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Linux/Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_gpci

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Diff markup

Differences between /Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_gpci (Version linux-6.12-rc7) and /Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_gpci (Version linux-4.19.323)


  1 What:           /sys/bus/event_source/devices/ << 
  2 Date:           September 2020                 << 
  3 Contact:        Linux on PowerPC Developer Lis< << 
  4 Description:    Read-only. Attribute group to  << 
  5                 that go into perf_event_attr.c << 
  6                 (See ABI/testing/sysfs-bus-eve << 
  7                                                << 
  8                 Each attribute under this grou << 
  9                 perf_event_attr.config. All su << 
 10                 below::                        << 
 11                                                << 
 12                                 counter_info_v << 
 13                                 length  = "con << 
 14                                 partition_id   << 
 15                                 request = "con << 
 16                                 sibling_part_i << 
 17                                 hw_chip_id = " << 
 18                                 offset = "conf << 
 19                                 phys_processor << 
 20                                 secondary_inde << 
 21                                 starting_index << 
 22                                                << 
 23                 For example::                  << 
 24                                                << 
 25                   processor_core_utilization_i << 
 26                                         phys_p << 
 27                                         length << 
 28                                                << 
 29                 In this event, '?' after phys_ << 
 30                 this value will be provided by << 
 31                                                << 
 32 What:           /sys/bus/event_source/devices/      1 What:           /sys/bus/event_source/devices/hv_gpci/interface/collect_privileged
 33 Date:           February 2014                       2 Date:           February 2014
 34 Contact:        Linux on PowerPC Developer Lis<      3 Contact:        Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org>
 35 Description:                                        4 Description:
 36                 '0' if the hypervisor is confi      5                 '0' if the hypervisor is configured to forbid access to event
 37                 counters being accumulated by       6                 counters being accumulated by other guests and to physical
 38                 domain event counters.              7                 domain event counters.
 39                                                << 
 40                 '1' if that access is allowed.      8                 '1' if that access is allowed.
 41                                                     9 
 42 What:           /sys/bus/event_source/devices/     10 What:           /sys/bus/event_source/devices/hv_gpci/interface/ga
 43 Date:           February 2014                      11 Date:           February 2014
 44 Contact:        Linux on PowerPC Developer Lis<     12 Contact:        Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org>
 45 Description:                                       13 Description:
 46                 0 or 1. Indicates whether we h     14                 0 or 1. Indicates whether we have access to "GA" events (listed
 47                 in arch/powerpc/perf/hv-gpci.h     15                 in arch/powerpc/perf/hv-gpci.h).
 48                                                    16 
 49 What:           /sys/bus/event_source/devices/     17 What:           /sys/bus/event_source/devices/hv_gpci/interface/expanded
 50 Date:           February 2014                      18 Date:           February 2014
 51 Contact:        Linux on PowerPC Developer Lis<     19 Contact:        Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org>
 52 Description:                                       20 Description:
 53                 0 or 1. Indicates whether we h     21                 0 or 1. Indicates whether we have access to "EXPANDED" events (listed
 54                 in arch/powerpc/perf/hv-gpci.h     22                 in arch/powerpc/perf/hv-gpci.h).
 55                                                    23 
 56 What:           /sys/bus/event_source/devices/     24 What:           /sys/bus/event_source/devices/hv_gpci/interface/lab
 57 Date:           February 2014                      25 Date:           February 2014
 58 Contact:        Linux on PowerPC Developer Lis<     26 Contact:        Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org>
 59 Description:                                       27 Description:
 60                 0 or 1. Indicates whether we h     28                 0 or 1. Indicates whether we have access to "LAB" events (listed
 61                 in arch/powerpc/perf/hv-gpci.h     29                 in arch/powerpc/perf/hv-gpci.h).
 62                                                    30 
 63 What:           /sys/bus/event_source/devices/     31 What:           /sys/bus/event_source/devices/hv_gpci/interface/version
 64 Date:           February 2014                      32 Date:           February 2014
 65 Contact:        Linux on PowerPC Developer Lis<     33 Contact:        Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org>
 66 Description:                                       34 Description:
 67                 A number indicating the versio     35                 A number indicating the version of the gpci interface that the
 68                 hypervisor reports supporting.     36                 hypervisor reports supporting.
 69                                                    37 
 70 What:           /sys/bus/event_source/devices/     38 What:           /sys/bus/event_source/devices/hv_gpci/interface/kernel_version
 71 Date:           February 2014                      39 Date:           February 2014
 72 Contact:        Linux on PowerPC Developer Lis<     40 Contact:        Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org>
 73 Description:                                       41 Description:
 74                 A number indicating the latest     42                 A number indicating the latest version of the gpci interface
 75                 that the kernel is aware of.       43                 that the kernel is aware of.
 76                                                << 
 77 What:           /sys/devices/hv_gpci/cpumask   << 
 78 Date:           October 2020                   << 
 79 Contact:        Linux on PowerPC Developer Lis< << 
 80 Description:    read only                      << 
 81                 This sysfs file exposes the cp << 
 82                 HCALLs to retrieve hv-gpci pmu << 
 83                                                << 
 84 What:           /sys/devices/hv_gpci/interface << 
 85 Date:           July 2023                      << 
 86 Contact:        Linux on PowerPC Developer Lis< << 
 87 Description:    admin read only                << 
 88                 This sysfs file exposes the sy << 
 89                 H_GET_PERF_COUNTER_INFO. The H << 
 90                 PROCESSOR_BUS_TOPOLOGY(0xD0).  << 
 91                                                << 
 92                 * This sysfs file will be crea << 
 93                                                << 
 94                 * User needs root privileges t << 
 95                                                << 
 96                 * This sysfs file will be crea << 
 97                   "H_AUTHORITY" or "H_PARAMETE << 
 98                                                << 
 99                   HCALL with return error type << 
100                   runtime by setting "Enable P << 
101                                                << 
102                 * The end user reading this sy << 
103                   underlying platform/firmware << 
104                                                << 
105                 Possible error codes while rea << 
106                                                << 
107                 * "-EPERM" : Partition is not  << 
108                             required to set "E << 
109                                                << 
110                 * "-EIO" : Can't retrieve syst << 
111                            or because of some  << 
112                            more information.   << 
113                                                << 
114                 * "-EFBIG" : System informatio << 
115                                                << 
116 What:           /sys/devices/hv_gpci/interface << 
117 Date:           July 2023                      << 
118 Contact:        Linux on PowerPC Developer Lis< << 
119 Description:    admin read only                << 
120                 This sysfs file exposes the sy << 
121                 H_GET_PERF_COUNTER_INFO. The H << 
122                 PROCESSOR_CONFIG(0x90).        << 
123                                                << 
124                 * This sysfs file will be crea << 
125                                                << 
126                 * User needs root privileges t << 
127                                                << 
128                 * This sysfs file will be crea << 
129                   "H_AUTHORITY" or "H_PARAMETE << 
130                                                << 
131                   HCALL with return error type << 
132                   runtime by setting "Enable P << 
133                                                << 
134                 * The end user reading this sy << 
135                   underlying platform/firmware << 
136                                                << 
137                 Possible error codes while rea << 
138                                                << 
139                 * "-EPERM" : Partition is not  << 
140                             required to set "E << 
141                                                << 
142                 * "-EIO" : Can't retrieve syst << 
143                            or because of some  << 
144                            more information.   << 
145                                                << 
146                 * "-EFBIG" : System informatio << 
147                                                << 
148 What:           /sys/devices/hv_gpci/interface << 
149 Date:           July 2023                      << 
150 Contact:        Linux on PowerPC Developer Lis< << 
151 Description:    admin read only                << 
152                 This sysfs file exposes the sy << 
153                 H_GET_PERF_COUNTER_INFO. The H << 
154                 AFFINITY_DOMAIN_INFORMATION_BY << 
155                                                << 
156                 * This sysfs file will be crea << 
157                                                << 
158                 * User needs root privileges t << 
159                                                << 
160                 * This sysfs file will be crea << 
161                   "H_AUTHORITY" or "H_PARAMETE << 
162                                                << 
163                   HCALL with return error type << 
164                   runtime by setting "Enable P << 
165                                                << 
166                 * The end user reading this sy << 
167                   underlying platform/firmware << 
168                                                << 
169                 Possible error codes while rea << 
170                                                << 
171                 * "-EPERM" : Partition is not  << 
172                             required to set "E << 
173                                                << 
174                 * "-EIO" : Can't retrieve syst << 
175                            or because of some  << 
176                            more information.   << 
177                                                << 
178                 * "-EFBIG" : System informatio << 
179                                                << 
180 What:           /sys/devices/hv_gpci/interface << 
181 Date:           July 2023                      << 
182 Contact:        Linux on PowerPC Developer Lis< << 
183 Description:    admin read only                << 
184                 This sysfs file exposes the sy << 
185                 H_GET_PERF_COUNTER_INFO. The H << 
186                 AFFINITY_DOMAIN_INFORMATION_BY << 
187                                                << 
188                 * This sysfs file will be crea << 
189                                                << 
190                 * User needs root privileges t << 
191                                                << 
192                 * This sysfs file will be crea << 
193                   "H_AUTHORITY" or "H_PARAMETE << 
194                                                << 
195                   HCALL with return error type << 
196                   runtime by setting "Enable P << 
197                                                << 
198                 * The end user reading this sy << 
199                   underlying platform/firmware << 
200                                                << 
201                 Possible error codes while rea << 
202                                                << 
203                 * "-EPERM" : Partition is not  << 
204                             required to set "E << 
205                                                << 
206                 * "-EIO" : Can't retrieve syst << 
207                            or because of some  << 
208                            more information.   << 
209                                                << 
210                 * "-EFBIG" : System informatio << 
211                                                << 
212 What:           /sys/devices/hv_gpci/interface << 
213 Date:           July 2023                      << 
214 Contact:        Linux on PowerPC Developer Lis< << 
215 Description:    admin read only                << 
216                 This sysfs file exposes the sy << 
217                 H_GET_PERF_COUNTER_INFO. The H << 
218                 AFFINITY_DOMAIN_INFORMATION_BY << 
219                                                << 
220                 * This sysfs file will be crea << 
221                                                << 
222                 * User needs root privileges t << 
223                                                << 
224                 * This sysfs file will be crea << 
225                   "H_AUTHORITY" or "H_PARAMETE << 
226                                                << 
227                   HCALL with return error type << 
228                   runtime by setting "Enable P << 
229                                                << 
230                 * The end user reading this sy << 
231                   underlying platform/firmware << 
232                                                << 
233                 Possible error codes while rea << 
234                                                << 
235                 * "-EPERM" : Partition is not  << 
236                             required to set "E << 
237                                                << 
238                 * "-EIO" : Can't retrieve syst << 
239                            or because of some  << 
240                            more information.   << 
241                                                << 
242                 * "-EFBIG" : System informatio << 
                                                      

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