hw/xenpv/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 "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
  33 static 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
 100 static 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
 108 DEFINE_MACHINE("xenpv", xenpv_machine_init)