1 files changed, 2 insertions, 0 deletions

diff --git a/arch/x86/boot/compressed/eboot.c b/arch/x86/boot/compressed/eboot.c
index ef17683484e9..48304b89b601 100644
--- a/arch/x86/boot/compressed/eboot.c
+++ b/arch/x86/boot/compressed/eboot.c
@@ -1109,6 +1109,8 @@ struct boot_params *make_boot_params(struct efi_config *c)
         if (!cmdline_ptr)
                 goto fail;
         hdr->cmd_line_ptr = (unsigned long)cmdline_ptr;
+        /* Fill in upper bits of command line address, NOP on 32 bit  */
+        boot_params->ext_cmd_line_ptr = (u64)(unsigned long)cmdline_ptr >> 32;
 
         hdr->ramdisk_image = 0;
         hdr->ramdisk_size = 0;