magenta/libmagenta/include-user/magenta/vm.h

#ifndef MAGENTA_VM_H_
#define MAGENTA_VM_H_

#include <magenta/status.h>
#include <magenta/types.h>

extern kern_status_t vm_object_create(
	const char *name,
	size_t name_len,
	size_t data_len,
	vm_prot_t prot,
	kern_handle_t *out);
extern kern_status_t vm_object_read(
	kern_handle_t object,
	void *dst,
	off_t offset,
	size_t count,
	size_t *nr_read);
extern kern_status_t vm_object_write(
	kern_handle_t object,
	const void *src,
	off_t offset,
	size_t count,
	size_t *nr_written);
extern kern_status_t vm_object_copy(
	kern_handle_t dst,
	off_t dst_offset,
	kern_handle_t src,
	off_t src_offset,
	size_t count,
	size_t *nr_copied);

extern kern_status_t address_space_read(
	kern_handle_t region,
	void *dst,
	virt_addr_t base,
	size_t count,
	size_t *nr_read);
extern kern_status_t address_space_write(
	kern_handle_t region,
	const void *src,
	virt_addr_t base,
	size_t count,
	size_t *nr_read);
extern kern_status_t address_space_map(
	kern_handle_t region,
	virt_addr_t map_address,
	kern_handle_t object,
	off_t object_offset,
	size_t length,
	vm_flags_t flags,
	vm_prot_t prot,
	virt_addr_t *out_base_address);
extern kern_status_t address_space_unmap(
	kern_handle_t region,
	virt_addr_t base,
	size_t length);
extern kern_status_t address_space_reserve(
	kern_handle_t region,
	virt_addr_t base,
	size_t length,
	virt_addr_t *out_base_address);
extern kern_status_t address_space_release(
	kern_handle_t region,
	virt_addr_t base,
	size_t length);

extern kern_status_t vm_controller_create(kern_handle_t *out);
extern kern_status_t vm_controller_recv(
	kern_handle_t ctrl,
	equeue_packet_vm_request_t *out);
extern kern_status_t vm_controller_recv_async(
	kern_handle_t ctrl,
	kern_handle_t eq,
	equeue_key_t key);
extern kern_status_t vm_controller_create_object(
	kern_handle_t ctrl,
	const char *name,
	size_t name_len,
	equeue_key_t key,
	size_t data_len,
	vm_prot_t prot,
	kern_handle_t *out);
extern kern_status_t vm_controller_prepare_attach(
	kern_handle_t ctrl,
	uint64_t req_id,
	kern_handle_t *out_vmo);
extern kern_status_t vm_controller_finish_attach(
	kern_handle_t ctrl,
	uint64_t req_id,
	equeue_key_t new_key);
extern kern_status_t vm_controller_detach_object(
	kern_handle_t ctrl,
	kern_handle_t vmo);
extern kern_status_t vm_controller_supply_pages(
	kern_handle_t ctrl,
	kern_handle_t dst_vmo,
	off_t dst_offset,
	kern_handle_t src_vmo,
	off_t src_offset,
	size_t length);

#endif