Let's build a VMM (Virtual Machine Minotor or hypervisor) upon ArceOS unikernel!
Overall architecture overview can be found here.
Refer to these discussions to gain insights into the thoughts and future development directions of this project.
Install cargo-binutils to use rust-objcopy and rust-objdump tools:
$ cargo install cargo-binutilsYour also need to install musl-gcc to build guest user applications.
We provide several configuration file templates for setting up guest VMs.
These configuration files are read and parsed by the init_guest_vms() in the vmm/config mod, and are used to configure the guest VMs.
WIP on Linux guests.
$ cd arceos-vmm
$ make disk_img
$
$ # Copy guest VM binary image files.
$ mkdir -p tmp
$ sudo mount disk.img tmp
$ sudo cp /PATH/TO/YOUR/GUEST/VM/IMAGE tmp/
$ sudo umount tmp
$
$ # Otherwise, set `image_location = "memory"` in CONFIG/FILE, then set kernel_path
$ # Arceos-VMM will load the image binaries from the first configuration in the VM_CONFIGS.First, you need to prepare your configuration file for the guest VM (several examples are provided in the configs directory), and then run the hypervisor with the following command:
$ cd arceos-vmm
# x86_64
$ make ACCEL=y ARCH=x86_64 [LOG=warn|info|debug|trace] VM_CONFIGS=/PATH/TO/CONFIG/FILE run
# aarch64
$ make ACCEL=n ARCH=aarch64 [LOG=warn|info|debug|trace] VM_CONFIGS=/PATH/TO/CONFIG/FILE run
# riscv64
$ make ACCEL=n ARCH=riscv64 [LOG=warn|info|debug|trace] VM_CONFIGS=/PATH/TO/CONFIG/FILE run
......
Booting from ROM..
Initialize IDT & GDT...
d8888 .d88888b. .d8888b.
d88888 d88P" "Y88b d88P Y88b
d88P888 888 888 Y88b.
d88P 888 888d888 .d8888b .d88b. 888 888 "Y888b.
d88P 888 888P" d88P" d8P Y8b 888 888 "Y88b.
d88P 888 888 888 88888888 888 888 "888
d8888888888 888 Y88b. Y8b. Y88b. .d88P Y88b d88P
d88P 888 888 "Y8888P "Y8888 "Y88888P" "Y8888P"
arch = x86_64
platform = x86_64-qemu-q35
target = x86_64-unknown-none
smp = 1
build_mode = release
log_level = warn
Starting virtualization...
Running guest...
NN NN iii bb OOOOO SSSSS
NNN NN mm mm mmmm bb OO OO SS
NN N NN iii mmm mm mm bbbbbb OO OO SSSSS
NN NNN iii mmm mm mm bb bb OO OO SS
NN NN iii mmm mm mm bbbbbb OOOO0 SSSSS
___ ____ ___ ___
|__ \ / __ \ |__ \ |__ \
__/ / / / / / __/ / __/ /
/ __/ / /_/ / / __/ / __/
/____/ \____/ /____/ /____/
arch = x86_64
platform = rvm-guest-x86_64
build_mode = release
log_level = warn
Initializing kernel heap at: [0xffffff800028ed00, 0xffffff800068ed00)
Initializing IDT...
Loading GDT for CPU 0...
Initializing frame allocator at: [PA:0x68f000, PA:0x1000000)
Mapping .text: [0xffffff8000200000, 0xffffff800021b000)
Mapping .rodata: [0xffffff800021b000, 0xffffff8000220000)
Mapping .data: [0xffffff8000220000, 0xffffff800028a000)
Mapping .bss: [0xffffff800028e000, 0xffffff800068f000)
Mapping boot stack: [0xffffff800028a000, 0xffffff800028e000)
Mapping physical memory: [0xffffff800068f000, 0xffffff8001000000)
Mapping MMIO: [0xffffff80fec00000, 0xffffff80fec01000)
Mapping MMIO: [0xffffff80fed00000, 0xffffff80fed01000)
Mapping MMIO: [0xffffff80fee00000, 0xffffff80fee01000)
Initializing drivers...
Initializing Local APIC...
Initializing HPET...
HPET: 100.000000 MHz, 64-bit, 3 timers
Calibrated TSC frequency: 2993.778 MHz
Calibrated LAPIC frequency: 1000.522 MHz
Initializing task manager...
/**** APPS ****
cyclictest
exit
fantastic_text
forktest
forktest2
forktest_simple
forktest_simple_c
forktree
hello_c
hello_world
matrix
sleep
sleep_simple
stack_overflow
thread_simple
user_shell
usertests
yield
**************/
Running tasks...
test kernel task: pid = TaskId(2), arg = 0xdead
test kernel task: pid = TaskId(3), arg = 0xbeef
Rust user shell
>> hello_world
Hello world from user mode program!
Shell: Process 5 exited with code 0
>>
......