From: Benjamin Herrenschmidt <b...@kernel.crashing.org>
This creates a legacy PCIe->PCI bridge under the PHB by default to which
a bunch of standard devices are attached. Currently:
- VGA (as specified by -vga)
- USB (with keyboard and mouse if graphcis is enabled)
- AHCI
- e1000
This gives us something close to a standard OpenPower platform.
Signed-off-by: Benjamin Herrenschmidt <b...@kernel.crashing.org>
[clg: updated for qemu-2.9
reworked pnv_create_pci_legacy_bridge() ]
Signed-off-by: Cédric Le Goater <c...@kaod.org>
---
hw/ppc/pnv.c | 111 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 111 insertions(+)
diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c
index db6e078edcea..766e6cf4bc12 100644
--- a/hw/ppc/pnv.c
+++ b/hw/ppc/pnv.c
@@ -48,6 +48,10 @@
#include "hw/pci/pci_bridge.h"
#include "hw/pci/msi.h"
#include "hw/pci-host/pnv_phb3.h"
+#include "hw/usb.h"
+#include "hw/ide/pci.h"
+#include "hw/ide/ahci.h"
+#include "net/net.h"
#include <libfdt.h>
@@ -573,6 +577,87 @@ static ISABus *pnv_isa_create(PnvChip *chip)
return isa_bus;
}
+
+/* Returns whether we want to use VGA or not */
+static int pnv_vga_init(PCIBus *pci_bus)
+{
+ switch (vga_interface_type) {
+ case VGA_NONE:
+ return false;
+ case VGA_DEVICE:
+ return true;
+ case VGA_STD:
+ case VGA_VIRTIO:
+ return pci_vga_init(pci_bus) != NULL;
+ default:
+ fprintf(stderr, "This vga model is not supported,"
+ "currently it only supports -vga std\n");
+ exit(0);
+ }
+}
+
+static void pnv_nic_init(PCIBus *pci_bus)
+{
+ int i;
+
+ for (i = 0; i < nb_nics; i++) {
+ NICInfo *nd = &nd_table[i];
+ DeviceState *dev;
+ PCIDevice *pdev;
+ Error *err = NULL;
+
+ pdev = pci_create(pci_bus, -1, "e1000");
+ dev = &pdev->qdev;
+ qdev_set_nic_properties(dev, nd);
+ object_property_set_bool(OBJECT(dev), true, "realized", &err);
+ if (err) {
+ error_report_err(err);
+ object_unparent(OBJECT(dev));
+ exit(1);
+ }
+ }
+}
+
+#define MAX_SATA_PORTS 6
+
+static void pnv_storage_init(PCIBus *pci_bus)
+{
+ DriveInfo *hd[MAX_SATA_PORTS];
+ PCIDevice *ahci;
+
+ /* Add an AHCI device. We use an ICH9 since that's all we have
+ * at hand for PCI AHCI but it shouldn't really matter
+ */
+ ahci = pci_create_simple(pci_bus, -1, "ich9-ahci");
+ g_assert(MAX_SATA_PORTS == ICH_AHCI(ahci)->ahci.ports);
+ ide_drive_get(hd, ICH_AHCI(ahci)->ahci.ports);
+ ahci_ide_create_devs(ahci, hd);
+}
+
+static PCIBus *pnv_create_pci_legacy_bridge(PnvPhb3State *phb,
+ uint8_t chassis_nr)
+{
+ PCIDevice *dev;
+ PCIHostState *pcih = PCI_HOST_BRIDGE(phb);
+ PCIDevice *pdev;
+ PCIBus *parent;
+
+ /* Add root complex */
+ pdev = pci_create_multifunction(pcih->bus, 0, false, TYPE_PNV_PHB3_RC);
+ qdev_prop_set_uint8(&pdev->qdev, "chassis", phb->chip_id * 4 +
phb->phb_id);
+ qdev_prop_set_uint16(&pdev->qdev, "slot", 1);
+ qdev_init_nofail(&pdev->qdev);
+
+ /* Setup bus for that chip */
+ parent = pci_bridge_get_sec_bus(PCI_BRIDGE(pdev));
+
+ dev = pci_create_multifunction(parent, 0, false, "pci-bridge");
+ qdev_prop_set_uint8(&dev->qdev, "chassis_nr", chassis_nr);
+ dev->qdev.id = "pci";
+ qdev_init_nofail(&dev->qdev);
+ return pci_bridge_get_sec_bus(PCI_BRIDGE(dev));
+}
+
static void ppc_powernv_init(MachineState *machine)
{
PnvMachineState *pnv = POWERNV_MACHINE(machine);
@@ -581,6 +666,8 @@ static void ppc_powernv_init(MachineState *machine)
long fw_size;
int i;
char *chip_typename;
+ PCIBus *pbus;
+ bool has_gfx = false;
/* allocate RAM */
if (machine->ram_size < (1 * G_BYTE)) {
@@ -682,6 +769,30 @@ static void ppc_powernv_init(MachineState *machine)
* host to powerdown */
pnv->powerdown_notifier.notify = pnv_powerdown_notify;
qemu_register_powerdown_notifier(&pnv->powerdown_notifier);
+
+ /* Add a PCI switch */
+ pbus = pnv_create_pci_legacy_bridge(pnv->chips[0]->phbs[0], 128);
+
+ /* Graphics & USB */
+ if (pnv_vga_init(pbus)) {
+ has_gfx = true;
+ machine->usb |= defaults_enabled() && !machine->usb_disabled;
+ }
+ if (machine->usb) {
+ pci_create_simple(pbus, -1, "nec-usb-xhci");
+ if (has_gfx) {
+ USBBus *usb_bus = usb_bus_find(-1);
+
+ usb_create_simple(usb_bus, "usb-kbd");
+ usb_create_simple(usb_bus, "usb-mouse");
+ }
+ }
+
+ /* Add NIC */
+ pnv_nic_init(pbus);
+
+ /* Add storage */
+ pnv_storage_init(pbus);
}
/*
--
2.7.4
