mirror of
https://github.com/cloud-hypervisor/cloud-hypervisor.git
synced 2024-09-12 18:15:06 +00:00
0e7a1fc923
Using the existing layout module start documenting the major regions of RAM and those areas that are reserved. Some of the constants have also been renamed to be more consistent and some functions that returned constant variables have been replaced. Future commits will move more constants into this file to make it the canonical source of information about the memory layout. Signed-off-by: Rob Bradford <robert.bradford@intel.com>
71 lines
1.9 KiB
Rust
71 lines
1.9 KiB
Rust
// Copyright 2018 Amazon.com, Inc. or its affiliates. All Rights Reserved.
|
|
// SPDX-License-Identifier: Apache-2.0
|
|
|
|
#![allow(
|
|
clippy::unreadable_literal,
|
|
clippy::redundant_static_lifetimes,
|
|
clippy::cast_lossless,
|
|
clippy::transmute_ptr_to_ptr,
|
|
clippy::cast_ptr_alignment
|
|
)]
|
|
|
|
extern crate byteorder;
|
|
extern crate kvm_bindings;
|
|
extern crate libc;
|
|
|
|
#[cfg(feature = "acpi")]
|
|
extern crate acpi_tables;
|
|
extern crate arch_gen;
|
|
extern crate kvm_ioctls;
|
|
extern crate linux_loader;
|
|
extern crate vm_memory;
|
|
|
|
use std::result;
|
|
|
|
#[derive(Debug, PartialEq)]
|
|
pub enum Error {
|
|
#[cfg(target_arch = "x86_64")]
|
|
/// X86_64 specific error triggered during system configuration.
|
|
X86_64Setup(x86_64::Error),
|
|
/// The zero page extends past the end of guest_mem.
|
|
ZeroPagePastRamEnd,
|
|
/// Error writing the zero page of guest memory.
|
|
ZeroPageSetup,
|
|
}
|
|
pub type Result<T> = result::Result<T, Error>;
|
|
|
|
#[derive(PartialEq)]
|
|
pub enum RegionType {
|
|
/// RAM type
|
|
Ram,
|
|
|
|
/// SubRegion memory region.
|
|
/// A SubRegion is a memory region sub-region, allowing for a region
|
|
/// to be split into sub regions managed separately.
|
|
/// For example, the x86 32-bit memory hole is a SubRegion.
|
|
SubRegion,
|
|
|
|
/// Reserved type.
|
|
/// A Reserved memory region is one that should not be used for memory
|
|
/// allocation. This type can be used to prevent the VMM from allocating
|
|
/// memory ranges in a specific address range.
|
|
Reserved,
|
|
}
|
|
|
|
#[cfg(target_arch = "aarch64")]
|
|
pub mod aarch64;
|
|
|
|
#[cfg(target_arch = "aarch64")]
|
|
pub use aarch64::{
|
|
arch_memory_regions, configure_system, get_reserved_mem_addr, layout::CMDLINE_MAX_SIZE,
|
|
layout::CMDLINE_START,
|
|
};
|
|
|
|
#[cfg(target_arch = "x86_64")]
|
|
pub mod x86_64;
|
|
|
|
#[cfg(target_arch = "x86_64")]
|
|
pub use x86_64::{
|
|
arch_memory_regions, configure_system, layout, layout::CMDLINE_MAX_SIZE, layout::CMDLINE_START,
|
|
};
|