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 "qemu/error-report.h"
  27#include "hw/hw.h"
  28#include "hw/boards.h"
  29#include "hw/xen/xen_backend.h"
  30#include "xen_domainbuild.h"
  31#include "sysemu/block-backend.h"
  32
  33static void xen_init_pv(MachineState *machine)
  34{
  35    DriveInfo *dinfo;
  36    int i;
  37
  38    /* Initialize backend core & drivers */
  39    if (xen_be_init() != 0) {
  40        error_report("%s: xen backend core setup failed", __func__);
  41        exit(1);
  42    }
  43
  44    switch (xen_mode) {
  45    case XEN_ATTACH:
  46        /* nothing to do, xend handles everything */
  47        break;
  48#ifdef CONFIG_XEN_PV_DOMAIN_BUILD
  49    case XEN_CREATE: {
  50        const char *kernel_filename = machine->kernel_filename;
  51        const char *kernel_cmdline = machine->kernel_cmdline;
  52        const char *initrd_filename = machine->initrd_filename;
  53        if (xen_domain_build_pv(kernel_filename, initrd_filename,
  54                                kernel_cmdline) < 0) {
  55            error_report("xen pv domain creation failed");
  56            exit(1);
  57        }
  58        break;
  59    }
  60#endif
  61    case XEN_EMULATE:
  62        error_report("xen emulation not implemented (yet)");
  63        exit(1);
  64        break;
  65    default:
  66        error_report("unhandled xen_mode %d", xen_mode);
  67        exit(1);
  68        break;
  69    }
  70
  71    xen_be_register_common();
  72    xen_be_register("vfb", &xen_framebuffer_ops);
  73    xen_be_register("qnic", &xen_netdev_ops);
  74
  75    /* configure framebuffer */
  76    if (xenfb_enabled) {
  77        xen_config_dev_vfb(0, "vnc");
  78        xen_config_dev_vkbd(0);
  79    }
  80
  81    /* configure disks */
  82    for (i = 0; i < 16; i++) {
  83        dinfo = drive_get(IF_XEN, 0, i);
  84        if (!dinfo)
  85            continue;
  86        xen_config_dev_blk(dinfo);
  87    }
  88
  89    /* configure nics */
  90    for (i = 0; i < nb_nics; i++) {
  91        if (!nd_table[i].model || 0 != strcmp(nd_table[i].model, "xen"))
  92            continue;
  93        xen_config_dev_nic(nd_table + i);
  94    }
  95
  96    /* config cleanup hook */
  97    atexit(xen_config_cleanup);
  98}
  99
 100static void xenpv_machine_init(MachineClass *mc)
 101{
 102    mc->desc = "Xen Para-virtualized PC";
 103    mc->init = xen_init_pv;
 104    mc->max_cpus = 1;
 105    mc->default_machine_opts = "accel=xen";
 106}
 107
 108DEFINE_MACHINE("xenpv", xenpv_machine_init)
 109