void fsp_temp_ram_exit(void)
{
struct fsp_header hdr;
uint32_t status;
temp_ram_exit_fn temp_ram_exit;
struct cbfsf file_desc;
struct region_device file_data;
const char *name = CONFIG_FSP_M_CBFS;
if (cbfs_boot_locate(&file_desc, name, NULL)) {
printk(BIOS_CRIT, "Could not locate %s in CBFS\n", name);
die("FSPM not available for CAR Exit!\n");
}
cbfs_file_data(&file_data, &file_desc);
if (fsp_validate_component(&hdr, &file_data) != CB_SUCCESS)
die("Invalid FSPM header!\n");
temp_ram_exit = (void *)(hdr.image_base + hdr.temp_ram_exit_entry);
printk(BIOS_DEBUG, "Calling TempRamExit: 0x%p\n", temp_ram_exit);
status = temp_ram_exit(NULL);
if (status != FSP_SUCCESS) {
printk(BIOS_CRIT, "TempRamExit returned 0x%08x\n", status);
die("TempRamExit returned an error!\n");
}
}
void fsps_load(bool s3wake)
{
struct fsp_header *hdr = &fsps_hdr;
struct cbfsf file_desc;
struct region_device rdev;
const char *name = CONFIG_FSP_S_CBFS;
void *dest;
size_t size;
struct prog fsps = PROG_INIT(PROG_REFCODE, name);
static int load_done;
if (load_done)
return;
if (s3wake && !IS_ENABLED(CONFIG_NO_STAGE_CACHE)) {
printk(BIOS_DEBUG, "Loading FSPS from stage_cache\n");
stage_cache_load_stage(STAGE_REFCODE, &fsps);
if (fsp_validate_component(hdr, prog_rdev(&fsps)) != CB_SUCCESS)
die("On resume fsps header is invalid\n");
load_done = 1;
return;
}
if (cbfs_boot_locate(&file_desc, name, NULL)) {
printk(BIOS_ERR, "Could not locate %s in CBFS\n", name);
die("FSPS not available!\n");
}
cbfs_file_data(&rdev, &file_desc);
/* Load and relocate into CBMEM. */
size = region_device_sz(&rdev);
dest = cbmem_add(CBMEM_ID_REFCODE, size);
if (dest == NULL)
die("Could not add FSPS to CBMEM!\n");
if (rdev_readat(&rdev, dest, 0, size) < 0)
die("Failed to read FSPS!\n");
if (fsp_component_relocate((uintptr_t)dest, dest, size) < 0)
die("Unable to relocate FSPS!\n");
/* Create new region device in memory after relocation. */
rdev_chain(&rdev, &addrspace_32bit.rdev, (uintptr_t)dest, size);
if (fsp_validate_component(hdr, &rdev) != CB_SUCCESS)
die("Invalid FSPS header!\n");
prog_set_area(&fsps, dest, size);
stage_cache_add(STAGE_REFCODE, &fsps);
/* Signal that FSP component has been loaded. */
prog_segment_loaded(hdr->image_base, hdr->image_size, SEG_FINAL);
load_done = 1;
}
int prog_locate(struct prog *prog)
{
struct cbfsf file;
cbfs_prepare_program_locate();
if (cbfs_boot_locate(&file, prog_name(prog), NULL))
return -1;
cbfs_file_data(prog_rdev(prog), &file);
return 0;
}
static void vboot_prepare(void)
{
int run_verification;
run_verification = verification_should_run();
if (run_verification) {
verstage_main();
car_set_var(vboot_executed, 1);
} else if (verstage_should_load()) {
struct cbfsf file;
struct prog verstage =
PROG_INIT(PROG_VERSTAGE,
CONFIG_CBFS_PREFIX "/verstage");
printk(BIOS_DEBUG, "VBOOT: Loading verstage.\n");
/* load verstage from RO */
if (cbfs_boot_locate(&file, prog_name(&verstage), NULL))
die("failed to load verstage");
cbfs_file_data(prog_rdev(&verstage), &file);
if (cbfs_prog_stage_load(&verstage))
die("failed to load verstage");
/* verify and select a slot */
prog_run(&verstage);
/* This is not actually possible to hit this condition at
* runtime, but this provides a hint to the compiler for dead
* code elimination below. */
if (!IS_ENABLED(CONFIG_RETURN_FROM_VERSTAGE))
return;
car_set_var(vboot_executed, 1);
}
/*
* Fill in vboot cbmem objects before moving to ramstage so all
* downstream users have access to vboot results. This path only
* applies to platforms employing VBOOT_DYNAMIC_WORK_BUFFER because
* cbmem comes online prior to vboot verification taking place. For
* other platforms the vboot cbmem objects are initialized when
* cbmem comes online.
*/
if (ENV_ROMSTAGE && IS_ENABLED(CONFIG_VBOOT_DYNAMIC_WORK_BUFFER)) {
vb2_store_selected_region();
vboot_fill_handoff();
}
}
int tegra210_run_mtc(void)
{
ssize_t nread;
struct region_device fh;
struct cbfsf mtc_file;
void *const mtc = (void *)(uintptr_t)CONFIG_MTC_ADDRESS;
void *dvfs_table;
size_t (*mtc_fw)(void **dvfs_table) = (void *)mtc;
if (cbfs_boot_locate(&mtc_file, "tegra_mtc.bin", NULL)) {
printk(BIOS_ERR, "MTC file not found: tegra_mtc.bin\n");
return -1;
}
cbfs_file_data(&fh, &mtc_file);
/* Read MTC file into predefined region. */
nread = rdev_readat(&fh, mtc, 0, region_device_sz(&fh));
if (nread != region_device_sz(&fh)) {
printk(BIOS_ERR, "MTC bytes read (%zu) != file length(%zu)!\n",
nread, region_device_sz(&fh));
return -1;
}
printk(BIOS_INFO, "MTC: %zu bytes loaded @ %p\n", nread, mtc);
mtc_table_size = (*mtc_fw)(&dvfs_table);
if ((mtc_table_size == 0) || (mtc_table_size > MTC_TABLE_MAX_SIZE)) {
printk(BIOS_ERR, "MTC Training table size is invalid.!\n");
return -1;
}
printk(BIOS_INFO, "MTC: Done. Entries size 0x%zx located at %p\n",
mtc_table_size, dvfs_table);
void *cbmem_tab = cbmem_add(CBMEM_ID_MTC, mtc_table_size);
if (cbmem_tab == NULL) {
printk(BIOS_ERR, "MTC table allocation in cbmem failed!\n");
return -1;
}
memcpy(cbmem_tab, dvfs_table, mtc_table_size);
printk(BIOS_INFO, "MTC: Copied 0x%zx bytes from %p to %p\n",
mtc_table_size, dvfs_table, cbmem_tab);
return 0;
}
void *cbfs_boot_map_with_leak(const char *name, uint32_t type, size_t *size)
{
struct cbfsf fh;
size_t fsize;
if (cbfs_boot_locate(&fh, name, &type))
return NULL;
fsize = region_device_sz(&fh.data);
if (size != NULL)
*size = fsize;
return rdev_mmap(&fh.data, 0, fsize);
}
static int fsp_find_and_relocate(struct prog *fsp)
{
struct region_device fsp_rdev;
uint32_t type = CBFS_TYPE_FSP;
if (cbfs_boot_locate(&fsp_rdev, prog_name(fsp), &type)) {
printk(BIOS_ERR, "ERROR: Couldn't find fsp.bin in CBFS.\n");
return -1;
}
if (fsp_relocate(fsp, &fsp_rdev)) {
printk(BIOS_ERR, "ERROR: FSP relocation failed.\n");
return -1;
}
return 0;
}
enum fsp_status fsp_silicon_init(void)
{
struct fsp_header *hdr = &fsps_hdr;
struct cbfsf file_desc;
struct region_device rdev;
const char *name = CONFIG_FSP_S_CBFS;
void *dest;
size_t size;
if (cbfs_boot_locate(&file_desc, name, NULL)) {
printk(BIOS_ERR, "Could not locate %s in CBFS\n", name);
return FSP_NOT_FOUND;
}
cbfs_file_data(&rdev, &file_desc);
/* Load and relocate into CBMEM. */
size = region_device_sz(&rdev);
dest = cbmem_add(CBMEM_ID_REFCODE, size);
if (dest == NULL) {
printk(BIOS_ERR, "Could not add FSPS to CBMEM.\n");
return FSP_NOT_FOUND;
}
if (rdev_readat(&rdev, dest, 0, size) < 0)
return FSP_NOT_FOUND;
if (fsp_component_relocate((uintptr_t)dest, dest, size) < 0) {
printk(BIOS_ERR, "Unable to relocate FSPS.\n");
return FSP_NOT_FOUND;
}
/* Create new region device in memory after relocation. */
rdev_chain(&rdev, &addrspace_32bit.rdev, (uintptr_t)dest, size);
if (fsp_validate_component(hdr, &rdev) != CB_SUCCESS)
return FSP_NOT_FOUND;
/* Signal that FSP component has been loaded. */
prog_segment_loaded(hdr->image_base, hdr->image_size, SEG_FINAL);
return do_silicon_init(hdr);
}
void fsp_memory_init(bool s3wake)
{
struct fsp_header hdr;
enum cb_err status;
struct cbfsf file_desc;
struct region_device file_data;
const char *name = CONFIG_FSP_M_CBFS;
struct memranges memmap;
struct range_entry freeranges[2];
if (CONFIG(ELOG_BOOT_COUNT) && !s3wake)
boot_count_increment();
if (cbfs_boot_locate(&file_desc, name, NULL)) {
printk(BIOS_CRIT, "Could not locate %s in CBFS\n", name);
die("FSPM not available!\n");
}
cbfs_file_data(&file_data, &file_desc);
/* Build up memory map of romstage address space including CAR. */
memranges_init_empty(&memmap, &freeranges[0], ARRAY_SIZE(freeranges));
memranges_insert(&memmap, (uintptr_t)_car_region_start,
_car_relocatable_data_end - _car_region_start, 0);
memranges_insert(&memmap, (uintptr_t)_program, REGION_SIZE(program), 0);
if (!CONFIG(FSP_M_XIP))
status = load_fspm_mem(&hdr, &file_data, &memmap);
else
status = load_fspm_xip(&hdr, &file_data);
if (status != CB_SUCCESS)
die("Loading FSPM failed!\n");
/* Signal that FSP component has been loaded. */
prog_segment_loaded(hdr.image_base, hdr.image_size, SEG_FINAL);
do_fsp_memory_init(&hdr, s3wake, &memmap);
}
int ccplex_load_mts(void)
{
ssize_t nread;
struct stopwatch sw;
struct cbfsf mts_file;
struct region_device fh;
/*
* MTS location is hard coded to this magic address. The hardware will
* take the MTS from this location and place it in the final resting
* place in the carveout region.
*/
void * const mts = (void *)(uintptr_t)MTS_LOAD_ADDRESS;
stopwatch_init(&sw);
if (cbfs_boot_locate(&mts_file, MTS_FILE_NAME, NULL)) {
printk(BIOS_DEBUG, "MTS file not found: %s\n", MTS_FILE_NAME);
return -1;
}
cbfs_file_data(&fh, &mts_file);
/* Read MTS file into the carveout region. */
nread = rdev_readat(&fh, mts, 0, region_device_sz(&fh));
if (nread != region_device_sz(&fh)) {
printk(BIOS_DEBUG, "MTS bytes read (%zu) != file length(%u)!\n",
nread, region_device_sz(&fh));
return -1;
}
printk(BIOS_DEBUG, "MTS: %zu bytes loaded @ %p in %ld usecs.\n",
nread, mts, stopwatch_duration_usecs(&sw));
return ccplex_start();
}
uint32_t vboot_init_crtm(void)
{
struct prog bootblock = PROG_INIT(PROG_BOOTBLOCK, "bootblock");
struct prog verstage =
PROG_INIT(PROG_VERSTAGE, CONFIG_CBFS_PREFIX "/verstage");
struct prog romstage =
PROG_INIT(PROG_ROMSTAGE, CONFIG_CBFS_PREFIX "/romstage");
char tcpa_metadata[TCPA_PCR_HASH_NAME];
/* Initialize TCPE PRERAM log. */
tcpa_preram_log_clear();
/* measure bootblock from RO */
struct cbfsf bootblock_data;
struct region_device bootblock_fmap;
if (fmap_locate_area_as_rdev("BOOTBLOCK", &bootblock_fmap) == 0) {
if (tpm_measure_region(&bootblock_fmap,
TPM_CRTM_PCR,
"FMAP: BOOTBLOCK"))
return VB2_ERROR_UNKNOWN;
} else {
if (cbfs_boot_locate(&bootblock_data,
prog_name(&bootblock), NULL) == 0) {
cbfs_file_data(prog_rdev(&bootblock), &bootblock_data);
if (create_tcpa_metadata(prog_rdev(&bootblock),
prog_name(&bootblock), tcpa_metadata) < 0)
return VB2_ERROR_UNKNOWN;
if (tpm_measure_region(prog_rdev(&bootblock),
TPM_CRTM_PCR,
tcpa_metadata))
return VB2_ERROR_UNKNOWN;
} else {
printk(BIOS_INFO,
"VBOOT: Couldn't measure bootblock into CRTM!\n");
return VB2_ERROR_UNKNOWN;
}
}
if (CONFIG(VBOOT_STARTS_IN_ROMSTAGE)) {
struct cbfsf romstage_data;
/* measure romstage from RO */
if (cbfs_boot_locate(&romstage_data,
prog_name(&romstage), NULL) == 0) {
cbfs_file_data(prog_rdev(&romstage), &romstage_data);
if (create_tcpa_metadata(prog_rdev(&romstage),
prog_name(&romstage), tcpa_metadata) < 0)
return VB2_ERROR_UNKNOWN;
if (tpm_measure_region(prog_rdev(&romstage),
TPM_CRTM_PCR,
tcpa_metadata))
return VB2_ERROR_UNKNOWN;
} else {
printk(BIOS_INFO,
"VBOOT: Couldn't measure %s into CRTM!\n",
CONFIG_CBFS_PREFIX "/romstage");
return VB2_ERROR_UNKNOWN;
}
}
if (CONFIG(VBOOT_SEPARATE_VERSTAGE)) {
struct cbfsf verstage_data;
/* measure verstage from RO */
if (cbfs_boot_locate(&verstage_data,
prog_name(&verstage), NULL) == 0) {
cbfs_file_data(prog_rdev(&verstage), &verstage_data);
if (create_tcpa_metadata(prog_rdev(&verstage),
prog_name(&verstage), tcpa_metadata) < 0)
return VB2_ERROR_UNKNOWN;
if (tpm_measure_region(prog_rdev(&verstage),
TPM_CRTM_PCR,
tcpa_metadata))
return VB2_ERROR_UNKNOWN;
} else {
printk(BIOS_INFO,
"VBOOT: Couldn't measure %s into CRTM!\n",
CONFIG_CBFS_PREFIX "/verstage");
return VB2_ERROR_UNKNOWN;
}
}
return VB2_SUCCESS;
}
static void vboot_prepare(void)
{
if (verification_should_run()) {
/* Note: this path is not used for VBOOT_RETURN_FROM_VERSTAGE */
verstage_main();
car_set_var(vboot_executed, 1);
vb2_save_recovery_reason_vbnv();
/*
* Avoid double memory retrain when the EC is running RW code
* and a recovery request came in through an EC host event. The
* double retrain happens because the EC won't be rebooted
* until kernel verification notices the EC isn't running RO
* code which is after memory training. Therefore, reboot the
* EC after we've saved the potential recovery request so it's
* not lost. Lastly, only perform this sequence on x86
* platforms since those are the ones that currently do a
* costly memory training in recovery mode.
*/
if (IS_ENABLED(CONFIG_EC_GOOGLE_CHROMEEC) &&
IS_ENABLED(CONFIG_ARCH_X86))
google_chromeec_early_init();
} else if (verstage_should_load()) {
struct cbfsf file;
struct prog verstage =
PROG_INIT(PROG_VERSTAGE,
CONFIG_CBFS_PREFIX "/verstage");
printk(BIOS_DEBUG, "VBOOT: Loading verstage.\n");
/* load verstage from RO */
if (cbfs_boot_locate(&file, prog_name(&verstage), NULL))
die("failed to load verstage");
cbfs_file_data(prog_rdev(&verstage), &file);
if (cbfs_prog_stage_load(&verstage))
die("failed to load verstage");
/* verify and select a slot */
prog_run(&verstage);
/* This is not actually possible to hit this condition at
* runtime, but this provides a hint to the compiler for dead
* code elimination below. */
if (!IS_ENABLED(CONFIG_VBOOT_RETURN_FROM_VERSTAGE))
return;
car_set_var(vboot_executed, 1);
}
/*
* Fill in vboot cbmem objects before moving to ramstage so all
* downstream users have access to vboot results. This path only
* applies to platforms employing VBOOT_STARTS_IN_ROMSTAGE because
* cbmem comes online prior to vboot verification taking place. For
* other platforms the vboot cbmem objects are initialized when
* cbmem comes online.
*/
if (ENV_ROMSTAGE && IS_ENABLED(CONFIG_VBOOT_STARTS_IN_ROMSTAGE)) {
vb2_store_selected_region();
vboot_fill_handoff();
}
}
