src/arch/i386/interface/pcbios/aoeboot.c

   1 #include <stdint.h>
   2 #include <string.h>
   3 #include <stdlib.h>
   4 #include <stdio.h>
   5 #include <errno.h>
   6 #include <gpxe/aoe.h>
   7 #include <gpxe/ata.h>
   8 #include <gpxe/netdevice.h>
   9 #include <gpxe/sanboot.h>
  10 #include <gpxe/abft.h>
  11 #include <int13.h>
  12
  13 FILE_LICENCE ( GPL2_OR_LATER );
  14
  15 static int aoeboot ( const char *root_path ) {
  16         struct ata_device *ata;
  17         struct int13_drive *drive;
  18         int rc;
  19
  20         ata = zalloc ( sizeof ( *ata ) );
  21         if ( ! ata ) {
  22                 rc = -ENOMEM;
  23                 goto err_alloc_ata;
  24         }
  25         drive = zalloc ( sizeof ( *drive ) );
  26         if ( ! drive ) {
  27                 rc = -ENOMEM;
  28                 goto err_alloc_drive;
  29         }
  30
  31         /* FIXME: ugly, ugly hack */
  32         struct net_device *netdev = last_opened_netdev();
  33
  34         if ( ( rc = aoe_attach ( ata, netdev, root_path ) ) != 0 ) {
  35                 printf ( "Could not attach AoE device: %s\n",
  36                          strerror ( rc ) );
  37                 goto err_attach;
  38         }
  39         if ( ( rc = init_atadev ( ata ) ) != 0 ) {
  40                 printf ( "Could not initialise AoE device: %s\n",
  41                          strerror ( rc ) );
  42                 goto err_init;
  43         }
  44
  45         /* FIXME: ugly, ugly hack */
  46         struct aoe_session *aoe =
  47                 container_of ( ata->backend, struct aoe_session, refcnt );
  48         abft_fill_data ( aoe );
  49
  50         drive->blockdev = &ata->blockdev;
  51
  52         register_int13_drive ( drive );
  53         printf ( "Registered as BIOS drive %#02x\n", drive->drive );
  54         printf ( "Booting from BIOS drive %#02x\n", drive->drive );
  55         rc = int13_boot ( drive->drive );
  56         printf ( "Boot failed\n" );
  57
  58         /* Leave drive registered, if instructed to do so */
  59         if ( keep_san() )
  60                 return rc;
  61
  62         printf ( "Unregistering BIOS drive %#02x\n", drive->drive );
  63         unregister_int13_drive ( drive );
  64
  65  err_init:
  66         aoe_detach ( ata );
  67  err_attach:
  68         free ( drive );
  69  err_alloc_drive:
  70         free ( ata );
  71  err_alloc_ata:
  72         return rc;
  73 }
  74
  75 struct sanboot_protocol aoe_sanboot_protocol __sanboot_protocol = {
  76         .prefix = "aoe:",
  77         .boot = aoeboot,
  78 };