On Wed, Nov 21, 2012 at 10:47 PM, Yinghai Lu <yinghai@kernel.org> wrote:
> On Wed, Nov 21, 2012 at 9:58 PM, H. Peter Anvin <hpa@zytor.com> wrote:
>> Yes, lets...
>>
>>
>>> also do you still think need to move ext_ramdisk... ext_cmd_line_ptr
>>> from setup_header to boot_param ?
>>

how about:

diff --git a/arch/x86/include/asm/bootparam.h b/arch/x86/include/asm/bootparam.h
index 2ad874c..81b619e 100644
--- a/arch/x86/include/asm/bootparam.h
+++ b/arch/x86/include/asm/bootparam.h
@@ -100,7 +100,10 @@ struct boot_params {
        __u8  _pad2[4];                                 /* 0x054 */
        __u64  tboot_addr;                              /* 0x058 */
        struct ist_info ist_info;                       /* 0x060 */
-       __u8  _pad3[16];                                /* 0x070 */
+       __u32 ext_ramdisk_image;                        /* 0x070 */
+       __u32 ext_ramdisk_size;                         /* 0x074 */
+       __u32 ext_cmd_line_ptr;                         /* 0x078 */
+       __u8  _pad3[4];                                 /* 0x07C */
        __u8  hd0_info[16];     /* obsolete! */         /* 0x080 */
        __u8  hd1_info[16];     /* obsolete! */         /* 0x090 */
        struct sys_desc_table sys_desc_table;           /* 0x0a0 */