cloud-hypervisor/arch/src/lib.rs
Michael Zhao 8f7dc73562 vmm: Move Vcpu::configure() to arch crate
Signed-off-by: Michael Zhao <michael.zhao@arm.com>
2020-06-03 11:27:29 +02:00

112 lines
3.4 KiB
Rust

// Copyright © 2020, Oracle and/or its affiliates.
//
// 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 kvm_ioctls::*;
use std::result;
#[derive(Debug)]
pub enum Error {
#[cfg(target_arch = "x86_64")]
/// X86_64 specific error triggered during system configuration.
X86_64Setup(x86_64::Error),
#[cfg(target_arch = "aarch64")]
/// AArch64 specific error triggered during system configuration.
AArch64Setup(aarch64::Error),
/// The zero page extends past the end of guest_mem.
ZeroPagePastRamEnd,
/// Error writing the zero page of guest memory.
ZeroPageSetup(vm_memory::GuestMemoryError),
/// The memory map table extends past the end of guest memory.
MemmapTablePastRamEnd,
/// Error writing memory map table to guest memory.
MemmapTableSetup,
/// The hvm_start_info structure extends past the end of guest memory.
StartInfoPastRamEnd,
/// Error writing hvm_start_info to guest memory.
StartInfoSetup,
/// Failed to compute initramfs address.
InitramfsAddress,
/// Error writing module entry to guest memory.
ModlistSetup(vm_memory::GuestMemoryError),
/// RSDP Beyond Guest Memory
RSDPPastRamEnd,
/// Capability missing
CapabilityMissing(Cap),
}
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, check_required_kvm_extensions, configure_system, configure_vcpu,
get_host_cpu_phys_bits, get_reserved_mem_addr, layout::CMDLINE_MAX_SIZE, layout::CMDLINE_START,
EntryPoint,
};
#[cfg(target_arch = "x86_64")]
pub mod x86_64;
#[cfg(target_arch = "x86_64")]
pub use x86_64::{
arch_memory_regions, check_required_kvm_extensions, configure_system, configure_vcpu,
get_host_cpu_phys_bits, initramfs_load_addr, layout, layout::CMDLINE_MAX_SIZE,
layout::CMDLINE_START, regs, BootProtocol, CpuidPatch, CpuidReg, EntryPoint,
};
/// Safe wrapper for `sysconf(_SC_PAGESIZE)`.
#[cfg(target_arch = "x86_64")]
#[inline(always)]
fn pagesize() -> usize {
// Trivially safe
unsafe { libc::sysconf(libc::_SC_PAGESIZE) as usize }
}
/// Type for passing information about the initramfs in the guest memory.
pub struct InitramfsConfig {
/// Load address of initramfs in guest memory
pub address: vm_memory::GuestAddress,
/// Size of initramfs in guest memory
pub size: usize,
}