target/loongarch: Report error with split kernel_irqchip option

Option kernel_irqchip=split is not supported on LoongArch virt machine,
report error and exit if detect split kernel_irqchip option.

Reviewed-by: Song Gao <gaosong@loongson.cn>
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Message-ID: <20250606063431.2557468-1-maobibo@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>

diff --git a/target/loongarch/kvm/kvm.c b/target/loongarch/kvm/kvm.c
index c66bdd5302a09faef46af7e8ba4bf35ee7c96d8b..c5d488aa42c5e245d1f2de7e44c5f034b40c47b3 100644 (file)
--- a/target/loongarch/kvm/kvm.c
+++ b/target/loongarch/kvm/kvm.c
@@ -1253,7 +1253,12 @@ int kvm_arch_init(MachineState *ms, KVMState *s)
 
 int kvm_arch_irqchip_create(KVMState *s)
 {
-    return 0;
+    if (kvm_kernel_irqchip_split()) {
+        error_report("kernel_irqchip=split is not supported on LoongArch");
+        exit(1);
+    }
+
+    return kvm_check_extension(s, KVM_CAP_DEVICE_CTRL);
 }
 
 void kvm_arch_pre_run(CPUState *cs, struct kvm_run *run)