[PATCH v2] hw/pci-host/aspeed_pcie: Fix global MSI setting during class initialization

[Jamin Lin <jamin_lin@aspeedtech.com>]

The ASPEED PCIe class may be registered for machines that do not
instantiate a PCIe root complex. Updating the global msi_nonbroken
flag from class_init() therefore affects unrelated machines.

Defer the update to the per-device realize handler, so the flag
changes only when an ASPEED PCIe root complex is actually
instantiated.

Reported-by: Marcelo Manzo <marcelomanzo@gmail.com>
Fixes: f002aa35f320 ("hw/pci-host/aspeed: Add AST2600 PCIe config space and host bridge")
Reviewed-by: Philippe Mathieu-Daudé <philmd@oss.qualcomm.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Jamin Lin <jamin_lin@aspeedtech.com>
---
 hw/pci-host/aspeed_pcie.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/hw/pci-host/aspeed_pcie.c b/hw/pci-host/aspeed_pcie.c
index b46eb74234..ceb010f213 100644
--- a/hw/pci-host/aspeed_pcie.c
+++ b/hw/pci-host/aspeed_pcie.c
@@ -181,6 +181,8 @@ static void aspeed_pcie_rc_realize(DeviceState *dev, Error **errp)
     g_autofree char *dram_alias_name = NULL;
     g_autofree char *root_bus_name = NULL;
 
+    msi_nonbroken = true;
+
     /* PCI configuration space */
     pcie_host_mmcfg_init(pex, PCIE_MMCFG_SIZE_MAX);
     sysbus_init_mmio(sbd, &pex->mmio);
@@ -294,8 +296,6 @@ static void aspeed_pcie_rc_class_init(ObjectClass *klass, const void *data)
 
     hc->root_bus_path = aspeed_pcie_rc_root_bus_path;
     device_class_set_props(dc, aspeed_pcie_rc_props);
-
-    msi_nonbroken = true;
 }
 
 /*
-- 
2.43.0