169 lines
5.1 KiB
Plaintext
169 lines
5.1 KiB
Plaintext
# 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 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_NATIVE
|
|
select PPC_DOORBELL
|
|
select HOTPLUG_CPU
|
|
select ARCH_RANDOM
|
|
select FORCE_SMP
|
|
select SWIOTLB
|
|
default y
|
|
|
|
config PARAVIRT_SPINLOCKS
|
|
bool
|
|
|
|
config PPC_SPLPAR
|
|
bool "Support for shared-processor logical partitions"
|
|
depends on PPC_PSERIES
|
|
select PARAVIRT_SPINLOCKS if PPC_QUEUED_SPINLOCKS
|
|
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 SCANLOG
|
|
tristate "Scanlog dump interface"
|
|
depends on RTAS_PROC && PPC_PSERIES
|
|
|
|
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 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
|
|
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".
|