[PATCH] target/riscv: add zicsr/zifencei to isa_string

["Hongren (Zenithal) Zheng" <i@zenithal.me>]

Zicsr/Zifencei is not in 'I' since ISA version 20190608,
thus to fully express the capability of the CPU,
they should be exposed in isa_string.

Signed-off-by: Hongren (Zenithal) Zheng <i@zenithal.me>
---
 target/riscv/cpu.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c
index 6d01569cad..61fa9b97a4 100644
--- a/target/riscv/cpu.c
+++ b/target/riscv/cpu.c
@@ -1027,6 +1027,8 @@ static void riscv_isa_string_ext(RISCVCPU *cpu, char **isa_str, int max_str_len)
      *    extensions by an underscore.
      */
     struct isa_ext_data isa_edata_arr[] = {
+        ISA_EDATA_ENTRY(zicsr, ext_icsr),
+        ISA_EDATA_ENTRY(zifencei, ext_ifencei),
         ISA_EDATA_ENTRY(zfh, ext_zfh),
         ISA_EDATA_ENTRY(zfhmin, ext_zfhmin),
         ISA_EDATA_ENTRY(zfinx, ext_zfinx),
-- 
2.35.1