LXR qemu/hw/xenpv/xen_machine

   1/*
   2 * QEMU Xen PV Machine
   3 *
   4 * Copyright (c) 2007 Red Hat
   5 *
   6 * Permission is hereby granted, free of charge, to any person obtaining a copy
   7 * of this software and associated documentation files (the "Software"), to deal
   8 * in the Software without restriction, including without limitation the rights
   9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10 * copies of the Software, and to permit persons to whom the Software is
  11 * furnished to do so, subject to the following conditions:
  12 *
  13 * The above copyright notice and this permission notice shall be included in
  14 * all copies or substantial portions of the Software.
  15 *
  16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  22 * THE SOFTWARE.
  23 */
  24
  25#include "qemu/osdep.h"
  26#include "hw/hw.h"
  27#include "hw/boards.h"
  28#include "hw/xen/xen_backend.h"
  29#include "xen_domainbuild.h"
  30#include "sysemu/block-backend.h"
  31
  32static void xen_init_pv(MachineState *machine)
  33{
  34    DriveInfo *dinfo;
  35    int i;
  36
  37    /* Initialize backend core & drivers */
  38    if (xen_be_init() != 0) {
  39        fprintf(stderr, "%s: xen backend core setup failed\n", __FUNCTION__);
  40        exit(1);
  41    }
  42
  43    switch (xen_mode) {
  44    case XEN_ATTACH:
  45        /* nothing to do, xend handles everything */
  46        break;
  47#ifdef CONFIG_XEN_PV_DOMAIN_BUILD
  48    case XEN_CREATE: {
  49        const char *kernel_filename = machine->kernel_filename;
  50        const char *kernel_cmdline = machine->kernel_cmdline;
  51        const char *initrd_filename = machine->initrd_filename;
  52        if (xen_domain_build_pv(kernel_filename, initrd_filename,
  53                                kernel_cmdline) < 0) {
  54            fprintf(stderr, "xen pv domain creation failed\n");
  55            exit(1);
  56        }
  57        break;
  58    }
  59#endif
  60    case XEN_EMULATE:
  61        fprintf(stderr, "xen emulation not implemented (yet)\n");
  62        exit(1);
  63        break;
  64    default:
  65        fprintf(stderr, "unhandled xen_mode %d\n", xen_mode);
  66        exit(1);
  67        break;
  68    }
  69
  70    xen_be_register_common();
  71    xen_be_register("vfb", &xen_framebuffer_ops);
  72    xen_be_register("qnic", &xen_netdev_ops);
  73
  74    /* configure framebuffer */
  75    if (xenfb_enabled) {
  76        xen_config_dev_vfb(0, "vnc");
  77        xen_config_dev_vkbd(0);
  78    }
  79
  80    /* configure disks */
  81    for (i = 0; i < 16; i++) {
  82        dinfo = drive_get(IF_XEN, 0, i);
  83        if (!dinfo)
  84            continue;
  85        xen_config_dev_blk(dinfo);
  86    }
  87
  88    /* configure nics */
  89    for (i = 0; i < nb_nics; i++) {
  90        if (!nd_table[i].model || 0 != strcmp(nd_table[i].model, "xen"))
  91            continue;
  92        xen_config_dev_nic(nd_table + i);
  93    }
  94
  95    /* config cleanup hook */
  96    atexit(xen_config_cleanup);
  97
  98    /* setup framebuffer */
  99    xen_init_display(xen_domid);
 100}
 101
 102static void xenpv_machine_init(MachineClass *mc)
 103{
 104    mc->desc = "Xen Para-virtualized PC";
 105    mc->init = xen_init_pv;
 106    mc->max_cpus = 1;
 107    mc->default_machine_opts = "accel=xen";
 108}
 109
 110DEFINE_MACHINE("xenpv", xenpv_machine_init)
 111