[PATCH V4 4/4] target-i386: add i440fx 0xcf8 port as coalesced_pio

Peng Hao
2018-08-25T12:19:50Z

Signed-off-by: Peng Hao <peng.hao2@zte.com.cn>
---
hw/pci-host/piix.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/hw/pci-host/piix.c b/hw/pci-host/piix.c
index 0e60834..da73743 100644
--- a/hw/pci-host/piix.c
+++ b/hw/pci-host/piix.c
@@ -327,6 +327,10 @@ static void i440fx_pcihost_realize(DeviceState *dev, Error **errp)

sysbus_add_io(sbd, 0xcfc, &s->data_mem);
sysbus_init_ioports(sbd, 0xcfc, 4);
+
+ /* register i440fx 0xcf8 port as coalesced pio */
+ memory_region_set_flush_coalesced(&s->data_mem);
+ memory_region_add_coalescing(&s->conf_mem, 0, 4);
}

static void i440fx_realize(PCIDevice *dev, Error **errp)
--
1.8.3.1