File:  [Qemu by Fabrice Bellard] / qemu / hw / device-hotplug.c
Revision 1.1.1.6 (vendor branch): download - view: text, annotated - select for diffs
Tue Apr 24 19:48:15 2018 UTC (2 years, 3 months ago) by root
Branches: qemu, MAIN
CVS tags: qemu1101, HEAD
qemu 1.1.1

    1: /*
    2:  * QEMU device hotplug helpers
    3:  *
    4:  * Copyright (c) 2004 Fabrice Bellard
    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 "hw.h"
   26: #include "boards.h"
   27: #include "net.h"
   28: #include "blockdev.h"
   29: #include "qemu-config.h"
   30: #include "sysemu.h"
   31: #include "monitor.h"
   32: 
   33: DriveInfo *add_init_drive(const char *optstr)
   34: {
   35:     DriveInfo *dinfo;
   36:     QemuOpts *opts;
   37: 
   38:     opts = drive_def(optstr);
   39:     if (!opts)
   40:         return NULL;
   41: 
   42:     dinfo = drive_init(opts, current_machine->use_scsi);
   43:     if (!dinfo) {
   44:         qemu_opts_del(opts);
   45:         return NULL;
   46:     }
   47: 
   48:     return dinfo;
   49: }
   50: 
   51: #if !defined(TARGET_I386)
   52: int pci_drive_hot_add(Monitor *mon, const QDict *qdict,
   53:                       DriveInfo *dinfo, int type)
   54: {
   55:     /* On non-x86 we don't do PCI hotplug */
   56:     monitor_printf(mon, "Can't hot-add drive to type %d\n", type);
   57:     return -1;
   58: }
   59: #endif
   60: 
   61: void drive_hot_add(Monitor *mon, const QDict *qdict)
   62: {
   63:     int type;
   64:     DriveInfo *dinfo = NULL;
   65:     const char *opts = qdict_get_str(qdict, "opts");
   66: 
   67:     dinfo = add_init_drive(opts);
   68:     if (!dinfo) {
   69:         goto err;
   70:     }
   71:     if (dinfo->devaddr) {
   72:         monitor_printf(mon, "Parameter addr not supported\n");
   73:         goto err;
   74:     }
   75:     type = dinfo->type;
   76: 
   77:     switch (type) {
   78:     case IF_NONE:
   79:         monitor_printf(mon, "OK\n");
   80:         break;
   81:     default:
   82:         if (pci_drive_hot_add(mon, qdict, dinfo, type)) {
   83:             goto err;
   84:         }
   85:     }
   86:     return;
   87: 
   88: err:
   89:     if (dinfo) {
   90:         drive_put_ref(dinfo);
   91:     }
   92:     return;
   93: }

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