cmd: efi: ESRT table debug print

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

CC: Heinrich Schuchardt	<xypron.glpk@gmx.de>
CC: Sughosh Ganu <sughosh.ganu@linaro.org>
CC: AKASHI Takahiro <takahiro.akashi@linaro.org>
CC: Ilias Apalodimas <ilias.apalodimas@linaro.org>
CC: Andre Przywara <andre.przywara@arm.com>
CC: Alexander Graf <agraf@csgraf.de>
CC: nd@arm.com
Signed-off-by: Jose Marinho <jose.marinho@arm.com>
Reviwed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

diff --git a/cmd/efidebug.c b/cmd/efidebug.c
index 392d2d5..6e36575 100644 (file)
--- a/cmd/efidebug.c
+++ b/cmd/efidebug.c
@@ -131,6 +131,82 @@ static int do_efi_capsule_show(struct cmd_tbl *cmdtp, int flag,
        return CMD_RET_SUCCESS;
 }
 
+#ifdef CONFIG_EFI_ESRT
+
+#define EFI_ESRT_FW_TYPE_NUM 4
+char *efi_fw_type_str[EFI_ESRT_FW_TYPE_NUM] = {"unknown", "system FW", "device FW",
+        "UEFI driver"};
+
+#define EFI_ESRT_UPDATE_STATUS_NUM 9
+char *efi_update_status_str[EFI_ESRT_UPDATE_STATUS_NUM] = {"success", "unsuccessful",
+       "insufficient resources", "incorrect version", "invalid format",
+       "auth error", "power event (AC)", "power event (batt)",
+       "unsatisfied dependencies"};
+
+#define EFI_FW_TYPE_STR_GET(idx) (\
+EFI_ESRT_FW_TYPE_NUM > (idx) ? efi_fw_type_str[(idx)] : "error"\
+)
+
+#define EFI_FW_STATUS_STR_GET(idx) (\
+EFI_ESRT_UPDATE_STATUS_NUM  > (idx) ? efi_update_status_str[(idx)] : "error"\
+)
+
+/**
+ * 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) {
+               log_info("ESRT: table not present\n");
+               return CMD_RET_SUCCESS;
+       }
+
+       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=%s\n", EFI_FW_TYPE_STR_GET(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=%s\n",
+                      EFI_FW_STATUS_STR_GET(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
  *
@@ -223,6 +299,10 @@ 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,
@@ -1703,6 +1783,10 @@ 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"