Merge branch 'x86-kbuild-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'x86-kbuild-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (46 commits)
  x86, boot: add new generated files to the appropriate .gitignore files
  x86, boot: correct the calculation of ZO_INIT_SIZE
  x86-64: align __PHYSICAL_START, remove __KERNEL_ALIGN
  x86, boot: correct sanity checks in boot/compressed/misc.c
  x86: add extension fields for bootloader type and version
  x86, defconfig: update kernel position parameters
  x86, defconfig: update to current, no material changes
  x86: make CONFIG_RELOCATABLE the default
  x86: default CONFIG_PHYSICAL_START and CONFIG_PHYSICAL_ALIGN to 16 MB
  x86: document new bzImage fields
  x86, boot: make kernel_alignment adjustable; new bzImage fields
  x86, boot: remove dead code from boot/compressed/head_*.S
  x86, boot: use LOAD_PHYSICAL_ADDR on 64 bits
  x86, boot: make symbols from the main vmlinux available
  x86, boot: determine compressed code offset at compile time
  x86, boot: use appropriate rep string for move and clear
  x86, boot: zero EFLAGS on 32 bits
  x86, boot: set up the decompression stack as early as possible
  x86, boot: straighten out ranges to copy/zero in compressed/head*.S
  x86, boot: stylistic cleanups for boot/compressed/head_64.S
  ...

Fixed trivial conflict in arch/x86/configs/x86_64_defconfig manually

4 files changed, 21 insertions, 12 deletions

diff --git a/arch/x86/include/asm/boot.h b/arch/x86/include/asm/boot.h
index 6ba23dd9fc9..418e632d4a8 100644
--- a/arch/x86/include/asm/boot.h
+++ b/arch/x86/include/asm/boot.h
@@ -8,11 +8,26 @@
 
 #ifdef __KERNEL__
 
+#include <asm/page_types.h>
+
 /* Physical address where kernel should be loaded. */
 #define LOAD_PHYSICAL_ADDR ((CONFIG_PHYSICAL_START \
                                 + (CONFIG_PHYSICAL_ALIGN - 1)) \
                                 & ~(CONFIG_PHYSICAL_ALIGN - 1))
 
+/* Minimum kernel alignment, as a power of two */
+#ifdef CONFIG_x86_64
+#define MIN_KERNEL_ALIGN_LG2    PMD_SHIFT
+#else
+#define MIN_KERNEL_ALIGN_LG2    (PAGE_SHIFT+1)
+#endif
+#define MIN_KERNEL_ALIGN        (_AC(1, UL) << MIN_KERNEL_ALIGN_LG2)
+
+#if (CONFIG_PHYSICAL_ALIGN & (CONFIG_PHYSICAL_ALIGN-1)) || \
+        (CONFIG_PHYSICAL_ALIGN < (_AC(1, UL) << MIN_KERNEL_ALIGN_LG2))
+#error "Invalid value for CONFIG_PHYSICAL_ALIGN"
+#endif
+
 #ifdef CONFIG_KERNEL_BZIP2
 #define BOOT_HEAP_SIZE             0x400000
 #else /* !CONFIG_KERNEL_BZIP2 */
diff --git a/arch/x86/include/asm/bootparam.h b/arch/x86/include/asm/bootparam.h
index 433adaebf9b..1724e8de317 100644
--- a/arch/x86/include/asm/bootparam.h
+++ b/arch/x86/include/asm/bootparam.h
@@ -50,7 +50,8 @@ struct setup_header {
         __u32   ramdisk_size;
         __u32   bootsect_kludge;
         __u16   heap_end_ptr;
-        __u16   _pad1;
+        __u8    ext_loader_ver;
+        __u8    ext_loader_type;
         __u32   cmd_line_ptr;
         __u32   initrd_addr_max;
         __u32   kernel_alignment;
diff --git a/arch/x86/include/asm/page_64_types.h b/arch/x86/include/asm/page_64_types.h
index d38c91b7024..e11900f2500 100644
--- a/arch/x86/include/asm/page_64_types.h
+++ b/arch/x86/include/asm/page_64_types.h
@@ -32,17 +32,9 @@
  */
 #define __PAGE_OFFSET           _AC(0xffff880000000000, UL)
 
-#define __PHYSICAL_START        CONFIG_PHYSICAL_START
-#define __KERNEL_ALIGN          0x200000
-
-/*
- * Make sure kernel is aligned to 2MB address. Catching it at compile
- * time is better. Change your config file and compile the kernel
- * for a 2MB aligned address (CONFIG_PHYSICAL_START)
- */
-#if (CONFIG_PHYSICAL_START % __KERNEL_ALIGN) != 0
-#error "CONFIG_PHYSICAL_START must be a multiple of 2MB"
-#endif
+#define __PHYSICAL_START        ((CONFIG_PHYSICAL_START +               \
+                                  (CONFIG_PHYSICAL_ALIGN - 1)) &        \
+                                 ~(CONFIG_PHYSICAL_ALIGN - 1))
 
 #define __START_KERNEL          (__START_KERNEL_map + __PHYSICAL_START)
 #define __START_KERNEL_map      _AC(0xffffffff80000000, UL)
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index fed93fec976..6469866a741 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -815,6 +815,7 @@ extern unsigned int		BIOS_revision;
 
 /* Boot loader type from the setup header: */
 extern int                      bootloader_type;
+extern int                      bootloader_version;
 
 extern char                     ignore_fpu_irq;