diff --git a/tboot-gcc7.patch b/tboot-gcc7.patch
new file mode 100644
index 0000000..b59936f
--- /dev/null
+++ b/tboot-gcc7.patch
@@ -0,0 +1,86 @@
+Index: tboot-1.9.5/tboot/common/tboot.c
+===================================================================
+--- tboot-1.9.5.orig/tboot/common/tboot.c
++++ tboot-1.9.5/tboot/common/tboot.c
+@@ -501,11 +501,13 @@ static void shutdown_system(uint32_t shu
+             /* write our S3 resume vector to ACPI resume addr */
+             set_s3_resume_vector(&_tboot_shared.acpi_sinfo,  TBOOT_S3_WAKEUP_ADDR);
+             /* fall through for rest of Sx handling */
++	    /* FALLTHROUGH */
+         case TB_SHUTDOWN_S4:
+         case TB_SHUTDOWN_S5:
+             machine_sleep(&_tboot_shared.acpi_sinfo);
+             /* if machine_sleep() fails, fall through to reset */
+ 
++	    /* FALLTHROUGH */
+         case TB_SHUTDOWN_REBOOT:
+             if ( txt_is_powercycle_required() ) {
+                 /* powercycle by writing 0x0a+0x0e to port 0xcf9 */
+@@ -524,6 +526,7 @@ static void shutdown_system(uint32_t shu
+                 outb(0xcf9, 0x06);
+             }
+ 
++	    /* FALLTHROUGH */
+         case TB_SHUTDOWN_HALT:
+         default:
+             while ( true )
+Index: tboot-1.9.5/tboot/common/vsprintf.c
+===================================================================
+--- tboot-1.9.5.orig/tboot/common/vsprintf.c
++++ tboot-1.9.5/tboot/common/vsprintf.c
+@@ -404,6 +404,7 @@ handle_width:
+         case 'p':
+             mods.flag |= PREFIX;    /* print prefix 0x for %p */
+             mods.flag_long = LONG;
++	    /* FALLTHROUGH */
+         case 'x':
+             mods.base = 16;
+             buf_pos = write_number_to_buffer(buf, size, buf_pos, mods);
+Index: tboot-1.9.5/tboot/common/tpm.c
+===================================================================
+--- tboot-1.9.5.orig/tboot/common/tpm.c
++++ tboot-1.9.5/tboot/common/tpm.c
+@@ -117,14 +117,14 @@ static bool tpm_send_cmd_ready_status_cr
+ #endif
+ 
+ 	if ( reg_ctrl_sts.tpmidle== 1) {
+-           reg_ctrl_request._raw[0] = 0;
++	   memset(&reg_ctrl_request,0,sizeof(reg_ctrl_request));
+            reg_ctrl_request.cmdReady = 1;
+ 	    write_tpm_reg(locality, TPM_CRB_CTRL_REQ, &reg_ctrl_request);
+ 
+ 	    return true;
+ 	}
+ 
+-      reg_ctrl_request._raw[0] = 0;
++      memset(&reg_ctrl_request,0,sizeof(reg_ctrl_request));
+       reg_ctrl_request.goIdle = 1;
+       write_tpm_reg(locality, TPM_CRB_CTRL_REQ, &reg_ctrl_request);
+ 	  
+@@ -158,7 +158,7 @@ static bool tpm_send_cmd_ready_status_cr
+        printk(TBOOT_INFO"2. reg_ctrl_sts.tpmsts: 0x%x\n", reg_ctrl_sts.tpmsts); 	
+ #endif
+ 
+-       reg_ctrl_request._raw[0] = 0;
++      memset(&reg_ctrl_request,0,sizeof(reg_ctrl_request));
+        reg_ctrl_request.cmdReady = 1;
+ 	write_tpm_reg(locality, TPM_CRB_CTRL_REQ, &reg_ctrl_request);
+ 
+@@ -724,7 +724,7 @@ bool tpm_relinquish_locality_crb(uint32_
+     if ( reg_loc_state.loc_assigned == 0 )    return true;
+ 
+     /* make inactive by writing a 1 */
+-    reg_loc_ctrl._raw[0] = 0;
++    memset(&reg_loc_ctrl,0,sizeof(reg_loc_ctrl));
+     reg_loc_ctrl.relinquish = 1;
+     write_tpm_reg(locality, TPM_REG_LOC_CTRL, &reg_loc_ctrl);
+ 
+@@ -778,7 +778,7 @@ bool tpm_request_locality_crb(uint32_t l
+     tpm_reg_loc_state_t  reg_loc_state;
+     tpm_reg_loc_ctrl_t    reg_loc_ctrl;
+     /* request access to the TPM from locality N */
+-    reg_loc_ctrl._raw[0] = 0;
++    memset(&reg_loc_ctrl,0,sizeof(reg_loc_ctrl));
+     reg_loc_ctrl.requestAccess = 1;
+     write_tpm_reg(locality, TPM_REG_LOC_CTRL, &reg_loc_ctrl);
+ 
diff --git a/tboot.changes b/tboot.changes
index 98c0d1d..ddf0378 100644
--- a/tboot.changes
+++ b/tboot.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Sun Jun  4 08:43:14 UTC 2017 - meissner@suse.com
+
+- tboot-gcc7.patch: fix some gcc7 warnings that lead to errors. (bsc#1041264)
+
 -------------------------------------------------------------------
 Sun Apr 30 05:29:57 UTC 2017 - bwiedemann@suse.com
 
@@ -82,7 +87,7 @@ Fri May  8 12:08:52 UTC 2015 - meissner@suse.com
   * Fixed bug for wrong assumption on the way how GRUB2 load modules
   * Fixed MB2 tags mess issue caused by moving shorter module cmdline to head
   * Fixed compile issue when debug=y
-
+- fixes a boot issue on Skylake (bsc#964408)
 - refreshed tboot-grub2-fix-xen-submenu-name.patch
 
 -------------------------------------------------------------------
diff --git a/tboot.spec b/tboot.spec
index fa96cc5..3563ee9 100644
--- a/tboot.spec
+++ b/tboot.spec
@@ -30,6 +30,7 @@ Patch3:         tboot-grub2-fix-menu-in-xen-host-server.patch
 Patch4:         tboot-grub2-fix-xen-submenu-name.patch
 # PATCH-FIX-UPSTREAM -- https://sourceforge.net/p/tboot/code/merge-requests/1/
 Patch5:         reproducible.patch
+Patch6:         tboot-gcc7.patch
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build
 BuildRequires:  openssl-devel
 BuildRequires:  trousers-devel
@@ -46,6 +47,7 @@ verified launch of an OS kernel/VMM.
 %patch3 -p1
 %patch4 -p1
 %patch5 -p1
+%patch6 -p1
 
 %build
 export CFLAGS="%{optflags}"