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spapr-pci: Change the default PCI bus naming 

Previously libvirt required the first/default PCI bus to have name "pci".
Since QEMU can support multiple buses now, libvirt wants "pci.0" now.

This removes custom bus name and lets QEMU make up default names.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Andreas Färber <afaerber@suse.de>
master
Alexey Kardashevskiy 2014-03-06 14:11:00 +11:00 committed by Andreas Färber
parent cdccf7d7e7
commit 1b8601b0ea
1 changed files with 2 additions and 21 deletions
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23
hw/ppc/spapr_pci.c
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@ -510,7 +510,6 @@ static int spapr_phb_init(SysBusDevice *s)
DeviceState *dev = DEVICE(s);
sPAPRPHBState *sphb = SPAPR_PCI_HOST_BRIDGE(s);
PCIHostState *phb = PCI_HOST_BRIDGE(s);
const char *busname;
char *namebuf;
int i;
PCIBus *bus;
@ -594,26 +593,8 @@ static int spapr_phb_init(SysBusDevice *s)
get_system_io(), 0, SPAPR_PCI_IO_WIN_SIZE);
memory_region_add_subregion(get_system_memory(), sphb->io_win_addr,
&sphb->iowindow);
/*
* Selecting a busname is more complex than you'd think, due to
* interacting constraints. If the user has specified an id
* explicitly for the phb , then we want to use the qdev default
* of naming the bus based on the bridge device (so the user can
* then assign devices to it in the way they expect). For the
* first / default PCI bus (index=0) we want to use just "pci"
* because libvirt expects there to be a bus called, simply,
* "pci". Otherwise, we use the same name as in the device tree,
* since it's unique by construction, and makes the guest visible
* BUID clear.
*/
if (dev->id) {
busname = NULL;
} else if (sphb->index == 0) {
busname = "pci";
} else {
busname = sphb->dtbusname;
}
bus = pci_register_bus(dev, busname,
bus = pci_register_bus(dev, NULL,
pci_spapr_set_irq, pci_spapr_map_irq, sphb,
&sphb->memspace, &sphb->iospace,
PCI_DEVFN(0, 0), PCI_NUM_PINS, TYPE_PCI_BUS);