.. _opal-api:

======================
OPAL API Documentation
======================

The OPAL API is the interface between an Operating System and OPAL.

+---------------------------------------------+--------------+------------------------+----------+-----------------+
| Name                                        | API Token ID | Introduced             | Required | Notes           |
|                                             |              |                        | as of    |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_TEST`                            |   0          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_CONSOLE_WRITE`                   |   1          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_CONSOLE_READ`                    |   2          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_RTC_READ`                        |   3          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_RTC_WRITE`                       |   4          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_CEC_POWER_DOWN`                  |   5          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_CEC_REBOOT`                      |   6          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_READ_NVRAM`                      |   7          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_WRITE_NVRAM`                     |   8          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_HANDLE_INTERRUPT`                |   9          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_POLL_EVENTS`                     |  10          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_PCI_SET_HUB_TCE_MEMORY`          |  11          | N/A                    |          | Was POWER7      |
|                                             |              | Present only on        |          | p5ioc specific. |
|                                             |              | internal systems.      |          | No use outside  |
|                                             |              |                        |          | IBM development |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_PCI_SET_PHB_TCE_MEMORY`          |  12          | N/A                    |          | Was POWER7      |
|                                             |              | Present only on        |          | p5ioc specific. |
|                                             |              | internal systems.      |          | No use outside  |
|                                             |              |                        |          | IBM development |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_PCI_CONFIG_READ_BYTE`            |  13          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_PCI_CONFIG_READ_HALF_WORD`       |  14          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_PCI_CONFIG_READ_WORD`            |  15          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_PCI_CONFIG_WRITE_BYTE`           |  16          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_PCI_CONFIG_WRITE_HALF_WORD`      |  17          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_PCI_CONFIG_WRITE_WORD`           |  18          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_SET_XIVE`                        |  19          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_GET_XIVE`                        |  20          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_GET_COMPLETION_TOKEN_STATUS`     |  21          | Never                  |          | Never           |
|                                             |              |                        |          | Implemented     |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_REGISTER_OPAL_EXCEPTION_HANDLER` |  22          | v1.0 (Initial Release) |          | Removed         |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_PCI_EEH_FREEZE_STATUS`           |  23          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_PCI_SHPC`                        |  24          | Never                  | POWER8   | Never           |
|                                             |              |                        |          | Implemented     |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_CONSOLE_WRITE_BUFFER_SPACE`      |  25          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_PCI_EEH_FREEZE_CLEAR`            |  26          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_PCI_PHB_MMIO_ENABLE`             |  27          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_PCI_SET_PHB_MEM_WINDOW`          |  28          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_PCI_MAP_PE_MMIO_WINDOW`          |  29          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_PCI_SET_PHB_TABLE_MEMORY`        |  30          | Never                  | POWER8   | Never used or   |
|                                             |              |                        |          | Implemented     |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_PCI_SET_PE`                      |  31          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_PCI_SET_PELTV`                   |  32          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_PCI_GET_XIVE_REISSUE`            |  35          | Never                  |          | Never used or   |
|                                             |              |                        |          | Implemented     |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_PCI_SET_XIVE_REISSUE`            |  36          | Never                  |          | Never used or   |
|                                             |              |                        |          | Implemented     |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_PCI_SET_XIVE_PE`                 |  37          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_GET_XIVE_SOURCE`                 |  38          | v1.0 (Initial Release) | POWER8   | Never used,     |
|                                             |              |                        |          | now removed.    |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_GET_MSI_32`                      |  39          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_GET_MSI_64`                      |  40          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_START_CPU`                       |  41          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_QUERY_CPU_STATUS`                |  42          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_WRITE_OPPANEL`                   |  43          | v1.0 (Initial Release) | POWER8   | unimplemented   |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_PCI_MAP_PE_DMA_WINDOW`           |  44          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_PCI_MAP_PE_DMA_WINDOW_REAL`      |  45          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| Never used                                  |  46          |                        |          |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| Never used                                  |  47          |                        |          |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| Never used                                  |  48          |                        |          |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_PCI_RESET`                       |  49          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_PCI_GET_HUB_DIAG_DATA`           |  50          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_PCI_GET_PHB_DIAG_DATA`           |  51          | N/A                    |          | Only            |
|                                             |              |                        |          | implemented     |
|                                             |              |                        |          | prior to public |
|                                             |              |                        |          | release.        |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_PCI_FENCE_PHB`                   |  52          | Never                  |          | Never           |
|                                             |              |                        |          | implemented     |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_PCI_REINIT`                      |  53          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_PCI_MASK_PE_ERROR`               |  54          | Never                  |          | Never           |
|                                             |              |                        |          | implemented     |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_SET_SLOT_LED_STATUS`             |  55          | Never                  |          | Never           |
|                                             |              |                        |          | implemented     |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_GET_EPOW_STATUS`                 |  56          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_SET_SYSTEM_ATTENTION_LED`        |  57          | Never                  |          | Never           |
|                                             |              |                        |          | implemented     |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_RESERVED1`                       |  58          | Never                  |          | Never           |
|                                             |              |                        |          | implemented     |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_RESERVED2`                       |  59          | Never                  |          | Never           |
|                                             |              |                        |          | implemented     |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_PCI_NEXT_ERROR`                  |  60          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_PCI_EEH_FREEZE_STATUS2`          |  61          | v1.0 (Initial Release) | POWER8   | Removed, never  |
|                                             |              |                        |          | used!           |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_PCI_POLL`                        |  62          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_PCI_MSI_EOI`                     |  63          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_PCI_GET_PHB_DIAG_DATA2`          |  64          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_XSCOM_READ`                      |  65          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_XSCOM_WRITE`                     |  66          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_LPC_READ`                        |  67          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_LPC_WRITE`                       |  68          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_RETURN_CPU`                      |  69          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_REINIT_CPUS`                     |  70          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_ELOG_READ`                       |  71          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_ELOG_WRITE`                      |  72          | N/A                    |          | Currently       |
|                                             |              |                        |          | unused.         |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_ELOG_ACK`                        |  73          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_ELOG_RESEND`                     |  74          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_ELOG_SIZE`                       |  75          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_FLASH_VALIDATE`                  |  76          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_FLASH_MANAGE`                    |  77          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_FLASH_UPDATE`                    |  78          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_RESYNC_TIMEBASE`                 |  79          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_CHECK_TOKEN`                     |  80          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_DUMP_INIT`                       |  81          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_DUMP_INFO`                       |  82          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_DUMP_READ`                       |  83          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_DUMP_ACK`                        |  84          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_GET_MSG`                         |  85          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_CHECK_ASYNC_COMPLETION`          |  86          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_SYNC_HOST_REBOOT`                |  87          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_SENSOR_READ`                     |  88          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_GET_PARAM`                       |  89          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_SET_PARAM`                       |  90          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_DUMP_RESEND`                     |  91          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_ELOG_SEND`                       |  92          | Never                  |	         | Never used      |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_PCI_SET_PHB_CAPI_MODE`           |  93          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_DUMP_INFO2`                      |  94          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_WRITE_OPPANEL_ASYNC`             |  95          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_PCI_ERR_INJECT`                  |  96          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_PCI_EEH_FREEZE_SET`              |  97          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_HANDLE_HMI`                      |  98          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_CONFIG_CPU_IDLE_STATE`           |  99          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_SLW_SET_REG`                     | 100          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_REGISTER_DUMP_REGION`            | 101          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_UNREGISTER_DUMP_REGION`          | 102          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_WRITE_TPO`                       | 103          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_READ_TPO`                        | 104          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_GET_DPO_STATUS`                  | 105          | v1.0 (Initial Release) | POWER8   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_OLD_I2C_REQUEST`                 | 106          | Introduced and         |          | Do not use.     |
|                                             |              | deprecated in          |          |                 |
|                                             |              | :ref:`skiboot-4.0`.    |          |                 |
|                                             |              | Should be completely   |          |                 |
|                                             |              | unused.                |          |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_IPMI_SEND`                       | 107          | :ref:`skiboot-4.0`     | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_IPMI_RECV`                       | 108          | :ref:`skiboot-4.0`     | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_I2C_REQUEST`                     | 109          | :ref:`skiboot-4.0`     | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_FLASH_READ`                      | 110          | :ref:`skiboot-5.0`     | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_FLASH_WRITE`                     | 111          | :ref:`skiboot-5.0`     | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_FLASH_ERASE`                     | 112          | :ref:`skiboot-5.0`     | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_PRD_MSG`                         | 113          | :ref:`skiboot-5.0`     | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_LEDS_GET_INDICATOR`              | 114          | :ref:`skiboot-5.0`     | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_LEDS_SET_INDICATOR`              | 115          | :ref:`skiboot-5.0`     | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_CEC_REBOOT2`                     | 116          | :ref:`skiboot-5.1.0`   | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_CONSOLE_FLUSH`                   | 117          | :ref:`skiboot-5.1.13`  | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_GET_DEVICE_TREE`                 | 118          | :ref:`skiboot-5.3.0`   | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_PCI_GET_PRESENCE_STATE`          | 119          | :ref:`skiboot-5.3.0`   | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_PCI_GET_POWER_STATE`             | 120          | :ref:`skiboot-5.3.0`   | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_PCI_SET_POWER_STATE`             | 121          | :ref:`skiboot-5.3.0`   | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_INT_GET_XIRR`                    | 122          | :ref:`skiboot-5.3.0`   | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_INT_SET_CPPR`                    | 123          | :ref:`skiboot-5.3.0`   | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_INT_EOI`                         | 124          | :ref:`skiboot-5.3.0`   | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_INT_SET_MFRR`                    | 125          | :ref:`skiboot-5.3.0`   | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_PCI_TCE_KILL`                    | 126          | :ref:`skiboot-5.3.0`   | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_NMMU_SET_PTCR`                   | 127          | :ref:`skiboot-5.4.0`   | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_XIVE_RESET`                      | 128          | :ref:`skiboot-5.5.0`   | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_XIVE_GET_IRQ_INFO`               | 129          | :ref:`skiboot-5.5.0`   | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_XIVE_GET_IRQ_CONFIG`             | 130          | :ref:`skiboot-5.5.0`   | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_XIVE_SET_IRQ_CONFIG`             | 131          | :ref:`skiboot-5.5.0`   | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_XIVE_GET_QUEUE_INFO`             | 132          | :ref:`skiboot-5.5.0`   | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_XIVE_SET_QUEUE_INFO`             | 133          | :ref:`skiboot-5.5.0`   | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_XIVE_DONATE_PAGE`                | 134          | :ref:`skiboot-5.5.0`   | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_XIVE_ALLOCATE_VP_BLOCK`          | 135          | :ref:`skiboot-5.5.0`   | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_XIVE_FREE_VP_BLOCK`              | 136          | :ref:`skiboot-5.5.0`   | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_XIVE_GET_VP_INFO`                | 137          | :ref:`skiboot-5.5.0`   | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_XIVE_SET_VP_INFO`                | 138          | :ref:`skiboot-5.5.0`   | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_XIVE_ALLOCATE_IRQ`               | 139          | :ref:`skiboot-5.5.0`   | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_XIVE_FREE_IRQ`                   | 140          | :ref:`skiboot-5.5.0`   | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_XIVE_SYNC`                       | 141          | :ref:`skiboot-5.5.0`   | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_XIVE_DUMP`                       | 142          | :ref:`skiboot-5.5.0`   | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_XIVE_GET_QUEUE_STATE`            | 143          | :ref:`skiboot-6.3`     |          |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_XIVE_SET_QUEUE_STATE`            | 144          | :ref:`skiboot-6.3`     |          |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_SIGNAL_SYSTEM_RESET`             | 145          | :ref:`skiboot-5.5.0`   | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_NPU_INIT_CONTEXT`                | 146          | :ref:`skiboot-5.5.0`   | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_NPU_DESTROY_CONTEXT`             | 147          | :ref:`skiboot-5.5.0`   | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_NPU_MAP_LPAR`                    | 148          | :ref:`skiboot-5.5.0`   | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_IMC_COUNTERS_INIT`               | 149          | :ref:`skiboot-5.7`     | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_IMC_COUNTERS_START`              | 150          | :ref:`skiboot-5.7`     | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_IMC_COUNTERS_STOP`               | 151          | :ref:`skiboot-5.7`     | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_GET_POWERCAP`                    | 152          | :ref:`skiboot-5.8`     | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_SET_POWERCAP`                    | 153          | :ref:`skiboot-5.8`     | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_GET_POWER_SHIFT_RATIO`           | 154          | :ref:`skiboot-5.8`     | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_SET_POWER_SHIFT_RATIO`           | 155          | :ref:`skiboot-5.8`     | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_SENSOR_GROUP_CLEAR`              | 156          | :ref:`skiboot-5.8`     | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_PCI_SET_P2P`                     | 157          | :ref:`skiboot-5.8`     | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_QUIESCE`                         | 158          | :ref:`skiboot-5.10`    | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_NPU_SPA_SETUP`                   | 159          | :ref:`skiboot-5.11`    | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_NPU_SPA_CLEAR_CACHE`             | 160          | :ref:`skiboot-5.11`    | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_NPU_TL_SET`                      | 161          | :ref:`skiboot-5.11`    | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_SENSOR_READ_U64`                 | 162          | :ref:`skiboot-5.10`    | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_SENSOR_GROUP_ENABLE`             | 163          | :ref:`skiboot-5.10`    | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_PCI_GET_PBCQ_TUNNEL_BAR`         | 164          | :ref:`skiboot-5.11`    | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_PCI_SET_PBCQ_TUNNEL_BAR`         | 165          | :ref:`skiboot-5.11`    | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_HANDLE_HMI2`                     | 166          | :ref:`skiboot-6.0`     | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_NX_COPROC_INIT`                  | 167          | :ref:`skiboot-6.1`     |          |                 |
|                                             |              | :ref:`skiboot-6.0.5`   |          |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_NPU_SET_RELAXED_ORDER`           | 168          | :ref:`skiboot-6.2`     |          |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_NPU_GET_RELAXED_ORDER`           | 169          | :ref:`skiboot-6.2`     |          |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_XIVE_GET_VP_STATE`               | 170          | :ref:`skiboot-6.3`     |          |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_NPU_MEM_ALLOC`                   | 171          | Future, likely 6.4     |          |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_NPU_MEM_RELEASE`                 | 172          | Future, likely 6.4     |          |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_MPIPL_UPDATE`                    | 173          | Future, likely 6.4     | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_MPIPL_REGISTER_TAG`              | 174          | Future, likely 6.4     | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_MPIPL_QUERY_TAG`                 | 175          | Future, likely 6.4     | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_PHB_SET_OPTION`                  | 179          | Future, likely 6.6     | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+
| :ref:`OPAL_PHB_GET_OPTION`                  | 180          | Future, likely 6.6     | POWER9   |                 |
+---------------------------------------------+--------------+------------------------+----------+-----------------+

.. toctree::
   :maxdepth: 1
   :glob:

   *


Removed Calls
-------------

Under **very** specific and careful circumstances, an OPAL call has been
removed and no longer supported.

+---------------------------------------------+-------+-----------------------+-----------------------+
| Name                                        | API   | Introduced            | Removed               |
|                                             | Token |                       |                       |
+---------------------------------------------+-------+-----------------------+-----------------------+
| :ref:`OPAL_GET_COMPLETION_TOKEN_STATUS`     |  21   | Never                 |                       |
+---------------------------------------------+-------+-----------------------+-----------------------+
| :ref:`OPAL_PCI_SHPC`                        |  24   | Never                 |                       |
+---------------------------------------------+-------+-----------------------+-----------------------+
| :ref:`OPAL_PCI_SET_PHB_TABLE_MEMORY`        |  30   | Never                 |                       |
+---------------------------------------------+-------+-----------------------+-----------------------+
| :ref:`OPAL_PCI_GET_XIVE_REISSUE`            |  35   | Never                 |                       |
+---------------------------------------------+-------+-----------------------+-----------------------+
| :ref:`OPAL_PCI_GET_XIVE_REISSUE`            |  36   | Never                 |                       |
+---------------------------------------------+-------+-----------------------+-----------------------+
| :ref:`OPAL_PCI_FENCE_PHB`                   |  52   | Never                 |                       |
+---------------------------------------------+-------+-----------------------+-----------------------+
| :ref:`OPAL_PCI_MASK_PE_ERROR`               |  54   | Never                 |                       |
+---------------------------------------------+-------+-----------------------+-----------------------+
| :ref:`OPAL_SET_SLOT_LED_STATUS`             |  55   | Never                 |                       |
+---------------------------------------------+-------+-----------------------+-----------------------+
| :ref:`OPAL_SET_SYSTEM_ATTENTION_LED`        |  57   | Never                 |                       |
+---------------------------------------------+-------+-----------------------+-----------------------+
| :ref:`OPAL_RESERVED1`                       |  58   | Never                 |                       |
+---------------------------------------------+-------+-----------------------+-----------------------+
| :ref:`OPAL_RESERVED2`                       |  59   | Never                 |                       |
+---------------------------------------------+-------+-----------------------+-----------------------+
| :ref:`OPAL_ELOG_SEND`                       |  92   | pre-v1.0              | pre-v1.0              |
+---------------------------------------------+-------+-----------------------+-----------------------+
| :ref:`OPAL_PCI_GET_PHB_DIAG_DATA`           |  51   | pre-v1.0              | pre-v1.0, with last   |
|                                             |       |                       | remnants removed in   |
|                                             |       |                       | :ref:`skiboot-6.4`    |
+---------------------------------------------+-------+-----------------------+-----------------------+
| :ref:`OPAL_GET_XIVE_SOURCE`                 |  38   | v1.0 Initial Release  | :ref:`skiboot-6.4`    |
+---------------------------------------------+-------+-----------------------+-----------------------+
| :ref:`OPAL_WRITE_OPPANEL`                   |  43   | pre-v1.0              | pre-v1.0              |
+---------------------------------------------+-------+-----------------------+-----------------------+
| :ref:`OPAL_OLD_I2C_REQUEST`                 | 106   | v4.0                  | v4.0                  |
+---------------------------------------------+-------+-----------------------+-----------------------+
| :ref:`OPAL_REGISTER_OPAL_EXCEPTION_HANDLER` |  22   | v1.0 Initial Release  | :ref:`skiboot-5.0`    |
+---------------------------------------------+-------+-----------------------+-----------------------+
| :ref:`OPAL_PCI_SET_HUB_TCE_MEMORY`          |  11   | pre-v1.0              | :ref:`skiboot-5.2.0`  |
+---------------------------------------------+-------+-----------------------+-----------------------+
| :ref:`OPAL_PCI_SET_PHB_TCE_MEMORY`          |  12   | pre-v1.0              | :ref:`skiboot-5.2.0`  |
+---------------------------------------------+-------+-----------------------+-----------------------+
| :ref:`OPAL_PCI_EEH_FREEZE_STATUS2`          |  61   | v1.0 Initial Release  | :ref:`skiboot-6.4`    |
+---------------------------------------------+-------+-----------------------+-----------------------+
| :ref:`OPAL_PCI_SET_MVE`                     |  33   | v1.0 Initial Release  | :ref:`skiboot-7.1`    |
+---------------------------------------------+--------------+------------------------+----------+----+
| :ref:`OPAL_PCI_SET_MVE_ENABLE`              |  34   | v1.0 Initial Release  | :ref:`skiboot-7.1`    |
+---------------------------------------------+--------------+------------------------+----------+----+

.. _OPAL_GET_COMPLETION_TOKEN_STATUS:

OPAL_GET_COMPLETION_TOKEN_STATUS
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

In the before time, long-long ago, there existed something called OPAL before
the incarnation we know today. Presumably, this long forgotten incarnation
had a call called this.

This call has never been implemented, and never will be.

.. _OPAL_PCI_SHPC:

OPAL_PCI_SHPC
^^^^^^^^^^^^^

A remnant of a long forgotten incarnation of OPAL. Never implemented, never
will be.

.. _OPAL_PCI_SET_PHB_TABLE_MEMORY:

OPAL_PCI_SET_PHB_TABLE_MEMORY
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

A remnant of an old API design. Never implemented, never used. Only ever
returned :ref:`OPAL_UNSUPPORTED`, now the call is not implemented at all.

.. _OPAL_PCI_GET_XIVE_REISSUE:

OPAL_PCI_GET_XIVE_REISSUE
^^^^^^^^^^^^^^^^^^^^^^^^^

A remnant of something prior to OPALv3. Never implemented in skiboot and never
used by anyone. Returend :ref:`OPAL_UNSUPPORTED` until :ref:`skiboot-6.4`, where
it was removed.

.. _OPAL_PCI_SET_XIVE_REISSUE:

OPAL_PCI_SET_XIVE_REISSUE
^^^^^^^^^^^^^^^^^^^^^^^^^

A remnant of something prior to OPALv3. Never implemented in skiboot and never
used by anyone. Returend :ref:`OPAL_UNSUPPORTED` until :ref:`skiboot-6.4`, where
it was removed.

.. _OPAL_PCI_FENCE_PHB:

OPAL_PCI_FENCE_PHB
^^^^^^^^^^^^^^^^^^

Never implemented.

.. _OPAL_PCI_MASK_PE_ERROR:

OPAL_PCI_MASK_PE_ERROR
^^^^^^^^^^^^^^^^^^^^^^

Never implemented.

.. _OPAL_SET_SLOT_LED_STATUS:

OPAL_SET_SLOT_LED_STATUS
^^^^^^^^^^^^^^^^^^^^^^^^

Never implemented.

.. _OPAL_SET_SYSTEM_ATTENTION_LED:

OPAL_SET_SYSTEM_ATTENTION_LED
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Never implemented.

.. _OPAL_RESERVED1:

OPAL_RESERVED1
^^^^^^^^^^^^^^

Reserved for future use, but never used.

.. _OPAL_RESERVED2:

OPAL_RESERVED2
^^^^^^^^^^^^^^

Reserved for future use, but never used.

.. _OPAL_ELOG_SEND:

OPAL_ELOG_SEND
^^^^^^^^^^^^^^

Brielfy present prior to the first public release of OPAL. Never used in any
public kernel tree. If this functionality were to ever be implemented, it'd
appear as :ref:`OPAL_ELOG_WRITE` rather than this call.

.. _OPAL_PCI_GET_PHB_DIAG_DATA:

OPAL_PCI_GET_PHB_DIAG_DATA
==========================

This call was introduced and functionally removed (all backends for it were)
before the first public opal release. It has not been used since Linux 3.11-rc1.
Considering the state of EEH in such old kernels and firmware, removing the
remnants of this call is considered safe. If for some bizarre reason such an
old kernel is run on :ref:`skiboot-6.4` or later, an :ref:`OPAL_PARAMETER` error
will be returned instead of :ref:`OPAL_UNSUPPORTED`.

It is replaced by :ref:`OPAL_PCI_GET_PHB_DIAG_DATA2` instead.

.. _OPAL_GET_XIVE_SOURCE:

OPAL_GET_XIVE_SOURCE
^^^^^^^^^^^^^^^^^^^^

While this call was technically implemented by skiboot, no code has ever called
it, and it was only ever implemented for the p7ioc-phb back-end (i.e. POWER7).
Since this call was unused in Linux, and that  POWER7 with OPAL was only ever
available internally, it was determined that it was safe to remove this call as
of :ref:`skiboot-6.4`.

.. _OPAL_WRITE_OPPANEL:

OPAL_WRITE_OPPANEL
^^^^^^^^^^^^^^^^^^

Never in a released version, use :ref:`OPAL_WRITE_OPPANEL_ASYNC`.

.. _OPAL_OLD_I2C_REQUEST:

OPAL_OLD_I2C_REQUEST
^^^^^^^^^^^^^^^^^^^^

Never used. Only existing briefly in the :ref:`skiboot-4.0` development cycle.


.. _OPAL_REGISTER_OPAL_EXCEPTION_HANDLER:

OPAL_REGISTER_OPAL_EXCEPTION_HANDLER
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

.. code-block:: c

   #define OPAL_REGISTER_OPAL_EXCEPTION_HANDLER	22


   int64_t opal_register_exc_handler(uint64_t opal_exception __unused,
                                     uint64_t handler_address __unused,
				     uint64_t glue_cache_line __unused);


This call existed for a very short period of time and only ever worked with Big
Endian host operating systems. The idea was that OPAL would handle HMIs and
an OS could (if it chose to) register a handler for them. This call is not
required since the introduction of :ref:`OPAL_HANDLE_HMI` and all machines that
ever shipped without :ref:`OPAL_HANDLE_HMI` have a firmware update that
supports it. For IBM Tuleta machines, this was FW810.20 (released Oct 2014)
that had :ref:`OPAL_HANDLE_HMI` support.

This call was removed in :ref:`skiboot-5.0` and now just
returns :ref:`OPAL_UNSUPPORTED`.

Use of the :ref:`OPAL_HANDLE_HMI` call was introduced in Linux 3.17.


.. _OPAL_PCI_SET_HUB_TCE_MEMORY:

OPAL_PCI_SET_HUB_TCE_MEMORY
^^^^^^^^^^^^^^^^^^^^^^^^^^^

.. code-block:: c

   #define OPAL_PCI_SET_HUB_TCE_MEMORY		11

   int64_t opal_pci_set_hub_tce_memory(uint64_t hub_id,
		                       uint64_t tce_mem_addr __unused,
                                       uint64_t tce_mem_size __unused);

This call was only ever relevant for p5ioc based POWER7 systems. These were
never available with OPAL outside of IBM development.

Support for POWER7 systems with p5ioc was dropped in :ref:`skiboot-5.2.0`,
and these systems were only ever used with OPAL inside IBM for development
and bring-up purposes.

Support for p5ioc was removed from the Linux kernel in v4.6-rc1.

.. _OPAL_PCI_SET_PHB_TCE_MEMORY:

OPAL_PCI_SET_PHB_TCE_MEMORY
^^^^^^^^^^^^^^^^^^^^^^^^^^^

.. code-block:: c

   #define OPAL_PCI_SET_PHB_TCE_MEMORY		12

   int64_t opal_pci_set_phb_tce_memory(uint64_t phb_id,
                                       uint64_t tce_mem_addr,
                                       uint64_t tce_mem_size);

This call was only ever relevant for p5ioc based POWER7 systems. These were
never available with OPAL outside of IBM development.

Support for POWER7 systems with p5ioc was dropped in :ref:`skiboot-5.2.0`,
and these systems were only ever used with OPAL inside IBM for development
and bring-up purposes.

Support for p5ioc was removed from the Linux kernel in v4.6-rc1.

.. _OPAL_PCI_SET_MVE:

OPAL_PCI_SET_MVE
^^^^^^^^^^^^^^^^

Dead code, as the callback did nothing after the P7IOC code was removed in
skiboot 6.4. Removed in :ref:`skiboot-7.1`.

.. _OPAL_PCI_SET_MVE_ENABLE:

OPAL_PCI_SET_MVE_ENABLE
^^^^^^^^^^^^^^^^^^^^^^^

Dead code, as the callback did nothing after the P7IOC code was removed in
skiboot 6.4. Removed in :ref:`skiboot-7.1`.

Future Calls
------------

.. _OPAL_ELOG_WRITE:

OPAL_ELOG_WRITE
^^^^^^^^^^^^^^^

May be implemented in the future to complement the :ref:`OPAL_ELOG_READ` call.