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[PULL,v2,33/47] bsd-user: Implement RISC-V CPU register cloning and reset functions

Message ID 20240924221751.2688389-34-alistair.francis@wdc.com
State New
Headers show
Series [PULL,v2,01/47] target/riscv: Add a property to set vl to ceil(AVL/2) | expand

Commit Message

Alistair Francis Sept. 24, 2024, 10:17 p.m. UTC 
From: Mark Corbin <mark@dibsco.co.uk>

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

Signed-off-by: Mark Corbin <mark@dibsco.co.uk>
Signed-off-by: Ajeet Singh <itachis@FreeBSD.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20240916155119.14610-4-itachis@FreeBSD.org>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
---
 bsd-user/riscv/target_arch_cpu.h | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
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Patch

diff --git a/bsd-user/riscv/target_arch_cpu.h b/bsd-user/riscv/target_arch_cpu.h
index 9c31d9dc4c..a93ea3915a 100644
--- a/bsd-user/riscv/target_arch_cpu.h
+++ b/bsd-user/riscv/target_arch_cpu.h
@@ -131,4 +131,18 @@  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;
+    env->gpr[xT0] = 0;
+}
+
+static inline void target_cpu_reset(CPUArchState *env)
+{
+}
+
 #endif /* TARGET_ARCH_CPU_H */