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[PATCH] pci-host: Allow extended config space access for PowerNV PHB4 mo

From: Christophe Lombard
Subject: [PATCH] pci-host: Allow extended config space access for PowerNV PHB4 model
Date: Tue, 9 Nov 2021 15:50:53 +0100

The PCIe extended configuration space on the device is not currently
accessible to the host. if by default,  it is still inaccessible for
conventional for PCIe buses, add the current flag
PCI_BUS_EXTENDED_CONFIG_SPACE on the root bus permits PCI-E extended
config space access.

Signed-off-by: Christophe Lombard <clombard@linux.vnet.ibm.com>
 hw/pci-host/pnv_phb4.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/hw/pci-host/pnv_phb4.c b/hw/pci-host/pnv_phb4.c
index 5c375a9f28..40b793201a 100644
--- a/hw/pci-host/pnv_phb4.c
+++ b/hw/pci-host/pnv_phb4.c
@@ -1205,6 +1205,7 @@ static void pnv_phb4_realize(DeviceState *dev, Error 
                                      &phb->pci_mmio, &phb->pci_io,
                                      0, 4, TYPE_PNV_PHB4_ROOT_BUS);
     pci_setup_iommu(pci->bus, pnv_phb4_dma_iommu, phb);
+    pci->bus->flags |= PCI_BUS_EXTENDED_CONFIG_SPACE;
     /* Add a single Root port */
     qdev_prop_set_uint8(DEVICE(&phb->root), "chassis", phb->chip_id);

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