From 1acdb3b013f4c13a9482cccd9765491f8ed8841c Mon Sep 17 00:00:00 2001 From: Bin Meng Date: Thu, 21 Apr 2022 08:33:20 +0800 Subject: [PATCH] target/riscv: cpu: Add a config option for native debug Add a config option to enable support for native M-mode debug. This is disabled by default and can be enabled with 'debug=true'. Signed-off-by: Bin Meng Reviewed-by: Alistair Francis Message-Id: <20220421003324.1134983-3-bmeng.cn@gmail.com> Signed-off-by: Alistair Francis --- target/riscv/cpu.c | 5 +++++ target/riscv/cpu.h | 4 +++- 2 files changed, 8 insertions(+), 1 deletion(-) diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c index 8919928f4f..477961b619 100644 --- a/target/riscv/cpu.c +++ b/target/riscv/cpu.c @@ -548,6 +548,10 @@ static void riscv_cpu_realize(DeviceState *dev, Error **errp) riscv_set_feature(env, RISCV_FEATURE_AIA); } + if (cpu->cfg.debug) { + riscv_set_feature(env, RISCV_FEATURE_DEBUG); + } + set_resetvec(env, cpu->cfg.resetvec); /* Validate that MISA_MXL is set properly. */ @@ -795,6 +799,7 @@ static Property riscv_cpu_properties[] = { DEFINE_PROP_BOOL("Zve64f", RISCVCPU, cfg.ext_zve64f, false), DEFINE_PROP_BOOL("mmu", RISCVCPU, cfg.mmu, true), DEFINE_PROP_BOOL("pmp", RISCVCPU, cfg.pmp, true), + DEFINE_PROP_BOOL("debug", RISCVCPU, cfg.debug, false), DEFINE_PROP_STRING("priv_spec", RISCVCPU, cfg.priv_spec), DEFINE_PROP_STRING("vext_spec", RISCVCPU, cfg.vext_spec), diff --git a/target/riscv/cpu.h b/target/riscv/cpu.h index 5d1259d4ae..34c22d5d3b 100644 --- a/target/riscv/cpu.h +++ b/target/riscv/cpu.h @@ -79,7 +79,8 @@ enum { RISCV_FEATURE_PMP, RISCV_FEATURE_EPMP, RISCV_FEATURE_MISA, - RISCV_FEATURE_AIA + RISCV_FEATURE_AIA, + RISCV_FEATURE_DEBUG }; /* Privileged specification version */ @@ -405,6 +406,7 @@ struct RISCVCPUConfig { bool pmp; bool epmp; bool aia; + bool debug; uint64_t resetvec; }; -- 2.11.0