Re: [PATCH v3 2/6] target/riscv: hardwire mstatus.FS to zero when enable zfinx

[Richard Henderson]

On 1/7/22 3:27 AM, Weiwei Li wrote:
@@ -342,6 +342,11 @@ static void mark_fs_dirty(DisasContext *ctx)
  {
      TCGv tmp;
  
+    /* hardwire mstatus.FS to zero when enable zfinx */
+    if (ctx->ext_zfinx) {
+        return;
+    }
+
      if (ctx->mstatus_fs != MSTATUS_FS) {

This should also test RVF.

Finally, there needs to be a change to write_misa -- MSTATUS_FS needs to be cleared when 
RVF is disabled.


r~