| .. _skiboot-5.10.4: |
| |
| ============== |
| skiboot-5.10.4 |
| ============== |
| |
| skiboot 5.10.4 was released on Wednesday April 4th, 2018. It replaces |
| :ref:`skiboot-5.10.3` as the current stable release in the 5.10.x series. |
| |
| It is recommended that 5.10.3 be used instead of any previous 5.10.x version |
| due to the bug fixes and debugging enhancements in it. |
| |
| Over :ref:`skiboot-5.10.3`, we have one bug fix: |
| |
| - xive: disable store EOI support |
| |
| Hardware has limitations which would require to put a sync after each |
| store EOI to make sure the MMIO operations that change the ESB state |
| are ordered. This is a killer for performance and the PHBs do not |
| support the sync. So remove the store EOI for the moment, until |
| hardware is improved. |
| |
| Also, while we are at changing the XIVE source flags, let's fix the |
| settings for the PHB4s which should follow these rules : |
| |
| - SHIFT_BUG for DD10 |
| - STORE_EOI for DD20 and if enabled |
| - TRIGGER_PAGE for DDx0 and if not STORE_EOI |
