# SPDX-License-Identifier: GPL-2.0
config [31mCONFIG_PPC_PSERIES[0m
depends on [31mCONFIG_PPC64[0m && [31mCONFIG_PPC_BOOK3S[0m
bool "IBM pSeries & new (POWER5-based) iSeries"
select [31mCONFIG_HAVE_PCSPKR_PLATFORM[0m
select [31mCONFIG_MPIC[0m
select [31mCONFIG_OF_DYNAMIC[0m
select [31mCONFIG_FORCE_PCI[0m
select [31mCONFIG_PCI_MSI[0m
select [31mCONFIG_PPC_XICS[0m
select [31mCONFIG_PPC_XIVE_SPAPR[0m
select [31mCONFIG_PPC_ICP_NATIVE[0m
select [31mCONFIG_PPC_ICP_HV[0m
select [31mCONFIG_PPC_ICS_RTAS[0m
select [31mCONFIG_PPC_I8259[0m
select [31mCONFIG_PPC_RTAS[0m
select [31mCONFIG_PPC_RTAS_DAEMON[0m
select [31mCONFIG_RTAS_ERROR_LOGGING[0m
select [31mCONFIG_PPC_UDBG_16550[0m
select [31mCONFIG_PPC_NATIVE[0m
select [31mCONFIG_PPC_DOORBELL[0m
select [31mCONFIG_HOTPLUG_CPU[0m
select [31mCONFIG_ARCH_RANDOM[0m
select [31mCONFIG_PPC_DOORBELL[0m
select [31mCONFIG_FORCE_SMP[0m
select [31mCONFIG_SWIOTLB[0m
default y
config [31mCONFIG_PPC_SPLPAR[0m
depends on [31mCONFIG_PPC_PSERIES[0m
bool "Support for shared-processor logical partitions"
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.
config [31mCONFIG_DTL[0m
bool "Dispatch Trace Log"
depends on [31mCONFIG_PPC_SPLPAR[0m && [31mCONFIG_DEBUG_FS[0m
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 [31mCONFIG_PSERIES_ENERGY[0m
tristate "pSeries energy management capabilities driver"
depends on [31mCONFIG_PPC_PSERIES[0m
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 [31mCONFIG_SCANLOG[0m
tristate "Scanlog dump interface"
depends on [31mCONFIG_RTAS_PROC[0m && [31mCONFIG_PPC_PSERIES[0m
config [31mCONFIG_IO_EVENT_IRQ[0m
bool "IO Event Interrupt support"
depends on [31mCONFIG_PPC_PSERIES[0m
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 [31mCONFIG_LPARCFG[0m
bool "LPAR Configuration Data"
depends on [31mCONFIG_PPC_PSERIES[0m
help
Provide system capacity information via human readable
<key word>=<value> pairs through a /proc/ppc64/lparcfg interface.
config [31mCONFIG_PPC_PSERIES_DEBUG[0m
depends on [31mCONFIG_PPC_PSERIES[0m && [31mCONFIG_PPC_EARLY_DEBUG[0m
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 [31mCONFIG_PPC_SMLPAR[0m
bool "Support for shared-memory logical partitions"
depends on [31mCONFIG_PPC_PSERIES[0m
select [31mCONFIG_LPARCFG[0m
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 [31mCONFIG_CMM[0m
tristate "Collaborative memory management"
depends on [31mCONFIG_PPC_SMLPAR[0m
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 [31mCONFIG_HV_PERF_CTRS[0m
bool "Hypervisor supplied PMU events (24x7 & GPCI)"
default y
depends on [31mCONFIG_PERF_EVENTS[0m && [31mCONFIG_PPC_PSERIES[0m
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 [31mCONFIG_IBMVIO[0m
depends on [31mCONFIG_PPC_PSERIES[0m
bool
default y
config [31mCONFIG_IBMEBUS[0m
depends on [31mCONFIG_PPC_PSERIES[0m && ![31mCONFIG_CPU_LITTLE_ENDIAN[0m
bool "Support for GX bus based adapters"
help
Bus device driver for GX bus based adapters.
config [31mCONFIG_PAPR_SCM[0m
depends on [31mCONFIG_PPC_PSERIES[0m && [31mCONFIG_MEMORY_HOTPLUG[0m && [31mCONFIG_LIBNVDIMM[0m
tristate "Support for the PAPR Storage Class Memory interface"
help
Enable access to hypervisor provided storage class memory.
config [31mCONFIG_PPC_SVM[0m
bool "Secure virtual machine (SVM) support for POWER"
depends on [31mCONFIG_PPC_PSERIES[0m
select [31mCONFIG_SWIOTLB[0m
select [31mCONFIG_ARCH_HAS_MEM_ENCRYPT[0m
select [31mCONFIG_ARCH_HAS_FORCE_DMA_UNENCRYPTED[0m
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".