/arch/powerpc/platforms/pseries/Kconfig

 1config 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 EMBEDDED
14	default y
15
16config 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
26config EEH
27	bool "PCI Extended Error Handling (EEH)" if EMBEDDED
28	depends on PPC_PSERIES && PCI
29	default y if !EMBEDDED
30
31config PSERIES_MSI
32       bool
33       depends on PCI_MSI && EEH
34       default y
35
36config SCANLOG
37	tristate "Scanlog dump interface"
38	depends on RTAS_PROC && PPC_PSERIES
39
40config LPARCFG
41	bool "LPAR Configuration Data"
42	depends on PPC_PSERIES || PPC_ISERIES
43	help
44	Provide system capacity information via human readable
45	<key word>=<value> pairs through a /proc/ppc64/lparcfg interface.
46
47config PPC_PSERIES_DEBUG
48	depends on PPC_PSERIES && PPC_EARLY_DEBUG
49	bool "Enable extra debug logging in platforms/pseries"
50	default y
51
52config PPC_SMLPAR
53	bool "Support for shared-memory logical partitions"
54	depends on PPC_PSERIES
55	select LPARCFG
56	default n
57	help
58	  Select this option to enable shared memory partition support.
59	  With this option a system running in an LPAR can be given more
60	  memory than physically available and will allow firmware to
61	  balance memory across many LPARs.
62
63config CMM
64	tristate "Collaborative memory management"
65	depends on PPC_SMLPAR
66	default y
67	help
68	  Select this option, if you want to enable the kernel interface
69	  to reduce the memory size of the system. This is accomplished
70	  by allocating pages of memory and put them "on hold". This only
71	  makes sense for a system running in an LPAR where the unused pages
72	  will be reused for other LPARs. The interface allows firmware to
73	  balance memory across many LPARs.
74
75config DTL
76	bool "Dispatch Trace Log"
77	depends on PPC_SPLPAR && DEBUG_FS
78	help
79	  SPLPAR machines can log hypervisor preempt & dispatch events to a
80	  kernel buffer. Saying Y here will enable logging these events,
81	  which are accessible through a debugfs file.
82
83	  Say N if you are unsure.