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Zach Reizner fd3425db47 sys_util: add shared memory module 
This CL adds the SharedMemory structure for managing memory attached to
a file descriptor, which can be sent to external processes.

TEST=cargo test
BUG=chromium:738638

Change-Id: I2b6a10e0e7275367ddb578831a73de6956d231bb
Reviewed-on: https://chromium-review.googlesource.com/562509
Commit-Ready: Zach Reizner <zachr@chromium.org>
Tested-by: Zach Reizner <zachr@chromium.org>
Reviewed-by: Dylan Reid <dgreid@chromium.org>
2017-07-10 11:22:37 -07:00
data_model data_model: add volatile_memory module for volatile access 2017-06-27 10:55:45 -07:00
io_jail io_jail: add bind mount 2017-06-30 22:24:50 -07:00
kernel_loader kernel_loader: Fix clippy warnings. 2017-06-30 22:24:49 -07:00
kvm sys_util: Add guest_memory 2017-05-25 22:51:14 -07:00
kvm_sys kvm-sys: rename to kvm_sys 2017-05-02 05:20:27 -07:00
src crosvm: fix ordering of args for ack_features 2017-07-07 13:15:46 -07:00
sys_util sys_util: add shared memory module 2017-07-10 11:22:37 -07:00
syscall_defines syscall_defines: Add linux syscall defines. 2017-05-29 21:49:05 -07:00
x86_64 Limit types that can be read from guest memory 2017-06-27 00:20:33 -07:00
.gitignore gitignore: Remove Cargo.lock 2017-06-17 01:12:44 -07:00
block_device.policy crosvm: Put block device process in a minijail 2017-07-06 21:13:55 -07:00
Cargo.toml crosvm: Put block device process in a minijail 2017-07-06 21:13:55 -07:00
LICENSE add LICENSE and README 2017-04-17 14:06:21 -07:00
README.md crosvm: Add crosvm main program 2017-07-05 21:54:52 -07:00

README.md

Chrome OS KVM

This component, known as crosvm, runs untrusted operating systems along with virtualized devices. No actual hardware is emulated. This only runs VMs through the Linux's KVM interface. What makes crosvm unique is a focus on safety within the programming language and a sandbox around the virtual devices to protect the kernel from attack in case of an exploit in the devices.

Overview

The crosvm source code is organized into crates, each with their own unit tests. These crates are:

  • kernel_loader Loads elf64 kernel files to a slice of memory.
  • kvm_sys low-level (mostly) auto-generated structures and constants for using KVM
  • kvm unsafe, low-level wrapper code for using kvm_sys
  • crosvm the top-level binary front-end for using crosvm
  • x86_64 Support code specific to 64 bit intel machines.

Usage

Currently there is no front-end, so the best you can do is run cargo test in each crate.