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make physical memory allocator try to reserve memory areas with (size/2)-aligned addresses

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This commit is contained in:
Masamichi Takagi m-takagi@ab.jp.nec.com
2012-10-30 20:53:14 +09:00
parent 3ff50170b6
commit d4770bc9af
1 changed files with 4 additions and 1 deletions
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5
kernel/mem.c
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@ -101,7 +101,10 @@ static void page_allocator_init(void)
pa_start = aal_mc_get_memory_address(AAL_MC_GMA_AVAIL_START, 0);
pa_end = aal_mc_get_memory_address(AAL_MC_GMA_AVAIL_END, 0);
pa_start &= PAGE_MASK;
// pa_start &= PAGE_MASK;
// physical memory allocator stores bitmap in array of long int
// so the unit size is 64-page
pa_start = (pa_start + PAGE_SIZE * 64 - 1) & ~(PAGE_SIZE * 64 - 1);
pa_end = (pa_end + PAGE_SIZE - 1) & PAGE_MASK;
/*