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Added support for draft version of the AoE Boot Firmware Table.

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This commit is contained in:
Michael Brown
2007-07-31 14:05:03 +01:00
parent dde3f99e4e
commit 291d69d7fd
3 changed files with 98 additions and 0 deletions
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60
src/core/abft.c Normal file
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@@ -0,0 +1,60 @@
/*
* Copyright (C) 2007 Michael Brown <mbrown@fensystems.co.uk>.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <realmode.h>
#include <gpxe/aoe.h>
#include <gpxe/netdevice.h>
#include <gpxe/abft.h>
/** @file
*
* AoE Boot Firmware Table
*
*/
#define abftab __use_data16 ( abftab )
/** The aBFT used by gPXE */
struct abft_table __data16 ( abftab ) __attribute__ (( aligned ( 16 ) )) = {
/* ACPI header */
.acpi = {
.signature = ABFT_SIG,
.length = sizeof ( abftab ),
.revision = 1,
.oem_id = "FENSYS",
.oem_table_id = "gPXE",
},
};
/**
* Fill in all variable portions of aBFT
*
* @v aoe AoE session
*/
void abft_fill_data ( struct aoe_session *aoe ) {
/* Fill in boot parameters */
abftab.shelf = aoe->major;
abftab.slot = aoe->minor;
memcpy ( abftab.mac, aoe->netdev->ll_addr, sizeof ( abftab.mac ) );
/* Update checksum */
acpi_fix_checksum ( &abftab.acpi );
DBG ( "AoE boot firmware table:\n" );
DBG_HD ( &abftab, sizeof ( abftab ) );
}

35
src/include/gpxe/abft.h Normal file
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@@ -0,0 +1,35 @@
#ifndef _GPXE_ABFT_H
#define _GPXE_ABFT_H
/** @file
*
* AoE boot firmware table
*
*/
#include <stdint.h>
#include <gpxe/acpi.h>
#include <gpxe/if_ether.h>
/** AoE boot firmware table signature */
#define ABFT_SIG "aBFT"
/**
* AoE Boot Firmware Table (aBFT)
*/
struct abft_table {
/** ACPI header */
struct acpi_description_header acpi;
/** AoE shelf */
uint16_t shelf;
/** AoE slot */
uint8_t slot;
/** Reserved */
uint8_t reserved_a;
/** MAC address */
uint8_t mac[ETH_ALEN];
} __attribute__ (( packed ));
extern void abft_fill_data ( struct aoe_session *aoe );
#endif /* _GPXE_ABFT_H */

3
src/usr/aoeboot.c
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@@ -6,6 +6,7 @@
#include <gpxe/ata.h>
#include <gpxe/netdevice.h>
#include <gpxe/dhcp.h>
#include <gpxe/abft.h>
#include <int13.h>
#include <usr/aoeboot.h>
@@ -82,6 +83,8 @@ int aoeboot ( const char *root_path ) {
boot_info.slot = aoe->minor;
copy_to_real ( 0x40, 0xf0, &boot_info, sizeof ( boot_info ) );
abft_fill_data ( aoe );
drive.drive = find_global_dhcp_num_option ( DHCP_EB_BIOS_DRIVE );
drive.blockdev = &ata.blockdev;