arch/powerpc/platforms/pseries/Kconfig

Source file repositories/reference/linux-study-clean/arch/powerpc/platforms/pseries/Kconfig

File Facts

System
Linux kernel
Corpus path
arch/powerpc/platforms/pseries/Kconfig
Extension
[no extension]
Size
6753 bytes
Lines
218
Domain
Architecture Layer
Bucket
arch/powerpc
Inferred role
Architecture Layer: build/configuration rule
Status
atlas-only

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

# 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 IRQ_MSI_LIB
	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
	select PPC_RADIX_BROADCAST_TLBIE if PPC_RADIX_MMU
	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.

Annotation

Implementation Notes