target/riscv: Add Zaamo and Zalrsc extension infrastructure

These extensions represent the atomic operations from A (Zaamo) and the
Load-Reserved/Store-Conditional operations from A (Zalrsc)

Signed-off-by: Rob Bradford <rbradford@rivosinc.com>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Message-ID: <20240123111030.15074-2-rbradford@rivosinc.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/target/riscv/cpu_cfg.h b/target/riscv/cpu_cfg.h
index e241922f89..833bf58217 100644
--- a/target/riscv/cpu_cfg.h
+++ b/target/riscv/cpu_cfg.h
@@ -78,7 +78,9 @@ struct RISCVCPUConfig {
     bool ext_svnapot;
     bool ext_svpbmt;
     bool ext_zdinx;
+    bool ext_zaamo;
     bool ext_zacas;
+    bool ext_zalrsc;
     bool ext_zawrs;
     bool ext_zfa;
     bool ext_zfbfmin;