Archipelago » qemu

/*

 * QEMU Xen PV Machine

 *

 * Copyright (c) 2007 Red Hat

 *

 * Permission is hereby granted, free of charge, to any person obtaining a copy

 * of this software and associated documentation files (the "Software"), to deal

 * in the Software without restriction, including without limitation the rights

 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

 * copies of the Software, and to permit persons to whom the Software is

 * furnished to do so, subject to the following conditions:

 *

 * The above copyright notice and this permission notice shall be included in

 * all copies or substantial portions of the Software.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL

 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN

 * THE SOFTWARE.

 */

#include "hw.h"

#include "pc.h"

#include "boards.h"

#include "xen_backend.h"

#include "xen_domainbuild.h"

#include "sysemu/blockdev.h"

static void xen_init_pv(QEMUMachineInitArgs *args)

{

    const char *cpu_model = args->cpu_model;

    const char *kernel_filename = args->kernel_filename;

    const char *kernel_cmdline = args->kernel_cmdline;

    const char *initrd_filename = args->initrd_filename;

    X86CPU *cpu;

    CPUX86State *env;

    DriveInfo *dinfo;

    int i;

    /* Initialize a dummy CPU */

    if (cpu_model == NULL) {

#ifdef TARGET_X86_64

        cpu_model = "qemu64";

#else

        cpu_model = "qemu32";

#endif

    }

    cpu = cpu_x86_init(cpu_model);

    env = &cpu->env;

    env->halted = 1;

    /* Initialize backend core & drivers */

    if (xen_be_init() != 0) {

        fprintf(stderr, "%s: xen backend core setup failed\n", __FUNCTION__);

        exit(1);

    }

    switch (xen_mode) {

    case XEN_ATTACH:

        /* nothing to do, xend handles everything */

        break;

    case XEN_CREATE:

        if (xen_domain_build_pv(kernel_filename, initrd_filename,

                                kernel_cmdline) < 0) {

            fprintf(stderr, "xen pv domain creation failed\n");

            exit(1);

        }

        break;

    case XEN_EMULATE:

        fprintf(stderr, "xen emulation not implemented (yet)\n");

        exit(1);

        break;

    }

    xen_be_register("console", &xen_console_ops);

    xen_be_register("vkbd", &xen_kbdmouse_ops);

    xen_be_register("vfb", &xen_framebuffer_ops);

    xen_be_register("qdisk", &xen_blkdev_ops);

    xen_be_register("qnic", &xen_netdev_ops);

    /* configure framebuffer */

    if (xenfb_enabled) {

        xen_config_dev_vfb(0, "vnc");

        xen_config_dev_vkbd(0);

    }

    /* configure disks */

    for (i = 0; i < 16; i++) {

        dinfo = drive_get(IF_XEN, 0, i);

        if (!dinfo)

            continue;

        xen_config_dev_blk(dinfo);

    }

    /* configure nics */

    for (i = 0; i < nb_nics; i++) {

        if (!nd_table[i].model || 0 != strcmp(nd_table[i].model, "xen"))

            continue;

        xen_config_dev_nic(nd_table + i);

    }

    /* config cleanup hook */

    atexit(xen_config_cleanup);

    /* setup framebuffer */

    xen_init_display(xen_domid);

}

static QEMUMachine xenpv_machine = {

    .name = "xenpv",

    .desc = "Xen Para-virtualized PC",

    .init = xen_init_pv,

    .max_cpus = 1,

    .default_machine_opts = "accel=xen",

};

static void xenpv_machine_init(void)

{

    qemu_register_machine(&xenpv_machine);

}

machine_init(xenpv_machine_init);