-Identifier: GPL-2.0
+config PPC_PSERIES
+ depends on PPC64 && PPC_BOOK3S
+ bool "IBM pSeries & new (POWER5-based) iSeries"
+ select HAVE_PCSPKR_PLATFORM
+ select MPIC
+ select OF_DYNAMIC
+ select FORCE_PCI
+ select PCI_MSI
+ select GENERIC_ALLOCATOR
+ select PPC_XICS
+ select PPC_XIVE_SPAPR
+ select PPC_ICP_NATIVE
+ select PPC_ICP_HV
+ select PPC_ICS_RTAS
+ select PPC_I8259
+ select PPC_RTAS
+ select PPC_RTAS_DAEMON
+ select RTAS_ERROR_LOGGING
+ select PPC_UDBG_16550
+ select PPC_DOORBELL
+ select HOTPLUG_CPU
+ select FORCE_SMP
+ select SWIOTLB
+ select ARCH_SUPPORTS_PER_VMA_LOCK
+ default y
+
+config PARAVIRT
+ bool
+
+config PARAVIRT_SPINLOCKS
+ bool
+
+config PARAVIRT_TIME_ACCOUNTING
+ select PARAVIRT
+ bool
+
+config PPC_SPLPAR
+ bool "Support for shared-processor logical partitions"
+ depends on PPC_PSERIES
+ select PARAVIRT_SPINLOCKS if PPC_QUEUED_SPINLOCKS
+ select PARAVIRT_TIME_ACCOUNTING if VIRT_CPU_ACCOUNTING_GEN
+ default y
+ help
+ Enabling this option will make the kernel run more efficiently
+ on logically-partitioned pSeries systems which use shared
+ processors, that is, which share physical processors between
+ two or more partitions.
+
+ Say Y if you are unsure.
+
+config DTL
+ bool "Dispatch Trace Log"
+ depends on PPC_SPLPAR && DEBUG_FS
+ help
+ SPLPAR machines can log hypervisor preempt & dispatch events to a
+ kernel buffer. Saying Y here will enable logging these events,
+ which are accessible through a debugfs file.
+
+ Say N if you are unsure.
+
+config PSERIES_ENERGY
+ tristate "pSeries energy management capabilities driver"
+ depends on PPC_PSERIES
+ default y
+ help
+ Provides interface to platform energy management capabilities
+ on supported PSERIES platforms.
+ Provides: /sys/devices/system/cpu/pseries_(de)activation_hint_list
+ and /sys/devices/system/cpu/cpuN/pseries_(de)activation_hint
+
+config IO_EVENT_IRQ
+ bool "IO Event Interrupt support"
+ depends on PPC_PSERIES
+ default y
+ help
+ Select this option, if you want to enable support for IO Event
+ interrupts. IO event interrupt is a mechanism provided by RTAS
+ to return information about hardware error and non-error events
+ which may need OS attention. RTAS returns events for multiple
+ event types and scopes. Device drivers can register their handlers
+ to receive events.
+
+ This option will only enable the IO event platform code. You
+ will still need to enable or compile the actual drivers
+ that use this infrastructure to handle IO event interrupts.
+
+ Say Y if you are unsure.
+
+config LPARCFG
+ bool "LPAR Configuration Data"
+ depends on PPC_PSERIES
+ help
+ Provide system capacity information via human readable
+ <key word>=<value> pairs through a /proc/ppc64/lparcfg interface.
+
+config PPC_PSERIES_DEBUG
+ depends on PPC_PSERIES && PPC_EARLY_DEBUG
+ bool "Enable extra debug logging in platforms/pseries"
+ default y
+ help
+ Say Y here if you want the pseries core to produce a bunch of
+ debug messages to the system log. Select this if you are having a
+ problem with the pseries core and want to see more of what is
+ going on. This does not enable debugging in lpar.c, which must
+ be manually done due to its verbosity.
+
+config PPC_SMLPAR
+ bool "Support for shared-memory logical partitions"
+ depends on PPC_PSERIES
+ select LPARCFG
+ help
+ Select this option to enable shared memory partition support.
+ With this option a system running in an LPAR can be given more
+ memory than physically available and will allow firmware to
+ balance memory across many LPARs.
+
+config CMM
+ tristate "Collaborative memory management"
+ depends on PPC_SMLPAR
+ select MEMORY_BALLOON
+ default y
+ help
+ Select this option, if you want to enable the kernel interface
+ to reduce the memory size of the system. This is accomplished
+ by allocating pages of memory and put them "on hold". This only
+ makes sense for a system running in an LPAR where the unused pages
+ will be reused for other LPARs. The interface allows firmware to
+ balance memory across many LPARs.
+
+config HV_PERF_CTRS
+ bool "Hypervisor supplied PMU events (24x7 & GPCI)"
+ default y
+ depends on PERF_EVENTS && PPC_PSERIES
+ help
+ Enable access to hypervisor supplied counters in perf. Currently,
+ this enables code that uses the hcall GetPerfCounterInfo and 24x7
+ interfaces to retrieve counters. GPCI exists on Power 6 and later
+ systems. 24x7 is available on Power 8 and later systems.
+
+ If unsure, select Y.
+
+config IBMVIO
+ depends on PPC_PSERIES
+ bool
+ default y
+
+config IBMEBUS
+ depends on PPC_PSERIES && !CPU_LITTLE_ENDIAN
+ bool "Support for GX bus based adapters"
+ help
+ Bus device driver for GX bus based adapters.
+
+config PSERIES_PLPKS
+ depends on PPC_PSERIES
+ select NLS
+ bool
+ # PowerVM provides an isolated Platform Keystore (PKS) storage
+ # allocation for each LPAR with individually managed access
+ # controls to store sensitive information securely. It can be
+ # used to store asymmetric public keys or secrets as required
+ # by different usecases.
+ #
+ # This option is selected by in-kernel consumers that require
+ # access to the PKS.
+
+config PAPR_SCM
+ depends on PPC_PSERIES && MEMORY_HOTPLUG && LIBNVDIMM
+ tristate "Support for the PAPR Storage Class Memory interface"
+ help
+ Enable access to hypervisor provided storage class memory.
+
+config PPC_SVM
+ bool "Secure virtual machine (SVM) support for POWER"
+ depends on PPC_PSERIES
+ select SWIOTLB
+ select ARCH_HAS_MEM_ENCRYPT
+ select ARCH_HAS_FORCE_DMA_UNENCRYPTED
+ select ARCH_HAS_CC_PLATFORM
+ help
+ There are certain POWER platforms which support secure guests using
+ the Protected Execution Facility, with the help of an Ultravisor
+ executing below the hypervisor layer. This enables support for
+ those guests.
+
+ If unsure, say "N".