blob: 0256623d3cd384c8f4f1ea8eb4102fc3d2bb9aac [file] [log] [blame]
// Copyright 2019 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// TODO(fxb/39732): This should be read as "library zx".
library zz;
using VmOption = uint32;
// TODO(scottmg): bits for ZX_VM_xyz flags, and const for ZX_VM_ALIGN_xyz.
[Transport = "Syscall"]
protocol vmar {
/// Allocate a new subregion.
/// Rights: If options & ZX_VM_CAN_MAP_READ, parent_vmar must be of type ZX_OBJ_TYPE_VMAR and have ZX_RIGHT_READ.
/// Rights: If options & ZX_VM_CAN_MAP_WRITE, parent_vmar must be of type ZX_OBJ_TYPE_VMAR and have ZX_RIGHT_WRITE.
/// Rights: If options & ZX_VM_CAN_MAP_EXECUTE, parent_vmar must be of type ZX_OBJ_TYPE_VMAR and have ZX_RIGHT_EXECUTE.
vmar_allocate(handle<vmar> parent_vmar, VmOption options, usize offset, usize size)
-> (status status, handle<vmar> child_vmar, vaddr child_addr);
// TODO(ZX-2967): handle No rights required?
/// Destroy a virtual memory address region.
vmar_destroy(handle<vmar> handle) -> (status status);
// TODO(ZX-2399): TODO handle and vmo and options must all match, and options can't specify them.
/// Add a memory mapping.
/// Rights: handle must be of type ZX_OBJ_TYPE_VMAR.
/// Rights: vmo must be of type ZX_OBJ_TYPE_VMO.
vmar_map(handle<vmar> handle, VmOption options, usize vmar_offset,
handle<vmo> vmo, uint64 vmo_offset,
usize len)
-> (status status, vaddr mapped_addr);
// TODO(ZX-2967): handle No rights required?
/// Unmap virtual memory pages.
vmar_unmap(handle<vmo> handle, vaddr addr, usize len) -> (status status);
/// Set protection of virtual memory pages.
/// Rights: If options & ZX_VM_PERM_READ, handle must be of type ZX_OBJ_TYPE_VMAR and have ZX_RIGHT_READ.
/// Rights: If options & ZX_VM_PERM_WRITE, handle must be of type ZX_OBJ_TYPE_VMAR and have ZX_RIGHT_WRITE.
/// Rights: If options & ZX_VM_PERM_EXECUTE, handle must be of type ZX_OBJ_TYPE_VMAR and have ZX_RIGHT_EXECUTE.
vmar_protect(handle<vmo> handle, VmOption options, vaddr addr, usize len) -> (status status);
/// Perform an operation on VMOs mapped into this VMAR.
/// Rights: If op is ZX_VMO_OP_DECOMMIT, affected mappings must be writable.
[Blocking]
vmar_op_range(handle<vmar> handle,
uint32 op,
vaddr address,
usize size,
mutable_vector_void buffer)
-> (status status);
};