sys/arch/xen/i386/npx_hv.c

   1 /*      $NetBSD: npx_hv.c,v 1.7 2008/10/24 18:02:58 jym Exp $   */
   2
   3 /*
   4  *
   5  * Copyright (c) 2004 Christian Limpach.
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27  */
  28
  29
  30 #include <sys/cdefs.h>
  31 __KERNEL_RCSID(0, "$NetBSD: npx_hv.c,v 1.7 2008/10/24 18:02:58 jym Exp $");
  32
  33 #include <sys/param.h>
  34 #include <sys/systm.h>
  35 #include <sys/device.h>
  36
  37 #include <machine/bus.h>
  38 #include <machine/stdarg.h>
  39
  40 #include <xen/xen.h>
  41 #include <xen/hypervisor.h>
  42
  43 #include <i386/isa/npxvar.h>
  44
  45 int npx_hv_probe(device_t, cfdata_t, void *);
  46 void npx_hv_attach(device_t, device_t, void *);
  47
  48 CFATTACH_DECL_NEW(npx_hv, sizeof(struct npx_softc),
  49     npx_hv_probe, npx_hv_attach, NULL, NULL);
  50
  51 int
  52 npx_hv_probe(device_t parent, cfdata_t match, void *aux)
  53 {
  54         struct xen_npx_attach_args *xa = (struct xen_npx_attach_args *)aux;
  55
  56         if (strcmp(xa->xa_device, "npx") == 0)
  57                 return 1;
  58         return 0;
  59 }
  60
  61 void
  62 npx_hv_attach(device_t parent, device_t self, void *aux)
  63 {
  64         struct npx_softc *sc = device_private(self);
  65
  66         sc->sc_dev = self;
  67         sc->sc_type = NPX_EXCEPTION;
  68
  69         aprint_normal(": using exception 16\n");
  70
  71         npxattach(sc);
  72 }