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set present bit in the PML4 entries

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This commit is contained in:
Stefan Lankes 2015-08-28 07:56:56 +02:00
parent 987ea13265
commit a48e28f88f
1 changed files with 3 additions and 0 deletions
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3
hermit/arch/x86/mm/page.c
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@ -265,6 +265,9 @@ int page_map_copy(task_t *dest)
return 0;
}
// set present bit
dest->page_map |= PG_PRESENT;
spinlock_irqsave_lock(&curr_task->page_lock);
self[PAGE_LEVELS-1][PAGE_MAP_ENTRIES-2] = dest->page_map | PG_PRESENT | PG_SELF | PG_RW;