soc/intel/icelake: Add function to dump ME firmware status information

Add a function to dump ME Host Firmware Status registers.

BUG=None
BRANCH=None
TEST=Build and boot iclrvp.

Change-Id: I9430189665c94decb2e64680d28a7390ee6e912c
Signed-off-by: Krishna Prasad Bhat <krishna.p.bhat.d@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39128
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Wonkyu Kim <wonkyu.kim@intel.com>
Reviewed-by: Rizwan Qureshi <rizwan.qureshi@intel.com>

1 files changed, 148 insertions, 0 deletions

diff --git a/src/soc/intel/icelake/me.c b/src/soc/intel/icelake/me.c
index d48b32bf6b..bbfd166061 100644
--- a/src/soc/intel/icelake/me.c
+++ b/src/soc/intel/icelake/me.c
@@ -15,5 +15,153 @@
 
 #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);
+
+	printk(BIOS_DEBUG, "ME: Manufacturing Mode      : %s\n",
+		hfsts1.fields.mfg_mode ? "YES" : "NO");
+	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: 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);