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[PATCH v2 0/7] target/riscv: Initial support for native debug feature vi
From: |
Bin Meng |
Subject: |
[PATCH v2 0/7] target/riscv: Initial support for native debug feature via M-mode CSRs |
Date: |
Sat, 30 Oct 2021 21:55:06 +0800 |
This adds initial support for the native debug via the Trigger Module,
as defined in the RISC-V Debug Specification [1].
Only "Address / Data Match" trigger (type 2) is implemented as of now,
which is mainly used for hardware breakpoint and watchpoint. The number
of type 2 triggers implemented is 2, which is the number that we can
find in the SiFive U54/U74 cores.
[1] https://github.com/riscv/riscv-debug-spec/raw/master/riscv-debug-stable.pdf
Based-on: 20211030030606.32297-1-bmeng.cn@gmail.com
Changes in v2:
- new patch: add debug state description
- use 0 instead of GETPC()
- change the config option to 'disabled' by default
- new patch: enable native debug feature on virt and sifive_u CPUs
Bin Meng (7):
target/riscv: Add initial support for native debug
target/riscv: machine: Add debug state description
target/riscv: debug: Implement debug related TCGCPUOps
target/riscv: cpu: Add a config option for native debug
target/riscv: csr: Hook debug CSR read/write
target/riscv: cpu: Enable native debug feature on virt and sifive_u
CPUs
hw/core: tcg-cpu-ops.h: Update comments of debug_check_watchpoint()
include/hw/core/tcg-cpu-ops.h | 1 +
target/riscv/cpu.h | 7 +
target/riscv/debug.h | 114 +++++++++
target/riscv/cpu.c | 18 ++
target/riscv/csr.c | 57 +++++
target/riscv/debug.c | 441 ++++++++++++++++++++++++++++++++++
target/riscv/machine.c | 33 +++
target/riscv/meson.build | 1 +
8 files changed, 672 insertions(+)
create mode 100644 target/riscv/debug.h
create mode 100644 target/riscv/debug.c
--
2.25.1
- [PATCH v2 0/7] target/riscv: Initial support for native debug feature via M-mode CSRs,
Bin Meng <=
- [PATCH v2 1/7] target/riscv: Add initial support for native debug, Bin Meng, 2021/10/30
- [PATCH v2 3/7] target/riscv: debug: Implement debug related TCGCPUOps, Bin Meng, 2021/10/30
- [PATCH v2 4/7] target/riscv: cpu: Add a config option for native debug, Bin Meng, 2021/10/30
- [PATCH v2 2/7] target/riscv: machine: Add debug state description, Bin Meng, 2021/10/30
- [PATCH v2 7/7] hw/core: tcg-cpu-ops.h: Update comments of debug_check_watchpoint(), Bin Meng, 2021/10/30
- [PATCH v2 5/7] target/riscv: csr: Hook debug CSR read/write, Bin Meng, 2021/10/30
- [PATCH v2 6/7] target/riscv: cpu: Enable native debug feature on virt and sifive_u CPUs, Bin Meng, 2021/10/30