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25 lines
777 B
C
25 lines
777 B
C
#ifndef __MM0_UTCB_H__
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#define __MM0_UTCB_H__
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#include <l4lib/types.h>
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#include <task.h>
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#define UTCB_PREFAULT (1 << 0) /* Prefaults utcb pages after mapping */
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#define UTCB_NEW_SHM (1 << 1) /* Creates a new shm segment for utcb */
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#define UTCB_NEW_ADDRESS (1 << 2) /* Allocates a virtual address for utcb */
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int utcb_pool_init(void);
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void *utcb_new_address(void);
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int utcb_delete_address(void *utcb_addr);
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/* IPC to send utcb address information to tasks */
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void *task_send_utcb_address(struct tcb *sender, l4id_t taskid);
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int utcb_map_to_task(struct tcb *owner, struct tcb *mapper, unsigned int flags);
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int utcb_unmap_from_task(struct tcb *owner, struct tcb *mapper);
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/* Prefault an *mmaped* utcb */
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int utcb_prefault(struct tcb *task, unsigned int vmflags);
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#endif
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