diff options
| author | Jason Chien <jason.chien@sifive.com> | 2023-08-09 10:22:50 +0000 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2023-08-11 12:15:24 -0400 |
| commit | 3d449bc6030904ead784a4e4644c9640c2152796 (patch) | |
| tree | f4ada440886488ffdd26979872502d53876e74a8 | |
| parent | 15b11a1da6a4b7c6b8bb37883f52b544dee2b8fd (diff) | |
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 <jason.chien@sifive.com>
Message-Id: <20230809102257.25121-1-jason.chien@sifive.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Frank Chang <frank.chang@sifive.com>
Signed-off-by: Jason Chien <<a href="mailto:jason.chien@sifive.com" target="_blank">jason.chien@sifive.com</a>><br>
| -rw-r--r-- | hw/pci-host/designware.c | 1 |
1 files changed, 1 insertions, 0 deletions
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), |