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query and reserve pages for BIOS reserved memory areas

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This commit is contained in:
Balazs Gerofi
2012-09-22 19:49:36 +09:00
parent b61745e704
commit a280ba0b30
1 changed files with 15 additions and 0 deletions
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15
kernel/mem.c
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@ -92,6 +92,7 @@ static void page_allocator_init(void)
{
unsigned long page_map_pa, pages;
void *page_map;
unsigned int i;
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);
@ -99,13 +100,27 @@ static void page_allocator_init(void)
pa_start &= PAGE_MASK;
pa_end = (pa_end + PAGE_SIZE - 1) & PAGE_MASK;
/*
page_map_pa = aal_mc_get_memory_address(AAL_MC_GMA_HEAP_START, 0);
page_map = phys_to_virt(page_map_pa);
* Can't allocate in reserved area
* TODO: figure this out automatically!
*/
page_map_pa = 0x100000;
page_map = phys_to_virt(page_map_pa);
pa_allocator = __aal_pagealloc_init(pa_start, pa_end - pa_start,
PAGE_SIZE, page_map, &pages);
reserve_pages(page_map_pa, page_map_pa + pages * PAGE_SIZE, 0);
/* BIOS reserved ranges */
for (i = 1; i <= aal_mc_get_memory_address(AAL_MC_NR_RESERVED_AREAS, 0);
++i) {
reserve_pages(aal_mc_get_memory_address(AAL_MC_RESERVED_AREA_START, i),
aal_mc_get_memory_address(AAL_MC_RESERVED_AREA_END, i), 0);
}
aal_mc_reserve_arch_pages(pa_start, pa_end, reserve_pages);