1 // Copyright 2023, The Android Open Source Project 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 //! Memory layout for crosvm for aarch64 architecture. 16 //! 17 //! https://crosvm.dev/book/appendix/memory_layout.html#common-layout 18 19 use core::ops::Range; 20 21 /// The start address of MMIO space. 22 pub const MMIO_START: usize = 0x0; 23 /// The end address of MMIO space. 24 pub const MMIO_END: usize = 0x4000_0000; 25 /// MMIO range. 26 pub const MMIO_RANGE: Range<usize> = MMIO_START..MMIO_END; 27 28 /// The start of the system's contiguous "main" memory. 29 pub const MEM_START: usize = 0x8000_0000; 30 31 /// Size of the FDT region as defined by crosvm, both in kernel and BIOS modes. 32 pub const FDT_MAX_SIZE: usize = 2 << 20; 33