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Re: [PATCH v6 2/9] target/riscv: introduce riscv_cpu_cfg()

From: LIU Zhiwei
Subject: Re: [PATCH v6 2/9] target/riscv: introduce riscv_cpu_cfg()
Date: Fri, 17 Feb 2023 10:55:14 +0800
User-agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.7.2

On 2023/2/17 5:55, Daniel Henrique Barboza wrote:
We're going to do changes that requires accessing the RISCVCPUConfig
struct from the RISCVCPU, having access only to a CPURISCVState 'env'
pointer. Add a helper to make the code easier to read.

Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
 target/riscv/cpu.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/target/riscv/cpu.h b/target/riscv/cpu.h
index 01803a020d..5e9626837b 100644
--- a/target/riscv/cpu.h
+++ b/target/riscv/cpu.h
@@ -653,6 +653,11 @@ static inline RISCVMXL riscv_cpu_mxl(CPURISCVState *env)
 #define riscv_cpu_mxl_bits(env) (1UL << (4 + riscv_cpu_mxl(env)))
+static inline const RISCVCPUConfig *riscv_cpu_cfg(CPURISCVState *env)
+    return &env_archcpu(env)->cfg;

There many places in branch should use this interface, not just in this patch set. 

For example,

static RISCVException seed(CPURISCVState *env, int csrno)
    RISCVCPU *cpu = env_archcpu(env);

    if (!cpu->cfg.ext_zkr) {

The cpu here will not be used, except referring to the cfg.

Do you mind to unify the use?


 #if defined(TARGET_RISCV32)
 #define cpu_recompute_xl(env)  ((void)(env), MXL_RV32)

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