| .. _skiboot-5.1.0: |
| |
| skiboot-5.1.0 |
| ============= |
| |
| skiboot-5.1.0 was released on August 17th, 2015. |
| |
| skiboot-5.1.0 is the first stable release of 5.1.0 following two beta releases. |
| This new stable release replaces skiboot-5.0 as the current stable skiboot |
| release (5.0 was released April 14th 2015). |
| |
| Skiboot 5.1.0 contains all fixes from skiboot-5.0 stable branch up to |
| skiboot-5.0.5 and everything from 5.1.0-beta1 and 5.1.0-beta2. |
| |
| Over skiboot-5.1.0-beta2, we have the following changes: |
| |
| - opal_prd now supports multiple socket systems |
| - fix compiler warnings in gard and libflash |
| |
| Below are the changes introduced in previous skiboot-5.1.0 releases over |
| the previous stable release, skiboot-5.0: |
| |
| New features |
| ^^^^^^^^^^^^ |
| |
| - Add Naples chip (CPU, PHB, LPC serial interrupts) support |
| - Added qemu platform |
| - improvements to FSI error handling |
| - improvements in chip TOD failover (some only on FSP systems) |
| - Set Relative Priority Register (RPR) to recommended value |
| |
| - this affects thread priority in SMT modes |
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| - greatly reduce memory consumption by CPU stacks for non-present CPUs |
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| - Previously we would reserve enough memory for max PIR for each CPU |
| type. |
| - This fix frees up 77MB of RAM on a typical P8 system. |
| |
| - increased OPAL API documentation |
| - Asynchronous preloading of resources from FSP/flash |
| |
| - improves boot time on some systems |
| |
| - Basic Garrison platform support |
| - Add Mambo platform (P8 Functional Simulator, systemsim) |
| |
| - includes fake NVRAM, RTC |
| |
| - Support building with GCOV, increasing memory for skiboot binary to 2MB |
| |
| - includes boot code coverage testing |
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| - Increased skiboot HEAP size. |
| |
| - We are not aware of any system where you would run out, but on large |
| systems it was getting closer than we liked. |
| |
| - add boot_tests.sh for helping automate boot testing on FSP and BMC machines |
| - Versioning of pflash and gard utilities to help Linux (or other OS) |
| distributions with packaging. |
| - OCC throttle status messages to host |
| - CAPP timebase sync ("ibm,capp-timebase-sync" in DT to indicate CAPP timebase |
| was synced by OPAL) |
| - opal-api: Add OPAL call to handle abnormal reboots. |
| |
| ``OPAL_CEC_REBOOT2`` currently supports two reboot types: |
| |
| 0. normal reboot, that will behave similar to that of opal_cec_reboot() call |
| 1. platform error reboot. |
| |
| Long term, this is designed to replace OPAL_CEC_REBOOT. |
| |
| New features for FSP based machines |
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ |
| - in-band IPMI support |
| - ethernet adaptor location codes |
| - add DIMM frequency information to device tree |
| - improvements in FSP error log code paths |
| - fix some boot time memory leaks |
| |
| - harmless to end user |
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| New features for AMI BMC based machines |
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ |
| - PCIe power workaround for K80 |
| - Added support for Macronix 128Mbit flash chips |
| - Initial PRD support for Firestone platform |
| - improved reliability when BMC reboots |
| |
| The following bugs have been fixed |
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ |
| - Increase PHB3 timeout for electrical links coming up to 2 seconds. |
| |
| - fixes issues with some Mellanox cards |
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| - Hang in opal_reinit_cpus() that could prevent kdump from functioning |
| - PHB3: fix crash in phb3_init |
| - PHB3: fix crash with fenced PHB in phb3_init_hw() |
| - Fix bugs in hw/bt.c (interface for IPMI on BMC machines) that could possibly |
| lead to a crash (dereferencing invalid address, deadlock) |
| - ipmi/sel: fix use-after-free |
| - Bug fixes in EEH handling |
| |
| - opal_pci_next_error() cleared OPAL_EVENT_PCI_ERROR unconditionally, |
| possibly leading to missed errors. |
| |
| - external/opal-prd: Only map each PRD range once |
| |
| - could eventually lead to failing to map PRD ranges |
| |
| - On skiboot crash, don't try to print symbol when we didn't find one |
| |
| - makes backtrace prettier |
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| - On skiboot crash, dump hssr0 and hsrr1 registers correctly. |
| - Better support old and biarch compilers |
| |
| - test "new" compiler flags before using them |
| - Specify -mabi=elfv1 if supported (which means it's needed) |
| |
| - fix boot-coverage-report makefile target |
| - ipmi: Fix the opal_ipmi_recv() call to handle the error path |
| |
| - Could make kernel a sad panda when in continues with other IPMI commands |
| - IPMI: truncate SELs at 2kb |
| |
| - it's the limit of the astbmc. We think. |
| |
| - IPMI/SEL/PEL: |
| |
| - As per PEL spec, we should log events with severity >= 0x22 and "service |
| action flag" is "on". But in our case, all logs OPAL originagted logs |
| are makred as report externally. |
| We now only report logs with severity >= 0x22 |
| |
| - IPMI: fixes to eSEL logging |
| - hw/phb3: Change reserved PE to 255 |
| |
| - Currently, we have reserved PE#0 to which all RIDs are mapped prior |
| to PE assignment request from kernel. The last M64 BAR is configured |
| to have shared mode. So we have to cut off the first M64 segment, |
| which corresponds to reserved PE#0 in kernel. If the first BAR |
| (for example PF's IOV BAR) requires huge alignment in kernel, we |
| have to waste huge M64 space to accommodate the alignment. If we |
| have reserved PE#256, the waste of M64 space will be avoided. |
| |
| FSP-specific bugs fixed |
| ^^^^^^^^^^^^^^^^^^^^^^^ |
| - (also fixed in skiboot-5.0.2) Fix race in firenze_get_slot_info() leading to |
| assert() with many PCI cards |
| |
| With many PCI cards, we'd hit a race where calls to |
| firenze_add_pcidev_to_fsp_inventory would step on each other leading to |
| memory corruption and finally an assert() in the allocator being hit |
| during boot. |
| |
| - PCIe power workaround for K80 cards |
| - /ibm,opal/led renamed to /ibm,opal/leds in Device Tree |
| |
| - compatible change as no FSP based systems shipped with skiboot-5.0 |
| |
| General improvements |
| ^^^^^^^^^^^^^^^^^^^^ |
| - Preliminary Centaur i2c support |
| |
| - lays framework for supporting Centaur i2c |
| |
| - don't run pollers on non-boot CPUs in time_wait |
| - improvements to opal-prd, pflash, libflash |
| |
| - including new blocklevel interface in libflash |
| |
| - many minor fixes to issues found by static analysis |
| - improvements in FSP error log code paths |
| - code cleanup in memory allocator |
| - Don't expose individual nvram partitions in the device tree, just the whole |
| flash device. |
| - build improvements for building on ppc64el host |
| - improvements in cpu_relax() for idle threads, needed for GCOV on large |
| machines. |
| - Optimized memset() for POWER8, greatly reducing number of instructions |
| executed for boot, which helps boot time in simulators. |
| - Major improvements in hello_world kernel |
| |
| - Bloat of huge 17 instruction test case reduced to 10. |
| |
| - Disable bust_locks for general calls of abort() |
| |
| - Should enable better error messages during abort() when other users of |
| LPC bus exist (e.g. flash) |
| |
| - unified version numbers for bundled utilities |
| - external/boot_test/boot_test.sh |
| |
| - better usable for automated boot testing |
| |
| Contributors |
| ------------ |
| Since skiboot-5.0, we've had the following changesets: |
| |
| Processed 372 csets from 27 developers |
| 2 employers found |
| A total of 15868 lines added, 3359 removed (delta 12509) |
| |
| Developers with the most changesets |
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| ========================== ============= |
| Developer Changesets |
| ========================== ============= |
| Stewart Smith 117 (31.5%) |
| Jeremy Kerr 37 (9.9%) |
| Cyril Bur 33 (8.9%) |
| Vasant Hegde 32 (8.6%) |
| Benjamin Herrenschmidt 32 (8.6%) |
| Kamalesh Babulal 22 (5.9%) |
| Joel Stanley 12 (3.2%) |
| Mahesh Salgaonkar 12 (3.2%) |
| Alistair Popple 12 (3.2%) |
| Neelesh Gupta 9 (2.4%) |
| Gavin Shan 8 (2.2%) |
| Cédric Le Goater 8 (2.2%) |
| Ananth N Mavinakayanahalli 8 (2.2%) |
| Vipin K Parashar 6 (1.6%) |
| Michael Neuling 6 (1.6%) |
| Samuel Mendoza-Jonas 3 (0.8%) |
| Frederic Bonnard 3 (0.8%) |
| Andrew Donnellan 2 (0.5%) |
| Vaidyanathan Srinivasan 2 (0.5%) |
| Philippe Bergheaud 1 (0.3%) |
| Shilpasri G Bhat 1 (0.3%) |
| Daniel Axtens 1 (0.3%) |
| Hari Bathini 1 (0.3%) |
| Michael Ellerman 1 (0.3%) |
| Andrei Warkentin 1 (0.3%) |
| Dan Horák 1 (0.3%) |
| Anton Blanchard 1 (0.3%) |
| ========================== ============= |
| |
| |
| Developers with the most changed lines |
| |
| ========================== ============ |
| ========================== ============ |
| Stewart Smith 4499 (27.3%) |
| Benjamin Herrenschmidt 3782 (22.9%) |
| Jeremy Kerr 1887 (11.4%) |
| Cyril Bur 1654 (10.0%) |
| Vasant Hegde 959 (5.8%) |
| Mahesh Salgaonkar 886 (5.4%) |
| Neelesh Gupta 473 (2.9%) |
| Samuel Mendoza-Jonas 387 (2.3%) |
| Vipin K Parashar 332 (2.0%) |
| Philippe Bergheaud 171 (1.0%) |
| Shilpasri G Bhat 165 (1.0%) |
| Alistair Popple 151 (0.9%) |
| Joel Stanley 105 (0.6%) |
| Cédric Le Goater 89 (0.5%) |
| Gavin Shan 83 (0.5%) |
| Frederic Bonnard 76 (0.5%) |
| Kamalesh Babulal 65 (0.4%) |
| Michael Neuling 46 (0.3%) |
| Daniel Axtens 31 (0.2%) |
| Andrew Donnellan 22 (0.1%) |
| Ananth N Mavinakayanahalli 20 (0.1%) |
| Anton Blanchard 3 (0.0%) |
| Vaidyanathan Srinivasan 2 (0.0%) |
| Hari Bathini 2 (0.0%) |
| Michael Ellerman 1 (0.0%) |
| Andrei Warkentin 1 (0.0%) |
| Dan Horák 1 (0.0%) |
| ========================== ============ |
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| Developers with the most lines removed |
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| =========================== ============ |
| =========================== ============ |
| Michael Neuling 24 (0.7%) |
| Hari Bathini 1 (0.0%) |
| =========================== ============ |
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| Developers with the most signoffs (total 253) |
| |
| =========================== ============ |
| =========================== ============ |
| Stewart Smith 249 (98.4%) |
| Mahesh Salgaonkar 4 (1.6%) |
| =========================== ============ |
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| Developers with the most reviews (total 24) |
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| =========================== ============ |
| =========================== ============ |
| Vasant Hegde 9 (37.5%) |
| Joel Stanley 3 (12.5%) |
| Gavin Shan 2 (8.3%) |
| Kamalesh Babulal 2 (8.3%) |
| Samuel Mendoza-Jonas 2 (8.3%) |
| Alistair Popple 2 (8.3%) |
| Stewart Smith 1 (4.2%) |
| Andrei Warkentin 1 (4.2%) |
| Preeti U Murthy 1 (4.2%) |
| Ananth N Mavinakayanahalli 1 (4.2%) |
| =========================== ============ |
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| Developers with the most test credits (total 1) |
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| =========================== ============ |
| =========================== ============ |
| Chad Larson 1 (100.0%) |
| =========================== ============ |
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| Developers who gave the most tested-by credits (total 1) |
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| =========================== ============ |
| =========================== ============ |
| Gavin Shan 1 (100.0%) |
| =========================== ============ |
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| Developers with the most report credits (total 4) |
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| =========================== ============ |
| =========================== ============ |
| Benjamin Herrenschmidt 2 (50.0%) |
| Chad Larson 1 (25.0%) |
| Andrei Warkentin 1 (25.0%) |
| =========================== ============ |
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| Developers who gave the most report credits (total 4) |
| |
| =========================== ============ |
| =========================== ============ |
| Stewart Smith 3 (75.0%) |
| Gavin Shan 1 (25.0%) |
| =========================== ============ |
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| Top changeset contributors by employer |
| |
| ========================== ============ |
| ========================== ============ |
| IBM 369 (99.2%) |
| (Unknown) 3 (0.8%) |
| ========================== ============ |
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| Top lines changed by employer |
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| ========================= ============== |
| ========================= ============== |
| IBM 16497 (100.0%) |
| (Unknown) 3 (0.0%) |
| ========================= ============== |
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| Employers with the most signoffs (total 253) |
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| ========================= ============= |
| ========================= ============= |
| IBM 253 (100.0%) |
| ========================= ============= |
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| Employers with the most hackers (total 27) |
| |
| ========================= ============ |
| ========================= ============ |
| IBM 24 (88.9%) |
| (Unknown) 3 (11.1%) |
| ========================= ============ |
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