[v2,03/17] bsd-user: Implement RISC-V CPU register cloning and reset functions

Commit Message

Ajeet Singh Aug. 16, 2024, 5:09 p.m. UTC

From: Mark Corbin <[e-mail]>

Added functions for cloning CPU registers and resetting the CPU state
for RISC-V architecture.

Signed-off-by: Mark Corbin <[e-mail]>
Signed-off-by: Ajeet Singh <[e-mail]>
Reviewed-by: Richard Henderson <[e-mail]>
---
 bsd-user/riscv/target_arch_cpu.h | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

Patch

diff --git a/bsd-user/riscv/target_arch_cpu.h b/bsd-user/riscv/target_arch_cpu.h
index 5b436b2ac9..bdb527573b 100644
--- a/bsd-user/riscv/target_arch_cpu.h
+++ b/bsd-user/riscv/target_arch_cpu.h
@@ -130,4 +130,18 @@  static inline void target_cpu_loop(CPURISCVState *env)
     }
 }
 
+static inline void target_cpu_clone_regs(CPURISCVState *env, target_ulong newsp)
+{
+    if (newsp) {
+        env->gpr[xSP] = newsp;
+    }
+
+    env->gpr[xA0] = 0; /* a0 */
+    env->gpr[xT0] = 0; /* t0 */
+}
+
+static inline void target_cpu_reset(CPUArchState *env)
+{
+}
+
 #endif /* TARGET_ARCH_CPU_H */