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/*
* This file is part of the coreboot project.
*
*
* 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.
*/
#include <types.h>
#include <string.h>
#include <stdlib.h>
#include <cbfs.h>
#include <cbmem.h>
#include <console/console.h>
#include <fmap.h>
#include <security/vboot/vbnv.h>
#include <security/vboot/vboot_common.h>
#include "chromeos.h"
#include "gnvs.h"
static chromeos_acpi_t *chromeos_acpi;
static u32 me_hash_saved[8];
static size_t chromeos_vpd_region(const char *region, uintptr_t *base)
{
struct region_device vpd;
if (fmap_locate_area_as_rdev(region, &vpd))
return 0;
*base = (uintptr_t)rdev_mmap_full(&vpd);
return region_device_sz(&vpd);
}
void chromeos_init_chromeos_acpi(chromeos_acpi_t *init)
{
size_t vpd_size;
uintptr_t vpd_base = 0;
chromeos_acpi = init;
/* Copy saved ME hash into NVS */
memcpy(chromeos_acpi->mehh, me_hash_saved, sizeof(chromeos_acpi->mehh));
chromeos_ram_oops_init(chromeos_acpi);
vpd_size = chromeos_vpd_region("RO_VPD", &vpd_base);
if (vpd_size && vpd_base) {
chromeos_acpi->vpd_ro_base = vpd_base;
chromeos_acpi->vpd_ro_size = vpd_size;
}
vpd_size = chromeos_vpd_region("RW_VPD", &vpd_base);
if (vpd_size && vpd_base) {
chromeos_acpi->vpd_rw_base = vpd_base;
chromeos_acpi->vpd_rw_size = vpd_size;
}
}
void chromeos_set_me_hash(u32 *hash, int len)
{
if ((len*sizeof(u32)) > sizeof(chromeos_acpi->mehh))
return;
/* Copy to NVS or save until it is ready */
if (chromeos_acpi)
/* This does never happen! */
memcpy(chromeos_acpi->mehh, hash, len*sizeof(u32));
else
memcpy(me_hash_saved, hash, len*sizeof(u32));
}
chromeos_acpi_t *chromeos_get_chromeos_acpi(void)
{
return chromeos_acpi;
}
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