From f5664064cc808dc5057627fbb0e5d68a394f2fc1 Mon Sep 17 00:00:00 2001 From: Daniel Henrique Barboza Date: Wed, 17 May 2023 10:57:11 -0300 Subject: [PATCH] target/riscv/cpu.c: add riscv_cpu_validate_misa_mxl() Let's remove more code that is open coded in riscv_cpu_realize() and put it into a helper. Let's also add an error message instead of just asserting out if env->misa_mxl_max != env->misa_mlx. Signed-off-by: Daniel Henrique Barboza Reviewed-by: LIU Zhiwei Reviewed-by: Weiwei Li Reviewed-by: Alistair Francis Message-Id: <20230517135714.211809-9-dbarboza@ventanamicro.com> Signed-off-by: Alistair Francis --- target/riscv/cpu.c | 50 ++++++++++++++++++++++++++++++---------------- 1 file changed, 33 insertions(+), 17 deletions(-) diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c index a0589abb16..89a1a25812 100644 --- a/target/riscv/cpu.c +++ b/target/riscv/cpu.c @@ -910,6 +910,33 @@ static void riscv_cpu_disable_priv_spec_isa_exts(RISCVCPU *cpu) } } +static void riscv_cpu_validate_misa_mxl(RISCVCPU *cpu, Error **errp) +{ + RISCVCPUClass *mcc = RISCV_CPU_GET_CLASS(cpu); + CPUClass *cc = CPU_CLASS(mcc); + CPURISCVState *env = &cpu->env; + + /* Validate that MISA_MXL is set properly. */ + switch (env->misa_mxl_max) { +#ifdef TARGET_RISCV64 + case MXL_RV64: + case MXL_RV128: + cc->gdb_core_xml_file = "riscv-64bit-cpu.xml"; + break; +#endif + case MXL_RV32: + cc->gdb_core_xml_file = "riscv-32bit-cpu.xml"; + break; + default: + g_assert_not_reached(); + } + + if (env->misa_mxl_max != env->misa_mxl) { + error_setg(errp, "misa_mxl_max must be equal to misa_mxl"); + return; + } +} + /* * Check consistency between chosen extensions while setting * cpu->cfg accordingly. @@ -1232,7 +1259,6 @@ static void riscv_cpu_realize(DeviceState *dev, Error **errp) RISCVCPU *cpu = RISCV_CPU(dev); CPURISCVState *env = &cpu->env; RISCVCPUClass *mcc = RISCV_CPU_GET_CLASS(dev); - CPUClass *cc = CPU_CLASS(mcc); Error *local_err = NULL; cpu_exec_realizefn(cs, &local_err); @@ -1241,6 +1267,12 @@ static void riscv_cpu_realize(DeviceState *dev, Error **errp) return; } + riscv_cpu_validate_misa_mxl(cpu, &local_err); + if (local_err != NULL) { + error_propagate(errp, local_err); + return; + } + riscv_cpu_validate_priv_spec(cpu, &local_err); if (local_err != NULL) { error_propagate(errp, local_err); @@ -1269,22 +1301,6 @@ static void riscv_cpu_realize(DeviceState *dev, Error **errp) } #endif /* CONFIG_USER_ONLY */ - /* Validate that MISA_MXL is set properly. */ - switch (env->misa_mxl_max) { -#ifdef TARGET_RISCV64 - case MXL_RV64: - case MXL_RV128: - cc->gdb_core_xml_file = "riscv-64bit-cpu.xml"; - break; -#endif - case MXL_RV32: - cc->gdb_core_xml_file = "riscv-32bit-cpu.xml"; - break; - default: - g_assert_not_reached(); - } - assert(env->misa_mxl_max == env->misa_mxl); - riscv_cpu_validate_set_extensions(cpu, &local_err); if (local_err != NULL) { error_propagate(errp, local_err); -- 2.30.2