[v4] target/riscv: Support RISC-V privilege 1.13 spec

[PATCH v4 0/6] target/riscv: Support RISC-V privilege 1.13 spec

Posted by Fea.Wang 5 months, 3 weeks ago

Based on the change log for the RISC-V privilege 1.13 spec, add the
support for ss1p13.

base-commit: 7a2356147f3a5faebf95dba4140247ec6e5607b1

* Reorder commits

[v3]
* Correct the mstateen0 for P1P13 in commit message
* Refactor commit by splitting to two commits

[v2]
* Check HEDELEGH by hmode32 instead of any32
* Remove unnecessary code
* Refine calling functions

[v1]

Ref:https://github.com/riscv/riscv-isa-manual/blob/a7d93c9/src/priv-preface.adoc?plain=1#L40-L72

Lists what to do without clarification or document format.
* Redefined misa.MXL to be read-only, making MXLEN a constant.(Skip, implementation ignored)
* Added the constraint that SXLEN≥UXLEN.(Skip, implementation ignored)
* Defined the misa.V field to reflect that the V extension has been implemented.(Skip, existed) 
* Defined the RV32-only medelegh and hedelegh CSRs.(Done in these patches)
* Defined the misaligned atomicity granule PMA, superseding the proposed Zam extension..(Skip, implementation ignored)
* Allocated interrupt 13 for Sscofpmf LCOFI interrupt.(Skip, existed) 
* Defined hardware error and software check exception codes.(Done in these patches)
* Specified synchronization requirements when changing the PBMTE fields in menvcfg and henvcfg.(Skip, implementation ignored)
* Incorporated Svade and Svadu extension specifications.(Skip, existed) 

Fea.Wang (5):
  target/riscv: Define macros and variables for ss1p13
  target/riscv: Add 'P1P13' bit in SMSTATEEN0
  target/riscv: Add MEDELEGH, HEDELEGH csrs for RV32
  target/riscv: Reserve exception codes for sw-check and hw-err
  target/riscv: Support the version for ss1p13

Jim Shu (1):
  target/riscv: Reuse the conversion function of priv_spec

 target/riscv/cpu.c         |  8 ++++++--
 target/riscv/cpu.h         |  5 ++++-
 target/riscv/cpu_bits.h    |  5 +++++
 target/riscv/cpu_cfg.h     |  1 +
 target/riscv/csr.c         | 39 ++++++++++++++++++++++++++++++++++++++
 target/riscv/tcg/tcg-cpu.c | 17 ++++++++---------
 6 files changed, 63 insertions(+), 12 deletions(-)

-- 
2.34.1

Re: [PATCH v4 0/6] target/riscv: Support RISC-V privilege 1.13 spec

Posted by Alistair Francis 5 months, 2 weeks ago

On Thu, Jun 6, 2024 at 11:50 PM Fea.Wang <fea.wang@sifive.com> wrote:
>
> Based on the change log for the RISC-V privilege 1.13 spec, add the
> support for ss1p13.
>
> base-commit: 7a2356147f3a5faebf95dba4140247ec6e5607b1
>
> * Reorder commits
>
> [v3]
> * Correct the mstateen0 for P1P13 in commit message
> * Refactor commit by splitting to two commits
>
> [v2]
> * Check HEDELEGH by hmode32 instead of any32
> * Remove unnecessary code
> * Refine calling functions
>
> [v1]
>
> Ref:https://github.com/riscv/riscv-isa-manual/blob/a7d93c9/src/priv-preface.adoc?plain=1#L40-L72
>
> Lists what to do without clarification or document format.
> * Redefined misa.MXL to be read-only, making MXLEN a constant.(Skip, implementation ignored)
> * Added the constraint that SXLEN≥UXLEN.(Skip, implementation ignored)
> * Defined the misa.V field to reflect that the V extension has been implemented.(Skip, existed)
> * Defined the RV32-only medelegh and hedelegh CSRs.(Done in these patches)
> * Defined the misaligned atomicity granule PMA, superseding the proposed Zam extension..(Skip, implementation ignored)
> * Allocated interrupt 13 for Sscofpmf LCOFI interrupt.(Skip, existed)
> * Defined hardware error and software check exception codes.(Done in these patches)
> * Specified synchronization requirements when changing the PBMTE fields in menvcfg and henvcfg.(Skip, implementation ignored)
> * Incorporated Svade and Svadu extension specifications.(Skip, existed)
>
> Fea.Wang (5):
>   target/riscv: Define macros and variables for ss1p13
>   target/riscv: Add 'P1P13' bit in SMSTATEEN0
>   target/riscv: Add MEDELEGH, HEDELEGH csrs for RV32
>   target/riscv: Reserve exception codes for sw-check and hw-err
>   target/riscv: Support the version for ss1p13
>
> Jim Shu (1):
>   target/riscv: Reuse the conversion function of priv_spec

Thanks!

Applied to riscv-to-apply.next

Alistair

>
>  target/riscv/cpu.c         |  8 ++++++--
>  target/riscv/cpu.h         |  5 ++++-
>  target/riscv/cpu_bits.h    |  5 +++++
>  target/riscv/cpu_cfg.h     |  1 +
>  target/riscv/csr.c         | 39 ++++++++++++++++++++++++++++++++++++++
>  target/riscv/tcg/tcg-cpu.c | 17 ++++++++---------
>  6 files changed, 63 insertions(+), 12 deletions(-)
>
> --
> 2.34.1
>
>