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Change Log

Version 3.0-rc1

  • Added SBI FWFT extension

  • Added SBI SSE extension

  • Added error code SBI_ERR_BAD_RANGE

  • Added error code SBI_ERR_INVALID_STATE

Version 2.0

  • Clarification around SBI PMU set memory function

  • Base extension function name typo fix

  • Upate the document state to Ratified

Version 2.0-rc8

  • Clarfications STA extension and counter index in the pmu snapshot.

Version 2.0-rc7

  • Few clarfications around system suspend and pmu snapshot.

Version 2.0-rc6

  • Few clarifications around rfence extensions

  • Marks public review period complete.

Version 2.0-rc5

  • Update the document state to Frozen

Version 2.0-rc4

  • Added flags parameter to sbi_pmu_snapshot_set_shmem()

  • Return error code SBI_ERR_NO_SHMEM in SBI PMU extension wherever applicable

  • Made flags parameter of sbi_steal_time_set_shmem() as unsigned long

  • Split the specification into multiple adoc files

  • Add more clarification for firmware/vendor/experimental extension space.

  • Fix ambiguous usage of normative statements.

Version 2.0-rc3

  • CI support added

  • Fix revmark in the makefile.

  • Few minor cleanups.

Version 2.0-rc2

  • Added clarification for SUSP, NACL & STA extensions.

  • Standardization of hart usage.

  • Added an error code in SBI DBCN extension.

Version 2.0-rc1

  • Added common description for shared memory physical address range parameter

  • Added SBI debug console extension

  • Relaxed the counter width requirement on SBI PMU firmware counters

  • Added sbi_pmu_counter_fw_read_hi() in SBI PMU extension

  • Reserved space for SBI implementation specific firmware events

  • Added SBI system suspend extension

  • Added SBI CPPC extension

  • Clarified that an SBI extension can be partially implemented only if it defines a mechanism to discover implemented SBI functions

  • Added error code SBI_ERR_NO_SHMEM

  • Added SBI nested acceleration extension

  • Added common description for a virtual hart

  • Added SBI steal-time accounting extension

  • Added SBI PMU snapshot extension

Version 1.0.0

  • Updated the version for ratification

Version 1.0-rc3

  • Updated the calling convention

  • Fixed a typo in PMU extension

  • Added a abbreviation table

Version 1.0-rc2

  • Update to RISC-V formatting

  • Improved the introduction

  • Removed all references to RV32

Version 1.0-rc1

  • A typo fix

Version 0.3.0

  • Few typo fixes

  • Updated the LICENSE with detailed text instead of a hyperlink

Version 0.3-rc1

  • Improved document styling and naming conventions

  • Added SBI system reset extension

  • Improved SBI introduction section

  • Improved documentation of SBI hart state management extension

  • Added suspend function to SBI hart state management extension

  • Added performance monitoring unit extension

  • Clarified that an SBI extension shall not be partially implemented

Version 0.2

  • The entire v0.1 SBI has been moved to the legacy extension, which is now an optional extension. This is technically a backwards-incompatible change because the legacy extension is optional and v0.1 of the SBI doesn’t allow probing, but it’s as good as we can do.