summaryrefslogtreecommitdiffstats
path: root/arch/x86/boot/compressed/misc.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2009-06-10 15:30:41 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-06-10 15:30:41 -0700
commit82782ca77d1bfb32b0334cce40a25b91bd8ec016 (patch)
treed8c73212af80ed9aa314612e2b8b9e6cf74c47f7 /arch/x86/boot/compressed/misc.c
parentf0d5e12bd42b7173ebbbf59279c867605f859814 (diff)
parent6799687a53a28536fd027ccb644833f66a778925 (diff)
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
Diffstat (limited to 'arch/x86/boot/compressed/misc.c')
-rw-r--r--arch/x86/boot/compressed/misc.c12
1 files changed, 5 insertions, 7 deletions
diff --git a/arch/x86/boot/compressed/misc.c b/arch/x86/boot/compressed/misc.c
index e45be73684f..842b2a36174 100644
--- a/arch/x86/boot/compressed/misc.c
+++ b/arch/x86/boot/compressed/misc.c
@@ -325,21 +325,19 @@ asmlinkage void decompress_kernel(void *rmode, memptr heap,
free_mem_ptr = heap; /* Heap */
free_mem_end_ptr = heap + BOOT_HEAP_SIZE;
+ if ((unsigned long)output & (MIN_KERNEL_ALIGN - 1))
+ error("Destination address inappropriately aligned");
#ifdef CONFIG_X86_64
- if ((unsigned long)output & (__KERNEL_ALIGN - 1))
- error("Destination address not 2M aligned");
- if ((unsigned long)output >= 0xffffffffffUL)
+ if (heap > 0x3fffffffffffUL)
error("Destination address too large");
#else
- if ((u32)output & (CONFIG_PHYSICAL_ALIGN - 1))
- error("Destination address not CONFIG_PHYSICAL_ALIGN aligned");
if (heap > ((-__PAGE_OFFSET-(512<<20)-1) & 0x7fffffff))
error("Destination address too large");
+#endif
#ifndef CONFIG_RELOCATABLE
- if ((u32)output != LOAD_PHYSICAL_ADDR)
+ if ((unsigned long)output != LOAD_PHYSICAL_ADDR)
error("Wrong destination address");
#endif
-#endif
if (!quiet)
putstr("\nDecompressing Linux... ");