1*4882a593Smuzhiyun# SPDX-License-Identifier: GPL-2.0 2*4882a593Smuzhiyunconfig PPC_PSERIES 3*4882a593Smuzhiyun depends on PPC64 && PPC_BOOK3S 4*4882a593Smuzhiyun bool "IBM pSeries & new (POWER5-based) iSeries" 5*4882a593Smuzhiyun select HAVE_PCSPKR_PLATFORM 6*4882a593Smuzhiyun select MPIC 7*4882a593Smuzhiyun select OF_DYNAMIC 8*4882a593Smuzhiyun select FORCE_PCI 9*4882a593Smuzhiyun select PCI_MSI 10*4882a593Smuzhiyun select PPC_XICS 11*4882a593Smuzhiyun select PPC_XIVE_SPAPR 12*4882a593Smuzhiyun select PPC_ICP_NATIVE 13*4882a593Smuzhiyun select PPC_ICP_HV 14*4882a593Smuzhiyun select PPC_ICS_RTAS 15*4882a593Smuzhiyun select PPC_I8259 16*4882a593Smuzhiyun select PPC_RTAS 17*4882a593Smuzhiyun select PPC_RTAS_DAEMON 18*4882a593Smuzhiyun select RTAS_ERROR_LOGGING 19*4882a593Smuzhiyun select PPC_UDBG_16550 20*4882a593Smuzhiyun select PPC_NATIVE 21*4882a593Smuzhiyun select PPC_DOORBELL 22*4882a593Smuzhiyun select HOTPLUG_CPU 23*4882a593Smuzhiyun select ARCH_RANDOM 24*4882a593Smuzhiyun select FORCE_SMP 25*4882a593Smuzhiyun select SWIOTLB 26*4882a593Smuzhiyun default y 27*4882a593Smuzhiyun 28*4882a593Smuzhiyunconfig PARAVIRT_SPINLOCKS 29*4882a593Smuzhiyun bool 30*4882a593Smuzhiyun 31*4882a593Smuzhiyunconfig PPC_SPLPAR 32*4882a593Smuzhiyun bool "Support for shared-processor logical partitions" 33*4882a593Smuzhiyun depends on PPC_PSERIES 34*4882a593Smuzhiyun select PARAVIRT_SPINLOCKS if PPC_QUEUED_SPINLOCKS 35*4882a593Smuzhiyun default y 36*4882a593Smuzhiyun help 37*4882a593Smuzhiyun Enabling this option will make the kernel run more efficiently 38*4882a593Smuzhiyun on logically-partitioned pSeries systems which use shared 39*4882a593Smuzhiyun processors, that is, which share physical processors between 40*4882a593Smuzhiyun two or more partitions. 41*4882a593Smuzhiyun 42*4882a593Smuzhiyun Say Y if you are unsure. 43*4882a593Smuzhiyun 44*4882a593Smuzhiyunconfig DTL 45*4882a593Smuzhiyun bool "Dispatch Trace Log" 46*4882a593Smuzhiyun depends on PPC_SPLPAR && DEBUG_FS 47*4882a593Smuzhiyun help 48*4882a593Smuzhiyun SPLPAR machines can log hypervisor preempt & dispatch events to a 49*4882a593Smuzhiyun kernel buffer. Saying Y here will enable logging these events, 50*4882a593Smuzhiyun which are accessible through a debugfs file. 51*4882a593Smuzhiyun 52*4882a593Smuzhiyun Say N if you are unsure. 53*4882a593Smuzhiyun 54*4882a593Smuzhiyunconfig PSERIES_ENERGY 55*4882a593Smuzhiyun tristate "pSeries energy management capabilities driver" 56*4882a593Smuzhiyun depends on PPC_PSERIES 57*4882a593Smuzhiyun default y 58*4882a593Smuzhiyun help 59*4882a593Smuzhiyun Provides interface to platform energy management capabilities 60*4882a593Smuzhiyun on supported PSERIES platforms. 61*4882a593Smuzhiyun Provides: /sys/devices/system/cpu/pseries_(de)activation_hint_list 62*4882a593Smuzhiyun and /sys/devices/system/cpu/cpuN/pseries_(de)activation_hint 63*4882a593Smuzhiyun 64*4882a593Smuzhiyunconfig SCANLOG 65*4882a593Smuzhiyun tristate "Scanlog dump interface" 66*4882a593Smuzhiyun depends on RTAS_PROC && PPC_PSERIES 67*4882a593Smuzhiyun 68*4882a593Smuzhiyunconfig IO_EVENT_IRQ 69*4882a593Smuzhiyun bool "IO Event Interrupt support" 70*4882a593Smuzhiyun depends on PPC_PSERIES 71*4882a593Smuzhiyun default y 72*4882a593Smuzhiyun help 73*4882a593Smuzhiyun Select this option, if you want to enable support for IO Event 74*4882a593Smuzhiyun interrupts. IO event interrupt is a mechanism provided by RTAS 75*4882a593Smuzhiyun to return information about hardware error and non-error events 76*4882a593Smuzhiyun which may need OS attention. RTAS returns events for multiple 77*4882a593Smuzhiyun event types and scopes. Device drivers can register their handlers 78*4882a593Smuzhiyun to receive events. 79*4882a593Smuzhiyun 80*4882a593Smuzhiyun This option will only enable the IO event platform code. You 81*4882a593Smuzhiyun will still need to enable or compile the actual drivers 82*4882a593Smuzhiyun that use this infrastructure to handle IO event interrupts. 83*4882a593Smuzhiyun 84*4882a593Smuzhiyun Say Y if you are unsure. 85*4882a593Smuzhiyun 86*4882a593Smuzhiyunconfig LPARCFG 87*4882a593Smuzhiyun bool "LPAR Configuration Data" 88*4882a593Smuzhiyun depends on PPC_PSERIES 89*4882a593Smuzhiyun help 90*4882a593Smuzhiyun Provide system capacity information via human readable 91*4882a593Smuzhiyun <key word>=<value> pairs through a /proc/ppc64/lparcfg interface. 92*4882a593Smuzhiyun 93*4882a593Smuzhiyunconfig PPC_PSERIES_DEBUG 94*4882a593Smuzhiyun depends on PPC_PSERIES && PPC_EARLY_DEBUG 95*4882a593Smuzhiyun bool "Enable extra debug logging in platforms/pseries" 96*4882a593Smuzhiyun default y 97*4882a593Smuzhiyun help 98*4882a593Smuzhiyun Say Y here if you want the pseries core to produce a bunch of 99*4882a593Smuzhiyun debug messages to the system log. Select this if you are having a 100*4882a593Smuzhiyun problem with the pseries core and want to see more of what is 101*4882a593Smuzhiyun going on. This does not enable debugging in lpar.c, which must 102*4882a593Smuzhiyun be manually done due to its verbosity. 103*4882a593Smuzhiyun 104*4882a593Smuzhiyunconfig PPC_SMLPAR 105*4882a593Smuzhiyun bool "Support for shared-memory logical partitions" 106*4882a593Smuzhiyun depends on PPC_PSERIES 107*4882a593Smuzhiyun select LPARCFG 108*4882a593Smuzhiyun help 109*4882a593Smuzhiyun Select this option to enable shared memory partition support. 110*4882a593Smuzhiyun With this option a system running in an LPAR can be given more 111*4882a593Smuzhiyun memory than physically available and will allow firmware to 112*4882a593Smuzhiyun balance memory across many LPARs. 113*4882a593Smuzhiyun 114*4882a593Smuzhiyunconfig CMM 115*4882a593Smuzhiyun tristate "Collaborative memory management" 116*4882a593Smuzhiyun depends on PPC_SMLPAR 117*4882a593Smuzhiyun select MEMORY_BALLOON 118*4882a593Smuzhiyun default y 119*4882a593Smuzhiyun help 120*4882a593Smuzhiyun Select this option, if you want to enable the kernel interface 121*4882a593Smuzhiyun to reduce the memory size of the system. This is accomplished 122*4882a593Smuzhiyun by allocating pages of memory and put them "on hold". This only 123*4882a593Smuzhiyun makes sense for a system running in an LPAR where the unused pages 124*4882a593Smuzhiyun will be reused for other LPARs. The interface allows firmware to 125*4882a593Smuzhiyun balance memory across many LPARs. 126*4882a593Smuzhiyun 127*4882a593Smuzhiyunconfig HV_PERF_CTRS 128*4882a593Smuzhiyun bool "Hypervisor supplied PMU events (24x7 & GPCI)" 129*4882a593Smuzhiyun default y 130*4882a593Smuzhiyun depends on PERF_EVENTS && PPC_PSERIES 131*4882a593Smuzhiyun help 132*4882a593Smuzhiyun Enable access to hypervisor supplied counters in perf. Currently, 133*4882a593Smuzhiyun this enables code that uses the hcall GetPerfCounterInfo and 24x7 134*4882a593Smuzhiyun interfaces to retrieve counters. GPCI exists on Power 6 and later 135*4882a593Smuzhiyun systems. 24x7 is available on Power 8 and later systems. 136*4882a593Smuzhiyun 137*4882a593Smuzhiyun If unsure, select Y. 138*4882a593Smuzhiyun 139*4882a593Smuzhiyunconfig IBMVIO 140*4882a593Smuzhiyun depends on PPC_PSERIES 141*4882a593Smuzhiyun bool 142*4882a593Smuzhiyun default y 143*4882a593Smuzhiyun 144*4882a593Smuzhiyunconfig IBMEBUS 145*4882a593Smuzhiyun depends on PPC_PSERIES && !CPU_LITTLE_ENDIAN 146*4882a593Smuzhiyun bool "Support for GX bus based adapters" 147*4882a593Smuzhiyun help 148*4882a593Smuzhiyun Bus device driver for GX bus based adapters. 149*4882a593Smuzhiyun 150*4882a593Smuzhiyunconfig PAPR_SCM 151*4882a593Smuzhiyun depends on PPC_PSERIES && MEMORY_HOTPLUG && LIBNVDIMM 152*4882a593Smuzhiyun tristate "Support for the PAPR Storage Class Memory interface" 153*4882a593Smuzhiyun help 154*4882a593Smuzhiyun Enable access to hypervisor provided storage class memory. 155*4882a593Smuzhiyun 156*4882a593Smuzhiyunconfig PPC_SVM 157*4882a593Smuzhiyun bool "Secure virtual machine (SVM) support for POWER" 158*4882a593Smuzhiyun depends on PPC_PSERIES 159*4882a593Smuzhiyun select SWIOTLB 160*4882a593Smuzhiyun select ARCH_HAS_MEM_ENCRYPT 161*4882a593Smuzhiyun select ARCH_HAS_FORCE_DMA_UNENCRYPTED 162*4882a593Smuzhiyun help 163*4882a593Smuzhiyun There are certain POWER platforms which support secure guests using 164*4882a593Smuzhiyun the Protected Execution Facility, with the help of an Ultravisor 165*4882a593Smuzhiyun executing below the hypervisor layer. This enables support for 166*4882a593Smuzhiyun those guests. 167*4882a593Smuzhiyun 168*4882a593Smuzhiyun If unsure, say "N". 169