[v2,1/8] target/loongarch: Add post init function for kvm mode

Commit Message

Bibo Mao Feb. 24, 2025, 3:27 a.m. UTC

Some features such as LBT and PMU are implemented in kvm mode,
With para-virt features in future, post init function is added
for kvm mode, so that property for these features will be created
in kvm post init function.

Signed-off-by: Bibo Mao <[e-mail]>
---
 target/loongarch/cpu.c     | 2 +-
 target/loongarch/cpu.h     | 8 ++++++++
 target/loongarch/kvm/kvm.c | 4 ++++
 3 files changed, 13 insertions(+), 1 deletion(-)

Patch

diff --git a/target/loongarch/cpu.c b/target/loongarch/cpu.c
index e91f4a5239..40f753167f 100644
--- a/target/loongarch/cpu.c
+++ b/target/loongarch/cpu.c
@@ -759,7 +759,7 @@  void loongarch_cpu_post_init(Object *obj)
                                  loongarch_set_pmu);
         object_property_set_description(obj, "pmu",
                                    "Set off to performance monitor unit.");
-
+        kvm_loongarch_cpu_post_init(cpu);
     } else {
         cpu->lbt = ON_OFF_AUTO_OFF;
         cpu->pmu = ON_OFF_AUTO_OFF;
diff --git a/target/loongarch/cpu.h b/target/loongarch/cpu.h
index f2a23b7a43..dd759a562f 100644
--- a/target/loongarch/cpu.h
+++ b/target/loongarch/cpu.h
@@ -491,4 +491,12 @@  static inline void cpu_get_tb_cpu_state(CPULoongArchState *env, vaddr *pc,
 
 void loongarch_cpu_post_init(Object *obj);
 
+#ifdef CONFIG_USER_ONLY
+static inline void kvm_loongarch_cpu_post_init(LoongArchCPU *cpu)
+{
+}
+#else
+void kvm_loongarch_cpu_post_init(LoongArchCPU *cpu);
+#endif
+
 #endif /* LOONGARCH_CPU_H */
diff --git a/target/loongarch/kvm/kvm.c b/target/loongarch/kvm/kvm.c
index a3f55155b0..516aba180f 100644
--- a/target/loongarch/kvm/kvm.c
+++ b/target/loongarch/kvm/kvm.c
@@ -1009,6 +1009,10 @@  int kvm_arch_init_vcpu(CPUState *cs)
     return ret;
 }
 
+void kvm_loongarch_cpu_post_init(LoongArchCPU *cpu)
+{
+}
+
 int kvm_arch_destroy_vcpu(CPUState *cs)
 {
     return 0;