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pci-hotplug: make them aware of pci domain. 

add helper function which converts root bus to pci domain.
make them aware of pci domain.

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Isaku Yamahata 2010-05-28 18:30:46 +09:00 committed by Michael S. Tsirkin
parent 1b4e8f732d
commit e075e788c9
3 changed files with 26 additions and 4 deletions
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7
hw/pci-hotplug.c
View File

@ -124,7 +124,7 @@ void drive_hot_add(Monitor *mon, const QDict *qdict)
if (pci_read_devaddr(mon, pci_addr, &dom, &pci_bus, &slot)) {
goto err;
}
dev = pci_find_device(pci_find_root_bus(0), pci_bus, slot, 0);
dev = pci_find_device(pci_find_root_bus(dom), pci_bus, slot, 0);
if (!dev) {
monitor_printf(mon, "no pci device with address %s\n", pci_addr);
goto err;
@ -252,7 +252,8 @@ void pci_device_hot_add(Monitor *mon, const QDict *qdict)
if (dev) {
monitor_printf(mon, "OK domain %d, bus %d, slot %d, function %d\n",
0, pci_bus_num(dev->bus), PCI_SLOT(dev->devfn),
pci_find_domain(dev->bus),
pci_bus_num(dev->bus), PCI_SLOT(dev->devfn),
PCI_FUNC(dev->devfn));
} else
monitor_printf(mon, "failed to add %s\n", opts);
@ -269,7 +270,7 @@ int pci_device_hot_remove(Monitor *mon, const char *pci_addr)
return -1;
}
d = pci_find_device(pci_find_root_bus(0), bus, slot, 0);
d = pci_find_device(pci_find_root_bus(dom), bus, slot, 0);
if (!d) {
monitor_printf(mon, "slot %d empty\n", slot);
return -1;

22
hw/pci.c
View File

@ -200,6 +200,26 @@ PCIBus *pci_find_root_bus(int domain)
return NULL;
}
int pci_find_domain(const PCIBus *bus)
{
PCIDevice *d;
struct PCIHostBus *host;
/* obtain root bus */
while ((d = bus->parent_dev) != NULL) {
bus = d->bus;
}
QLIST_FOREACH(host, &host_buses, next) {
if (host->bus == bus) {
return host->domain;
}
}
abort(); /* should not be reached */
return -1;
}
void pci_bus_new_inplace(PCIBus *bus, DeviceState *parent,
const char *name, int devfn_min)
{
@ -505,7 +525,7 @@ PCIBus *pci_get_bus_devfn(int *devfnp, const char *devaddr)
}
*devfnp = slot << 3;
return pci_find_bus(pci_find_root_bus(0), bus);
return pci_find_bus(pci_find_root_bus(dom), bus);
}
static void pci_init_cmask(PCIDevice *dev)

1
hw/pci.h
View File

@ -218,6 +218,7 @@ PCIDevice *pci_nic_init_nofail(NICInfo *nd, const char *default_model,
int pci_bus_num(PCIBus *s);
void pci_for_each_device(PCIBus *bus, int bus_num, void (*fn)(PCIBus *bus, PCIDevice *d));
PCIBus *pci_find_root_bus(int domain);
int pci_find_domain(const PCIBus *bus);
PCIBus *pci_find_bus(PCIBus *bus, int bus_num);
PCIDevice *pci_find_device(PCIBus *bus, int bus_num, int slot, int function);
PCIBus *pci_get_bus_devfn(int *devfnp, const char *devaddr);