drivers/intel/fsp2_0: Add support for FSP_ERROR_INFO_HOB

Add a new Kconfig CONFIG_ENABLE_FSP_ERROR_INFO option to enable
retrieval of FSP_ERROR_INFO_HOB from HobList created by FSP.
Such a HOB could be generated by Intel SPR-SP FSP.
This HOB data is defined in Intel®Firmware Support Package
External Architecture Specification v2.1 Doc#611786-2.1.

Change-Id: I812d1c22c1bbe5146630948ca6ca12c46ffd5504
Signed-off-by: Ray Han Lim, Ng <ray.han.lim.ng@intel.com>
Signed-off-by: Johnny Lin <johnny_lin@wiwynn.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/71949
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>

src/drivers/intel/fsp2_0/Kconfig.debug_blob

@@ -45,6 +45,16 @@ config DISPLAY_FSP_VERSION_INFO_2
 	  Select this option to display Firmware version information
 	  using new header 'FirmwareVersionInfo.h'.
 
+config ENABLE_FSP_ERROR_INFO
+	bool "Enable FSP Error Information"
+	default n
+	depends on PLATFORM_USES_FSP2_1
+	help
+	  Select this option to enable FSP Error information. FSP detects certain errors
+	  and notifies coreboot of a fatal error occurring during the execution of the FSP.
+	  Although it's defined in FSP v2.1 but has only been verified on Intel Xeon-SP
+	  Sapphire Rapids.
+
 config HAVE_GPIO_SNAPSHOT_VERIFY_SUPPORT
 	bool
 	default n

src/drivers/intel/fsp2_0/Makefile.inc

@@ -15,6 +15,7 @@ romstage-y += util.c
 romstage-y += memory_init.c
 romstage-$(CONFIG_MMA) += mma_core.c
 romstage-y += cbmem.c
+romstage-$(CONFIG_ENABLE_FSP_ERROR_INFO) += fsp_error_info_hob.c
 
 ramstage-y += debug.c
 ramstage-$(CONFIG_FSP_USES_CB_DEBUG_EVENT_HANDLER) += fsp_debug_event.c
@@ -31,6 +32,7 @@ ramstage-$(CONFIG_DISPLAY_UPD_DATA) += upd_display.c
 ramstage-y += util.c
 ramstage-$(CONFIG_CACHE_MRC_SETTINGS) += save_mrc_data.c
 ramstage-$(CONFIG_MMA) += mma_core.c
+ramstage-$(CONFIG_ENABLE_FSP_ERROR_INFO) += fsp_error_info_hob.c
 
 ifneq ($(CONFIG_NO_FSP_TEMP_RAM_EXIT),y)
 postcar-$(CONFIG_FSP_CAR) += temp_ram_exit.c

src/drivers/intel/fsp2_0/fsp_error_info_hob.c

@@ -0,0 +1,14 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include <console/console.h>
+#include <fsp/util.h>
+
+void display_fsp_error_info_hob(const void *hob)
+{
+	const FSP_ERROR_INFO_HOB *fsp_error_info_hob = (FSP_ERROR_INFO_HOB *)hob;
+	printk(BIOS_ERR, "FspErrorInfoHob->CallerId  = ");
+	fsp_print_guid(BIOS_CRIT, &fsp_error_info_hob->CallerId);
+	printk(BIOS_ERR, "\nFspErrorInfoHob->ErrorType  = ");
+	fsp_print_guid(BIOS_CRIT, &fsp_error_info_hob->ErrorType);
+	printk(BIOS_ERR, "\nFspErrorInfoHob->Status  = %x\n", fsp_error_info_hob->Status);
+}

src/drivers/intel/fsp2_0/hand_off_block.c

@@ -32,6 +32,11 @@ const uint8_t fsp_nv_storage_guid[16] = {
 	0xb3, 0xdc, 0x27, 0x0b, 0x7b, 0xa9, 0xe4, 0xb0
 };
 
+const uint8_t fsp_error_info_guid[16] = {
+	0x88, 0x6a, 0x1e, 0x61, 0xb7, 0xad, 0x01, 0x43,
+	0x93, 0xff, 0xe4, 0x73, 0x04, 0xb4, 0x3d, 0xa6
+};
+
 static const uint8_t uuid_fv_info[16] = {
 	0x2e, 0x72, 0x8e, 0x79, 0xb2, 0x15, 0x13, 0x4e,
 	0x8a, 0xe9, 0x6b, 0xa3, 0x0f, 0xf7, 0xf1, 0x67
@@ -356,3 +361,21 @@ void fsp_find_bootloader_tolum(struct range_entry *re)
 	if (fsp_find_range_hob(re, fsp_bootloader_tolum_guid))
 		die("9.3: FSP_BOOTLOADER_TOLUM_HOB missing!\n");
 }
+
+bool fsp_display_error_info(void)
+{
+	if (!CONFIG(ENABLE_FSP_ERROR_INFO))
+		return false;
+
+	const struct hob_header *hob;
+	size_t size;
+
+	hob = (const struct hob_header *)fsp_find_extension_hob_by_guid(
+		fsp_error_info_guid, &size);
+	if (hob != NULL) {
+		display_fsp_error_info_hob(hob);
+		return true;
+	}
+
+	return false;
+}

src/drivers/intel/fsp2_0/include/fsp/soc_binding.h

@@ -33,6 +33,10 @@
 #include <FirmwareVersionInfo.h>
 #endif
 
+#if CONFIG(ENABLE_FSP_ERROR_INFO)
+#include <FspErrorInfoHob.h>
+#endif
+
 #pragma pack(pop)
 
 #endif

src/drivers/intel/fsp2_0/include/fsp/util.h

@@ -137,6 +137,8 @@ const struct hob_resource *fsp_hob_header_to_resource(
 const struct hob_header *fsp_next_hob(const struct hob_header *parent);
 bool fsp_guid_compare(const uint8_t guid1[16], const uint8_t guid2[16]);
 void fsp_find_bootloader_tolum(struct range_entry *re);
+bool fsp_display_error_info(void);
+void display_fsp_error_info_hob(const void *hob);
 void fsp_get_version(char *buf);
 /* fsp_verify_upd_header_signature calls die() on signature mismatch */
 void fsp_verify_upd_header_signature(uint64_t upd_signature, uint64_t expected_signature);