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[Qemu-devel] [PATCH v3 3/3] hw/pci-host/gpex: Implement PCI INTx routing
From: |
Eric Auger |
Subject: |
[Qemu-devel] [PATCH v3 3/3] hw/pci-host/gpex: Implement PCI INTx routing |
Date: |
Tue, 13 Jun 2017 15:31:17 +0200 |
From: Pranavkumar Sawargaonkar <address@hidden>
Now we are able to retrieve the gsi from the INTx pin, let's
enable intx_to_irq routing. From that point on, irqfd becomes
usable along with INTx when assigning a PCIe device.
Signed-off-by: Pranavkumar Sawargaonkar <address@hidden>
Signed-off-by: Tushar Jagad <address@hidden>
Signed-off-by: Eric Auger <address@hidden>
---
hw/pci-host/gpex.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/hw/pci-host/gpex.c b/hw/pci-host/gpex.c
index 22367aa4..2ec918b 100644
--- a/hw/pci-host/gpex.c
+++ b/hw/pci-host/gpex.c
@@ -53,6 +53,17 @@ int gpex_set_irq_num(GPEXHost *s, int index, uint32_t gsi)
return 0;
}
+static PCIINTxRoute gpex_route_intx_pin_to_irq(void *opaque, int pin)
+{
+ PCIINTxRoute route;
+ GPEXHost *s = opaque;
+
+ route.mode = PCI_INTX_ENABLED;
+ route.irq = (int)s->irq_num[pin];
+
+ return route;
+}
+
static void gpex_host_realize(DeviceState *dev, Error **errp)
{
PCIHostState *pci = PCI_HOST_BRIDGE(dev);
@@ -77,6 +88,7 @@ static void gpex_host_realize(DeviceState *dev, Error **errp)
&s->io_ioport, 0, 4, TYPE_PCIE_BUS);
qdev_set_parent_bus(DEVICE(&s->gpex_root), BUS(pci->bus));
+ pci_bus_set_route_irq_fn(pci->bus, gpex_route_intx_pin_to_irq);
qdev_init_nofail(DEVICE(&s->gpex_root));
}
--
2.5.5