[PATCH 2/3 v5] cmd: efi: ESRT table debug print

[Jose Marinho]

This commit enables the ESRT printing from the u-boot shell by invoking:
- efidebug capsule esrt

Signed-off-by: Jose Marinho <jose.marinho at arm.com>

CC: Heinrich Schuchardt	<xypron.glpk at gmx.de>
CC: Sughosh Ganu <sughosh.ganu at linaro.org>
CC: AKASHI Takahiro <takahiro.akashi at linaro.org>
CC: Ilias Apalodimas <ilias.apalodimas at linaro.org>
CC: Andre Przywara <andre.przywara at arm.com>
CC: Alexander Graf <agraf at csgraf.de>
CC: nd at arm.com

---
 cmd/efidebug.c | 64 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 64 insertions(+)

diff --git a/cmd/efidebug.c b/cmd/efidebug.c
index a7dace2f80..5a9ff2bd9a 100644
--- a/cmd/efidebug.c
+++ b/cmd/efidebug.c
@@ -129,6 +129,61 @@ static int do_efi_capsule_show(struct cmd_tbl *cmdtp, int flag,
 	return CMD_RET_SUCCESS;
 }
 
+#ifdef CONFIG_EFI_ESRT
+/**
+ * do_efi_capsule_esrt() - manage UEFI capsules
+ *
+ * @cmdtp:	Command table
+ * @flag:	Command flag
+ * @argc:	Number of arguments
+ * @argv:	Argument array
+ * Return:	CMD_RET_SUCCESS on success,
+ *		CMD_RET_USAGE or CMD_RET_RET_FAILURE on failure
+ *
+ * Implement efidebug "capsule esrt" sub-command.
+ * The prints the current ESRT table.
+ *
+ *     efidebug capsule esrt
+ */
+static int do_efi_capsule_esrt(struct cmd_tbl *cmdtp, int flag,
+			       int argc, char * const argv[])
+{
+	struct efi_system_resource_table *esrt = NULL;
+
+	if (argc != 1)
+		return CMD_RET_USAGE;
+
+	for (int idx = 0; idx < systab.nr_tables; idx++)
+		if (!guidcmp(&efi_esrt_guid, &systab.tables[idx].guid))
+			esrt = (struct efi_system_resource_table *)systab.tables[idx].table;
+
+	if (!esrt)
+		return CMD_RET_FAILURE;
+
+	printf("========================================\n");
+	printf("ESRT: fw_resource_count=%d\n", esrt->fw_resource_count);
+	printf("ESRT: fw_resource_count_max=%d\n", esrt->fw_resource_count_max);
+	printf("ESRT: fw_resource_version=%lld\n", esrt->fw_resource_version);
+
+	for (int idx = 0; idx < esrt->fw_resource_count; idx++) {
+		printf("[entry %d]==============================\n", idx);
+		printf("ESRT: fw_class=%pUL\n", &esrt->entries[idx].fw_class);
+		printf("ESRT: fw_type=%d\n", esrt->entries[idx].fw_type);
+		printf("ESRT: fw_version=%d\n", esrt->entries[idx].fw_version);
+		printf("ESRT: lowest_supported_fw_version=%d\n",
+		       esrt->entries[idx].lowest_supported_fw_version);
+		printf("ESRT: capsule_flags=%d\n",
+		       esrt->entries[idx].capsule_flags);
+		printf("ESRT: last_attempt_version=%d\n",
+		       esrt->entries[idx].last_attempt_version);
+		printf("ESRT: last_attempt_status=%d\n",
+		       esrt->entries[idx].last_attempt_status);
+	}
+	printf("========================================\n");
+
+	return CMD_RET_SUCCESS;
+}
+#endif /*  CONFIG_EFI_ESRT */
 /**
  * do_efi_capsule_res() - show a capsule update result
  *
@@ -221,6 +276,10 @@ static struct cmd_tbl cmd_efidebug_capsule_sub[] = {
 			 "", ""),
 	U_BOOT_CMD_MKENT(show, CONFIG_SYS_MAXARGS, 1, do_efi_capsule_show,
 			 "", ""),
+#ifdef CONFIG_EFI_ESRT
+	U_BOOT_CMD_MKENT(esrt, CONFIG_SYS_MAXARGS, 1, do_efi_capsule_esrt,
+			 "", ""),
+#endif
 	U_BOOT_CMD_MKENT(disk-update, 0, 0, do_efi_capsule_on_disk_update,
 			 "", ""),
 	U_BOOT_CMD_MKENT(result, CONFIG_SYS_MAXARGS, 1, do_efi_capsule_res,
@@ -256,6 +315,7 @@ static int do_efi_capsule(struct cmd_tbl *cmdtp, int flag,
 
 	return cp->cmd(cmdtp, flag, argc, argv);
 }
+
 #endif /* CONFIG_EFI_HAVE_CAPSULE_SUPPORT */
 
 /**
@@ -1580,6 +1640,10 @@ static char efidebug_help_text[] =
 	"  - show capsule information\n"
 	"efidebug capsule result [<capsule result var>]\n"
 	"  - show a capsule update result\n"
+#ifdef CONFIG_EFI_ESRT
+	"efidebug capsule esrt\n"
+	"  - print the ESRT\n"
+#endif
 	"\n"
 #endif
 	"efidebug devices\n"
-- 
2.17.1