diff mbox series

[for-7.1,v6,27/51] target/nios2: Implement cpuid

Message ID 20220317050538.924111-28-richard.henderson@linaro.org
State Superseded
Headers show
Series target/nios2: Shadow register set, EIC and VIC | expand

Commit Message

Richard Henderson March 17, 2022, 5:05 a.m. UTC 
Copy the existing cpu_index into the space reserved for CR_CPUID.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/nios2/cpu.c | 4 ++++
 1 file changed, 4 insertions(+)
diff mbox series

Patch

diff --git a/target/nios2/cpu.c b/target/nios2/cpu.c
index 8189937857..2f1f5e35aa 100644
--- a/target/nios2/cpu.c
+++ b/target/nios2/cpu.c
@@ -168,6 +168,7 @@  static void realize_cr_status(CPUState *cs)
 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;
 
@@ -181,6 +182,9 @@  static void nios2_cpu_realizefn(DeviceState *dev, Error **errp)
     qemu_init_vcpu(cs);
     cpu_reset(cs);
 
+    /* We have reserved storage for cpuid; might as well use it. */
+    cpu->env.ctrl[CR_CPUID] = cs->cpu_index;
+
     ncc->parent_realize(dev, errp);
 }