hw/i386/xen_machine_pv.c

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