[PATCH v4 18/33] target/nios2: Implement cpuid

[Richard Henderson]

Copy the existing cpu_index into the space reserved for CR_CPUID.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/nios2/cpu.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/target/nios2/cpu.c b/target/nios2/cpu.c
index 189adf111c..fbcb4da737 100644
--- a/target/nios2/cpu.c
+++ b/target/nios2/cpu.c
@@ -159,6 +159,7 @@ static ObjectClass *nios2_cpu_class_by_name(const char 
*cpu_model)
 static void nios2_cpu_realizefn(DeviceState *dev, Error **errp)
 {
     CPUState *cs = CPU(dev);
+    Nios2CPU *cpu = NIOS2_CPU(cs);
     Nios2CPUClass *ncc = NIOS2_CPU_GET_CLASS(dev);
     Error *local_err = NULL;
 
@@ -171,6 +172,9 @@ static void nios2_cpu_realizefn(DeviceState *dev, Error 
**errp)
     qemu_init_vcpu(cs);
     cpu_reset(cs);
 
+    /* We have reserved storage for ctrl[CR_CPUID]; might as well use it. */
+    cpu->env.cpuid = cs->cpu_index;
+
     ncc->parent_realize(dev, errp);
 }
 
-- 
2.25.1