mirror of
https://github.com/ipxe/ipxe
synced 2025-12-17 18:11:49 +03:00
d0abffc2f6
initiator. This table needs to be replaced by something similar to iBFT (i.e. scanned for and identified by signature, rather than being at a fixed address), but it works for now.
101 lines
2.4 KiB
C
101 lines
2.4 KiB
C
#include <stdint.h>
|
|
#include <string.h>
|
|
#include <stdio.h>
|
|
#include <gpxe/aoe.h>
|
|
#include <gpxe/ata.h>
|
|
#include <gpxe/netdevice.h>
|
|
#include <gpxe/dhcp.h>
|
|
#include <int13.h>
|
|
#include <usr/aoeboot.h>
|
|
|
|
/**
|
|
* AoE boot information block
|
|
*
|
|
* Must be placed at 40:f0.
|
|
*
|
|
* This structure needs to be replaced by an ACPI table or similar.
|
|
*/
|
|
struct aoe_boot_info {
|
|
/** Must be 0x01 */
|
|
uint8_t one;
|
|
/** Client MAC address */
|
|
uint8_t client[ETH_ALEN];
|
|
/** Server MAC address */
|
|
uint8_t server[ETH_ALEN];
|
|
/** Shelf number */
|
|
uint16_t shelf;
|
|
/** Slot number */
|
|
uint8_t slot;
|
|
} __attribute__ (( packed ));
|
|
|
|
/**
|
|
* Guess boot network device
|
|
*
|
|
* @ret netdev Boot network device
|
|
*/
|
|
static struct net_device * guess_boot_netdev ( void ) {
|
|
struct net_device *boot_netdev;
|
|
|
|
/* Just use the first network device */
|
|
for_each_netdev ( boot_netdev ) {
|
|
return boot_netdev;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
int aoeboot ( const char *root_path ) {
|
|
struct ata_device ata;
|
|
struct int13_drive drive;
|
|
int rc;
|
|
|
|
memset ( &ata, 0, sizeof ( ata ) );
|
|
memset ( &drive, 0, sizeof ( drive ) );
|
|
|
|
printf ( "AoE booting from %s\n", root_path );
|
|
|
|
/* FIXME: ugly, ugly hack */
|
|
struct net_device *netdev = guess_boot_netdev();
|
|
|
|
if ( ( rc = aoe_attach ( &ata, netdev, root_path ) ) != 0 ) {
|
|
printf ( "Could not attach AoE device: %s\n",
|
|
strerror ( rc ) );
|
|
goto error_attach;
|
|
}
|
|
if ( ( rc = init_atadev ( &ata ) ) != 0 ) {
|
|
printf ( "Could not initialise AoE device: %s\n",
|
|
strerror ( rc ) );
|
|
goto error_init;
|
|
}
|
|
|
|
/* FIXME: ugly, ugly hack */
|
|
struct aoe_session *aoe =
|
|
container_of ( ata.backend, struct aoe_session, refcnt );
|
|
struct aoe_boot_info boot_info;
|
|
boot_info.one = 0x01;
|
|
memcpy ( boot_info.client, netdev->ll_addr,
|
|
sizeof ( boot_info.client ) );
|
|
memcpy ( boot_info.server, aoe->target,
|
|
sizeof ( boot_info.server ) );
|
|
boot_info.shelf = aoe->major;
|
|
boot_info.slot = aoe->minor;
|
|
copy_to_real ( 0x40, 0xf0, &boot_info, sizeof ( boot_info ) );
|
|
|
|
drive.drive = find_global_dhcp_num_option ( DHCP_EB_BIOS_DRIVE );
|
|
drive.blockdev = &ata.blockdev;
|
|
|
|
register_int13_drive ( &drive );
|
|
printf ( "Registered as BIOS drive %#02x\n", drive.drive );
|
|
printf ( "Booting from BIOS drive %#02x\n", drive.drive );
|
|
rc = int13_boot ( drive.drive );
|
|
printf ( "Boot failed\n" );
|
|
|
|
printf ( "Unregistering BIOS drive %#02x\n", drive.drive );
|
|
unregister_int13_drive ( &drive );
|
|
|
|
error_init:
|
|
aoe_detach ( &ata );
|
|
error_attach:
|
|
return rc;
|
|
}
|