rustsbi/CHANGELOG.md

Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

Unreleased

Added

Modified

[0.2.1] - 2022-02-14

This update fixes a severe bug on IPI module. The previous version of RustSBI did not follow the SBI definition of IPI module on SBI v0.3 format. Users are encouraged to use 0.2.1 and newer version instead of yanked 0.2.0 version.

Modified

• Internal speed up to new SBI v0.3+ IPI procedure
• Reduce code size by inlining internal functions

Fixed

• Severe bug on IPI does not follow new SBI version convention rule
• Pass cargo test on docs, add test cases on hart mask

0.2.0 - 2022-02-13

Added

• Support for RISC-V SBI v1.0 and v0.3 Specification
• S-level Illegal instruction exception is now delegated into S-level software handler
• Support RFENCE extension in RustSBI framework
• Added a test kernel to test SBI function on RustSBI implementations
• Support device tree binary in K210 platform
• Support SBI v0.3 hart suspend function
• Support PMU extension trait and init function
• Use fat pointer cell to support asynchronous hart state monitor module
• Build under new asm! macro

Modified

• Reform RustSBI project into a library
• Use u32 function and module id width for SBI 1.0
• Function rustsbi::ecall now require a0-a5 input parameters
• Enhanced in-line code documents from SBI standard
• Now IPI module requires to return an SbiRet value
• Remove use of global_asm and llvm_asm in test kernel
• Align to 4 bytes for interrupt handler on QEMU and test kernel
• Update riscv crate dependency for QEMU platform
• Use mtval to read instruction on QEMU; still need to be kept on K210 as 1.9.1 does not define this register behavior
• Modify second parameter of enter_privileged to opaque other than dtb_pa
• Dump all trap frame registers when exception happened in reference implementations
• Use embedded-hal dependency version 0.2.6
• Change to asynchronous lock structure trait style
• Function num_counters returns usize and its SBI call must return SBI_SUCCESS
• Use amo mutex for legacy stdio handler; remove dependency on lazy_static and spin
• Improve documents to adapt to v1.0-rc2 specification

Fixed

• Test kernel console now will lock before println line is finished
• Non-legacy supervisor IPI extension is fixed
• Returns -1 other than 0 when legacy console getchar function fails; thank you @duskmoon314

0.1.1 - 2021-02-01

Added

• Abstract support for HSM and SRST extensions
• Support SRST extension using test device on QEMU
• Count harts from device tree binary on QEMU platform
• Show hart id on panic for QEMU platform

Modified

• Use '#[naked]' instead of global assembly in newer Rust version for RustSBI platforms

Fixed

• Fix init_hsm function which is not exported before
• Small fixes on library documents

0.1.0 - 2020-12-26

RustSBI is adapted to SBI standard with implementation number 4.

Added

• Implementation specific SBI module 0x0A000004 defined
• K210 specific sbi_rustsbi_k210_sext SBI call

Modified

• Update private SBI function to K210 implementation

Fixed

• Delegate instruction load/store faults to S mode, allowing legacy console getchar to work on K210 (#7).
• Fixed 64-bit and 32-bit instruction value for target pointer widths
• Fixed readme document path for crates.io

0.0.2 - 2020-10-20

Added

• Support for Kendryte K210 with MMU and S-Mode
• Support for QEMU
• SBI v0.2 TIME extension and IPI extension
• RISC-V ISA both RV32 and RV64
• RISC-V Privileged Specification v1.11
• Backward compatible to privileged spec v1.9.1