qemu-e2k/hw/xenpv/xen_machine_pv.c
David Woodhouse 7d6eff13b3 hw/xen: use qemu_create_nic_bus_devices() to instantiate Xen NICs
When instantiating XenBus itself, for each NIC which is configured with
either the model unspecified, or set to to "xen" or "xen-net-device",
create a corresponding xen-net-device for it.

Now we can revert the previous more hackish version which relied on the
platform code explicitly registering the NICs on its own XenBus, having
returned the BusState* from xen_bus_init() itself.

This also fixes the setup for Xen PV guests, which was previously broken
in various ways and never actually managed to peer with the netdev.

Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Reviewed-by: Paul Durrant <paul@xen.org>
2024-02-02 16:23:47 +00:00

78 lines
2.3 KiB
C

/*
* QEMU Xen PV Machine
*
* Copyright (c) 2007 Red Hat
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "qemu/osdep.h"
#include "qemu/error-report.h"
#include "hw/boards.h"
#include "hw/xen/xen-legacy-backend.h"
#include "hw/xen/xen-bus.h"
#include "sysemu/block-backend.h"
#include "sysemu/sysemu.h"
static void xen_init_pv(MachineState *machine)
{
setup_xen_backend_ops();
/* Initialize backend core & drivers */
xen_be_init();
switch (xen_mode) {
case XEN_ATTACH:
/* nothing to do, libxl handles everything */
break;
case XEN_EMULATE:
error_report("xen emulation not implemented (yet)");
exit(1);
break;
default:
error_report("unhandled xen_mode %d", xen_mode);
exit(1);
break;
}
xen_be_register("vfb", &xen_framebuffer_ops);
/* configure framebuffer */
if (vga_interface_type == VGA_XENFB) {
xen_config_dev_vfb(0, "vnc");
xen_config_dev_vkbd(0);
vga_interface_created = true;
}
xen_bus_init();
/* config cleanup hook */
atexit(xen_config_cleanup);
}
static void xenpv_machine_init(MachineClass *mc)
{
mc->desc = "Xen Para-virtualized PC";
mc->init = xen_init_pv;
mc->max_cpus = 1;
mc->default_machine_opts = "accel=xen";
}
DEFINE_MACHINE("xenpv", xenpv_machine_init)