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authorAlex Williamson <alex.williamson@redhat.com>2010-06-25 11:08:59 -0600
committerAnthony Liguori <aliguori@us.ibm.com>2010-07-06 10:36:28 -0500
commit4f43c1ff3b8ce99de80db7c51423e5ba8b143802 (patch)
treef12bcb4fa986147a9ef4cbe5679aca675ca3a7f4
parent6772b9364a9ef8b44a7c4deef0544df95bf88741 (diff)
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pci: Implement BusInfo.get_dev_path()
This works great for PCI since a <segment>:<bus>:<dev>.<fn> uniquely describes a global address. No need to traverse up the qdev tree. PCI segment support is a placeholder for compatibility once we support multiple segments. Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
-rw-r--r--hw/pci.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/hw/pci.c b/hw/pci.c
index 7787005..1e77ae6 100644
--- a/hw/pci.c
+++ b/hw/pci.c
@@ -58,11 +58,13 @@ struct PCIBus {
};
static void pcibus_dev_print(Monitor *mon, DeviceState *dev, int indent);
+static char *pcibus_get_dev_path(DeviceState *dev);
static struct BusInfo pci_bus_info = {
.name = "PCI",
.size = sizeof(PCIBus),
.print_dev = pcibus_dev_print,
+ .get_dev_path = pcibus_get_dev_path,
.props = (Property[]) {
DEFINE_PROP_PCI_DEVFN("addr", PCIDevice, devfn, -1),
DEFINE_PROP_STRING("romfile", PCIDevice, romfile),
@@ -1853,6 +1855,18 @@ static void pcibus_dev_print(Monitor *mon, DeviceState *dev, int indent)
}
}
+static char *pcibus_get_dev_path(DeviceState *dev)
+{
+ PCIDevice *d = (PCIDevice *)dev;
+ char path[16];
+
+ snprintf(path, sizeof(path), "%04x:%02x:%02x.%x",
+ pci_find_domain(d->bus), d->config[PCI_SECONDARY_BUS],
+ PCI_SLOT(d->devfn), PCI_FUNC(d->devfn));
+
+ return strdup(path);
+}
+
static PCIDeviceInfo bridge_info = {
.qdev.name = "pci-bridge",
.qdev.size = sizeof(PCIBridge),