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/sysbus.h" 29 #include "hw/xen/xen_backend.h" 30 #include "xen_domainbuild.h" 31 #include "sysemu/block-backend.h" 32 33 #define TYPE_XENSYSDEV "xensysdev" 34 35 DeviceState *xen_sysdev; 36 37 static void xen_init_pv(MachineState *machine) 38 { 39 DriveInfo *dinfo; 40 int i; 41 42 /* Initialize backend core & drivers */ 43 if (xen_be_init() != 0) { 44 fprintf(stderr, "%s: xen backend core setup failed\n", __FUNCTION__); 45 exit(1); 46 } 47 48 switch (xen_mode) { 49 case XEN_ATTACH: 50 /* nothing to do, xend handles everything */ 51 break; 52 #ifdef CONFIG_XEN_PV_DOMAIN_BUILD 53 case XEN_CREATE: { 54 const char *kernel_filename = machine->kernel_filename; 55 const char *kernel_cmdline = machine->kernel_cmdline; 56 const char *initrd_filename = machine->initrd_filename; 57 if (xen_domain_build_pv(kernel_filename, initrd_filename, 58 kernel_cmdline) < 0) { 59 fprintf(stderr, "xen pv domain creation failed\n"); 60 exit(1); 61 } 62 break; 63 } 64 #endif 65 case XEN_EMULATE: 66 fprintf(stderr, "xen emulation not implemented (yet)\n"); 67 exit(1); 68 break; 69 default: 70 fprintf(stderr, "unhandled xen_mode %d\n", xen_mode); 71 exit(1); 72 break; 73 } 74 75 xen_sysdev = qdev_create(NULL, TYPE_XENSYSDEV); 76 qdev_init_nofail(xen_sysdev); 77 78 xen_be_register("console", &xen_console_ops); 79 xen_be_register("vkbd", &xen_kbdmouse_ops); 80 xen_be_register("vfb", &xen_framebuffer_ops); 81 xen_be_register("qdisk", &xen_blkdev_ops); 82 xen_be_register("qnic", &xen_netdev_ops); 83 84 /* configure framebuffer */ 85 if (xenfb_enabled) { 86 xen_config_dev_vfb(0, "vnc"); 87 xen_config_dev_vkbd(0); 88 } 89 90 /* configure disks */ 91 for (i = 0; i < 16; i++) { 92 dinfo = drive_get(IF_XEN, 0, i); 93 if (!dinfo) 94 continue; 95 xen_config_dev_blk(dinfo); 96 } 97 98 /* configure nics */ 99 for (i = 0; i < nb_nics; i++) { 100 if (!nd_table[i].model || 0 != strcmp(nd_table[i].model, "xen")) 101 continue; 102 xen_config_dev_nic(nd_table + i); 103 } 104 105 /* config cleanup hook */ 106 atexit(xen_config_cleanup); 107 108 /* setup framebuffer */ 109 xen_init_display(xen_domid); 110 } 111 112 static int xen_sysdev_init(SysBusDevice *dev) 113 { 114 return 0; 115 } 116 117 static Property xen_sysdev_properties[] = { 118 {/* end of property list */}, 119 }; 120 121 static void xen_sysdev_class_init(ObjectClass *klass, void *data) 122 { 123 DeviceClass *dc = DEVICE_CLASS(klass); 124 SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass); 125 126 k->init = xen_sysdev_init; 127 dc->props = xen_sysdev_properties; 128 } 129 130 static const TypeInfo xensysdev_info = { 131 .name = TYPE_XENSYSDEV, 132 .parent = TYPE_SYS_BUS_DEVICE, 133 .instance_size = sizeof(SysBusDevice), 134 .class_init = xen_sysdev_class_init, 135 }; 136 137 static void xenpv_register_types(void) 138 { 139 type_register_static(&xensysdev_info); 140 } 141 142 type_init(xenpv_register_types); 143 144 static void xenpv_machine_init(MachineClass *mc) 145 { 146 mc->desc = "Xen Para-virtualized PC"; 147 mc->init = xen_init_pv; 148 mc->max_cpus = 1; 149 mc->default_machine_opts = "accel=xen"; 150 } 151 152 DEFINE_MACHINE("xenpv", xenpv_machine_init) 153