From: Ruslan Ruslichenko <Ruslan_Ruslichenko@epam.com>

Add a new gsi-irqs array property to the GPEX PCI host controller.
This enables them to be configured on realize callback.

This is required to init GPEX PCI host from a static configuration,
such as Hardware device tree.

Signed-off-by: Ruslan Ruslichenko <Ruslan_Ruslichenko@epam.com>
---
 hw/pci-host/gpex.c         | 6 ++++++
 include/hw/pci-host/gpex.h | 3 +++
 2 files changed, 9 insertions(+)

diff --git a/hw/pci-host/gpex.c b/hw/pci-host/gpex.c
index e66784ce51..6125b2c319 100644
--- a/hw/pci-host/gpex.c
+++ b/hw/pci-host/gpex.c
@@ -148,6 +148,10 @@ static void gpex_host_realize(DeviceState *dev, Error **errp)
         s->irq[i].irq_num = -1;
     }
 
+    for (i = 0; i < s->gsi_irq_num; i++) {
+        gpex_set_irq_num(s, i, s->gsi_irqs[i]);
+    }
+
     pci->bus = pci_register_root_bus(dev, "pcie.0", gpex_set_irq,
                                      gpex_swizzle_map_irq_fn,
                                      s, &s->io_mmio, &s->io_ioport, 0,
@@ -190,6 +194,8 @@ static const Property gpex_host_properties[] = {
     DEFINE_PROP_SIZE(PCI_HOST_ABOVE_4G_MMIO_SIZE, GPEXHost,
                      gpex_cfg.mmio64.size, 0),
     DEFINE_PROP_UINT8("num-irqs", GPEXHost, num_irqs, PCI_NUM_PINS),
+    DEFINE_PROP_ARRAY("gsi-irqs", GPEXHost, gsi_irq_num,
+                      gsi_irqs, qdev_prop_uint32, uint32_t),
 };
 
 static void gpex_host_class_init(ObjectClass *klass, const void *data)
diff --git a/include/hw/pci-host/gpex.h b/include/hw/pci-host/gpex.h
index 1da9c85bce..f8e9874756 100644
--- a/include/hw/pci-host/gpex.h
+++ b/include/hw/pci-host/gpex.h
@@ -64,6 +64,9 @@ struct GPEXHost {
     GPEXIrq *irq;
     uint8_t num_irqs;
 
+    uint32_t *gsi_irqs;
+    uint32_t gsi_irq_num;
+
     bool allow_unmapped_accesses;
 
     struct GPEXConfig gpex_cfg;
-- 
2.43.0