mirror of
https://gitlab.com/qemu-project/qemu.git
synced 2024-10-09 00:22:25 +03:00
edf5ca5dbe
PCIDeviceClass and PCIDevice are defined in pci.h. Many users of the header don't actually need them. Similar structs live in their own headers: PCIBusClass and PCIBus in pci_bus.h, PCIBridge in pci_bridge.h, PCIHostBridgeClass and PCIHostState in pci_host.h, PCIExpressHost in pcie_host.h, and PCIERootPortClass, PCIEPort, and PCIESlot in pcie_port.h. Move PCIDeviceClass and PCIDeviceClass to new pci_device.h, along with the code that needs them. Adjust include directives. This also enables the next commit. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20221222100330.380143-6-armbru@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
75 lines
2.6 KiB
C
75 lines
2.6 KiB
C
/*
|
|
* Copyright (C) 2021 Red Hat, Inc.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License as
|
|
* published by the Free Software Foundation; either version 2 or
|
|
* (at your option) version 3 of the License.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "qemu/osdep.h"
|
|
|
|
#include "hw/pci/pci_device.h"
|
|
#include "hw/pci/pci_bus.h"
|
|
#include "qapi/error.h"
|
|
#include "ui/console.h"
|
|
|
|
/*
|
|
* Recursively (in reverse order) appends addresses of PCI devices as it moves
|
|
* up in the PCI hierarchy.
|
|
*
|
|
* @returns true on success, false when the buffer wasn't large enough
|
|
*/
|
|
static bool append_pci_address(char *buf, size_t buf_size, const PCIDevice *pci)
|
|
{
|
|
PCIBus *bus = pci_get_bus(pci);
|
|
/*
|
|
* equivalent to if (!pci_bus_is_root(bus)), but the function is not built
|
|
* with PCI_CONFIG=n, avoid using an #ifdef by checking directly
|
|
*/
|
|
if (bus->parent_dev != NULL) {
|
|
append_pci_address(buf, buf_size, bus->parent_dev);
|
|
}
|
|
|
|
size_t len = strlen(buf);
|
|
ssize_t written = snprintf(buf + len, buf_size - len, "/%02x.%x",
|
|
PCI_SLOT(pci->devfn), PCI_FUNC(pci->devfn));
|
|
|
|
return written > 0 && written < buf_size - len;
|
|
}
|
|
|
|
bool qemu_console_fill_device_address(QemuConsole *con,
|
|
char *device_address,
|
|
size_t size,
|
|
Error **errp)
|
|
{
|
|
DeviceState *dev = DEVICE(object_property_get_link(OBJECT(con),
|
|
"device",
|
|
&error_abort));
|
|
PCIDevice *pci = (PCIDevice *) object_dynamic_cast(OBJECT(dev),
|
|
TYPE_PCI_DEVICE);
|
|
|
|
if (pci == NULL) {
|
|
error_setg(errp, "Setting device address of a display device: "
|
|
"Not a PCI device.");
|
|
return false;
|
|
}
|
|
|
|
strncpy(device_address, "pci/0000", size);
|
|
if (!append_pci_address(device_address, size, pci)) {
|
|
error_setg(errp, "Setting device address of a display device: "
|
|
"Too many PCI devices in the chain.");
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|