[PULL 08/13] target/riscv: add cfg properties for zfinx, zdinx and zhinx{min}

[Alistair Francis <alistair.francis@opensource.wdc.com>]

From: Weiwei Li <liweiwei@iscas.ac.cn>

Co-authored-by: ardxwe <ardxwe@gmail.com>
Signed-off-by: Weiwei Li <liweiwei@iscas.ac.cn>
Signed-off-by: Junqiang Wang <wangjunqiang@iscas.ac.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20220211043920.28981-2-liweiwei@iscas.ac.cn>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
---
 target/riscv/cpu.h |  4 ++++
 target/riscv/cpu.c | 12 ++++++++++++
 2 files changed, 16 insertions(+)

diff --git a/target/riscv/cpu.h b/target/riscv/cpu.h
index 8183fb86d5..9ba05042ed 100644
--- a/target/riscv/cpu.h
+++ b/target/riscv/cpu.h
@@ -362,8 +362,12 @@ struct RISCVCPUConfig {
     bool ext_svinval;
     bool ext_svnapot;
     bool ext_svpbmt;
+    bool ext_zdinx;
     bool ext_zfh;
     bool ext_zfhmin;
+    bool ext_zfinx;
+    bool ext_zhinx;
+    bool ext_zhinxmin;
     bool ext_zve32f;
     bool ext_zve64f;
 
diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c
index b0a40b83e7..55371b1aa5 100644
--- a/target/riscv/cpu.c
+++ b/target/riscv/cpu.c
@@ -587,6 +587,11 @@ static void riscv_cpu_realize(DeviceState *dev, Error **errp)
             cpu->cfg.ext_d = true;
         }
 
+        if (cpu->cfg.ext_zdinx || cpu->cfg.ext_zhinx ||
+            cpu->cfg.ext_zhinxmin) {
+            cpu->cfg.ext_zfinx = true;
+        }
+
         /* Set the ISA extensions, checks should have happened above */
         if (cpu->cfg.ext_i) {
             ext |= RVI;
@@ -665,6 +670,13 @@ static void riscv_cpu_realize(DeviceState *dev, Error **errp)
         if (cpu->cfg.ext_j) {
             ext |= RVJ;
         }
+        if (cpu->cfg.ext_zfinx && ((ext & (RVF | RVD)) || cpu->cfg.ext_zfh ||
+                                   cpu->cfg.ext_zfhmin)) {
+            error_setg(errp,
+                    "'Zfinx' cannot be supported together with 'F', 'D', 'Zfh',"
+                    " 'Zfhmin'");
+            return;
+        }
 
         set_misa(env, env->misa_mxl, ext);
     }
-- 
2.35.1