From 3d449bc6030904ead784a4e4644c9640c2152796 Mon Sep 17 00:00:00 2001 From: Jason Chien Date: Wed, 9 Aug 2023 10:22:50 +0000 Subject: hw/pci-host: Allow extended config space access for Designware PCIe host In pcie_bus_realize(), a root bus is realized as a PCIe bus and a non-root bus is realized as a PCIe bus if its parent bus is a PCIe bus. However, the child bus "dw-pcie" is realized before the parent bus "pcie" which is the root PCIe bus. Thus, the extended configuration space is not accessible on "dw-pcie". The issue can be resolved by adding the PCI_BUS_EXTENDED_CONFIG_SPACE flag to "pcie" before "dw-pcie" is realized. Signed-off-by: Jason Chien Message-Id: <20230809102257.25121-1-jason.chien@sifive.com> Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin Reviewed-by: Frank Chang Signed-off-by: Jason Chien <jason.chien@sifive.com>
--- hw/pci-host/designware.c | 1 + 1 file changed, 1 insertion(+) (limited to 'hw/pci-host/designware.c') diff --git a/hw/pci-host/designware.c b/hw/pci-host/designware.c index 9e183caa48..388d252ee2 100644 --- a/hw/pci-host/designware.c +++ b/hw/pci-host/designware.c @@ -694,6 +694,7 @@ static void designware_pcie_host_realize(DeviceState *dev, Error **errp) &s->pci.io, 0, 4, TYPE_PCIE_BUS); + pci->bus->flags |= PCI_BUS_EXTENDED_CONFIG_SPACE; memory_region_init(&s->pci.address_space_root, OBJECT(s), -- cgit v1.2.3