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-rw-r--r--src/soc/intel/tigerlake/me.c161
1 files changed, 161 insertions, 0 deletions
diff --git a/src/soc/intel/tigerlake/me.c b/src/soc/intel/tigerlake/me.c
index d48b32bf6b..9b61496e65 100644
--- a/src/soc/intel/tigerlake/me.c
+++ b/src/soc/intel/tigerlake/me.c
@@ -15,5 +15,166 @@
#include <bootstate.h>
#include <intelblocks/cse.h>
+#include <console/console.h>
+#include <soc/me.h>
+#include <stdint.h>
+
+/* Host Firmware Status Register 2 */
+union me_hfsts2 {
+ uint32_t data;
+ struct {
+ uint32_t nftp_load_failure : 1;
+ uint32_t icc_prog_status : 2;
+ uint32_t invoke_mebx : 1;
+ uint32_t cpu_replaced : 1;
+ uint32_t rsvd0 : 1;
+ uint32_t mfs_failure : 1;
+ uint32_t warm_reset_rqst : 1;
+ uint32_t cpu_replaced_valid : 1;
+ uint32_t low_power_state : 1;
+ uint32_t me_power_gate : 1;
+ uint32_t ipu_needed : 1;
+ uint32_t forced_safe_boot : 1;
+ uint32_t rsvd1 : 2;
+ uint32_t listener_change : 1;
+ uint32_t status_data : 8;
+ uint32_t current_pmevent : 4;
+ uint32_t phase : 4;
+ } __packed fields;
+};
+
+/* Host Firmware Status Register 4 */
+union me_hfsts4 {
+ uint32_t data;
+ struct {
+ uint32_t rsvd0 : 9;
+ uint32_t enforcement_flow : 1;
+ uint32_t sx_resume_type : 1;
+ uint32_t rsvd1 : 1;
+ uint32_t tpms_disconnected : 1;
+ uint32_t rvsd2 : 1;
+ uint32_t fwsts_valid : 1;
+ uint32_t boot_guard_self_test : 1;
+ uint32_t rsvd3 : 16;
+ } __packed fields;
+};
+
+/* Host Firmware Status Register 5 */
+union me_hfsts5 {
+ uint32_t data;
+ struct {
+ uint32_t acm_active : 1;
+ uint32_t valid : 1;
+ uint32_t result_code_source : 1;
+ uint32_t error_status_code : 5;
+ uint32_t acm_done_sts : 1;
+ uint32_t timeout_count : 7;
+ uint32_t scrtm_indicator : 1;
+ uint32_t inc_boot_guard_acm : 4;
+ uint32_t inc_key_manifest : 4;
+ uint32_t inc_boot_policy : 4;
+ uint32_t rsvd0 : 2;
+ uint32_t start_enforcement : 1;
+ } __packed fields;
+};
+
+/* Host Firmware Status Register 6 */
+union me_hfsts6 {
+ uint32_t data;
+ struct {
+ uint32_t force_boot_guard_acm : 1;
+ uint32_t cpu_debug_disable : 1;
+ uint32_t bsp_init_disable : 1;
+ uint32_t protect_bios_env : 1;
+ uint32_t rsvd0 : 2;
+ uint32_t error_enforce_policy : 2;
+ uint32_t measured_boot : 1;
+ uint32_t verified_boot : 1;
+ uint32_t boot_guard_acmsvn : 4;
+ uint32_t kmsvn : 4;
+ uint32_t bpmsvn : 4;
+ uint32_t key_manifest_id : 4;
+ uint32_t boot_policy_status : 1;
+ uint32_t error : 1;
+ uint32_t boot_guard_disable : 1;
+ uint32_t fpf_disable : 1;
+ uint32_t fpf_soc_lock : 1;
+ uint32_t txt_support : 1;
+ } __packed fields;
+};
+
+static void dump_me_status(void *unused)
+{
+ union me_hfsts1 hfsts1;
+ union me_hfsts2 hfsts2;
+ union me_hfsts3 hfsts3;
+ union me_hfsts4 hfsts4;
+ union me_hfsts5 hfsts5;
+ union me_hfsts6 hfsts6;
+
+ if (!is_cse_enabled())
+ return;
+
+ hfsts1.data = me_read_config32(PCI_ME_HFSTS1);
+ hfsts2.data = me_read_config32(PCI_ME_HFSTS2);
+ hfsts3.data = me_read_config32(PCI_ME_HFSTS3);
+ hfsts4.data = me_read_config32(PCI_ME_HFSTS4);
+ hfsts5.data = me_read_config32(PCI_ME_HFSTS5);
+ hfsts6.data = me_read_config32(PCI_ME_HFSTS6);
+
+ printk(BIOS_DEBUG, "ME: HFSTS1 : 0x%08X\n", hfsts1.data);
+ printk(BIOS_DEBUG, "ME: HFSTS2 : 0x%08X\n", hfsts2.data);
+ printk(BIOS_DEBUG, "ME: HFSTS3 : 0x%08X\n", hfsts3.data);
+ printk(BIOS_DEBUG, "ME: HFSTS4 : 0x%08X\n", hfsts4.data);
+ printk(BIOS_DEBUG, "ME: HFSTS5 : 0x%08X\n", hfsts5.data);
+ printk(BIOS_DEBUG, "ME: HFSTS6 : 0x%08X\n", hfsts6.data);
+
+ /*
+ * Lock Descriptor, and Fuses must be programmed on a
+ * production system to indicate ME Manufacturing mode is disabled.
+ */
+ printk(BIOS_DEBUG, "ME: Manufacturing Mode : %s\n",
+ ((hfsts1.fields.spi_protection_mode == 0) &&
+ (hfsts6.fields.fpf_soc_lock == 1)) ? "NO" : "YES");
+ /*
+ * The SPI Protection Mode bit reflects SPI descriptor
+ * locked(0) or unlocked(1).
+ */
+ printk(BIOS_DEBUG, "ME: SPI Protection Mode Enabled : %s\n",
+ hfsts1.fields.spi_protection_mode ? "NO" : "YES");
+ printk(BIOS_DEBUG, "ME: FW Partition Table : %s\n",
+ hfsts1.fields.fpt_bad ? "BAD" : "OK");
+ printk(BIOS_DEBUG, "ME: Bringup Loader Failure : %s\n",
+ hfsts1.fields.ft_bup_ld_flr ? "YES" : "NO");
+ printk(BIOS_DEBUG, "ME: Firmware Init Complete : %s\n",
+ hfsts1.fields.fw_init_complete ? "YES" : "NO");
+ printk(BIOS_DEBUG, "ME: Boot Options Present : %s\n",
+ hfsts1.fields.boot_options_present ? "YES" : "NO");
+ printk(BIOS_DEBUG, "ME: Update In Progress : %s\n",
+ hfsts1.fields.update_in_progress ? "YES" : "NO");
+ printk(BIOS_DEBUG, "ME: D0i3 Support : %s\n",
+ hfsts1.fields.d0i3_support_valid ? "YES" : "NO");
+ printk(BIOS_DEBUG, "ME: Low Power State Enabled : %s\n",
+ hfsts2.fields.low_power_state ? "YES" : "NO");
+ printk(BIOS_DEBUG, "ME: CPU Replaced : %s\n",
+ hfsts2.fields.cpu_replaced ? "YES" : "NO");
+ printk(BIOS_DEBUG, "ME: CPU Replacement Valid : %s\n",
+ hfsts2.fields.cpu_replaced_valid ? "YES" : "NO");
+ printk(BIOS_DEBUG, "ME: Current Working State : %u\n",
+ hfsts1.fields.working_state);
+ printk(BIOS_DEBUG, "ME: Current Operation State : %u\n",
+ hfsts1.fields.operation_state);
+ printk(BIOS_DEBUG, "ME: Current Operation Mode : %u\n",
+ hfsts1.fields.operation_mode);
+ printk(BIOS_DEBUG, "ME: Error Code : %u\n",
+ hfsts1.fields.error_code);
+ printk(BIOS_DEBUG, "ME: Enhanced Debug Mode : %s\n",
+ hfsts1.fields.invoke_enhance_dbg_mode ? "YES" : "NO");
+ printk(BIOS_DEBUG, "ME: CPU Debug Disabled : %s\n",
+ hfsts6.fields.cpu_debug_disable ? "YES" : "NO");
+ printk(BIOS_DEBUG, "ME: TXT Support : %s\n",
+ hfsts6.fields.txt_support ? "YES" : "NO");
+}
BOOT_STATE_INIT_ENTRY(BS_DEV_ENABLE, BS_ON_EXIT, print_me_fw_version, NULL);
+BOOT_STATE_INIT_ENTRY(BS_OS_RESUME_CHECK, BS_ON_EXIT, dump_me_status, NULL);