x86, boot: correct sanity checks in boot/compressed/misc.c

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arch/x86/boot/compressed/misc.c contains several sanity checks on the
output address.  Correct constraints that are no longer correct:

- the alignment test should be MIN_KERNEL_ALIGN on both 32 and 64
  bits.
- the 64 bit maximum address was set to 2^40, which was the limit of
  one specific x86-64 implementation.  Change the test to 2^46, the
  current Linux limit, and at least try to test the end rather than
  the beginning.
- for non-relocatable kernels, test against LOAD_PHYSICAL_ADDR on both
  32 and 64 bits.

[ Impact: fix potential boot failure due to invalid tests ]

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

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This commit is contained in:

H. Peter Anvin 2009-05-12 11:33:08 -07:00

parent 5031296c57

commit 7ed42a28b2

1 changed files with 5 additions and 7 deletions

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arch/x86/boot/compressed/misc.c

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