[PATCH 09/15] hw/intc/loongarch_pch_msi: Inject MSI interrupt to kernel

[Bibo Mao]

If property irqchip_in_kernel is enabled, MSI interrupt can be injected
with API kvm_irqchip_send_msi() to KVM.

Signed-off-by: Bibo Mao <maob...@loongson.cn>
---
 hw/intc/loongarch_pch_msi.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/hw/intc/loongarch_pch_msi.c b/hw/intc/loongarch_pch_msi.c
index e2dacc39bf..d196ee39a8 100644
--- a/hw/intc/loongarch_pch_msi.c
+++ b/hw/intc/loongarch_pch_msi.c
@@ -27,6 +27,15 @@ static void loongarch_msi_mem_write(void *opaque, hwaddr 
addr,
     LoongArchPCHMSI *s = (LoongArchPCHMSI *)opaque;
     int irq_num;
 
+    if (kvm_enabled() && s->irqchip_in_kernel) {
+        MSIMessage msg;
+
+        msg.address = addr;
+        msg.data = val;
+        kvm_irqchip_send_msi(kvm_state, msg);
+        return;
+    }
+
     /*
      * vector number is irq number from upper extioi intc
      * need subtract irq base to get msi vector offset
-- 
2.39.3