From 54b6ba5f27dd9eb9ec2f1a41e7160964ab94451c Mon Sep 17 00:00:00 2001
From: Michael Chang <mchang@suse.com>
Date: Wed, 23 Nov 2016 16:52:16 +0800
Subject: Build tpm as module

Add --suse-enable-tpm option to grub2-install.

Index: grub-2.04~rc1/util/grub-install.c
===================================================================
--- grub-2.04~rc1.orig/util/grub-install.c
+++ grub-2.04~rc1/util/grub-install.c
@@ -80,6 +80,7 @@ static char *label_color;
 static char *label_bgcolor;
 static char *product_version;
 static int add_rs_codes = 1;
+static int suse_enable_tpm = 0;
 
 enum
   {
@@ -106,6 +107,7 @@ enum
     OPTION_DISK_MODULE,
     OPTION_NO_BOOTSECTOR,
     OPTION_NO_RS_CODES,
+    OPTION_SUSE_ENABLE_TPM,
     OPTION_MACPPC_DIRECTORY,
     OPTION_ZIPL_DIRECTORY,
     OPTION_LABEL_FONT,
@@ -231,6 +233,10 @@ argp_parser (int key, char *arg, struct
       add_rs_codes = 0;
       return 0;
 
+    case OPTION_SUSE_ENABLE_TPM:
+      suse_enable_tpm = 1;
+      return 0;
+
     case OPTION_DEBUG:
       verbosity++;
       return 0;
@@ -292,6 +298,7 @@ static struct argp_option options[] = {
   {"no-rs-codes", OPTION_NO_RS_CODES, 0, 0,
    N_("Do not apply any reed-solomon codes when embedding core.img. "
       "This option is only available on x86 BIOS targets."), 0},
+  {"suse-enable-tpm", OPTION_SUSE_ENABLE_TPM, 0, 0, N_("install TPM modules"), 0},
 
   {"debug", OPTION_DEBUG, 0, OPTION_HIDDEN, 0, 2},
   {"no-floppy", OPTION_NO_FLOPPY, 0, OPTION_HIDDEN, 0, 2},
@@ -1320,6 +1327,9 @@ main (int argc, char *argv[])
   else if (disk_module && disk_module[0])
     grub_install_push_module (disk_module);
 
+  if (suse_enable_tpm && platform == GRUB_INSTALL_PLATFORM_X86_64_EFI)
+    grub_install_push_module ("tpm");
+
   relative_grubdir = grub_make_system_path_relative_to_its_root (grubdir);
   if (relative_grubdir[0] == '\0')
     {