soc/intel/common: Trigger recovery mode for CSE Lite SKU run time errors

Implement triggering recovery mode for CSE Lite SKU runtime errors. Also,
define recovery subcodes for various possible Lite SKU runtime errors.

BUG=b:153520354
TEST=Verified on hatch

Signed-off-by: Sridhar Siricilla <sridhar.siricilla@intel.com>
Change-Id: Ib7744fc4fd0e41804d9b45079bf706b300220c62
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40563
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: V Sowmya <v.sowmya@intel.com>
Reviewed-by: Rizwan Qureshi <rizwan.qureshi@intel.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>

1 files changed, 42 insertions, 7 deletions

diff --git a/src/soc/intel/common/block/cse/cse_lite.c b/src/soc/intel/common/block/cse/cse_lite.c
index b985a94628..1f9e2ce225 100644
--- a/src/soc/intel/common/block/cse/cse_lite.c
+++ b/src/soc/intel/common/block/cse/cse_lite.c
@@ -4,6 +4,8 @@
 #include <soc/intel/common/reset.h>
 #include <intelblocks/cse.h>
 #include <security/vboot/vboot_common.h>
+#include <security/vboot/misc.h>
+#include <vb2_api.h>
 
 /* Converts bp index to boot partition string */
 #define GET_BP_STR(bp_index) (bp_index ? "RW" : "RO")
@@ -27,6 +29,30 @@ enum boot_partition_id {
 	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.
@@ -112,6 +138,19 @@ struct get_bp_info_rsp {
 	struct cse_bp_info bp_info;
 } __packed;
 
+static void cse_trigger_recovery(uint8_t rec_sub_code)
+{
+	if (CONFIG(VBOOT)) {
+		struct vb2_context *ctx;
+		ctx = vboot_get_context();
+		vb2api_fail(ctx, VB2_RECOVERY_INTEL_CSE_LITE_SKU, rec_sub_code);
+		vboot_save_data(ctx);
+		vboot_reboot();
+	}
+
+	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;
@@ -306,22 +345,18 @@ void cse_fw_sync(void *unused)
 
 	if (!cse_get_bp_info(&cse_bp_info)) {
 		printk(BIOS_ERR, "cse_bp: Failed to get CSE boot partition info\n");
-		goto failed;
+		cse_trigger_recovery(CSE_LITE_SKU_COMMUNICATION_ERROR);
 	}
 
-
 	if (!cse_is_rw_info_valid(&cse_bp_info.bp_info)) {
 		printk(BIOS_ERR, "cse_bp: CSE RW partition is not valid\n");
-		goto failed;
+		cse_trigger_recovery(CSE_LITE_SKU_RW_JUMP_ERROR);
 	}
 
 	if (!cse_boot_to_rw(&cse_bp_info.bp_info)) {
 		printk(BIOS_ERR, "cse_bp: Failed to switch to RW\n");
-		goto failed;
+		cse_trigger_recovery(CSE_LITE_SKU_RW_SWITCH_ERROR);
 	}
-	return;
-failed:
-	do_global_reset();
 }
 
 BOOT_STATE_INIT_ENTRY(BS_PRE_DEVICE, BS_ON_ENTRY, cse_fw_sync, NULL);