9432e53a5b
Introduce a new dummy system device serving as parent for virtual buses. This will enable new pv backends to introduce virtual buses which are removable again opposed to system buses which are meant to stay once added. Signed-off-by: Juergen Gross <jgross@suse.com> Acked-by: Anthony PERARD <anthony.perard@citrix.com> Reviewed-by: Wei Liu <wei.liu2@citrix.com> Message-id: 1463062421-613-2-git-send-email-jgross@suse.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
153 lines
4.3 KiB
C
153 lines
4.3 KiB
C
/*
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* QEMU Xen PV Machine
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*
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* Copyright (c) 2007 Red Hat
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "qemu/osdep.h"
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#include "hw/hw.h"
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#include "hw/boards.h"
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#include "hw/sysbus.h"
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#include "hw/xen/xen_backend.h"
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#include "xen_domainbuild.h"
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#include "sysemu/block-backend.h"
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#define TYPE_XENSYSDEV "xensysdev"
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DeviceState *xen_sysdev;
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static void xen_init_pv(MachineState *machine)
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{
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DriveInfo *dinfo;
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int i;
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/* Initialize backend core & drivers */
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if (xen_be_init() != 0) {
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fprintf(stderr, "%s: xen backend core setup failed\n", __FUNCTION__);
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exit(1);
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}
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switch (xen_mode) {
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case XEN_ATTACH:
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/* nothing to do, xend handles everything */
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break;
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#ifdef CONFIG_XEN_PV_DOMAIN_BUILD
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case XEN_CREATE: {
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const char *kernel_filename = machine->kernel_filename;
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const char *kernel_cmdline = machine->kernel_cmdline;
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const char *initrd_filename = machine->initrd_filename;
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if (xen_domain_build_pv(kernel_filename, initrd_filename,
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kernel_cmdline) < 0) {
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fprintf(stderr, "xen pv domain creation failed\n");
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exit(1);
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}
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break;
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}
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#endif
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case XEN_EMULATE:
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fprintf(stderr, "xen emulation not implemented (yet)\n");
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exit(1);
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break;
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default:
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fprintf(stderr, "unhandled xen_mode %d\n", xen_mode);
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exit(1);
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break;
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}
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xen_sysdev = qdev_create(NULL, TYPE_XENSYSDEV);
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qdev_init_nofail(xen_sysdev);
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xen_be_register("console", &xen_console_ops);
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xen_be_register("vkbd", &xen_kbdmouse_ops);
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xen_be_register("vfb", &xen_framebuffer_ops);
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xen_be_register("qdisk", &xen_blkdev_ops);
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xen_be_register("qnic", &xen_netdev_ops);
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/* configure framebuffer */
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if (xenfb_enabled) {
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xen_config_dev_vfb(0, "vnc");
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xen_config_dev_vkbd(0);
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}
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/* configure disks */
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for (i = 0; i < 16; i++) {
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dinfo = drive_get(IF_XEN, 0, i);
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if (!dinfo)
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continue;
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xen_config_dev_blk(dinfo);
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}
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/* configure nics */
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for (i = 0; i < nb_nics; i++) {
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if (!nd_table[i].model || 0 != strcmp(nd_table[i].model, "xen"))
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continue;
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xen_config_dev_nic(nd_table + i);
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}
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/* config cleanup hook */
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atexit(xen_config_cleanup);
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/* setup framebuffer */
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xen_init_display(xen_domid);
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}
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static int xen_sysdev_init(SysBusDevice *dev)
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{
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return 0;
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}
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static Property xen_sysdev_properties[] = {
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{/* end of property list */},
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};
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static void xen_sysdev_class_init(ObjectClass *klass, void *data)
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{
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DeviceClass *dc = DEVICE_CLASS(klass);
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SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
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k->init = xen_sysdev_init;
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dc->props = xen_sysdev_properties;
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}
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static const TypeInfo xensysdev_info = {
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.name = TYPE_XENSYSDEV,
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.parent = TYPE_SYS_BUS_DEVICE,
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.instance_size = sizeof(SysBusDevice),
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.class_init = xen_sysdev_class_init,
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};
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static void xenpv_register_types(void)
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{
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type_register_static(&xensysdev_info);
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}
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type_init(xenpv_register_types);
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static void xenpv_machine_init(MachineClass *mc)
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{
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mc->desc = "Xen Para-virtualized PC";
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mc->init = xen_init_pv;
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mc->max_cpus = 1;
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mc->default_machine_opts = "accel=xen";
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}
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DEFINE_MACHINE("xenpv", xenpv_machine_init)
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