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[prefix] Use area at top of INT 15,88 memory map for temporary decompression

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Use INT 15,88 to find a suitable temporary decompression area, rather
than a fixed address.  This hopefully gives us a better chance of not
treading on any PMM-allocated areas, in BIOSes where PMM support
exists but tends not to give us the large blocks that we ask for.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2010-04-24 22:22:54 +01:00
parent bae3964e6f
commit f0ae1d58e8
3 changed files with 27 additions and 17 deletions
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2
src/arch/i386/scripts/i386.lds
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@@ -208,4 +208,6 @@ SECTIONS {
*/
_text16_memsz_pgh = ( ( _text16_memsz + 15 ) / 16 );
_data16_memsz_pgh = ( ( _data16_memsz + 15 ) / 16 );
_textdata_memsz_pgh = ( ( _textdata_memsz + 15 ) / 16 );
_textdata_memsz_kb = ( ( _textdata_memsz + 1023 ) / 1024 );
}