1
2config PPC_PSERIES
3 depends on PPC64 && PPC_BOOK3S
4 bool "IBM pSeries & new (POWER5-based) iSeries"
5 select HAVE_PCSPKR_PLATFORM
6 select MPIC
7 select OF_DYNAMIC
8 select FORCE_PCI
9 select PCI_MSI
10 select PPC_XICS
11 select PPC_XIVE_SPAPR
12 select PPC_ICP_NATIVE
13 select PPC_ICP_HV
14 select PPC_ICS_RTAS
15 select PPC_I8259
16 select PPC_RTAS
17 select PPC_RTAS_DAEMON
18 select RTAS_ERROR_LOGGING
19 select PPC_UDBG_16550
20 select PPC_NATIVE
21 select PPC_DOORBELL
22 select HOTPLUG_CPU
23 select ARCH_RANDOM
24 select PPC_DOORBELL
25 select FORCE_SMP
26 select SWIOTLB
27 default y
28
29config PPC_SPLPAR
30 depends on PPC_PSERIES
31 bool "Support for shared-processor logical partitions"
32 help
33 Enabling this option will make the kernel run more efficiently
34 on logically-partitioned pSeries systems which use shared
35 processors, that is, which share physical processors between
36 two or more partitions.
37
38config DTL
39 bool "Dispatch Trace Log"
40 depends on PPC_SPLPAR && DEBUG_FS
41 help
42 SPLPAR machines can log hypervisor preempt & dispatch events to a
43 kernel buffer. Saying Y here will enable logging these events,
44 which are accessible through a debugfs file.
45
46 Say N if you are unsure.
47
48config PSERIES_ENERGY
49 tristate "pSeries energy management capabilities driver"
50 depends on PPC_PSERIES
51 default y
52 help
53 Provides interface to platform energy management capabilities
54 on supported PSERIES platforms.
55 Provides: /sys/devices/system/cpu/pseries_(de)activation_hint_list
56 and /sys/devices/system/cpu/cpuN/pseries_(de)activation_hint
57
58config SCANLOG
59 tristate "Scanlog dump interface"
60 depends on RTAS_PROC && PPC_PSERIES
61
62config IO_EVENT_IRQ
63 bool "IO Event Interrupt support"
64 depends on PPC_PSERIES
65 default y
66 help
67 Select this option, if you want to enable support for IO Event
68 interrupts. IO event interrupt is a mechanism provided by RTAS
69 to return information about hardware error and non-error events
70 which may need OS attention. RTAS returns events for multiple
71 event types and scopes. Device drivers can register their handlers
72 to receive events.
73
74 This option will only enable the IO event platform code. You
75 will still need to enable or compile the actual drivers
76 that use this infrastructure to handle IO event interrupts.
77
78 Say Y if you are unsure.
79
80config LPARCFG
81 bool "LPAR Configuration Data"
82 depends on PPC_PSERIES
83 help
84 Provide system capacity information via human readable
85 <key word>=<value> pairs through a /proc/ppc64/lparcfg interface.
86
87config PPC_PSERIES_DEBUG
88 depends on PPC_PSERIES && PPC_EARLY_DEBUG
89 bool "Enable extra debug logging in platforms/pseries"
90 default y
91 help
92 Say Y here if you want the pseries core to produce a bunch of
93 debug messages to the system log. Select this if you are having a
94 problem with the pseries core and want to see more of what is
95 going on. This does not enable debugging in lpar.c, which must
96 be manually done due to its verbosity.
97
98config PPC_SMLPAR
99 bool "Support for shared-memory logical partitions"
100 depends on PPC_PSERIES
101 select LPARCFG
102 help
103 Select this option to enable shared memory partition support.
104 With this option a system running in an LPAR can be given more
105 memory than physically available and will allow firmware to
106 balance memory across many LPARs.
107
108config CMM
109 tristate "Collaborative memory management"
110 depends on PPC_SMLPAR
111 select MEMORY_BALLOON
112 default y
113 help
114 Select this option, if you want to enable the kernel interface
115 to reduce the memory size of the system. This is accomplished
116 by allocating pages of memory and put them "on hold". This only
117 makes sense for a system running in an LPAR where the unused pages
118 will be reused for other LPARs. The interface allows firmware to
119 balance memory across many LPARs.
120
121config HV_PERF_CTRS
122 bool "Hypervisor supplied PMU events (24x7 & GPCI)"
123 default y
124 depends on PERF_EVENTS && PPC_PSERIES
125 help
126 Enable access to hypervisor supplied counters in perf. Currently,
127 this enables code that uses the hcall GetPerfCounterInfo and 24x7
128 interfaces to retrieve counters. GPCI exists on Power 6 and later
129 systems. 24x7 is available on Power 8 and later systems.
130
131 If unsure, select Y.
132
133config IBMVIO
134 depends on PPC_PSERIES
135 bool
136 default y
137
138config IBMEBUS
139 depends on PPC_PSERIES && !CPU_LITTLE_ENDIAN
140 bool "Support for GX bus based adapters"
141 help
142 Bus device driver for GX bus based adapters.
143
144config PAPR_SCM
145 depends on PPC_PSERIES && MEMORY_HOTPLUG && LIBNVDIMM
146 tristate "Support for the PAPR Storage Class Memory interface"
147 help
148 Enable access to hypervisor provided storage class memory.
149
150config PPC_SVM
151 bool "Secure virtual machine (SVM) support for POWER"
152 depends on PPC_PSERIES
153 select SWIOTLB
154 select ARCH_HAS_MEM_ENCRYPT
155 select ARCH_HAS_FORCE_DMA_UNENCRYPTED
156 help
157 There are certain POWER platforms which support secure guests using
158 the Protected Execution Facility, with the help of an Ultravisor
159 executing below the hypervisor layer. This enables support for
160 those guests.
161
162 If unsure, say "N".
163
