hw/i386/acpi-build: Use AcpiPciHpState::root in acpi_set_pci_info

pcihp acpi_set_pci_info() generic code currently uses
acpi_get_i386_pci_host() to retrieve the pci host bridge.

To make it work also on ARM we get rid of that call and
directly use AcpiPciHpState::root.

Signed-off-by: Eric Auger <eric.auger@redhat.com>
Suggested-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com>
Message-Id: <20250714080639.2525563-16-eric.auger@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

diff --git a/hw/acpi/pcihp.c b/hw/acpi/pcihp.c
index 2c76edeb15eb758194d5e79408c8d1d121e8fdf6..2db2f169407a704e6e425554ea31cbb6f3636776 100644 (file)
--- a/hw/acpi/pcihp.c
+++ b/hw/acpi/pcihp.c
@@ -99,10 +99,10 @@ static void *acpi_set_bsel(PCIBus *bus, void *opaque)
     return info;
 }
 
-static void acpi_set_pci_info(bool has_bridge_hotplug)
+static void acpi_set_pci_info(AcpiPciHpState *s)
 {
     static bool bsel_is_set;
-    Object *host = acpi_get_i386_pci_host();
+    bool has_bridge_hotplug = s->use_acpi_hotplug_bridge;
     PCIBus *bus;
     BSELInfo info = { .bsel_alloc = ACPI_PCIHP_BSEL_DEFAULT,
                       .has_bridge_hotplug = has_bridge_hotplug };
@@ -112,11 +112,8 @@ static void acpi_set_pci_info(bool has_bridge_hotplug)
     }
     bsel_is_set = true;
 
-    if (!host) {
-        return;
-    }
 
-    bus = PCI_HOST_BRIDGE(host)->bus;
+    bus = s->root;
     if (bus) {
         /* Scan all PCI buses. Set property to enable acpi based hotplug. */
         pci_for_each_bus_depth_first(bus, acpi_set_bsel, NULL, &info);
@@ -266,7 +263,7 @@ static void acpi_pcihp_update(AcpiPciHpState *s)
 
 void acpi_pcihp_reset(AcpiPciHpState *s)
 {
-    acpi_set_pci_info(s->use_acpi_hotplug_bridge);
+    acpi_set_pci_info(s);
     acpi_pcihp_update(s);
 }