switch-coreboot/src/arch/arm64/boot.c
Aaron Durbin ce9efe061a program loading: unify on struct prog
Instead of having different structures for loading
ramstage and payload align to using struct prog.
This also removes arch_payload_run() in favor of
the prog_run() interface.

Change-Id: I31483096094eacc713a7433811cd69cc5621c43e
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/8849
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marc.jones@se-eng.com>
2015-04-03 14:53:11 +02:00

79 lines
1.9 KiB
C

/*
* This file is part of the coreboot project.
*
* Copyright 2013 Google Inc.
*
* 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; version 2 of the License.
*
* 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 St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <arch/cache.h>
#include <arch/lib_helpers.h>
#include <arch/secmon.h>
#include <arch/stages.h>
#include <arch/spintable.h>
#include <arch/transition.h>
#include <console/console.h>
#include <program_loading.h>
#include <rules.h>
#include <string.h>
static void run_payload(struct prog *prog)
{
void (*doit)(void *);
void *arg;
doit = prog_entry(prog);
arg = prog_entry_arg(prog);
uint8_t current_el = get_current_el();
printk(BIOS_SPEW, "entry = %p\n", doit);
secmon_run(doit, arg);
/* Start the other CPUs spinning. */
spintable_start();
/* If current EL is not EL3, jump to payload at same EL. */
if (current_el != EL3) {
cache_sync_instructions();
/* Point of no-return */
doit(arg);
}
/* If current EL is EL3, we transition to payload in EL2. */
struct exc_state exc_state;
memset(&exc_state, 0, sizeof(exc_state));
exc_state.elx.spsr = get_eret_el(EL2, SPSR_USE_L);
cache_sync_instructions();
transition_with_entry(doit, arg, &exc_state);
}
void arch_prog_run(struct prog *prog)
{
void (*doit)(void *);
void *arg;
if (ENV_RAMSTAGE && prog->type == PROG_PAYLOAD)
run_payload(prog);
return;
doit = prog_entry(prog);
arg = prog_entry_arg(prog);
doit(prog_entry_arg(prog));
}