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#include <memstr.h>
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#include <memstr.h>
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#include <arch.h>
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#include <arch.h>
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static pte_t *ptl0_create(int flags);
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static pte_t *ptl0_create(int flags);
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static void pt_lock(as_t *as, bool lock);
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static void pt_unlock(as_t *as, bool unlock);
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as_operations_t as_pt_operations = {
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as_operations_t as_pt_operations = {
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    .page_table_create = ptl0_create
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    .page_table_create = ptl0_create,
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    .page_table_lock = pt_lock,
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    .page_table_unlock = pt_unlock
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};
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};
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/** Create PTL0.
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/** Create PTL0.
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 *
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 *
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 * PTL0 of 4-level page table will be created for each address space.
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 * PTL0 of 4-level page table will be created for each address space.
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        interrupts_restore(ipl);
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        interrupts_restore(ipl);
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    }
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    }
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    return (pte_t *) KA2PA((__address) dst_ptl0);
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    return (pte_t *) KA2PA((__address) dst_ptl0);
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}
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}
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/** Lock page tables.
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 *
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 * Lock only the address space.
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 * Interrupts must be disabled.
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 *
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 * @param as Address space.
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 * @param lock If false, do not attempt to lock the address space.
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 */
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void pt_lock(as_t *as, bool lock)
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{
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    if (lock)
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        spinlock_lock(&as->lock);
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}
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/** Unlock page tables.
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 *
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 * Unlock the address space.
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 * Interrupts must be disabled.
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 *
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 * @param as Address space.
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 * @param unlock If false, do not attempt to unlock the address space.
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 */
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void pt_unlock(as_t *as, bool unlock)
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{
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    if (unlock)
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        spinlock_unlock(&as->lock);
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}