xref: /openbmc/qemu/hw/xenpv/xen_machine_pv.c (revision 76bccf3c)
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     setup_xen_backend_ops();
36 
37     xen_bus_init();
38 
39     switch (xen_mode) {
40     case XEN_ATTACH:
41         /* nothing to do, libxl handles everything */
42         break;
43     case XEN_EMULATE:
44         error_report("xen emulation not implemented (yet)");
45         exit(1);
46         break;
47     default:
48         error_report("unhandled xen_mode %d", xen_mode);
49         exit(1);
50         break;
51     }
52 
53     /* configure framebuffer */
54     if (vga_interface_type == VGA_XENFB) {
55         xen_config_dev_vfb(0, "vnc");
56         xen_config_dev_vkbd(0);
57         vga_interface_created = true;
58     }
59 
60     /* config cleanup hook */
61     atexit(xen_config_cleanup);
62 }
63 
64 static void xenpv_machine_init(MachineClass *mc)
65 {
66     mc->desc = "Xen Para-virtualized PC";
67     mc->init = xen_init_pv;
68     mc->max_cpus = 1;
69     mc->default_machine_opts = "accel=xen";
70 }
71 
72 DEFINE_MACHINE("xenpv", xenpv_machine_init)
73