qemu/Revert-hw-virtio-virtio-iommu-pci-Enforce-the-device.patch

From f66f64cf3ca968db2ca7f45bfd125ec7d85624e5 Mon Sep 17 00:00:00 2001
From: jiangdongxu <jiangdongxu1@huawei.com>
Date: Mon, 4 Dec 2023 17:30:02 +0800
Subject: [PATCH] Revert "hw/virtio/virtio-iommu-pci: Enforce the device is
 plugged on the root bus"

This reverts commit a2323aa79da71c92e818306f1e18184619309a35.

Signed-off-by: jiangdongxu <jiangdongxu1@huawei.com>
---
 hw/virtio/virtio-iommu-pci.c | 13 +++----------
 1 file changed, 3 insertions(+), 10 deletions(-)

diff --git a/hw/virtio/virtio-iommu-pci.c b/hw/virtio/virtio-iommu-pci.c
index 37eb2fb979..a160ae6b41 100644
--- a/hw/virtio/virtio-iommu-pci.c
+++ b/hw/virtio/virtio-iommu-pci.c
@@ -44,7 +44,6 @@ static Property virtio_iommu_pci_properties[] = {
 static void virtio_iommu_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
 {
     VirtIOIOMMUPCI *dev = VIRTIO_IOMMU_PCI(vpci_dev);
-    PCIBus *pbus = pci_get_bus(&vpci_dev->pci_dev);
     DeviceState *vdev = DEVICE(&dev->vdev);
     VirtIOIOMMU *s = VIRTIO_IOMMU(vdev);
 
@@ -66,17 +65,11 @@ static void virtio_iommu_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
             s->reserved_regions[i].type != VIRTIO_IOMMU_RESV_MEM_T_MSI) {
             error_setg(errp, "reserved region %d has an invalid type", i);
             error_append_hint(errp, "Valid values are 0 and 1\n");
-            return;
-	}
+        }
     }
-    if (!pci_bus_is_root(pbus)) {
-        error_setg(errp, "virtio-iommu-pci must be plugged on the root bus");
-        return;
-    }
-
     object_property_set_link(OBJECT(dev), "primary-bus",
-                             OBJECT(pbus), &error_abort);
-
+                             OBJECT(pci_get_bus(&vpci_dev->pci_dev)),
+                             &error_abort);
     virtio_pci_force_virtio_1(vpci_dev);
     qdev_realize(vdev, BUS(&vpci_dev->bus), errp);
 }
-- 
2.27.0