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[PATCH v2 0/8] disas/riscv: Add vendor extension support
From: |
Christoph Muellner |
Subject: |
[PATCH v2 0/8] disas/riscv: Add vendor extension support |
Date: |
Mon, 12 Jun 2023 13:10:26 +0200 |
From: Christoph Müllner <christoph.muellner@vrull.eu>
This series adds vendor extension support to the QEMU disassembler
for RISC-V. The following vendor extensions are covered:
* XThead{Ba,Bb,Bs,Cmo,CondMov,FMemIdx,Fmv,Mac,MemIdx,MemPair,Sync}
* XVentanaCondOps
So far, there have been two attempts to add vendor extension support
to the QEMU disassembler. The first one [1] was posted in August 2022
by LIU Zhiwei and attempts to separate vendor extension specifics
from standard extension code in combination with a patch that introduced
support for XVentanaCondOps. The second one [2] was posted in March 2023
by me and added XThead* support without separating the vendor extensions
from the standard code.
This patchset represents the third attempt to add vendor extension
support to the QEMU disassembler. It adds all features of the previous
attempts and integrates them into a patchset that uses the same
mechanism for testing the extension availability like translate.c
(using the booleans RISCVCPUConfig::ext_*).
To achieve that, a couple of patches were needed to restructure
the existing code.
Note, that this patchset allows an instruction encoder function for each
vendor extension, but operand decoding and instruction printing remains
common code. This is irrelevant for XVentanaCondOps, but the patch for
the XThead* extensions includes changes in riscv.c and riscv.h.
This could be changed to force more separation with the cost of
duplication.
The first patch of this series is cherry-picked from LIU Zhiwei's series.
It was reviewed by Alistair Francis and Richard Henderson, but never
made it on master. I've added "Reviewed-by" tags to the commit.
Changes for v2:
* Rebase on Alistair's riscv-to-apply.next branch
[1] https://lists.nongnu.org/archive/html/qemu-devel/2022-08/msg03662.html
[2] https://lists.nongnu.org/archive/html/qemu-devel/2023-03/msg04566.html
Christoph Müllner (7):
target/riscv: Factor out extension tests to cpu_cfg.h
disas/riscv: Move types/constants to new header file
disas/riscv: Make rv_op_illegal a shared enum value
disas/riscv: Encapsulate opcode_data into decode
disas/riscv: Provide infrastructure for vendor extensions
disas/riscv: Add support for XVentanaCondOps
disas/riscv: Add support for XThead* instructions
LIU Zhiwei (1):
target/riscv: Use xl instead of mxl for disassemble
disas/meson.build | 6 +-
disas/riscv-xthead.c | 707 +++++++++++++++++++++++++++++++++++++++
disas/riscv-xthead.h | 28 ++
disas/riscv-xventana.c | 41 +++
disas/riscv-xventana.h | 18 +
disas/riscv.c | 378 ++++++---------------
disas/riscv.h | 299 +++++++++++++++++
target/riscv/cpu.c | 3 +-
target/riscv/cpu_cfg.h | 37 ++
target/riscv/translate.c | 27 +-
10 files changed, 1246 insertions(+), 298 deletions(-)
create mode 100644 disas/riscv-xthead.c
create mode 100644 disas/riscv-xthead.h
create mode 100644 disas/riscv-xventana.c
create mode 100644 disas/riscv-xventana.h
create mode 100644 disas/riscv.h
--
2.40.1
- [PATCH v2 0/8] disas/riscv: Add vendor extension support,
Christoph Muellner <=
- [PATCH v2 1/8] target/riscv: Use xl instead of mxl for disassemble, Christoph Muellner, 2023/06/12
- [PATCH v2 5/8] disas/riscv: Encapsulate opcode_data into decode, Christoph Muellner, 2023/06/12
- [PATCH v2 6/8] disas/riscv: Provide infrastructure for vendor extensions, Christoph Muellner, 2023/06/12
- [PATCH v2 2/8] target/riscv: Factor out extension tests to cpu_cfg.h, Christoph Muellner, 2023/06/12
- [PATCH v2 4/8] disas/riscv: Make rv_op_illegal a shared enum value, Christoph Muellner, 2023/06/12
- [PATCH v2 7/8] disas/riscv: Add support for XVentanaCondOps, Christoph Muellner, 2023/06/12