146 lines
5.2 KiB
ReStructuredText
146 lines
5.2 KiB
ReStructuredText
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.. _skiboot-5.0:
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===========
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skiboot 5.0
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===========
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Skiboot 5.0 was released Friday 10th April 2015.
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Changes in 5.0 (since rc3):
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- Fix chip id for nx coprocessors.
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- hw/ipmi: Fix FW Boot Progress sensor
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- bt: Add a temporary workaround for bmc dropping messages
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- FSP/CUPD: Fix lock issue
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Changes in rc3 (since rc2):
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- add support for cec_power_down on mambo
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- external/opal-prd: Use link register for cross-endian branch
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- opal header file rework, Linux and skiboot now very closely match (API
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in opal-api.h)
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- libflash: don't use the low level interface if it doesn't exist
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- libflash/file: add file abstraction for libflash
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- external: create a GUARD partition parsing utility
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Changes in rc2 (since rc1):
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- opal: Fix an issue where partial LID load causes opal to hang.
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- nx: use proc_gen instead of param
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- use chip id for NX engine Coproc Instance num
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- Fix (hopefully) missing dot symbols in skiboot.map
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- exceptions: Catch exceptions at boot time
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- exceptions: Remove deprecated exception patching stuff
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- mambo: Make mambo_utils.tcl optional
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- mambo: Exit mambo when the simulation is stopped
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- add NX register defines
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- set NX crb input queues to 842 only
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- core: Catch attempts to branch through a NULL pointer
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- plat/firestone: Add missing platform hooks
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- plat/firestone: Add missing platform hooks
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- elog: Don't call uninitialized platform elog_commit
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- external/opal-prd: Use "official" switch-endian syscall
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- hw/ipmi: Rework sensors and fix boot count sensor
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Changes in rc1 (since 4.1.1):
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General:
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* big OPAL API documentation updates
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We now document around 19 OPAL calls. There's still ~100 left to doc
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though :)
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* skiboot can load FreeBSD kernel payload (thanks to Nathan Whitehorn)
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* You can now run sparse by setting C=1 when building
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* PSI: Revert the timeout for PSI link recovery to architected value
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now 30mins (prev 15)
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* cpuidle: Add validated metrics for idle states
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* core/flash: Add flash API
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OPAL_FLASH_(READ|WRITE|ERASE)
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* capi: Dynamically calculate which CAPP port to use
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no longer hardwired to PHB0
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* vpd: Use slca parent-child relationship to create vpd tree
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* opal: Do not overwrite same HMI event for multiple HMI errors.
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Now Linux will get a HMI event for each HMI error
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* HMI event v2 now includes information about checkstop
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* HMI improvements, handle more conditions gracefully:
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* TB residue error
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* TFMR firmware control error
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* TFMR parity
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* TFMR HDEC parity error
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* TFMR DEC parity error
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* TFMR SPURR/PURR parity error
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* TB residue and HDEC parity HMI errors on split core
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* hostservices: Cache lids prior to first load request
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* Warn when pollers are called with a lock held
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and keep track of lock depth.
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**NOTE:** This means we will get backtraces in skiboot msglog on FSP machines
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This is a KNOWN ISSUE and is largely harmless.
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There's still a couple that we haven't yet cleaned, these
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messages can be thought of as a TODO list for developers.
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* Don't run pollers in time_wait if lock held
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* pci: Don't hang if we have only one CPU
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* Detect recursive poller entry
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* General cleanup
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* Cleanup of opal.h so that we can have Linux and skiboot match
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* add sparse annotations to opal.h
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* Platform hooks for loading and preloading resources (LIDs)
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This lays the groundwork for cutting 4-20 seconds off boot in a
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future skiboot release.
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* Fix potential race when clearing OCC interrupt status
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* Add platform operation for reading sensors
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* add support to read core and memory buffer temperatures
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Mambo/POWER8 Functional Simulator:
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* Replace is_mambo_chip() with a better quirks mechanism.
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* Don't hang if we only have one CPU and PCI.
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BMC systems:
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* BMC can load payload from flash
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* IPMI on BMC systems: graceful poweroff and reboot
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* IPMI on BMC systems: watchdog timer support
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* IPMI on BMC systems: PNOR locking
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* Support for IPMI progress sensor
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* IPMI boot count sensor
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* capi: Rework microcode flash download and CAPP upload
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load microcode on non-fsp systems
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* NEW opal-prd userspace tool that handles PRD on non-FSP systems.
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and OPAL PRD calls to support it.
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* Improvements to opal-prd, libflash, and ipmi
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* ECC support in libflash
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* Load CAPI micro code, enabling CAPI on OpenPower systems.
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* Dynamically calculate which CAPP port to use, don't hardcode to PHB0
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* memboot flash backend
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POWER8
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* add nx-842 coproc support
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FSP systems:
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* Make abort() update sp attn area (like assert does)
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On FSP systems this gives better error logs/dumps when abort() is hit
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* FSP/LEDS: Many improvements and bug fixes
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* LED support for FSP machines
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Adds OPAL_LEDS_(GET|SET)_INDICATOR and device-tree bindings
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* Refactor of fsp-rtc
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* OCC loading fixes, including possible race condition where we would
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fail to IPL.
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POWER7
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* Fix unsupported return code of OPAL_(UN)REGISTER_DUMP_REGION on P7
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* occ: Don't do bad XSCOMs on P7
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The OCC interrupt register only exists on P8, accessing it on P7 causes
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not only error logs but also causes PRD to eventually gard chips.
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* cpu: Handle opal_reinit_cpus() more gracefully on P7
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no longer generate error logs
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* libflash updates for openpower
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* misc code cleanup
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* add nx-842 coproc support
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