qemu

FORK: QEMU emulator
git clone https://git.neptards.moe/neptards/qemu.git
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xen_machine_pv.c (2958B)

      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/boards.h"
     28 #include "hw/xen/xen-legacy-backend.h"
     29 #include "hw/xen/xen-bus.h"
     30 #include "sysemu/block-backend.h"
     31 #include "sysemu/sysemu.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, libxl handles everything */
     47         break;
     48     case XEN_EMULATE:
     49         error_report("xen emulation not implemented (yet)");
     50         exit(1);
     51         break;
     52     default:
     53         error_report("unhandled xen_mode %d", xen_mode);
     54         exit(1);
     55         break;
     56     }
     57 
     58     xen_be_register_common();
     59     xen_be_register("vfb", &xen_framebuffer_ops);
     60     xen_be_register("qnic", &xen_netdev_ops);
     61 
     62     /* configure framebuffer */
     63     if (vga_interface_type == VGA_XENFB) {
     64         xen_config_dev_vfb(0, "vnc");
     65         xen_config_dev_vkbd(0);
     66         vga_interface_created = true;
     67     }
     68 
     69     /* configure disks */
     70     for (i = 0; i < 16; i++) {
     71         dinfo = drive_get(IF_XEN, 0, i);
     72         if (!dinfo)
     73             continue;
     74         xen_config_dev_blk(dinfo);
     75     }
     76 
     77     /* configure nics */
     78     for (i = 0; i < nb_nics; i++) {
     79         if (!nd_table[i].model || 0 != strcmp(nd_table[i].model, "xen"))
     80             continue;
     81         xen_config_dev_nic(nd_table + i);
     82     }
     83 
     84     xen_bus_init();
     85 
     86     /* config cleanup hook */
     87     atexit(xen_config_cleanup);
     88 }
     89 
     90 static void xenpv_machine_init(MachineClass *mc)
     91 {
     92     mc->desc = "Xen Para-virtualized PC";
     93     mc->init = xen_init_pv;
     94     mc->max_cpus = 1;
     95     mc->default_machine_opts = "accel=xen";
     96 }
     97 
     98 DEFINE_MACHINE("xenpv", xenpv_machine_init)