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Diffstat (limited to 'hw/pci-host/q35.c')
-rw-r--r--hw/pci-host/q35.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/hw/pci-host/q35.c b/hw/pci-host/q35.c
index 02f9576..8ce1e09 100644
--- a/hw/pci-host/q35.c
+++ b/hw/pci-host/q35.c
@@ -51,6 +51,10 @@ static void q35_host_realize(DeviceState *dev, Error **errp)
sysbus_add_io(sbd, MCH_HOST_BRIDGE_CONFIG_DATA, &pci->data_mem);
sysbus_init_ioports(sbd, MCH_HOST_BRIDGE_CONFIG_DATA, 4);
+ /* register q35 0xcf8 port as coalesced pio */
+ memory_region_set_flush_coalesced(&pci->data_mem);
+ memory_region_add_coalescing(&pci->conf_mem, 0, 4);
+
pci->bus = pci_root_bus_new(DEVICE(s), "pcie.0",
s->mch.pci_address_space,
s->mch.address_space_io,