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perhaps fix the bug that Linux cannot get a correct memory size.

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okuji 2000-05-04 22:15:20 +00:00
parent d08bfbd094
commit 5aef9e78a5
4 changed files with 60 additions and 21 deletions
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@ -1,3 +1,23 @@
2000-05-05 OKUJI Yoshinori <okuji@gnu.org>
Ignore any memory holes when passing the maximum memory address
to non-Multiboot kernels (i.e. Linux and *BSD).
* stage2/common.c [!STAGE1_5] (extended_memory): New global
variable.
(init_bios_info) [!STAGE1_5]: Change the type of CONT, MEMTMP
and ADDR to unsigned long from int.
Set EXTENDED_MEMORY to MBI.MEM_UPPER by default.
If MBI.MMAP_LENGTH is not zero, set EXTENDED_MEMORY to the
maximum available address, ignoring any memory holes.
If MBI.MMAP_LENGTH is zero but get_eisamemsize returns other
than -1, set EXTENDED_MEMORY to (CONT >> 10) + 0x3c00 if CONT is
non-zero, otherwise, set it to MEMTMP.
* stage2/shared.h [!STAGE1_5] (extended_memory): Declared.
* stage2/boot.c (load_image): Always pass the "mem=" option to a
Linux kernel, using EXTENDED_MEMORY instead of MBI.MEM_UPPER.
(bsd_boot): Use EXTENDED_MEMORY instead of MBI.MEM_UPPER.
2000-04-30 OKUJI Yoshinori <okuji@gnu.org>
* stage1/stage1.S (message): Use lodsb instead of incw and movb.