blob: e595b998ed3d96bf3abe851d192639ae56a34b59 [file] [log] [blame]
/* SPDX-License-Identifier: GPL-2.0-only */
#include <bootstate.h>
#include <console/console.h>
#include <boot_device.h>
#include <cbfs.h>
#include <commonlib/cbfs.h>
#include <commonlib/region.h>
#include <fmap.h>
#include <intelblocks/cse.h>
#include <security/vboot/vboot_common.h>
#include <security/vboot/misc.h>
#include <vb2_api.h>
#include <soc/intel/common/reset.h>
/* CSE RW version size reserved in the CSE CBFS RW binary */
#define CSE_RW_VERSION_SZ 16
/* Converts bp index to boot partition string */
#define GET_BP_STR(bp_index) (bp_index ? "RW" : "RO")
/* CSE RW boot partition signature */
#define CSE_RW_SIGNATURE 0x000055aa
/* CSE RW boot partition signature size */
#define CSE_RW_SIGN_SIZE sizeof(uint32_t)
/*
* CSE Firmware supports 3 boot partitions. For CSE Lite SKU, only 2 boot partitions are
* used and 3rd boot partition is set to BP_STATUS_PARTITION_NOT_PRESENT.
* CSE Lite SKU Image Layout:
* ------------- ------------------- ---------------------
* |CSE REGION | => | RO | RW | DATA | => | BP1 | BP2 | DATA |
* ------------- ------------------- ---------------------
*/
#define CSE_MAX_BOOT_PARTITIONS 3
/* CSE Lite SKU's valid bootable partition identifiers */
enum boot_partition_id {
/* RO(BP1) contains recovery/minimal boot firmware */
RO = 0,
/* RW(BP2) contains fully functional CSE firmware */
RW = 1
};
/* CSE recovery sub-error codes */
enum csme_failure_reason {
/* Unspecified error */
CSE_LITE_SKU_UNSPECIFIED = 1,
/* CSE fails to boot from RW */
CSE_LITE_SKU_RW_JUMP_ERROR = 2,
/* CSE RW boot partition access error */
CSE_LITE_SKU_RW_ACCESS_ERROR = 3,
/* Fails to set next boot partition as RW */
CSE_LITE_SKU_RW_SWITCH_ERROR = 4,
/* CSE firmware update failure */
CSE_LITE_SKU_FW_UPDATE_ERROR = 5,
/* Fails to communicate with CSE */
CSE_LITE_SKU_COMMUNICATION_ERROR = 6,
/* Fails to wipe CSE runtime data */
CSE_LITE_SKU_DATA_WIPE_ERROR = 7
};
/*
* Boot partition status.
* The status is returned in response to MKHI_BUP_COMMON_GET_BOOT_PARTITION_INFO cmd.
*/
enum bp_status {
/* This value is returned when a partition has no errors */
BP_STATUS_SUCCESS = 0,
/*
* This value is returned when a partition should be present based on layout, but it is
* not valid.
*/
BP_STATUS_GENERAL_FAILURE = 1,
/* This value is returned when a partition is not present per initial image layout */
BP_STATUS_PARTITION_NOT_PRESENT = 2,
/*
* This value is returned when unexpected issues are detected in CSE Data area
* and CSE TCB-SVN downgrade scenario.
*/
BP_STATUS_DATA_FAILURE = 3,
};
/*
* Boot Partition Info Flags
* The flags are returned in response to MKHI_BUP_COMMON_GET_BOOT_PARTITION_INFO cmd.
*/
enum bp_info_flags {
/* Redundancy Enabled: It indicates CSE supports RO(BP1) and RW(BP2) regions */
BP_INFO_REDUNDANCY_EN = 1 << 0,
/* It indicates RO(BP1) supports Minimal Recovery Mode */
BP_INFO_MIN_RECOV_MODE_EN = 1 << 1,
/*
* Read-only Config Enabled: It indicates HW protection to CSE RO region is enabled.
* The option is relevant only if the BP_INFO_MIN_RECOV_MODE_EN flag is enabled.
*/
BP_INFO_READ_ONLY_CFG = 1 << 2,
};
/* Boot Partition FW Version */
struct fw_version {
uint16_t major;
uint16_t minor;
uint16_t hotfix;
uint16_t build;
} __packed;
/* CSE boot partition entry info */
struct cse_bp_entry {
/* Boot partition version */
struct fw_version fw_ver;
/* Boot partition status */
uint32_t status;
/* Starting offset of the partition within CSE region */
uint32_t start_offset;
/* Ending offset of the partition within CSE region */
uint32_t end_offset;
uint8_t reserved[12];
} __packed;
/* CSE boot partition info */
struct cse_bp_info {
/* Number of boot partitions */
uint8_t total_number_of_bp;
/* Current boot partition */
uint8_t current_bp;
/* Next boot partition */
uint8_t next_bp;
/* Boot Partition Info Flags */
uint8_t flags;
/* Boot Partition Entry Info */
struct cse_bp_entry bp_entries[CSE_MAX_BOOT_PARTITIONS];
} __packed;
struct get_bp_info_rsp {
struct mkhi_hdr hdr;
struct cse_bp_info bp_info;
} __packed;
static void cse_log_status_registers(void)
{
printk(BIOS_DEBUG, "cse_lite: CSE status registers: HFSTS1: 0x%x, HFSTS2: 0x%x "
"HFSTS3: 0x%x\n", me_read_config32(PCI_ME_HFSTS1),
me_read_config32(PCI_ME_HFSTS2), me_read_config32(PCI_ME_HFSTS3));
}
static void cse_trigger_recovery(uint8_t rec_sub_code)
{
/* Log CSE Firmware Status Registers to help debugging */
cse_log_status_registers();
if (CONFIG(VBOOT)) {
struct vb2_context *ctx = vboot_get_context();
if (ctx == NULL)
goto failure;
vb2api_fail(ctx, VB2_RECOVERY_INTEL_CSE_LITE_SKU, rec_sub_code);
vboot_save_data(ctx);
vboot_reboot();
}
failure:
die("cse_lite: Failed to trigger recovery mode(recovery subcode:%d)\n", rec_sub_code);
}
static uint8_t cse_get_current_bp(const struct cse_bp_info *cse_bp_info)
{
return cse_bp_info->current_bp;
}
static const struct cse_bp_entry *cse_get_bp_entry(enum boot_partition_id bp,
const struct cse_bp_info *cse_bp_info)
{
return &cse_bp_info->bp_entries[bp];
}
static void cse_get_bp_entry_range(const struct cse_bp_info *cse_bp_info,
enum boot_partition_id bp, uint32_t *start_offset, uint32_t *end_offset)
{
const struct cse_bp_entry *cse_bp;
cse_bp = cse_get_bp_entry(bp, cse_bp_info);
if (start_offset)
*start_offset = cse_bp->start_offset;
if (end_offset)
*end_offset = cse_bp->end_offset;
}
static const struct fw_version *cse_get_bp_entry_version(enum boot_partition_id bp,
const struct cse_bp_info *bp_info)
{
const struct cse_bp_entry *cse_bp;
cse_bp = cse_get_bp_entry(bp, bp_info);
return &cse_bp->fw_ver;
}
static const struct fw_version *cse_get_rw_version(const struct cse_bp_info *cse_bp_info)
{
return cse_get_bp_entry_version(RW, cse_bp_info);
}
static bool cse_is_rw_bp_status_valid(const struct cse_bp_info *cse_bp_info)
{
const struct cse_bp_entry *rw_bp;
rw_bp = cse_get_bp_entry(RW, cse_bp_info);
if (rw_bp->status == BP_STATUS_PARTITION_NOT_PRESENT ||
rw_bp->status == BP_STATUS_GENERAL_FAILURE) {
printk(BIOS_ERR, "cse_lite: RW BP (status:%u) is not valid\n", rw_bp->status);
return false;
}
return true;
}
static void cse_print_boot_partition_info(const struct cse_bp_info *cse_bp_info)
{
const struct cse_bp_entry *cse_bp;
printk(BIOS_DEBUG, "cse_lite: Number of partitions = %d\n",
cse_bp_info->total_number_of_bp);
printk(BIOS_DEBUG, "cse_lite: Current partition = %s\n",
GET_BP_STR(cse_bp_info->current_bp));
printk(BIOS_DEBUG, "cse_lite: Next partition = %s\n", GET_BP_STR(cse_bp_info->next_bp));
printk(BIOS_DEBUG, "cse_lite: Flags = 0x%x\n", cse_bp_info->flags);
/* Log version info of RO & RW partitions */
cse_bp = cse_get_bp_entry(RO, cse_bp_info);
printk(BIOS_DEBUG, "cse_lite: %s version = %d.%d.%d.%d (Status=0x%x, Start=0x%x, End=0x%x)\n",
GET_BP_STR(RO), cse_bp->fw_ver.major, cse_bp->fw_ver.minor,
cse_bp->fw_ver.hotfix, cse_bp->fw_ver.build,
cse_bp->status, cse_bp->start_offset,
cse_bp->end_offset);
cse_bp = cse_get_bp_entry(RW, cse_bp_info);
printk(BIOS_DEBUG, "cse_lite: %s version = %d.%d.%d.%d (Status=0x%x, Start=0x%x, End=0x%x)\n",
GET_BP_STR(RW), cse_bp->fw_ver.major, cse_bp->fw_ver.minor,
cse_bp->fw_ver.hotfix, cse_bp->fw_ver.build,
cse_bp->status, cse_bp->start_offset,
cse_bp->end_offset);
}
/*
* Checks prerequisites for MKHI_BUP_COMMON_GET_BOOT_PARTITION_INFO and
* MKHI_BUP_COMMON_SET_BOOT_PARTITION_INFO HECI commands.
* It allows execution of the Boot Partition commands in below scenarios:
* - When CSE boots from RW partition (COM: Normal and CWS: Normal)
* - When CSE boots from RO partition (COM: Soft Temp Disable and CWS: Normal)
* - After HMRFPO_ENABLE command is issued to CSE (COM: SECOVER_MEI_MSG and CWS: Normal)
* The prerequisite check should be handled in cse_get_bp_info() and
* cse_set_next_boot_partition() since the CSE's current operation mode is changed between these
* cmd handler calls.
*/
static bool cse_is_bp_cmd_info_possible(void)
{
if (cse_is_hfs1_cws_normal()) {
if (cse_is_hfs1_com_normal())
return true;
if (cse_is_hfs1_com_secover_mei_msg())
return true;
if (cse_is_hfs1_com_soft_temp_disable())
return true;
}
return false;
}
static bool cse_get_bp_info(struct get_bp_info_rsp *bp_info_rsp)
{
struct get_bp_info_req {
struct mkhi_hdr hdr;
uint8_t reserved[4];
} __packed;
struct get_bp_info_req info_req = {
.hdr.group_id = MKHI_GROUP_ID_BUP_COMMON,
.hdr.command = MKHI_BUP_COMMON_GET_BOOT_PARTITION_INFO,
.reserved = {0},
};
if (!cse_is_bp_cmd_info_possible()) {
printk(BIOS_ERR, "cse_lite: CSE does not meet prerequisites\n");
return false;
}
size_t resp_size = sizeof(struct get_bp_info_rsp);
if (!heci_send_receive(&info_req, sizeof(info_req), bp_info_rsp, &resp_size)) {
printk(BIOS_ERR, "cse_lite: Could not get partition info\n");
return false;
}
if (bp_info_rsp->hdr.result) {
printk(BIOS_ERR, "cse_lite: Get partition info resp failed: %d\n",
bp_info_rsp->hdr.result);
return false;
}
cse_print_boot_partition_info(&bp_info_rsp->bp_info);
return true;
}
/*
* It sends HECI command to notify CSE about its next boot partition. When coreboot wants
* CSE to boot from certain partition (BP1 <RO> or BP2 <RW>), then this command can be used.
* The CSE's valid bootable partitions are BP1(RO) and BP2(RW).
* This function must be used before EOP.
* Returns false on failure and true on success.
*/
static bool cse_set_next_boot_partition(enum boot_partition_id bp)
{
struct set_boot_partition_info_req {
struct mkhi_hdr hdr;
uint8_t next_bp;
uint8_t reserved[3];
} __packed;
struct set_boot_partition_info_req switch_req = {
.hdr.group_id = MKHI_GROUP_ID_BUP_COMMON,
.hdr.command = MKHI_BUP_COMMON_SET_BOOT_PARTITION_INFO,
.next_bp = bp,
.reserved = {0},
};
if (bp != RO && bp != RW) {
printk(BIOS_ERR, "cse_lite: Incorrect partition id(%d) is provided", bp);
return false;
}
printk(BIOS_INFO, "cse_lite: Set Boot Partition Info Command (%s)\n", GET_BP_STR(bp));
if (!cse_is_bp_cmd_info_possible()) {
printk(BIOS_ERR, "cse_lite: CSE does not meet prerequisites\n");
return false;
}
struct mkhi_hdr switch_resp;
size_t sw_resp_sz = sizeof(struct mkhi_hdr);
if (!heci_send_receive(&switch_req, sizeof(switch_req), &switch_resp, &sw_resp_sz))
return false;
if (switch_resp.result) {
printk(BIOS_ERR, "cse_lite: Set Boot Partition Info Response Failed: %d\n",
switch_resp.result);
return false;
}
return true;
}
__weak void cse_board_reset(void)
{
/* Default weak implementation, does nothing. */
}
/* Set the CSE's next boot partition and issues system reset */
static bool cse_set_and_boot_from_next_bp(enum boot_partition_id bp)
{
if (!cse_set_next_boot_partition(bp))
return false;
/* Allow the board to perform a reset for CSE RO<->RW jump */
cse_board_reset();
/* If board does not perform the reset, then perform global_reset */
global_reset();
die("cse_lite: Failed to reset the system\n");
/* Control never reaches here */
return false;
}
static bool cse_boot_to_rw(const struct cse_bp_info *cse_bp_info)
{
if (cse_get_current_bp(cse_bp_info) == RW)
return true;
return cse_set_and_boot_from_next_bp(RW);
}
static bool cse_boot_to_ro(const struct cse_bp_info *cse_bp_info)
{
if (cse_get_current_bp(cse_bp_info) == RO)
return true;
return cse_set_and_boot_from_next_bp(RO);
}
static bool cse_get_rw_rdev(struct region_device *rdev)
{
if (fmap_locate_area_as_rdev_rw(CONFIG_SOC_INTEL_CSE_FMAP_NAME, rdev) < 0) {
printk(BIOS_ERR, "cse_lite: Failed to locate %s in FMAP\n",
CONFIG_SOC_INTEL_CSE_FMAP_NAME);
return false;
}
return true;
}
static bool cse_get_cbfs_rdev(struct region_device *source_rdev)
{
struct cbfsf file_desc;
if (cbfs_boot_locate(&file_desc, CONFIG_SOC_INTEL_CSE_RW_CBFS_NAME, NULL) < 0)
return false;
cbfs_file_data(source_rdev, &file_desc);
return true;
}
static bool cse_is_rw_bp_sign_valid(const struct region_device *target_rdev)
{
uint32_t cse_bp_sign;
if (rdev_readat(target_rdev, &cse_bp_sign, 0, CSE_RW_SIGN_SIZE) != CSE_RW_SIGN_SIZE) {
printk(BIOS_ERR, "cse_lite: Failed to read RW boot partition signature\n");
return false;
}
return cse_bp_sign == CSE_RW_SIGNATURE;
}
static bool cse_get_target_rdev(const struct cse_bp_info *cse_bp_info,
struct region_device *target_rdev)
{
struct region_device cse_region_rdev;
size_t size;
uint32_t start_offset;
uint32_t end_offset;
if (!cse_get_rw_rdev(&cse_region_rdev))
return false;
cse_get_bp_entry_range(cse_bp_info, RW, &start_offset, &end_offset);
size = end_offset + 1 - start_offset;
if (rdev_chain(target_rdev, &cse_region_rdev, start_offset, size))
return false;
printk(BIOS_DEBUG, "cse_lite: CSE RW partition: offset = 0x%x, size = 0x%x\n",
(uint32_t)start_offset, (uint32_t) size);
return true;
}
static bool cse_data_clear_request(const struct cse_bp_info *cse_bp_info)
{
struct data_clr_request {
struct mkhi_hdr hdr;
uint8_t reserved[4];
} __packed;
struct data_clr_request data_clr_rq = {
.hdr.group_id = MKHI_GROUP_ID_BUP_COMMON,
.hdr.command = MKHI_BUP_COMMON_DATA_CLEAR,
.reserved = {0},
};
if (!cse_is_hfs1_cws_normal() || !cse_is_hfs1_com_soft_temp_disable() ||
cse_get_current_bp(cse_bp_info) != RO) {
printk(BIOS_ERR, "cse_lite: CSE doesn't meet DATA CLEAR cmd prerequisites\n");
return false;
}
printk(BIOS_DEBUG, "cse_lite: Sending DATA CLEAR HECI command\n");
struct mkhi_hdr data_clr_rsp;
size_t data_clr_rsp_sz = sizeof(data_clr_rsp);
if (!heci_send_receive(&data_clr_rq, sizeof(data_clr_rq), &data_clr_rsp,
&data_clr_rsp_sz)) {
return false;
}
if (data_clr_rsp.result) {
printk(BIOS_ERR, "cse_lite: CSE DATA CLEAR command response failed: %d\n",
data_clr_rsp.result);
return false;
}
return true;
}
static bool cse_get_cbfs_rw_version(const struct region_device *source_rdev,
void *cse_cbfs_rw_ver)
{
if (rdev_readat(source_rdev, (void *) cse_cbfs_rw_ver, 0, sizeof(struct fw_version))
!= sizeof(struct fw_version)) {
printk(BIOS_ERR, "cse_lite: Failed to read CSE CBFW RW version\n");
return false;
}
return true;
}
/*
* Compare versions of CSE CBFS RW and CSE RW partition
* If ver_cmp_status = 0, no update is required
* If ver_cmp_status < 0, coreboot downgrades CSE RW region
* If ver_cmp_status > 0, coreboot upgrades CSE RW region
*/
static int cse_check_version_mismatch(const struct cse_bp_info *cse_bp_info,
const struct region_device *source_rdev)
{
struct fw_version cse_cbfs_rw_ver;
const struct fw_version *cse_rw_ver;
if (!cse_get_cbfs_rw_version(source_rdev, &cse_cbfs_rw_ver))
return false;
printk(BIOS_DEBUG, "cse_lite: CSE CBFS RW version : %d.%d.%d.%d\n",
cse_cbfs_rw_ver.major,
cse_cbfs_rw_ver.minor,
cse_cbfs_rw_ver.hotfix,
cse_cbfs_rw_ver.build);
cse_rw_ver = cse_get_rw_version(cse_bp_info);
if (cse_cbfs_rw_ver.major != cse_rw_ver->major)
return cse_cbfs_rw_ver.major - cse_rw_ver->major;
else if (cse_cbfs_rw_ver.minor != cse_rw_ver->minor)
return cse_cbfs_rw_ver.minor - cse_rw_ver->minor;
else if (cse_cbfs_rw_ver.hotfix != cse_rw_ver->hotfix)
return cse_cbfs_rw_ver.hotfix - cse_rw_ver->hotfix;
else
return cse_cbfs_rw_ver.build - cse_rw_ver->build;
}
/* Check if CSE RW data partition is valid or not */
static bool cse_is_rw_dp_valid(const struct cse_bp_info *cse_bp_info)
{
const struct cse_bp_entry *rw_bp;
rw_bp = cse_get_bp_entry(RW, cse_bp_info);
return rw_bp->status != BP_STATUS_DATA_FAILURE;
}
/*
* It returns true if RW partition doesn't indicate BP_STATUS_DATA_FAILURE
* otherwise false if any operation fails.
*/
static bool cse_fix_data_failure_err(const struct cse_bp_info *cse_bp_info)
{
/*
* If RW partition status indicates BP_STATUS_DATA_FAILURE,
* - Send DATA CLEAR HECI command to CSE
* - Send SET BOOT PARTITION INFO(RW) command to set CSE's next partition
* - Issue GLOBAL RESET HECI command.
*/
if (cse_is_rw_dp_valid(cse_bp_info))
return true;
if (!cse_data_clear_request(cse_bp_info))
return false;
return cse_boot_to_rw(cse_bp_info);
}
static bool cse_erase_rw_region(const struct region_device *target_rdev)
{
if (rdev_eraseat(target_rdev, 0, region_device_sz(target_rdev)) < 0) {
printk(BIOS_ERR, "cse_lite: CSE RW partition could not be erased\n");
return false;
}
return true;
}
static bool cse_copy_rw(const struct region_device *target_rdev, const void *buf, size_t offset,
size_t size)
{
if (rdev_writeat(target_rdev, buf, offset, size) < 0) {
printk(BIOS_ERR, "cse_lite: Failed to update CSE firmware\n");
return false;
}
return true;
}
static bool cse_is_rw_version_latest(const struct cse_bp_info *cse_bp_info,
const struct region_device *source_rdev)
{
return !cse_check_version_mismatch(cse_bp_info, source_rdev);
}
static bool cse_is_downgrade_instance(const struct cse_bp_info *cse_bp_info,
const struct region_device *source_rdev)
{
return cse_check_version_mismatch(cse_bp_info, source_rdev) < 0;
}
static bool cse_is_update_required(const struct cse_bp_info *cse_bp_info,
const struct region_device *source_rdev, struct region_device *target_rdev)
{
return (!cse_is_rw_bp_sign_valid(target_rdev) ||
!cse_is_rw_version_latest(cse_bp_info, source_rdev));
}
static bool cse_write_rw_region(const struct region_device *target_rdev,
const struct region_device *source_rdev)
{
void *cse_cbfs_rw = rdev_mmap(source_rdev, CSE_RW_VERSION_SZ,
region_device_sz(source_rdev) - CSE_RW_VERSION_SZ);
/* Points to CSE CBFS RW image after boot partition signature */
uint8_t *cse_cbfs_rw_wo_sign = (uint8_t *)cse_cbfs_rw + CSE_RW_SIGN_SIZE;
/* Size of CSE CBFS RW image without boot partition signature */
uint32_t cse_cbfs_rw_wo_sign_sz = region_device_sz(source_rdev) -
(CSE_RW_VERSION_SZ + CSE_RW_SIGN_SIZE);
/* Update except CSE RW signature */
if (!cse_copy_rw(target_rdev, cse_cbfs_rw_wo_sign, CSE_RW_SIGN_SIZE,
cse_cbfs_rw_wo_sign_sz))
goto exit_rw_update;
/* Update CSE RW signature to indicate update is complete */
if (!cse_copy_rw(target_rdev, (void *)cse_cbfs_rw, 0, CSE_RW_SIGN_SIZE))
goto exit_rw_update;
rdev_munmap(source_rdev, cse_cbfs_rw_wo_sign);
return true;
exit_rw_update:
rdev_munmap(source_rdev, cse_cbfs_rw_wo_sign);
return false;
}
static bool cse_update_rw(const struct cse_bp_info *cse_bp_info,
const struct region_device *source_rdev, struct region_device *target_rdev)
{
if (!cse_erase_rw_region(target_rdev))
return false;
if (!cse_write_rw_region(target_rdev, source_rdev))
return false;
printk(BIOS_INFO, "cse_lite: CSE RW Update Successful\n");
return true;
}
static bool cse_prep_for_rw_update(const struct cse_bp_info *cse_bp_info,
const struct region_device *source_rdev)
{
/*
* To set CSE's operation mode to HMRFPO mode:
* 1. Ensure CSE to boot from RO(BP1)
* 2. Send HMRFPO_ENABLE command to CSE
*/
if (!cse_boot_to_ro(cse_bp_info))
return false;
if (cse_is_downgrade_instance(cse_bp_info, source_rdev) &&
!cse_data_clear_request(cse_bp_info)) {
printk(BIOS_ERR, "cse_lite: CSE FW downgrade is aborted\n");
return false;
}
return cse_hmrfpo_enable();
}
static uint8_t cse_trigger_fw_update(const struct cse_bp_info *cse_bp_info,
const struct region_device *source_rdev, struct region_device *target_rdev)
{
if (!cse_prep_for_rw_update(cse_bp_info, source_rdev))
return CSE_LITE_SKU_COMMUNICATION_ERROR;
if (!cse_update_rw(cse_bp_info, source_rdev, target_rdev))
return CSE_LITE_SKU_FW_UPDATE_ERROR;
return 0;
}
static uint8_t cse_fw_update(const struct cse_bp_info *cse_bp_info,
const struct region_device *source_rdev)
{
struct region_device target_rdev;
if (!cse_get_target_rdev(cse_bp_info, &target_rdev)) {
printk(BIOS_ERR, "cse_lite: Failed to get CSE RW Partition\n");
return CSE_LITE_SKU_RW_ACCESS_ERROR;
}
if (cse_is_update_required(cse_bp_info, source_rdev, &target_rdev)) {
printk(BIOS_DEBUG, "cse_lite: CSE RW update is initiated\n");
return cse_trigger_fw_update(cse_bp_info, source_rdev, &target_rdev);
}
if (!cse_is_rw_bp_status_valid(cse_bp_info))
return CSE_LITE_SKU_RW_JUMP_ERROR;
return 0;
}
void cse_fw_sync(void *unused)
{
static struct get_bp_info_rsp cse_bp_info;
if (vboot_recovery_mode_enabled()) {
printk(BIOS_DEBUG, "cse_lite: Skip switching to RW in the recovery path\n");
return;
}
/* If CSE SKU type is not Lite, skip enabling CSE Lite SKU */
if (!cse_is_hfs3_fw_sku_lite()) {
printk(BIOS_ERR, "cse_lite: Not a CSE Lite SKU\n");
return;
}
if (!cse_get_bp_info(&cse_bp_info)) {
printk(BIOS_ERR, "cse_lite: Failed to get CSE boot partition info\n");
cse_trigger_recovery(CSE_LITE_SKU_COMMUNICATION_ERROR);
}
if (!cse_fix_data_failure_err(&cse_bp_info.bp_info))
cse_trigger_recovery(CSE_LITE_SKU_DATA_WIPE_ERROR);
/* If RW blob is present in CBFS, then trigger CSE firmware update */
uint8_t rv;
struct region_device source_rdev;
if (cse_get_cbfs_rdev(&source_rdev)) {
rv = cse_fw_update(&cse_bp_info.bp_info, &source_rdev);
if (rv)
cse_trigger_recovery(rv);
}
if (!cse_boot_to_rw(&cse_bp_info.bp_info)) {
printk(BIOS_ERR, "cse_lite: Failed to switch to RW\n");
cse_trigger_recovery(CSE_LITE_SKU_RW_SWITCH_ERROR);
}
}
#if CONFIG(SOC_INTEL_TIGERLAKE) || CONFIG(SOC_INTEL_JASPERLAKE)
/*
* This needs to happen after the MRC cache write to avoid a 2nd
* memory training sequence.
*/
BOOT_STATE_INIT_ENTRY(BS_DEV_RESOURCES, BS_ON_ENTRY, cse_fw_sync, NULL);
#else
BOOT_STATE_INIT_ENTRY(BS_PRE_DEVICE, BS_ON_ENTRY, cse_fw_sync, NULL);
#endif