mirror of
https://github.com/cloud-hypervisor/cloud-hypervisor.git
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112 lines
3.4 KiB
Rust
112 lines
3.4 KiB
Rust
// Copyright © 2020, Oracle and/or its affiliates.
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//
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// Copyright 2018 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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// SPDX-License-Identifier: Apache-2.0
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#![allow(
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clippy::unreadable_literal,
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clippy::redundant_static_lifetimes,
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clippy::cast_lossless,
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clippy::transmute_ptr_to_ptr,
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clippy::cast_ptr_alignment
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)]
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extern crate byteorder;
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extern crate kvm_bindings;
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extern crate libc;
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#[cfg(feature = "acpi")]
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extern crate acpi_tables;
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extern crate arch_gen;
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extern crate kvm_ioctls;
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extern crate linux_loader;
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extern crate vm_memory;
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use kvm_ioctls::*;
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use std::result;
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#[derive(Debug)]
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pub enum Error {
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#[cfg(target_arch = "x86_64")]
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/// X86_64 specific error triggered during system configuration.
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X86_64Setup(x86_64::Error),
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#[cfg(target_arch = "aarch64")]
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/// AArch64 specific error triggered during system configuration.
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AArch64Setup(aarch64::Error),
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/// The zero page extends past the end of guest_mem.
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ZeroPagePastRamEnd,
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/// Error writing the zero page of guest memory.
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ZeroPageSetup(vm_memory::GuestMemoryError),
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/// The memory map table extends past the end of guest memory.
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MemmapTablePastRamEnd,
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/// Error writing memory map table to guest memory.
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MemmapTableSetup,
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/// The hvm_start_info structure extends past the end of guest memory.
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StartInfoPastRamEnd,
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/// Error writing hvm_start_info to guest memory.
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StartInfoSetup,
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/// Failed to compute initramfs address.
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InitramfsAddress,
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/// Error writing module entry to guest memory.
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ModlistSetup(vm_memory::GuestMemoryError),
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/// RSDP Beyond Guest Memory
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RSDPPastRamEnd,
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/// Capability missing
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CapabilityMissing(Cap),
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}
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pub type Result<T> = result::Result<T, Error>;
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#[derive(PartialEq)]
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pub enum RegionType {
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/// RAM type
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Ram,
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/// SubRegion memory region.
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/// A SubRegion is a memory region sub-region, allowing for a region
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/// to be split into sub regions managed separately.
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/// For example, the x86 32-bit memory hole is a SubRegion.
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SubRegion,
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/// Reserved type.
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/// A Reserved memory region is one that should not be used for memory
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/// allocation. This type can be used to prevent the VMM from allocating
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/// memory ranges in a specific address range.
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Reserved,
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}
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#[cfg(target_arch = "aarch64")]
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pub mod aarch64;
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#[cfg(target_arch = "aarch64")]
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pub use aarch64::{
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arch_memory_regions, check_required_kvm_extensions, configure_system, configure_vcpu,
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get_host_cpu_phys_bits, get_reserved_mem_addr, layout::CMDLINE_MAX_SIZE, layout::CMDLINE_START,
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EntryPoint,
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};
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#[cfg(target_arch = "x86_64")]
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pub mod x86_64;
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#[cfg(target_arch = "x86_64")]
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pub use x86_64::{
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arch_memory_regions, check_required_kvm_extensions, configure_system, configure_vcpu,
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get_host_cpu_phys_bits, initramfs_load_addr, layout, layout::CMDLINE_MAX_SIZE,
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layout::CMDLINE_START, regs, BootProtocol, CpuidPatch, CpuidReg, EntryPoint,
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};
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/// Safe wrapper for `sysconf(_SC_PAGESIZE)`.
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#[cfg(target_arch = "x86_64")]
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#[inline(always)]
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fn pagesize() -> usize {
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// Trivially safe
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unsafe { libc::sysconf(libc::_SC_PAGESIZE) as usize }
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}
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/// Type for passing information about the initramfs in the guest memory.
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pub struct InitramfsConfig {
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/// Load address of initramfs in guest memory
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pub address: vm_memory::GuestAddress,
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/// Size of initramfs in guest memory
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pub size: usize,
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}
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