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/*
* Copyright (C) 2024 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., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*
* You can also choose to distribute this program under the terms of
* the Unmodified Binary Distribution Licence (as given in the file
* COPYING.UBDL), provided that you have satisfied its requirements.
*/
FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
/** @file
*
* Supervisor Binary Interface (SBI) reboot mechanism
*
*/
#include <errno.h>
#include <string.h>
#include <ipxe/sbi.h>
#include <ipxe/reboot.h>
/**
* Reboot system
*
* @v warm Perform a warm reboot
*/
static void sbi_reboot ( int warm ) {
struct sbi_return ret;
int rc;
/* Reboot system */
ret = sbi_ecall_2 ( SBI_SRST, SBI_SRST_SYSTEM_RESET,
( warm ? SBI_RESET_WARM : SBI_RESET_COLD ), 0 );
/* Any return is an error */
rc = -ESBI ( ret.error );
DBGC ( SBI_SRST, "SBI %s reset failed: %s\n",
( warm ? "warm" : "cold" ), strerror ( rc ) );
}
/**
* Power off system
*
* @ret rc Return status code
*/
static int sbi_poweroff ( void ) {
struct sbi_return ret;
int rc;
/* Shut down system */
ret = sbi_ecall_2 ( SBI_SRST, SBI_SRST_SYSTEM_RESET,
SBI_RESET_SHUTDOWN, 0 );
/* Any return is an error */
rc = -ESBI ( ret.error );
DBGC ( SBI_SRST, "SBI shutdown failed: %s\n", strerror ( rc ) );
return rc;
}
PROVIDE_REBOOT ( sbi, reboot, sbi_reboot );
PROVIDE_REBOOT ( sbi, poweroff, sbi_poweroff );
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