e6e94934e8
Allow adding and executing a refcode binary. Change-Id: I00e91a088a5695b42528e246d0ed642d988603e3 Signed-off-by: Patrick Georgi <pgeorgi@google.com> Reviewed-on: http://review.coreboot.org/10638 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
100 lines
2.5 KiB
C
100 lines
2.5 KiB
C
/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2014 Google Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc.
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*/
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#include <string.h>
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#include <arch/acpi.h>
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#include <cbmem.h>
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#include <console/console.h>
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#include <console/streams.h>
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#include <cpu/x86/tsc.h>
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#include <program_loading.h>
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#include <rmodule.h>
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#include <stage_cache.h>
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#include <string.h>
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#include <soc/pei_data.h>
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#include <soc/pei_wrapper.h>
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#include <soc/pm.h>
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#include <soc/ramstage.h>
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static pei_wrapper_entry_t load_refcode_from_cache(void)
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{
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struct prog refcode;
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printk(BIOS_DEBUG, "refcode loading from cache.\n");
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stage_cache_load_stage(STAGE_REFCODE, &refcode);
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return (pei_wrapper_entry_t)prog_entry(&refcode);
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}
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static pei_wrapper_entry_t load_reference_code(void)
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{
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struct prog prog =
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PROG_INIT(ASSET_REFCODE, CONFIG_CBFS_PREFIX "/refcode");
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struct rmod_stage_load refcode = {
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.cbmem_id = CBMEM_ID_REFCODE,
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.prog = &prog,
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};
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if (acpi_is_wakeup_s3()) {
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return load_refcode_from_cache();
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}
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if (prog_locate(&prog)) {
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printk(BIOS_DEBUG, "Couldn't locate reference code.\n");
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return NULL;
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}
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if (rmodule_stage_load(&refcode)) {
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printk(BIOS_DEBUG, "Error loading reference code.\n");
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return NULL;
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}
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/* Cache loaded reference code. */
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stage_cache_add(STAGE_REFCODE, &prog);
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return (pei_wrapper_entry_t)prog_entry(&prog);
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}
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void broadwell_run_reference_code(void)
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{
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int ret, dummy;
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struct pei_data pei_data;
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pei_wrapper_entry_t entry;
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memset(&pei_data, 0, sizeof(pei_data));
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mainboard_fill_pei_data(&pei_data);
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broadwell_fill_pei_data(&pei_data);
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pei_data.boot_mode = acpi_is_wakeup_s3() ? SLEEP_STATE_S3 : 0;
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pei_data.saved_data = (void *) &dummy;
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entry = load_reference_code();
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if (entry == NULL) {
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printk(BIOS_ERR, "Reference code not found\n");
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return;
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}
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/* Call into reference code. */
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ret = entry(&pei_data);
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if (ret != 0) {
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printk(BIOS_ERR, "Reference code returned %d\n", ret);
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return;
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}
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}
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